Huayuan Road 1
1, concrete surface construction shall meet the following requirements:
A. The surface of the surface layer is dense and smooth, and there are no defects such as cracks, peeling, pits and sanding;
B. The surface layer and the next layer shall be firmly combined without hollowing and cracking;
C. The slope of the surface layer shall meet the design requirements, without soaking or water accumulation;
D. When laying, set expansion joints according to the design requirements, which should be perpendicular to the center line and evenly distributed, and there should be no sundries in the joints;
E. the laying of concrete surface course shall be completed at one time. When the construction gap exceeds the allowable time, the joint should be treated;
(6) The artistic floor embossed with colored reinforced materials has clear texture and realistic effect.
2, brick surface construction shall meet the following requirements:
A. The variety, specification, quality, bonding layer, mortar mixture ratio and thickness of brick should meet the design requirements.
B. Before paving, check the specifications, dimensions, appearance quality and color. Should be screened and soaked in water;
C. The combination (bonding) between the surface layer and the next layer shall be firm, without empty drum;
D sand and sandy loam should be used as the bonding layer for paving grass bricks, and the thickness should meet the design requirements. When there is no requirement in the design, it shall not be less than 50 mm. When laying grass bricks in the parking lot, 150 mm ~ 200 mm graded sand shall be used as the base under the bonding layer;
E. The hole where the grass brick is embedded should be filled with soil;
F, fine mortar should be full sealed, mortar joint width should be less than 2 mm; Dry paving application of coarse sand seam, seam width should be less than 3 mm;
G, brick surface should be clean, the pattern is clear, the color is consistent, the seam is straight, the depth is consistent, and the periphery is straight. Plate without cracks, edges and corners;
H, surface corner material size should comply with the design requirements, edges and corners neat and smooth;
I, jointing and caulking should use the same variety, the same strength grade, the same color of cement, and do a good job in maintenance and protection;
J, surface slope should comply with the design requirements, no flooding, no water.
3, stone surface construction design shall meet the following requirements:
A. Before paving the stone surface, the stone should be soaked and dried;
B. The material, specification, quality and strength of stone should meet the design requirements;
C the surface layer shall be firmly combined with the next layer without looseness;
D the sand and gravel surface should be assembled reasonably, and there should be no cross joints. The paving direction and slope, and the gap width between plates should meet the design requirements.
4, granite surface construction shall meet the following requirements:
A. Before laying the granite surface, the plate should be wet;
B the varieties, specifications and materials of the plates used for the granite surface course shall meet the design requirements;
C the combination layer and the surface layer shall be laid in sections at the same time, and the surface layer shall be firmly combined with the next layer without hollowing;
D. The appearance quality of granite surface should meet the design requirements and use requirements, and the surface should be clean, smooth and free from abrasion marks, with clear patterns, consistent colors, uniform joints, straight periphery and correct inlaying, and the plate should be free of cracks, corners and edges;
E. The slope of granite surface shall meet the design requirements, and there shall be no water accumulation and flooding.
5, pebble surface construction shall meet the following requirements
A. Generally, the pebble surface is fixed on the concrete base through the adhesive layer;
B. Pebble inlay shall be laid vertically;
C. When paving, pebbles should be screened;
D the slope, thickness, pattern, particle size and color of the whole pebble surface should meet the design requirements;
E. the thickness and strength of cement mortar should meet the design requirements;
F expansion joints shall be set when the banded pebble pavement is more than 6 linear meters;
G, gravel and base should be firmly combined, and the embedding depth should be greater than 1/2 of the particle size. Stones should not be loose or fall off;
H, pebble surface should be smooth color, no residual mortar, clear pattern, stone particles clean;
1. There is no obvious pothole, uplift and water accumulation on the whole surface of pebble. Smooth and natural connection with adjacent sidewalks and kerbs.
6, wooden pavement surface construction shall meet the following requirements:
A. The surface layer of the wood floor includes logs and wood plastic, and the surface layer can be laid on the foundation bracket or on the base;
B. The wooden pavement surface can be paved with double layers and single layers, and its thickness should meet the design requirements. The strips on the surface of solid wood pavement should be products with commodity inspection certificate, and their product categories, models, inspection rules and technical conditions should meet GB/T,1503;
C. Before laying the wooden pavement surface, the foundation shall be qualified;
D the material, specification and color of the wooden pavement surface should meet the design requirements;
E. the wooden pavement and stow-wood shall be treated with anticorrosion and moth prevention. The moisture content of wood should be less than15%;
F, screws and bolts used to fix the wooden pavement should be treated with anti-corrosion, and installed firmly without looseness. Specifications should meet the requirements of stable surface;
G, the top of the screw and bolt shall not be higher than the surface of the wood pavement;
H, surface laying should be firm without looseness.
