1. Preparation instructions
1, the construction organization design according to the country's current design, construction, acceptance of the norms, rules and standards adopted by the norms, rules and standards and industry standards, as well as bidding documents, contract documents, design specifications compiled.
2, the scope of preparation: the station center mileage is located in K2027 +188.65, the construction includes building construction (including indoor and outdoor works and related HVAC, electrical, fire, indoor and outdoor decoration, water supply and drainage, communications and information systems), buildings (including flyovers, basic platforms, no platform columns wind and rain shed and other projects).
2. Study, deepen the design, preliminary design approval
Shihezi station station building renovation and expansion of preliminary design modifications and additions (Xinjiang Railway Survey and Design Institute Architectural Branch in June 2009).
Ministry of railways? On Shihezi station station room expansion project preliminary design approval? (Tie Jianhuan? 2009? No. 1736)
3. Design drawings and specifications
3.1 Design drawings
Jianshi-01~Jianshi-21, Jieshi-01~Jieshi-75, and drawings of hydropower and electric power
4. Construction survey
Shixhezi station is located in the center of mileage of the K2027 + 188.65
The center mileage of Shihezi station is located at K2027+188.65. It is located in the south of Shihezi city, and the station building is directly opposite to the East 2nd Road, west of Passenger Road, east of East 3rd Road, and north of South 3rd Road, which has good traffic conditions.
The building site is located on the east side of the former Shihezi Railway Station. The site is located in front of the mountain, and the terrain is flat. The main distribution of the Quaternary Holocene alluvial deposits, lithology to powdered soil, pebbles are dominant; the surface layer is generally covered with vegetative fill. The depth of groundwater is more than 20 meters, so the corrosive effect of groundwater on the foundation of the building is not considered.
The specific location of water source and power introduction point is determined on site.
5. Main regulations and documents of the Ministry of Railways
5.1 Main regulations
Serial No. Name
1 Work Safety Law
2 Regulations on Work Safety of Construction Projects
3 Fire Protection Law of the People's Republic of China*** and the State of China
4 Regulations on the Management of Environmental Protection of Construction Projects
5 Law on Environmental Protection of the People's Republic of China*** and the State of China
4 Regulations on the Management of Environmental Protection of Construction Projects
5 Law on Environmental Protection of the People's Republic of China*** and the State of China
. and State Environmental Protection Law6 Law of the People's Republic of China on the Prevention and Control of Air Pollution
7 Law of the People's Republic of China on the Prevention and Control of Water Pollution
8 Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste
9 Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution
10 Rules for the Implementation of the Law of the People's Republic of China on the Prevention and Control of Water Pollution
10 Implementing Rules for the Law of the People's Republic of China on the Prevention and Implementing Rules of the Law on Prevention and Control of Water Pollution
11 Interim Measures for Reporting Accidents of Environmental Pollution and Damage
12 Implementing Rules of the Law on Prevention and Control of Air Pollution of the People's Republic of China*** and of the People's Republic of China
13 Regulations on the Safe Management of Chemically Hazardous Substances (State Council)
14 Law on Soil and Water Conservation of the People's Republic of China*** and of the People's Republic of China
15 Regulations on the Implementation of the Law on Regulations on the Implementation of the Law on Soil and Water Conservation
16 Law of the People's Republic of China on the Protection of Cultural Relics
5.2 Documents of the Ministry of Railways
Serial No. Name No.
