Part I: Management report of south slope protection project of flood control field I. General situation of the project.
(1) Project Name: Masonry Protection Project on South Slope of Flood Control Yard
(2) Project location: North of Chengxi Village, the old name of Dawenhe.
(three) the project layout, scale, main construction contents and technical and economic indicators.
The south slope of flood control yard is protected by mortar masonry, and the main content is mortar masonry retaining wall, which is 245 meters long. 1 m, thickness 0. 45 meters high, 1. 7 meters. Trench excavation specification is 245. 1*0。 8* 1。 7=333。 34 cubic meters. (Because of the steel wire mesh on the south side, in order to increase the working space, the foundation was excavated by 30cm. )
The main construction projects and corresponding main quantities in my contract section are: 1, and earthwork excavation is 245. 1*0。 8* 1。 7=333。 34 cubic meters
2. Mortar block stone (excluding block stone cost): 245. 1* 1。 70*0。 45= 187。 5 m3, earthwork backfilling: 333. 34— 187。 5= 145。 84 cubic meters
Second, the contract signing
On April 2012 15, Ningyang Dawenhe Comprehensive Development and Construction Co., Ltd. signed a contract agreement with the owner Ningyang River Management Bureau for the south slope of flood control yard, with the contract price of earthwork excavation and backfilling. 86 yuan /m3, rubble 182 yuan /m3. The commencement date of the contract is April 20 12/5/kloc-0, and the completion date of the contract is May 20 12/0/day.
Third, the construction schedule management
(1) General layout of construction
1, layout principle
(1) Follow the principle of adapting measures to local conditions and time;
(2) follow the principle of being beneficial to production and meeting the requirements of the main project construction progress, quality and safety objectives;
(3) Follow the principles of convenient living, environmental protection, fire prevention, sanitation, convenient drainage, rapidity and safety;
(4) Consider the combination of temporary works and permanent works.
(5) The overall layout of the construction shall meet the needs of the peak period of the main project construction, and the preliminary construction, peak period construction and finishing work shall be planned as a whole, and gradually put in place to avoid unnecessary repetition and achieve the purpose of economy and rationality.
2, the overall planning of the construction area
According to the overall schedule, in line with the principle of rational use of space and full use of time, we strive to make the allocation of resources reasonable. Combined with the actual situation of field investigation, the general layout of construction is carried out. The construction area of the whole project is wide, with villages all over the construction area, criss-crossing roads and convenient arrangement of production and living facilities. The project is located near the construction site, with convenient transportation. It can grasp the site situation in time, strengthen site construction guidance, and unify management and construction. Each construction team lives near the construction site, which is equipped with living office area, mechanical equipment parking lot, warehouse, etc. So as to facilitate construction.
3. On-site transportation, communication, water supply and power supply
The project is connected by expressways, and the traffic is very convenient, which fully meets the construction needs. Construction communication adopts wireless communication means, and wireless walkie-talkies are used between construction technicians and quality inspectors in the field, so that internal and external communication is fast and smooth. In addition, after consultation with the local telecommunications department, the project manager intends to set up 1 external fixed telephone, and the project manager and the main person in charge of the ZuoYeDui are equipped with mobile phones to ensure that the project manager and the person in charge of the ZuoYeDui can contact the construction unit in time and communicate conveniently. Construction electricity should be connected to the nearest village. The construction area is close to Dawen River, and the construction water comes from Dawen River, and the domestic water is transported from Gangcheng West Village.
(2) the total construction schedule
This project is scheduled to start on April +05, 2065438 and be completed on May +02, 2065438.
(3) Main quantities completed
Fourth, the main construction methods
Mortar for masonry is stirred by mortar mixer and laid by artificial mortar solidification method. Masonry length should be staggered, the upper and lower layers should be staggered, and the internal and external joints should overlap. Masonry joints should be horizontal and vertical, and the thickness of each layer should be equal. Masonry, first according to the design requirements for segmentation. The width, verticality and filler of settlement joint must meet the design requirements. Immediately after the completion of the first masonry, clean the masonry surface, remove the mortar between joints, tick off the seam to a depth of 2cm, and then tick off the seam with 1: 1 cement mortar.
