(1) Project Introduction
This project is a star-rated hotel, guesthouse and comprehensive high-rise building. The total construction area is 6.5438+0.38 million square meters, of which the podium is 55,042 square meters; The tower covers an area of 58,546 square meters; The underground area is 24418m2. * * * Building has 36 floors, including 8 podium floors, each floor is 7863 square meters; 3 floors underground, each floor is 8 137 square meters; This tower has 24 floors, each floor is 2458 square meters.
The main civil structure of this project has been completed, and the total construction period of the installation project is expected to be 400 days. The specific commencement and completion date has not yet been determined.
(II) Main work contents
Because the main structure of civil engineering has been completed, there is no reserved embedded workload. The main installation contents are: water supply and drainage, electricity, ventilation and air conditioning. This scheme mainly considers room water supply and drainage, strong and weak electricity; Do not consider dismantling old indoor pipes and equipment.
1, water supply and drainage section
This project mainly includes domestic water supply system, drainage system, waste water system, rainwater system, fire hydrant system, self-spraying system, hot water and its circulation system and equipment.
1. 1 domestic water supply system:
1. 1. 1 There are three kinds of pipes for indoor water supply pipes: DN≥ 100 adopts thickened welded steel pipes, which are connected by welding; DN≤80, connected by galvanized steel pipe thread; In the water meter, aluminum-plastic pipe is used for threaded connection. The domestic water supply system is divided into four areas: three to seven floors underground, municipal pipe network and nine-storey domestic water tanks supply water at the same time; From the eighth floor to the seventeenth floor, the decompression domestic water tank and the municipal pipe network on the nineteenth floor supply water at the same time; Eighteen to twenty-two floors are directly supplied with water by municipal pipelines; From the 23rd floor to the 3rd1floor, the depressurized water tank on the19th floor is pressurized and then supplied to the roof water tank for gravity water supply.
1. 1.2 The water supply source of this project is composed of two water supply pipe networks of water plants, each of which introduces a DN 150 water pipe, which directly supplies the underground water supply pipe from the third floor to the seventh floor, the water tank on the ninth floor, the water supply pipe from the eighth floor to the seventeenth floor and the domestic water tank on the nineteenth floor.
1. 1.3 Domestic water supply is mainly used for toilets on the third to ninth floors underground, some kitchens and office areas on the tenth to thirty-third floors.
1.2 drainage system
1.2. 1 Drainage system mainly refers to domestic sewage drainage system. According to the special needs of high-rise, the riser and the main pipe are connected by flexible drainage cast iron pipe and flange apron; The branch pipe (referring to the connecting pipe in the bathroom) adopts plastic drainage UPVC pipe, which is connected by socket bonding; The drain pipe is connected by socket cast iron drain pipe asbestos cement interface.
1.2.2 The drainage pipes of the tenth floor and above are gathered under the tenth floor (that is, the space of the ninth floor), and are discharged separately with DN200 drainage pipes, and the outlet elevation of horizontal drainage pipes is+3.70m; Other parts of the drainage, more than one layer of drainage pipe discharge, respectively, the same position of the riser discharge to its nearby underground three sewage pool, and then by their respective drainage pumps to the outdoor sewage well.
1.2.3 Long drainage risers are all arranged in ventilation pipes with the same diameter; When the above-ground part is discharged separately at the same position, the drainage riser at the same position of the underground part is still provided with a vent pipe with the same diameter and is communicated with the vent pipe of the above-ground part.
1.2.4 An interlayer is set at the inspection port on the drainage riser, and the height of the interlayer is 1.00m on each floor. When turning, special treatment is needed under special circumstances.
1.3 wastewater system
1.3. 1 Mainly consider the underground water collection for pipeline maintenance, overflow water from water tanks, drainage and underground water collection in case of fire. , collected by the waste water system and discharged into the third-floor underground sump, and then discharged to the outdoor under pressure by the lifting pump.
1.3.2 waste water riser adopts flexible cast iron drainage pipe and is connected with flange skirt; The branch pipe adopts UPVC pipe, which is connected by socket bonding.
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