1 Measures for the Safety Management of Railway Construction on Business Lines Railway Office 〔2008〕 No. 190
2 Circular of the Implementing Rules for the Safety Management of Construction on the Business Lines of the Urumqi Railway Bureau Urumqi Railway Bureau Urumqi Railway Administration [ 2009〕 No. 355
2 Notice of the Safety Management of Construction on Business Lines 2009] No. 355
3 Guidance on actively advocating the management mode of the frame team Railway Construction [2008] No. 51
4 On the rigid measures to strongly implement the management mode of the frame team notice Urumqi Railway Construction 〔2009〕 No. 83
5 Provisions on the management of the quality of railroad construction projects Ministry of Railways Decree No. 25
6 Provisions on the environmental protection of the railroad
7 Provisions on the environmental protection of the railroad
9 Provisions on the environmental protection of the railroad
10 Environmental Protection Regulations
7 Railway House Building Construction Technology and Safety Rules TBJ410-87
8 Interim Standard for Construction Quality Acceptance of Passenger Dedicated Line Railway Electric Traction Power Supply Project Railway Construction [2006] No. 167
9 Large-scale railroad passenger station guiding the preparation of construction design directory Jian Passenger Station No. 2009257
6. 95
Code for Seismic Design of Buildings GB50011-2001
Technical Specification for Waterproofing of Underground Works GB50108-2001
Specification for the Control of Indoor Environmental Pollution in Civil Engineering Buildings GB50325-2001
Code for the Design of Building Ground Foundation GB50007-2002
Code of Practice for the Quality Acceptance of Construction of Building Foundation Works GB50202-2002
Code of Practice for the Quality Acceptance of Construction of Masonry Works GB50203-2002
Code of Practice for the Quality Acceptance of Concrete Structural Works GB50204-2002
National Code of Practice for the Quality Acceptance of Construction of Steel Structural Works GB50205-2001
p> Specification for Quality Acceptance of Roofing Works GB50207-2002
Technical Specification for Roofing Works GB50345-2005
Specification for Quality Acceptance of Building Ground Works GB50207-2002
Specification for Quality Acceptance of Construction of Building Water Supply, Drainage and Heating Works GB50242-2002
Ventilation and 1111 Air-conditioning Engineering Construction Quality Acceptance Specification GB50243-2002
Specification for Construction Project Management GB/T50326-2001
Specification for Archiving and Organization of Construction Project Documents GB/T50328-2001
Code of Practice for the Quality Acceptance of Construction of Building Electrical Engineering GB50303-2002
p> Steel weld manual ultrasonic flaw detection methods and flaw results classification GB11345-89
The basic form and size of the bevel of manual electric arc welding and gas-shielded welding GB985-88
High-strength bolts GB1228
Carbon wires and fluxes for submerged-arc welding GB/T5293-99
Welding wires for gas shielded welding Welding Wire GB/T8110
Carbon Structural Steel GB700-88
Steel Surface Corrosion Grade and Rust Reduction before Coating GB8923
Specification for Quality Acceptance of Elevator Construction GB50310-2002
Code of Practice for the Construction and Acceptance of Fire Fighting Communication Command System GB50401-2007
Technical Specification for the Application of Concrete Admixtures GB50119-2003
Specification for the Quality Acceptance of Underground Waterproofing Projects GB50208-2002
Technical Specification for Security Engineering GB50348-2004
Specification for the Design of Lightning Protection for Buildings GB50057-2005
Specification for the Calculation of Floor Area of Building Projects Specification GB/T50353-2005
Specification for the Construction and Acceptance of Automatic Fire Alarm Systems GB50166-2007
Specification for the Construction and Acceptance of Cable Lines for Electrical Installation Engineering GB50168-92
Specification for the Construction and Acceptance of Grounding Devices for Electrical Installation Engineering GB50169-2006
Specification for Quality Acceptance of Intelligent Building Engineering GB50210-2001
Specification for Quality Acceptance of Building Decoration and Decoration Engineering GB50210-2001
Code of Practice for Construction and Acceptance of Rotating Motors for Electrical Installation Engineering GB50170-92
Code of Practice for Construction and Acceptance of Panels, Cabinets and Secondary Wiring for Electrical Installation Engineering GB50171-92
Electrical installation of storage battery construction and acceptance specification GB50172-92
Electrical installation of busbar device construction and acceptance specification GBJ149-90
Electrical installation of low-voltage electrical construction and acceptance specification GB50254-96
Cable television Technical Specification for Cable Television System Engineering GB50200-94
Technical Specification for Civilian Closed-Circuit Surveillance System Engineering GB50198-94
Industry Technical Specification for Safe Operation of Construction Work at High Places JGJ 80-91
Deformation Measurement Specification for Construction JGJ/T 8-97
Technical Specification for Piling of Construction JGJ94-94
Specification for the Design of Ratio of Ordinary Concrete JGJ 55-2000
Specification for the Design of Ratio of Masonry Mortar JGJ 98-2000
Technical Specification for Safety in the Use of Construction Machinery JGJ 33-2001
Technical Specification for Safety of Fastened Steel Pipe Scaffolding for Construction JGJ 130-2001
Technical Specification for Combined Structure of Mould Steel and Concrete JGJ/T 8-97
Technical Specification for Construction Pile Foundation JGJ94-94
Technical Specification for Foundation Treatment in Construction JGJ 79-2002
Technical Specification for Welding of Steel Structures in Construction JGJ 81-2002
Technical Specification for Construction and Acceptance of Building Coating and Finishing Works JGJ/T 29-2003
Technical Specification for Glass Curtain Wall Project JGJ 102-2003
General Technical Specification for Mechanical Connection of Reinforcing Steel JGJ 107-2003
Technical Specification for Application of Glass in Construction JGJ 113-2003
Technical Specification for Welding and Acceptance of Reinforcing Steel JGJ 18-2003
Technical Specification for Welding of Steel Structure in Construction JGJ 81-2002
Technical Specification for Ventilation Ducts JGJ/T 29-2003
Technical Specification for Ventilation Ducts JGJ141-2004
Technical Specification for the Application of Fireproof Coating to Steel Structures CECS24∶90
Specification for the Selection, Installation and Acceptance of Low-voltage Bus Bars CECS170∶2004
Technical Specification for the Construction of Steel-Plastic Composite Pipes and Pipes for Water Supply in Buildings CECS125-2001
Local Relevant Regulations of Xinjiang Autonomous Region
6.2 Main Standards
Category Name No.