The structural dimensions of masonry must meet the design requirements, and the masonry after construction should be watered and maintained in time. The stone used for mortar block stone must be hard, fresh and complete, without weathering, peeling and cracks. Before laying, impurities such as dirt and scale on the stone surface should be removed. Its natural density, water resistance, frost resistance, compressive strength and other physical and mechanical indicators should comply with the provisions of the construction details. The stone on the masonry surface must have a flat surface, which can be used as the masonry surface. Block stones with a weight less than 25kg can be used for joint filling, but their dosage should not exceed 10% of the weight of masonry.
Mortar should meet the strength grade and workability requirements of construction details, and have good water retention performance. In order to ensure uniform mixing of mortar, a mixer is used to mix mortar and the mixing speed is controlled. Primary mixed materials should be used up before solidification. The mixture ratio of mortar shall be determined through tests and approved by the supervision engineer. The batching must be carried out in strict accordance with the batching list, and the weighing deviation: the cement, water and admixture solution shall not exceed 2%; Sand shall not exceed 3%. After the feeding, the stirring time shall not be less than 2 minutes. Make the mortar have a good
Part II: Waterway Project Construction Management Report I. General situation of the project.
1, project introduction
Name of construction project, project legal person and supervision unit:
(1) Name of construction project: Qijiaping Hydropower Station in Taohe, Gansu Province
(2) Project legal person: Gansu Hongye Taohe Hydropower Development Co., Ltd.
(3) Supervision unit: Engineering Supervision Department of Qijiaping Hydropower Station of Gansu Longtai Water Conservancy Project Construction Supervision Co., Ltd.
(4) Designer: Lanzhou Ming Jiang Water Resources and Hydropower Engineering Design Consulting Co., Ltd.
(5) Construction unit: Qijiaping Hydropower Project Department of Northwest Water Conservancy and Hydropower Engineering Co., Ltd.
Qijiaping Hydropower Station is located in Lintao County of Dingxi City and Guanghe County of Linxia City. It is a low dam diversion power station with a total installed capacity of 16. 5MW(3×5 .5MW), the power station project consists of hub, power channel, tunnel, power plant and factory area. The engineering grade is Grade IV, and the engineering scale is relatively small (1). Major buildings such as hubs, water diversion systems and workshops are Grade 4, while minor and temporary buildings are Grade 5.
The total length of power channel is 1657. 7m, the section type is Ⅰ and Ⅱ trapezoidal open channel, and the contract content of this bid section is Ⅰ open channel (0+ 120. 73—0+506。 44), Ⅱ open channel (0+904. 06—2+ 176。 05) and 1 #, 2 # two river-crossing traffic bridges, in which the bottom width of Class I open channel is 4. 200m, slope coefficient 1: 1. 5. Longitudinal slope 1/2000, and roughness coefficient n=0. 0 15, and the designed diversion flow is 234. 9m3/s, with a design water depth of 5. 73m, and the canal depth is 6. 5m, flow 3. 1 m/s. The channel length is 378. 98m, C20 concrete protection, geotextile with one cloth and one membrane for seepage control. Class II open channel is 127 1. 99 million. The bottom width is 7. 6m, slope coefficient 1: 0. 5. Longitudinal slope 1/2000, and roughness coefficient n=0. 0 15, shunt flow 234. 9m3/s, and the design water depth is 6. 66m, with a canal depth of 8. 5m, flow 3. 26 m/s, protected by cast-in-place C20 concrete. The total length of the channel is 1657. 7m, every 6m set a telescopic deformation joint, 4. 1m is provided with settlement joints. Considering the needs of channel maintenance and traffic, the width of the top of the right channel is 3. 5m, also used as a construction road. Zuo Di top width 1. 0 meters. There are two traffic bridges, three steel temporary bridges and two flood discharge aqueducts along the canal.
The contents of this power channel project mainly include:
1) trapezoidal open channel: Class I open channel is 378 long. The 98mⅱ Class II open channel is 127 1. 99m, of which box culvert is 70m.
2) Canal system architecture: two traffic bridges; Two flood discharge ditches; Four barrels.
3) Complete all temporary works required for the main project.
The contract duration of this project is 14 months, and the contract warranty period is 12 months.