7. The kerb (kerb) construction shall meet the following requirements:
The type, specification, quality and elevation control of kerbs shall meet the design requirements;
B there should be a base at the bottom of kerb, and the width, thickness, compactness and elevation of the base should meet the design requirements. Back of kerb;
C lime-soil compaction or concrete shoulder pads should be done here, and the width, thickness, compactness or strength and elevation should meet the design requirements;
D the straight section of kerb should be straight, the natural section should be smooth, and the joint should not have any angle;
E the top surface of kerb shall be smooth, with no obvious staggered teeth and tight joints.
8. The influence of buoyancy should be considered when building the pool, and the stone group should be reasonable and firm;
9, wooden plank road construction shall meet the following requirements:
The foundation of the wooden plank road is divided into abutment and pile foundation. The surface layer can be directly laid on the desktop foundation. Pile foundation should be provided with coupling beams, on which sleepers can be placed or surface layers can be directly laid;
B the foundation of the wooden plank road should have uniform soil quality, and technical treatment should be carried out when the soil quality is uneven. Foundation backfill soil should be compacted by layers, and the density should be above 0.90;
C the depth of the pile tip entering the bearing stratum and the connection between the pile and the capping beam shall meet the requirements of relevant codes;
D. The plates used in the surface layer shall be cured, waterproof and anticorrosive;
E. The color of the surface wood should be natural and smooth, the moisture content should be less than 15%, and the gap between two parallel plates should meet the design requirements;
F. The connection between the surface layer and the sleeper or beam shall be firm without looseness, and the specification of bolts used for fixing the surface layer shall not be less than M 12. After fastening, the height shall not be higher than the board surface.
2. Garden sketch
1, overlapping mountain construction shall meet the following requirements:
A. The main rocks in the Rocky Mountain should be staggered and overlapped with uniform texture; The brake stone of each rockfill shall have no less than 4 stress points and shall not be exposed; The length of the rock in the sinkhole shall not be less than 1.5m, and the thickness shall not be less than 40cm；; The whole huge rock is not tilted; The protruding part of the laterally protruding rock should be less than1/3 of the rock length; 1: 3 cement mortar is poured at the bottom of the outermost peak stone of the mountain;
B. The joints shall meet the design requirements, and there shall be no omissions. If there is no explanation in the design, use 1: 3 cement mortar for jointing, and the color of mortar should be similar to that of stone.
2, seat (stool) installation shall meet the following requirements:
A. The installation method of the seat shall be carried out according to the product installation instructions or design requirements;
B. The seat installation foundation shall meet the design requirements;
C. The quality of the seat shall pass the product inspection;
D. The seat should be installed firmly without looseness;
E. the metal part of the valve seat should be treated with anti-corrosion;
F, seat material, specifications, shape, color, installation position should comply with the design requirements, its ornamental effect should be coordinated with the landscape.
3. Sign installation shall meet the following requirements:
A. The installation of signs shall be carried out according to the product installation instructions or design requirements;
B. The installation foundation with column marks shall meet the design requirements;
C. The mark shall pass the product inspection;
D. The installation of the column should be upright and not inclined, and the surface of the column should be clean and burr-free;
E. The connection between signs and columns, columns and foundations shall be firm without looseness;
F, metal signs and their connectors should be embalmed;
G, sign specifications, colors, installation location, installation height and ornamental effect in harmony with the landscape;
H, the direction of the sign should be accurate.
4, trash can installation shall meet the following requirements:
A. The installation method of garbage bins shall be carried out according to the product installation instructions or design requirements;
B. The installation foundation of the dustbin shall meet the design requirements;
C. The quality of garbage bins shall meet the standards through product inspection;
D. The dustbin shall be installed firmly without looseness;
E. The metal trash can should be rusted;
F, the specification, color, installation location and decorative effect of the trash can are in harmony with the landscape.
5, garden guardrail installation shall meet the following requirements:
A. The connection between railings and between railings and foundation shall be firm and firm;
B. The welding of metal railings shall meet the requirements of relevant specifications;
C. The embedded part of the main pile of the bamboo guardrail shall be treated with anti-corrosion;
D the height, form, pattern and color of the guardrail shall meet the design requirements;
E. the guardrail shall be vertical and smooth as a whole.
6, three-dimensional (flower bed) skeleton installation shall meet the following requirements:
Check the site and space before fixed-point setting-out;
B. Before erection, check the material, specification, quantity and shape of the materials used, and do not splice or substitute them at will;
C modelling should comply with the design requirements;
D should be installed firmly and stably, and its structural bearing capacity should meet the design requirements. The skeleton of a large three-dimensional (flower bed) should have a structural calculation book;
E. Attention should be paid to the installation and laying needs of drip irrigation, sprinkler irrigation, lighting, fountains and other exhibits during construction;
F, the rest of the building materials should be cleaned up in time.