National Compulsory Provisions of Engineering Construction Standards (House Building Section)
Unified Standard for House Building Drawing GB50001-2001
Technical Standard for Building Structure Inspection GB50344-2004
Building Lighting Design Standard GB50034-2004
Standard for Concrete Strength Inspection and Evaluation GBJ 107-87
Standard for Geotechnical Test Methods GB/T50123-99
Omit 。。。。
Category Name No.
National Concrete Structure Construction Drawing Plane Overall Representation Drawing Rules and Detailed Drawing 03G101-1, 03G101-2, 04G101-3
Frame Structure Filled with Small-sized Cavity Masonry Walls Structure 02SG614
Frame Structure Filled with Small-sized Cavity Masonry Walls Structure 02J102-2
Depth of drawing and representation of steel structure design 03G102
Detailed drawing of seismic construction of buildings 03G329-1
Deformation joints (I) (II) (III) 04CJ01-(1,2,3)
Fire alarm and fire control 96SX501
Staircases Building construction 99SJ403
Outdoor water supply pipe accessory structures 05S502
National general water supply and drainage standard atlas S1, S2, S3
Local Xinjiang region standard atlas
7. Overall construction organization and design of the whole line
Chapter II. Project Overview
1. Brief description of the project
1.1 Brief description of the hub and station
Shihezi station is the passenger intermediate station of the new second line from Wuxi-Jinghe, Shihezi station as a key economic strongholds along the line of the railroad passenger station in Shihezi City, bear the railroad passenger business around the city of Shihezi, to improve the structure of the regional road network, and to promote sustained and rapid development of the regional economy has a very important significance.
Shihezi station is located in the south of Shihezi city, the station is facing the East Second Road, west of the Passenger Road, east of the East Third Road, north of the South Third Road, good traffic conditions. Station for the line side of the flat-type medium-sized railroad passenger station (the maximum number of people gathered 1000), the main station is divided into the elevated floor, one or two floors above ground, both sides of the packet rooms, ticket offices, VIP halls and public security, the station building, the total building height of 21.8 meters + elevated floor of 4.95 meters; the total floor area of 10,213 square meters, the station building of 8,598 square meters, 1,615 square meters of elevated floors, the footbridge projected area 774 square meters, a platform canopy projection area of 8577.3 square meters.
1.2 Municipal and subway supporting brief
There is no subway for the time being.
