Underground waterproofing construction scheme of a large project in Beijing

Uploaded on: August 20, 2019 16:35:05 come from: Water supply and drainage / Water supply and drainage construction design / construction plan

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This document is the underground waterproofing construction scheme document of a large project in Beijing. The document includes: building characteristics: full cast-in-place reinforced concrete frame shear wall structure is adopted for the three underground floors, the underground part is ㎡ (including the civil air defense area of ㎡), and the number of building floors is 20 floors above the ground; 5 floors of partial podium; There are three underground floors.

Underground waterproofing construction scheme of a large project in Beijing - Figure 1

Underground waterproofing construction scheme of a large project in Beijing - Figure 2

Underground waterproofing construction scheme of a large project in Beijing - Figure 3

Underground waterproofing construction scheme of a large project in Beijing - Figure 4

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Construction difficulty 2.3.1 Bottom plate of the competition floor: the core area of the competition hall is the competition floor, and its bottom plate (size: 73m × 61m × 0.6m) is a protruding part. The bottom elevation is 7500mm higher than the wall foundation of the adjacent equipment floor, which adds difficulty to the wall formwork support. 2.3.2 There are many changes in structural dimensions: there is no standard floor, and the floor heights are different, up to 10m; The column section varies from 600mm × 800mm to 4350mm × 1200mm; Wall thickness varies from 200 mm to 800 mm; The beam section includes 400 × 500mm secondary beam and 800 × 1600mm deep beam; Most of the top plates are 200mm thick, and a few are 600mm and 800mm thick. There are so many size types, which brings great inconvenience to template configuration. 2.3.3 Fair faced concrete construction: according to the requirements of the design drawings, some columns and walls are made of fair faced concrete. The concrete is required to have a flat surface, no plastering, no obvious holes, and uniform color after pouring, molding, and formwork removal. This requires that the mold release agent has: easy mold removal (affinity of the mold release agent to the template); The concrete surface shall be free of sanding and air holes (the affinity of release agent to concrete); Do not stain the concrete surface (type and activity of oily components of release agent); Do not stain the rusted formwork (the release agent is acidic and alkaline, and whether there are anti rust components); Good water resistance and heat resistance.

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4. Construction preparation 4.1 Waterproof coiled material must be provided with factory certificate, Beijing permit, test report, anti-counterfeiting mark and material specification. 4.2 Qualification review: the professional waterproof team shall issue the business license, the construction committee certification, the enterprise safety production qualification certificate issued by the labor bureau and the work certificates of various personnel, which shall be reviewed by the project department, Party A and the supervisor. 4.3 After the materials are transported to the site, the appearance inspection shall be carried out first, and the coiled materials shall be free of wrinkles, neat edges and damages; Witness test shall be carried out before use, and the Project Department shall contact with the Supervisor to take samples for inspection under the supervision of the Supervisor according to the specifications. The cementation material test or trial mix report shall be qualified, and the base course shall be clean and dry, and construction can be started only after it is qualified. 4.4 Organize technicians and operation teams to be familiar with construction drawings and design specifications, participate in design disclosure, understand and master the design content, carefully study the current specifications, standards and relevant construction common sense and key points, be aware of them, eliminate blind command and operation, and conduct detailed disclosure in writing before construction. 4.5 Each operation team shall set up a quality inspection team, strictly implement the "three inspection system", report to the Project Department for acceptance after passing the acceptance, and report to the Supervisor for inspection after passing the re acceptance, and implement joint inspection to ensure the quality. 4.6 Prepare the material plan, and reasonably arrange materials, machines and tools, auxiliary materials, etc. to enter the site in time according to the construction progress and scale of the site. 4.7 A layer of 3+3SBS polyester tire waterproof coiled material is used as the waterproof coiled material, and the side wall pipe is used as the waterproof casing. 4.8 Tool preparation: trolley, broom, ruler, tape measure, powder bag, cutter, roller brush, scraper, brush, etc. 4.9 See the corresponding construction scheme for basement pipeline and other water and electricity embedment, and see the specific construction scheme for concrete, reinforcement and other construction methods. 4.10 Check the water content of the leveling layer before the construction of the waterproof layer: the method is to lay 1 square meter of coiled material on the leveling layer in the sun. After 3 to 4 hours, lift it up to check that there is no watermark, and then the waterproof coiled material construction can be carried out.

Topic: Construction Scheme of Beijing School Project Underground waterproofing construction scheme in Beijing School project contract
Waterproof construction of a residential project in Beijing programme
Building 2 # in the north area of the community has a building area of 15829.51 ㎡, with two floors underground and 23 floors above the ground, CFG pile composite foundation, box foundation, and full cast-in-place shear wall structure. The underground waterproof grade is Grade I, and the underground waterproof requirements: the structural foundation floor, exterior wall, and civil air defense roof are C35 concrete, and the impermeability grade is S8. The requirements for waterproof materials in several parts are as follows: Base plate: SBS Ⅲ+Ⅲ modified asphalt waterproof coiled material. Underground wall part: SBS Ⅲ+Ⅳ modified asphalt waterproof coiled material. Roof: waterproof grade II, SBS Ⅲ+Ⅳ plus modified asphalt waterproof coiled material Kitchen and toilet room: 1.5 thick acrylic film waterproof coating.

Topic: Waterproof construction scheme in Beijing Waterproof construction scheme of the project Waterproof project construction scheme
Waterproof construction of a commercial building in Beijing programme
This project is a transitional commercial building project at the exit of * * * Station of Beijing Metro Line * *, which is located next to the exit of Metro Line * * Station at the intersection of * * Street and * * North Street in Dongcheng District. It is a commercial building. One floor underground and two floors above the ground. The total construction area is 11406.61m2, including 9260.98 m2 of ground construction area and 2145.63 m2 of underground construction area. The design section is three pieces of land. Areas C1 and C2 are located in plot 3, D1 is located in plot 2, and D2 is located in plot 1. The foundation adopts beam slab raft foundation. Waterproof level: basement level I, roof level II.