7, flower rack installation shall meet the following requirements:
A. the material and section size of the wooden flower stand should meet the design requirements. The vertical deviation of flower stand column should be less than 5 mm;
B. Outdoor flower racks shall be treated with anti-corrosion treatment, with no obvious defects in appearance.
8, dry fountain installation shall meet the following requirements:
A. The foundation of dry fountain should be compacted, and the compactness should be greater than 0.93;
B trench masonry and reinforced concrete pouring of dry fountains shall meet the requirements of relevant specifications. Waterproof measures should be taken for ditch wall, ditch bottom and collecting well. The bottom of the ditch and the bottom of the ditch should have a slope of 2 ‰ ~ 5 ‰;
C the connection, laying and installation of dry fountain pipes and fittings shall meet the requirements of relevant specifications. Metal pipes should be treated with anticorrosion. The installation of electrical equipment shall meet the requirements of relevant specifications.
9, garden revetment construction shall meet the following requirements:
A. According to different masonry materials, different masonry construction specifications should be adopted for garden revetment. Stone with stone as the main masonry body should be balanced, reasonable and firm to prevent the stone from being displaced by buoyancy supported by water;
B. The back of the revetment shall not be backfilled with cohesive soil, and a drainage blind ditch shall be set as required to connect with the rainwater drainage system;
C. The natural garden revetment with stone as the main material should be laid in zigzag, with uniform texture and the landscape artistic effect meeting the design requirements;
D the artistic treatment of the overflow port of the garden revetment should be consistent with the main style of the revetment.
10, garden cross-flow construction shall meet the following requirements:
A. The construction of water supply and drainage system for garden overlapping water shall meet the requirements of relevant codes and standards; The landscape effect of structures and overlapping water bodies should meet the design requirements;
B graded stones with a thickness greater than 40mm should be laid on the natural laminated waterproofing membrane. The direct impact part of the waterfall should be treated with cushion stones.
1 1, landscape bridge installation shall meet the following requirements:
A. After foundation pit excavation, the foundation pit shall be drilled and inspected by relevant personnel;
B. the surface of the landscape bridge should be treated with anti-skid and drainage. When the slope of the bridge deck is greater than 1: 8, a barrier-free bridge deck shall be set. When the landscape bridge needs steps, the number of steps should not be less than three, the height of steps should not be greater than 100mm, and the width of steps should not be less than 300 mm. 。
3, irrigation system construction shall meet the following requirements:
1, drip irrigation, sprinkler irrigation and infiltration irrigation can be used;
2, the scope of sprinkler irrigation is strictly prohibited to spray to the waterproof layer flashing parts and beyond the planting boundary;
3, pipe clamp, interface should be solid, tight, accurate counterpart clearance;
4, electrical and lighting system
5. Water circulation system
6, rain observation well
1. During foundation pit excavation, the foundation soil shall not be disturbed by overbreak; If the foundation soil is disturbed, remedial measures should be taken according to the relevant provisions of the current Code for Construction and Acceptance of Water Supply and Drainage Pipeline Engineering GB.50268 and the soil quality of the foundation soil. For the rainwater inspection pit with sludge chamber, the depth of sludge chamber should be partially excavated according to the selected specifications. The excavation of foundation pit should be based on the selected specifications, considering the deviation factor of Jing Zuo main line, and the pit wall at the offset end should be flush with the pipe trench;
2. Check the installation sequence of the joint between the Jing Zuo of the well and the pipeline, starting from the upstream section of the connecting pipe and installing in the order of well-pipe-well-pipe, and the disease gradually extends to the downstream branch pipe and main pipe;
3. The construction method of Jing Zuo joint and pipeline connection should be consistent with that of the same type of joint and pipeline connection;
4. It is necessary to reduce the connection between Jing Zuo and inlet and outlet pipes. When reducing joint is adopted, when the inlet pipe diameter is smaller than that of Jing Zuo interface, the pipe top should be butted; When the Jing Zuo discharge pipe interface is larger than the downstream pipe, the pipe bottom should be butted;
5, wellbore inserted into the left static should be vertical. When inserting the shaft, do not knock with a heavy hammer, but use a special fastening tool;
6, backfill must be carried out after the acceptance of drainage pipeline (including pipeline and inspection well), and at the same time with the backfill of pipeline groove;
7. Before backfilling, Jing Zuo and shaft can be fixed with sandbags and steel and wood supports, and the water in the foundation pit and groove can be excluded;
8. Backfill material: Gravel, sand-rich (medium) calcium fly ash with a particle size less than 40mm, medium coarse sand or good soil excavated from the pipe trench can be used as the backfill material of the pipe trench within 0.5m from the pipe top to the foundation surface of the pipe bottom;
9, backfill soil shall not use silt, garbage and frozen soil, etc. , and shall not be entrained with angular hard objects such as stones and bricks;
10, when the local maximum frozen soil depth is greater than or equal to 1.0m, medium and coarse sand should be backfilled in the frozen layer and not less than 100m around the shaft;
1 1, the upper mouth of the sewage inspection well with protective cover seat should also be equipped with an inner cover.
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