1.3 Project Overview
1.3.1 Construction Brief
No. Project Content
1 Building Function Station and Office Building Canopy
2 Building Area The total building area is 10213 square meters, station building 8598 square meters, elevated floor 1615 square meters, projected area of the footbridge is 774 square meters, projected area of the platform canopy 8577.3 square meters. 8577.3 square meters
3 Building floors Aerial floor + 2 floors above ground, partial mezzanine
4 Building height Aerial floor 4.95m
First floor 8m
Second floor Central waiting hall net height 10m
Ticket hall and VIP hall height 8m
5 Building height 21.8m + aerial floor 4.95m
6 Doors and windows Aluminum alloy doors and windows, wooden doors, fireproof doors
7 Building thermal insulation Roof thermal insulation 150-thick glass wool rolled felt
Exterior thermal insulation 100-thick extruded polystyrene board thermal insulation
8 Anti-
water
Works
Procedure Roof (waterproofing class II) Waterproofing methods Steel mesh roof with waterproofing and breathable membrane
Concrete roof with two waterproofing membranes
The roof is waterproofed with two waterproofing membranes, which are used to protect the roof. p> concrete roof with two layers of EPDM butyl rubber waterproofing membrane combination (1.5 +1.2)
bathroom and other rooms with waterproofing EPDM butyl rubber waterproofing membrane
installation
decoration
installation
repair
installation
decoration
program
program
waterproofing (waterproofing class II)
Repair
Fitting
Decorating
Top
Shed
Top
Shed
Aluminum slatted ceiling Elevated floor: Toilet, lavatory, foyer
First floor: Toilet, lavatory, water dispenser room
Second floor: Waiting lounge, Toilet, lavatory, water dispenser room, Smoking Room
Aluminum ceiling First floor: VIP lounge, lounge in VIP lounge
Latex paint Elevated floor: main engine room, fire monitoring room, communication room, public security duty room, ticket replacement, fire pump room, plumbing equipment room, power distribution room
First floor: inbound bag store, office in bag store, office aisle, office, small parts storage, mezzanine office
Staircase: other station offices Stairwells
Aluminum grille ceiling Overhead: exit passageway, exit concourse
Aluminum drop ceiling 1st floor: ticket hall
Aluminum slats +
Drop ceiling 1st floor: waiting room, station concourse
Perforated acoustic board ceiling 1st floor: ticket room
Mineral wool acoustic board ceiling Mezzanine aisle
Inside
Walls
Faces
Tile walls Toilets, washrooms, foyer, boiler room
Latex-painted walls
(white) Elevated floors: main computer room, fire control room, communication room, public security duty room, ticket replenishment, exit passageway, exit wide hall, fire pump room, plumbing and heating equipment room, switch room
First floor: inbound bag store, offices in bag store, offices in bag store, switch room
Incoming bag store First floor: Inbound baggage storage, office in baggage storage, office aisle, ticket office, office aisle, small parts storage, mezzanine office, mezzanine aisle
Second floor: Smoking room
Staircase: other station office stairwells
Dry-hanging granite wall surface First floor: Ticket hall, waiting room, inbound wide hall, VIP lounge, restroom in the VIP lounge
Second floor: Waiting room
Floor
Floor
Surface
Anti-skid tiles flooring Elevated floor: toilets, washroom, foyer
First floor: other toilets, washroom, water dispenser room
Second floor: toilets, washroom, water dispenser room
Antistatic flooring Floor
Electrostatic prevention flooring Elevated floor: main engine room, fire control room, telecommunication room
First floor: ticketing office, fire control room, communication room
First floor: ticket sales room, fire monitoring room, fire monitoring room, fire monitoring room, communication room
First floor: ticket office
Tiled floor Elevated floor: public security duty room, ticket replenishment
First floor: office in the bag store, office aisle, office, small storage, mezzanine office, mezzanine aisle
Second floor: smoking room
Staircase: stairwell of other station offices
Granite floor Elevated floor: exit passage, exit wide hall
Granite floor Passageway, exit hall
First floor: ticket hall, waiting hall, inbound hall, VIP lounge, lounge in VIP lounge
Second floor: waiting hall
Staircase: staircase in waiting hall
Cemented floor Aerial floor: fire pump room, plumbing and heating equipment room, power distribution room
First floor: inbound baggage storage
Facade Glass curtain wall, Stone curtain wall
1.3.2 Structural profile
No. Item Content
1 Structural form Infrastructure form The station building is independent column foundation; the columns of the wind and rain shelter are mainly independent column foundation, and the ones located between the share paths adopt hand-dug pile foundation
Main structural form The station building: frame structure (some of them are pre-stressing frame beams), with steel mesh framework on the roof;
The wind and rain shelters are mainly independent column foundation, and those located between the share paths adopt manually dug pile foundation. p>
Wind and rain shed: steel pipe concrete columns are used for the columns of the shed, and the roof of the shed is steel truss structure;
Inbound footbridge: steel trusses are used for the main girders, I-beam girders are used for the transverse secondary girders, and box columns are used for the columns, and the steel columns and steel trusses are articulated with each other through rubber bearings;
2 Foundations Foundation Type Natural Foundation
Foundation Holding Layer and Bearing Capacity of Foundation The holding layer is on the round gravel soil layer, and the foundation is connected by the rubber bearing. On the gravel soil layer, the foundation bearing capacity characteristic value fak=320KPa
3 Concrete strength grade Independent foundation, bearing platform, pile foundation C30
Main station house beams, columns, slabs C40
4 Reinforcement steel connection Mechanical connection Straight-threaded mechanical connection is used for reinforcement bars with a diameter of ≥16
Lap connection Lap connection is used for reinforcement bars with a diameter of <16.