Our company won the bid for the first and second sections of the power channel project of Qijiaping Hydropower Station (contract number is QJPZ02—SG02). This project was opened in June 5438+February 65438+July 2008, and a bid-winning notice was issued. Our company signed the construction contract on June 65438+10/October 65438+August 2009. On June 5438+1October 2009, the design department conducted technical disclosure, and on February 65438+1October 2009, the supervisor officially issued a notice to start construction. According to the construction requirements, the equipment and personnel of our unit arrived at the construction site on June 65438+February 1 day, 2008, and the main project was completely completed on August 3 1 day, 2008. On 20th11March18th, the passage was accepted, and all personnel and equipment were evacuated. The project lasted 765 days and the actual construction date was 545 days. * * * The mobilization equipment includes: 2 excavators, dump trucks 1 set, shotcrete machines 1 set and 5 steel formwork trolleys, in which the waterway length of the main project is 1.657. 7 meters, channel slope protection completed 5 12 meters, 3 buckets completed. * * * The average number of construction workers is 1 14. The construction is safe and accident-free, and the project quality is qualified.
2, project bidding
2。 1 project bidding process
According to the requirements of "People's Republic of China (PRC) Bidding Law" and "National Water Conservancy Capital Construction Law", Gansu Hongye Taohe Hydropower Development Co., Ltd. adopted the public bidding method. After passing the qualification examination, the bid was opened from September 4, 2009 to September 6, 2009/kloc-0, and the judges demonstrated. Our unit Northwest Water Conservancy and Hydropower Engineering Co., Ltd. won the bid.
Our company signed a construction contract agreement in Gansu Hongye Taohe Hydropower Development Co., Ltd. on June 5438+10/October 65438+August 2009. The contract amount is one thousand Wu Bai seven hundred fifteen thousand three hundred and fifty-six yuan and fifty-six cents.
Chapter III: Feasibility Study Report of Bank Protection Construction Project Chapter I? Total? discuss
1。 1 project overview
1。 1。 1 project name
Protection project of river embankment masonry with mortar
1。 1。 2 Project construction unit
1。 1。 3 Project construction site
1。 2 the basis of project preparation
1。 2。 1 compilation method of feasibility study report of water conservancy construction project;
1。 2。 2 Opinions on Strengthening Rural Infrastructure Construction and Promoting the Construction of a New Socialist Countryside issued by the National Development and Reform Commission;
1。 2。 3. Relevant policies of the state to develop the "three rural" economy and build a new countryside;
1。 2。 4. the State Council's Opinions on Improving the Support Policies for Large and Medium-sized Reservoir Resettlement;
1。 2。 Heilongjiang province's implementation opinions on solving the resettlement difficulties of small reservoirs;
1。 2。 6 General Code for Design of Dike Engineering JT021-89;
1。 2。 7. Local hydrometeorological data;
1。 2。 Other materials provided by the construction unit.
1。 3 scope of report preparation
The research scope of the feasibility study report of this project includes:
1, background and necessity of project construction.
2. Socio-economic forecast of this area.
3. Construction standards and project scale.
4. Construction conditions.
5, construction project environmental assessment analysis.
6. Investment estimation and financing.
7. Construction arrangement, bidding scheme and implementation scheme.
8, project construction guarantee measures
9. National economic evaluation.
10, problems and suggestions.
1。 4 content and scale of project construction
This project is a mortar masonry protection project for Xiaotaihe River embankment. The slope protection along the line is 2600 meters long, with a slope of 45 degrees and a slope length of 4 meters.
1。 5 Project investment estimation
The total investment of the project is estimated to be 600,000 yuan, of which 600,000 yuan is applied for the provincial resettlement support fund.
Chapter II Project Background and Necessity
2。 1 project construction background
The hilly area of XX city is large, which is seriously harmful. According to the survey, there are 325 erosion gullies in 1965, and about 200,000 mu of cultivated land is affected. By 2000, it had developed to 1382, and the erosion gully area reached 700,000 mu. These gullies make the land fragmented, causing inconvenience in farming management, affecting farmers' production and life, and leading to poverty of farmers in this area. Because various control measures are not matched, and the confluence area is large, once a rainstorm occurs, the rainwater is concentrated and the harm is serious.
Qinghe Reservoir is located in the south of Bamiantong Town, 8 meters away from the town government. Five kilometers away, the landform of the reservoir area is two mountains and one ditch. Its main function is to ensure flood control in Bamiantong Town and irrigation and tourism of thousands of acres of farmland in Qinghe River Basin. 1958, Daxing Water Conservancy Project during the Great Leap Forward. Many small reservoirs have been built in Bamiantong. Due to the ideological influence and technical constraints of the left, some are half-baked projects, and some have reservoirs without water. Finally, only Qinghe Reservoir is eligible. Qinghe Reservoir is a small reservoir, which was built in 1958 and 1960. Located in the former site of Qinghe Village (Qing Teahouse Natural Village), the rainwater collection area is 32 square kilometers. The designed total storage capacity is 265,438+800,000 cubic meters, and the designed irrigation area is 3,900 mu.