Topic: Formwork construction scheme of Beijing commercial building Winter construction scheme of commercial building Construction Scheme for Commercial Building Installation
Waterproof construction of a scientific research complex building in Beijing programme
This document is the waterproof construction scheme document of a scientific research complex building project in Beijing. The document includes: this project is the * * Scientific Research Office Building of * * Technology Group, located in * * Township, * * District, on the west side of * * Road, adjacent to the original units in the current reserved plot in the north, and the second phase residence of * * New Village in the west and south. With a total area of 12500 square meters, it is a comprehensive building with scientific research and office as its main function.

Topic: Waterproof construction scheme of complex building Waterproof construction scheme in Beijing Sample construction scheme of a complex building
Waterproof construction of a residential building in Beijing programme _Word
1.1 * * Design drawings of 102 # building in residential area 1.2 * * Construction organization design of 102 # building in residential area 1.3 General atlas of building structure (88J6) 1.4 Recommended practices for basement waterproofing in Beijing (Beijing 95TJ3) 1.5 Technical code for waterproofing of underground works (GB50108-2001) 1.6 Code for quality acceptance of underground waterproofing works (GB50208-2002)

Topic: Waterproof construction scheme of residential building Waterproof construction scheme in Beijing Construction Scheme of Beijing Housing Project
Safety management of a large underground garage project in Beijing programme
The project will adhere to the policy of "safety first, prevention first", strictly implement the relevant regulations issued by the State and Beijing Municipal Commission of Construction, earnestly implement the rules and regulations related to safety production, strengthen the inspection of safety production, and at the same time, through careful planning, careful organization, rigorous planning, strict management and the best combination of project department personnel, Formulate targeted and operable construction organization design, various construction schemes, safety technology assurance measures and various safety management systems, so that all sub divisional and sub divisional processes throughout the construction process are in an organized and controlled safety state, so as to standardize the management work, and finally achieve the safety management objectives of the project.

Topic: Construction Scheme of Beijing Underground Garage Project Large pipeline construction scheme Special construction scheme for large pipelines
Basement decoration construction of a university in Beijing programme
The basement decoration construction scheme of a university in Beijing is rich and detailed, and can be downloaded for reference and study by netizens.

Topic: Construction organization of a university teaching building Waterproof construction scheme for basement in Beijing Concrete construction scheme for basement in Beijing
External thermal insulation construction of a large residential area project in Beijing programme
1、 Preparation basis 1. Building construction drawings. 2. Code for Thermal Design of Civil Buildings GB50176 3. Standard for Energy Efficiency Design of Civil Buildings JG126 4. Technical Specification for Construction of External Thermal Insulation of External Wall (polystyrene board glass fiber gridding cloth polymer mortar), No.: DBJ ／ T01-38-2002 5. Standard for Quality Inspection of Polymer Mortar for External Insulation of External Walls, No. DBJ01-63-2002 6. General atlas of building construction 88J2-9 Wall body external insulation energy saving 65% 7. Molded ethylene foam for thermal insulation GB/T10801.1-2002 2、 Project overview The project is divided into two areas, A and B, which are composed of five slab buildings, with a total construction area of 90325.92m2, an underground area of 22189m2, and an aboveground area of 70812m2. Area A mainly includes: 1 # - 3 # multi-storey residential buildings on the ground. Block B mainly includes No. 4 and No. 5 multi-storey residential buildings. The design service life of the project structure is 50 years; Fire resistance rating of building: Grade I; Seismic fortification category: Class C; Seismic fortification intensity: 8 degrees. The underground wall works of the project: the external wall is reinforced concrete wall, the impermeability grade is S6, and ceramsite concrete hollow block filled wall. Above ground part: reinforced concrete wall, ceramsite concrete hollow block filled wall. The external insulation of this project adopts polymer mortar to paste extruded polystyrene board 70 thick for the north wall, and the rest is 50 thick. 45 thick rigid foam polyurethane insulation is adopted for the bottom of the board in the local overhanging room. The roof insulation adopts 100 thick extruded polystyrene board.

Topic: Construction Scheme of Beijing External Thermal Insulation Construction scheme of external thermal insulation extruded board Construction scheme of external thermal insulation stone like paint
Construction of steel truss formwork floor of a large project in Beijing programme
The steel bar truss formwork is a composite formwork that processes the steel bars in the floor slab into steel bar trusses in the factory and connects the steel bar trusses with the bottom formwork. In the construction stage, it can bear the dead weight of concrete and construction load. In the use phase, the steel truss and concrete work together to bear the service load. The steel bar truss formwork reduces the on-site steel bar binding work by about 70%. The spacing between the upper and lower layers of steel bars and the thickness of concrete cover can be guaranteed, and the steel bars are arranged evenly. On the construction site, the steel truss formwork can be directly laid on the steel beam, and then simple reinforcement works can be carried out to pour concrete, which improves the floor construction efficiency. The truss stress mode is reasonable, which can provide greater stiffness of the floor support plate, and can greatly reduce or eliminate the need for temporary support for construction. The bottom formwork is not subject to force during the use stage, so fire prevention and corrosion prevention are not required to be considered. When the concrete is poured to form the floor slab, it has the advantages of large overall rigidity and good seismic performance of the cast-in-place slab. Overview of steel truss formwork floor and steel truss formwork materials

Topic: Method Statement for Steel Truss Formwork Steel bar truss floor support plate Beijing Floor formwork construction scheme