5 Seismic-resistant defense Seismic-resistant defense intensity 8 degrees Site soil category Ⅱ class
Structural safety class II Seismic-resistant defense class C
6 Building fire resistance class II
7 Masonry engineering The internal and external walls are made of 250-thick ceramic granule blocks;
The partition wall is made of 100-thick SM high-strength light-weight partition boards.
8 Structural section size (mm) Main foundation and bearing platform 3479×4016, 3000×3000, 5100×5100,
3600×3600, 4400×4400, 3500×3500
Thickness of concrete floor slabs 120, 150
Main sections of frame columns 800×800 1400×1400, 1500×1500
Main cross-section of frame beam 500×800, 300×700, 400×800, 300×900
600×800
1.3.3 Introduction to specialized design
1.3.3.1 Overview of the design of the heating and ventilation and air conditioning project
(1) heating system
Heat source for the original station boiler room converted heat transfer station, heat transfer station is equipped with 125/75 ℃ to 50/40 ℃ a set of heating hot water heat exchanger unit, configure the corresponding water treatment equipment.
The station building waiting room, ticket hall and office heating system using low-temperature hot water floor heating, each room set up a separate circuit, the floor surface temperature of 24 ~ 26 ℃, the heat medium for the 50/40 ℃ low-temperature hot water, supplied by the newly constructed heat exchange station.
The baggage storage and ticket checking area of the house is heated by radiators, the system form is a horizontal series system, the heat medium is 50/40 ℃ low-temperature hot water, supplied by the newly built heat exchanger station.
The overhead houses and air-conditioning rooms are heated by radiators, and the heat medium is 125/75℃ high-temperature hot water, which is supplied by the municipal heat network.
The main entrance and exit of the waiting hall, station wide hall, ticket hall, bag holding hall and VIP room are equipped with electric air curtain RFM1200/1500 to prevent the intrusion of cold wind.
The heating main pipeline adopts the overhead laying method in the ceiling, and the buried pipeline of radiant floor heating adopts the polybutylene floor heating special pipe (PB R509), with heat fusion connection, while the other heating pipelines adopt the common steel pipe, with DN ≤ 32 wire connection and DN ＞ 32 welding; the heating pipelines in the ceiling and the pipeline wells are insulated with composite silicate heat preservation.
The station heating system adopts centralized control system, and heat metering devices are set up at the entrance of different heat sources.
The radiator adopts steel-aluminum composite radiator.
(2) Air-conditioning system
The air-conditioning system of this project adopts evaporative air-conditioning system, which adopts natural cold source to cool and humidify the indoor air through the principle of water evaporation and cooling. In addition to the overhead housing in the station building and the exit ticket area housing, the rest of the rooms are set up evaporative air conditioning system. The system adopts fresh air multi-stage evaporative cooling air treatment unit to treat the outdoor fresh air and send it to each air-conditioning area through the air supply pipeline. The system is equipped with 5 sets of fresh air multi-stage evaporative cooling air handling units, all of which are placed in the first floor equipment mezzanine.
(4) Ventilation System
The ventilation system of the station building has an external wall and windows of the room as far as possible using natural ventilation, natural ventilation can not be satisfied, supplemented by mechanical ventilation. Waiting halls, ticket halls, VIP rooms, offices and other houses use air-conditioning units for air supply and ventilation; power distribution rooms, smoking rooms, closed bathrooms are equipped with mechanical exhaust system; one or two waiting halls and atrium to meet the air-conditioning needs of the use of mechanical exhaust.
The exhaust equipment uses low-noise axial fans and roof fans, which are placed in the ceiling and on the roof of the ventilation area.
Natural smoke exhaust is used in all rooms.