Qinghe reservoir area is mainly built on the site of Qinghe Laotun (Qingtehouse Natural Village). According to historical records, this village was settled as early as 1885, and there were 92 households in this village in 1936. During the Puppet Manchuria, the three villages merged into Qinghe Village. At the beginning of the reservoir construction, due to the construction of Bamiantong town and land reclamation, the number of residents in this village increased from 179 to 1000.
Due to historical and chronological reasons, the specific written materials are unknown. According to relevant records, in the resettlement work, Bamiantong Town Government resettled the immigrants from Qinghe Village (Xintun), Xincheng Village, Taihe Village, Zhongshan Village and Siping Village. In principle, it is stipulated that the immigrants received by each village should be treated equally with the villagers in the village, housing and cultivated land should be specifically solved by the receiving village, and the town government should provide part of the resettlement expenses. Due to the imperfection and irrationality of the initial immigration work, the resettlement and treatment of immigrants appeared later problems. Although the town government tried its best to solve it, due to the historical formation, the relevant written materials were not elegant, which made it difficult to deal with related problems and caused various contradictions between immigrants and villagers, collective resources and immigrants, and the first generation of immigrants and the second generation. Therefore, increasing the support for immigrants, narrowing and reconciling the gap between immigrants and villagers, and eliminating unstable factors are the inevitable requirements for immigrants to integrate into the construction of new socialist countryside, promote the coordinated development of regional economy and build a harmonious society.
The Fifth Plenary Session of the 16th CPC Central Committee proposed that the construction of a new socialist countryside should be solidly and steadily promoted in accordance with the requirements of production development, affluent life, civilized rural customs, clean village appearance and democratic management. The document Zhong Fa [2006] 1 and the "Eleventh Five-Year Plan" outline have made further arrangements for the new rural construction at present and in the future. At present, the whole country has formed an upsurge of caring, supporting and participating in the construction of new countryside, and some areas have also summed up some successful practices and experiences.
Rural public facilities are the material basis for rural economic and social development and the improvement of farmers' production and life, and also the important content of building a new socialist countryside. At present, China's rural infrastructure is weak, traffic conditions are backward, and there is a huge gap compared with cities. Only by grasping the weakest and most critical link of rural infrastructure can we provide a solid material foundation for accelerating the development of rural productive forces and ensure the construction of a new socialist countryside.
Construction progressed steadily. Rural infrastructure has a wide range of external effects, belonging to the category of public goods and quasi-public goods, and many of them are things that ordinary people need to solve but cannot solve themselves. Therefore, it is the unshirkable responsibility of governments at all levels to strengthen the construction of rural basic public welfare facilities. In the fourth quarter of 2008, the state added 654.38 billion yuan of central investment, of which 34 billion yuan was used to speed up rural livelihood projects and infrastructure construction, accounting for about one third of the total investment. In 2009, in order to expand domestic demand, the state will also increase investment in rural infrastructure to promote rapid economic development.
The construction of new socialist countryside is mainly to solve the problems of people's livelihood in rural areas and problems that farmers can't solve by themselves. The construction site of this project is the centralized resettlement area of Qinghe Reservoir, with blocked traffic and backward economy, and Xiaotaihe runs through the whole territory. Due to the serious soil erosion in the upper reaches, villagers along the river will suffer certain economic and property losses every year in rainy season, and the lives of people and animals are even more threatened in rainy years. In recent years, although there has been governance, due to limited investment, the effect is minimal. The construction of this project can completely eradicate the hidden dangers brought by Xiaotaihe to Qinghe Village residential area.
According to the spirit of the State Council's Opinions on Perfecting the Support Policies for Large and Medium-sized Reservoir Resettlement (Guo Fa [2006]17) and Heilongjiang Province's Implementation Opinions on Solving the Difficulties of Small Reservoir Resettlement (Heifa to Resettlement [2008]1777), in order to promote the economic development of Qinghe Reservoir Area and the support work for reservoir resettlement in the later period, and realize the coordinated development of reservoir area and resettlement,
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