1.3.3.2 Overview of water supply and drainage engineering design
(1) Indoor water supply
The water supply network of the station house is connected to the municipal water supply network, and is supplied to the indoor water supply system through the intelligent water supply pumping station in the equipment room of the overhead floor. The indoor water supply system adopts the downward and upward feeding type, the water supply pipe is arranged in branch shape, the indoor living water supply pipe adopts PP-R water supply pipe with hot-melt connection, and the water supply system is divided into water meters. All bathroom sink spouts, mop sinks and bidets in the station are manually controlled, squatting toilets are controlled by foot flushing valves, urinals are controlled by infrared sensors, and all sanitary equipment is water-saving.
(2) Indoor drainage
Fecal wastewater and domestic wastewater are discharged together in the station, and the combined wastewater is discharged into the municipal drainage network through the outdoor septic tank after treatment. The domestic drainage pipe adopts UPVC plastic drainage pipe with bonding connection.
(3) Boiling water system
There is one electric water boiler in the water boiler room on each floor of the waiting hall to supply boiling water.
(4) fire fighting system
The fire fighting in the station building adopts the fire fighting system combining indoor fire hydrant, sprinkler and fire water cannon. The fire hydrant system, sprinkler system and water cannon system are all temporary high-pressure water supply system, and the water volume and water pressure required by the system are met by the fire pump room and pool. The fire pump room is equipped with microcomputer intelligent control pneumatic fire water supply equipment to ensure that the solenoid valve and the pipeline between the pumps are usually in a full water state, and when there is a fire, the main fire pump will be started. Pipeless gas fire extinguishing device is installed in the information room of the station. Set ammonium phosphate fire extinguishers according to requirements. Configure water-type fire extinguishers according to the serious danger class A fire.
1) Fire hydrant system
Indoor fire hydrant system is arranged in a ring, 500 cubic meters of fire pool is set up on the overhead floor of the station area, and 2 sets of automatic pneumatic fire-fighting water supply equipments are set up in the pumping room, each of which contains 1 set of air-pressure tank, 2 sets of fire pumps (one main and one standby), 2 sets of pressure-regulating pumps (one main and one standby), one electric control cabinet, and 4 sets of outdoor fire-fighting water pump couplings are set up.
2) Automatic sprinkler system
The first floor waiting hall, barrier-free waiting and soft seat waiting area are equipped with sprinkler system. Sprinkler pumps are located in the fire pump room, set up a fire stabilized pressure tank stabilized pressure, outdoor fire pump connector two groups.
3) Fixed fire cannon fire extinguishing system
waiting room set up fire water cannon fire extinguishing system, fire pump room set up fire water cannon automatic pneumatic water supply equipment (fire fixed pressure).
4) Gas fire extinguishing system
The information room in the station building is set up with pipeless heptafluoropropane gas fire extinguishing device, and each room in the protection area is set up with pressure relief port and exhaust system.
5) Smoke prevention, smoke exhaust
The number of atrium smoke exhaust ventilation is designed according to 4 times/h, and 4 sets of W-XW-11 high temperature smoke exhaust axial fans are selected, and the fans are controlled by chain with the fire smoke exhaust valve.
1.3.3.3 Intelligent Building Project
Satellite and cable TV systems, integrated wiring systems, automatic building control systems, information management systems, integrated security systems, station information management systems, passenger guidance display systems, passenger broadcasting systems, ticket sales systems, clock systems, power remote systems, fire alarms and linkage control systems.
1.3.3.4 Power Supply and Distribution System
This building is a medium-sized railroad passenger station.
Based on the load capacity and level of the station house, a new dual power supply 10/0.4kV substation is built on the overhead floor of the station house, with 2×800KVA two transformers. Introduction of two external power supply, high-voltage cable into the way, the substation using high-voltage and low-voltage power conversion and distribution equipment in the same room layout. The power supply is drawn from the 10kV railroad power distribution office in Shihezi original station.
The 10kV high-voltage system adopts single busbar vacuum circuit breaker segmentation operation. By two 10kV power supply each with a transformer, when a power failure or maintenance, automatically close the bus switch, from a 10KV power supply to take all the primary and secondary loads.
0.4kV low-voltage bus adopts single bus circuit breaker segmented operation. Two transformers set up between the bus, when a single transformer failure or maintenance, cut off the third level of load, low-voltage bus self-transfer, by another transformer to ensure that the power supply area of the first and second level of load power.
The primary load is powered by one power supply from each of the two sections of low-voltage bus of the substation, and the equipment is automatically switched at the end; the secondary load is powered by a single-circuit power supply with dual power supplies; and the tertiary load is powered by a single power supply with a single-circuit power supply.
1.3.3.5 Lighting system
Including normal lighting, emergency lighting, evacuation lighting and building landscape lighting.
Normal lighting and emergency lighting are arranged in an integrated manner. The lighting of public **** area adopts double power supply cross-power supply mode to improve the reliability of power supply and control flexibility. In order to make the control and management of electromechanical equipment to achieve the goal of labor-saving, safety, comfort, convenience, etc., set up electromechanical equipment monitoring system, lighting control using intelligent controllers. Waiting halls, ticket halls and station-entry wide halls use gas discharge lamps as the main light source, waterproof and dust-proof ring-tube ceiling lamps are used in toilets and washrooms, and compact fluorescent lamps are used as the main light source in the rest of the places and energy-saving new light sources are adopted as far as possible, electronic ballasts are used for fluorescent lamps and capacitors are used for gas discharge lamps. Lighting fixtures should be coordinated with the form of the building, the color of the interior decoration, the natural lighting and climatic conditions, and matched with the light source used.
1.3.3.6 Lightning protection and grounding system design overview
1. Lightning protection
1) Lightning protection level: the second type of lightning protection building.
2) Measures against direct lightning and lightning wave intrusion.
3) Measures against direct lightning:
a. Adopt lightning net installed on the building as a lightning catcher. Lightning net along the corners of the roof, roof ridge, eaves and cornices and other parts vulnerable to lightning strikes, and in the entire roof composed of no more than 10m * 10m grid, lightning belt installed, using 8mm diameter hot-dip galvanized round steel.
b. Flagpoles, railings, decorations and other permanent metal objects on the roof are reliably connected to the lightning net. Roof discharge pipes, breathing valves, exhaust pipes and other pipe openings above the radius of 5m hemisphere are within the protection of the flashover.
4) the use of buildings around the column diameter should not be less than 10mm rebar as the lead wire.
5) anti-direct lightning grounding and low-voltage system power grounding, weak power system and other grounding *** with the same grounding device.
6) anti-lightning wave intrusion measures:
a. Strong and weak power cables in and out of the building using direct burial laying, at the home end of the cable should be the metal sheath, steel pipe to the grounding device *** with.
b. Overhead and directly buried metal piping in the building in and out of the proximity of the grounding device connected to ***, the connection line using 25 * 4 hot-dip galvanized flat steel.
2. Grounding
1) Low-voltage system grounding type: the use of integrated grounding type.
2) grounding resistance: the building adopts joint grounding, low-voltage system power grounding, transformer protection grounding, lightning protection grounding and weak power system grounding *** with grounding devices, grounding resistance is not greater than 1 ohm.
3) grounding pole: the use of reinforced concrete foundation within the reinforcing steel mesh as a grounding pole.
4) grounding detection point: the building column steel access equipotential linkage, indoor and outdoor a number of reinforced concrete columns from the ground at 0.5m, set up with a clear sign of the concealed detection point.
5) grounding detection point and grounding pole connection: pre-buried in the foundation of the connection conductor, connecting the foundation of the rebar and the detection point, the connection conductor with a diameter of 10mm hot-dip galvanized round steel.
6) steel grounding wire connection: between the grounding wire, grounding wire and the connection between the grounding electrode are welded. In places where welding is not allowed can also be used bolt connection, the connection should be hot-dip galvanized or contact surface tin lining.
7) Indoor grounding terminal box and grounding wire: the total distribution cabinet near the total grounding terminal box (also MEB terminal box), WxHxD: 600x250x90mm, concealed, the bottom edge of 300mm from the ground. joint grounding of the various subsystems using a single point of grounding, the information server room, battery room, fire control room, the installation of open grounding terminal box, WxHxD. 300x200x90mm, loaded with a single point of grounding: 300x200x90mm, mounted 300mm from the ground, connecting the subsystem grounding terminal board and the total grounding terminal board of the special grounding trunk line using BV-25/PC25 concealed. Electrical shaft along the well wall laying grounding trunk, using 40x4 hot-dip galvanized flat steel, each floor are equipped with open grounding terminal board, WxHxD: 260x60x60mm.
8) The building is set up for the total equipotential bonding (MEB), need to be linked to the conductor including low-voltage power supply inlet grounding protection line, artificial grounding electrode, utility metal piping, metal structure of the building, and so on.
9) the building has been connected to the general equipotential connection of various facilities, should be as much as possible in their proximity to each other and then use the wire additional connection, in order to make the potential between them equal or closer, that is, to take the auxiliary equipotential bonding (SEB) measures.
10) MEB terminal board coupling line: and artificial grounding pole, building metal structure and metal doors and windows railing connection with 40x4 hot-dip galvanized flat steel, and utilities metal piping connection with insulated copper wire BV-25/PC25 concealed, and low-voltage inlet grounding line connection with grounding protection line with the same cross-section of the copper core plastic insulated wire through the PVC pipe concealed.
11) SEB and LEB connection line: 25x4 hot-dip galvanized flat steel is used to connect with equipment metal casing, building metal structure and metal door and window railing, and insulated copper wire BV-4/PC20 is used to connect with utility metal pipeline.
12) equipotential bonding line and all kinds of metal piping, sanitary equipment, heaters, metal doors and windows railing, ceiling keel, equipment, metal shell reliable connection.
13) weak power room, fire control room, various equipment room, bathroom to do local equipotential bonding (LEB), need to be linked to the conductor including PE wire, utilities, metal piping, equipment, metal enclosure, building metal structure, and metal doors and windows railing, LEB box concealed.
1.3.3.7 Overview of the design of the fire alarm and linkage control system
The building belongs to the first level of automatic fire alarm protection object, using the control center alarm system, the fire alarm controller is set up in the fire control room, the fire control room is located on the first floor, and there is a direct exit to the outdoors.
The fire control room alarm control equipment consists of fire alarm control mainframe, linkage console, emergency broadcasting equipment, fire intercom telephone equipment and power supply equipment, etc., the fire control room equipment is installed in a 19 "standard cabinet; fire detectors ceiling mounted, and the horizontal clearance of the lamps and lanterns should be greater than 0.2m, and the air supply side of the horizontal clearance should be greater than 1.5m, and the perforated air supply The horizontal clear distance between the roof orifice or strip air supply outlet should be more than 0.5m, the clear distance between the fire detector and the embedded speaker should be more than 0.1m, the clear distance between the fire detector and the automatic sprinkler head should be more than 0.3m, and the distance between the fire detector and the wall or other shelter should be more than 0.5m; the fire hydrant pushbuttons (with built-in fire telephone jacks) are installed on the open door side inside the fire hydrant box, and the mounting height is 1.8m; the fire alarm pushbuttons (with built-in fire telephone jacks) and the Fire alarm button (built-in fire phone jack) and floor monitor are wall-mounted at a height of 1.4m; fire sound and light alarm is wall-mounted at a height of 2.5m; fire broadcasting speaker is wall-mounted in the office at a height of 2.8m, and embedded in the corridor through the ceiling; isolation module of all floors and input module of combustible gas detector are mounted inside the cable wells at a height of 2.5m; input and output modules for fire pump and smoke ventilator are mounted inside the control cabinet of the equipment; Other linkage equipment input and output modules are installed nearby.
Equipment power supply: 220V AC power distribution design see electric power design section; fire alarm control cabinet is equipped with a switching power supply module; output 24V DC power supply for the fire floor display, fire sound and light alarms, input and output modules and other equipment power supply.
The alarm bus adopts RVS-2*1.5/SC15, the 24V system power line and the multi-line linkage line of the fire fighting equipment adopts RVB-2*2.5/SC15, the fire fighting telephone line adopts RVS-2*0.5/SC15, and the fire fighting broadcasting line adopts RVS-2*1.5/SC15, and the cable wells and the suspended ceiling adopt the open-laying and closed-end metal trunking and the steel pipes. In the cable well and ceiling, open and closed metal trunking and steel pipe are used, and fire protection measures are taken, and the rest of the wiring is concealed by steel pipe.
1.3.3.8 Overview of power telecontrol system design
The power telecontrol of the substation of this station is integrated into the power dispatching station of the existing Urumqi Power Supply Section.
Power telecontrol includes: status of high-voltage circuit breaker, current, voltage, power, power factor, reactive power compensation, fault signal, and remote opening and closing of circuit breaker in the substation and distribution office in the station house; status of low-voltage main switch: current, voltage, power, power factor, reactive power compensation, and opening and closing of low-voltage main switch.
1.4 Brief description of the canopy and other works
The projected area of the basic platform canopy is 8577.3 square meters, and the main structure adopts steel pipe truss structure.
The projected area of the footbridge is 774 square meters, and the main structure adopts steel truss structure.
The projected area of the inbound footbridge is 774 square meters.