Basement drainage structure in range of high-rise main building raft
By setting up water collection pits and burying drainage pipes on the side of the raft foundation of high-rise buildings, the problems of complex and high cost in the existing technology are solved, and the effects of simplifying construction and saving costs are achieved.
Patent Information
- Application Number
- CN202420140521.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-19
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-19
AI Technical Summary
In the basement of high-rise buildings, the prior art requires the installation of water collecting holes in the raft foundation, resulting in complex construction, high cost and long construction period.
Design a basement drainage structure within the raft slab of the high-rise main building. By setting up a collecting hole on the side of the raft foundation and burying drain pipes and cooling water pipes in the raft foundation, one end of the drain pipe is connected to the floor drain and the other end extends to In the water collection pit, a submersible pump is installed in the water collection pit to connect to the outdoor rainwater pipeline network to avoid setting up a water collection pit in the foundation of the raft.
The construction process is simplified, the construction period is shortened, the project cost is saved, and the integrity of the raft foundation is not damaged.
Smart Images
Figure CN222140100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underground engineering, and in particular to a basement drainage structure within the range of a high-rise main building raft, which is suitable for high-rise buildings with basements, and the main building adopts a natural foundation raft foundation or a pile raft foundation, while the basement floor extending beyond the main building adopts a waterproof floor or a structural floor. Background Art
[0002] At present, most of the newly built buildings are high-rise buildings, and in order to solve the parking spaces and equipment rooms, basements are set up. Therefore, most of them are one high-rise building with a basement or multiple buildings with a large connected basement. Basement drainage is a content that must be considered in the construction of basement projects. The water must first be collected in the sump and then pumped out of the basement using a submersible pump. In actual projects, in order to meet the specifications and use requirements, it is inevitable to set up a drainage collection point (sump) in the basement (raft) within the scope of the high-rise main building. For the high-rise main building, due to the large load, the foundation adopts a natural foundation raft or pile raft. Since the raft is thick, a sump is set up in the raft. According to the foundation pit JK structure of the 22G101-3 national standard atlas, the cost is high, the construction is complex, and the construction period is long. In addition, the thicker the raft, the greater the cost of setting up a sump in the raft. Utility Model Content
[0003] The utility model aims to solve the above problems existing in the prior art and to provide a basement drainage structure within the raft slab of a high-rise main building, which can avoid setting up a sump in the raft foundation, simplify construction, shorten construction period and save engineering costs.
[0004] The above-mentioned purpose of the utility model is achieved through the following technical solutions:
[0005] A basement drainage structure within the raft slab of a high-rise main building comprises a raft foundation, wherein the raft foundation is arranged on a foundation cushion layer, a building slope surface layer is laid on the raft foundation, a floor drain is installed in the building slope surface layer, a drainage pipe is buried in the raft foundation, a sump is arranged on the side of the raft foundation, one end of the drainage pipe is connected to the floor drain, and the other end extends into the sump, a submersible pump is installed in the sump, and the submersible pump is connected to an outdoor rainwater pipe network through a drainage pipe.
[0006] As mentioned above, a cooling water pipe is also buried in the raft foundation, and both ends of the cooling water pipe extend out of the raft foundation.
[0007] As mentioned above, the sump is arranged in the basement waterproofing board at the side of the raft foundation, and the basement waterproofing board is connected to the side of the raft foundation.
[0008] As mentioned above, the sump is arranged in the basement structural floor at the side of the raft foundation, and the basement structural floor is connected to the side of the raft foundation.
[0009] As mentioned above, the drainage pipe is a PVC pipe or a steel pipe, the drainage pipe is a PVC pipe or a steel pipe, and the cooling water pipe is a PVC pipe or a steel pipe.
[0010] As mentioned above, the length of the cooling water pipe is 150m to 200m.
[0011] As mentioned above, one end of the drainage pipe connected to the floor drain is 200 to 500 mm higher than the top surface of the raft foundation, and one end of the drainage pipe extending to the sump extends 200 to 500 mm beyond the side of the raft foundation.
[0012] As mentioned above, the slope of the building slope surface layer is 1%.
[0013] Compared with the prior art, the utility model has the following advantages:
[0014] 1. The basement drainage structure of the utility model will not destroy the integrity of the raft foundation and reduce the impact on the raft foundation;
[0015] 2. Avoid setting up sump pits in the raft foundation of high-rise buildings to simplify construction, shorten construction period and save project costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the partial layout of the plane of the utility model;
[0017] Figure 2 for Figure 1 Schematic diagram of the cross section of AA in FIG.
[0018] Figure 3 This is a schematic diagram of the cooling water pipe arrangement of the utility model;
[0019] Figure 4 This is a schematic diagram of the connection layout of the cooling water pipe and the drainage pipe during the construction of the utility model;
[0020] In the figure: 1- raft foundation; 2- basement waterproofing board; 3- floor drain; 4- drainage pipe; 5- sump; 6- cooling water pipe; 7- building slope surface layer; 8- foundation cushion layer; 9- submersible pump; 10- drainage pipe. DETAILED DESCRIPTION
[0021] In order to facilitate ordinary technicians in this field to understand and implement the present invention, the present invention is further described in detail below in conjunction with embodiments. It should be understood that the implementation examples described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0022] Embodiment 1:
[0023] A basement drainage structure within the raft range of a high-rise main building comprises a raft foundation 1, the raft foundation 1 is arranged on a foundation cushion layer 8, the raft foundation 1 is located below the main building, a building slope surface layer 7 is laid on the raft foundation 1, a floor drain 3 is installed in the building slope surface layer 7, a drainage pipe 4 and a cooling water pipe 6 are buried in the raft foundation 1, a sump 5 is arranged on the side of the raft foundation 1, one end of the drainage pipe 4 is connected to the floor drain 3, and the other end extends into the sump 5, both ends of the cooling water pipe 6 extend out of the raft foundation 1, a submersible pump 9 is installed in the sump 5, and a drainage pipe 10 is installed to connect the submersible pump 9 to an outdoor rainwater pipe network.
[0024] As a preferred solution, the sump 5 is arranged in the basement waterproof board 2 on the side of the raft foundation 1, the basement waterproof board 2 is connected to the side of the raft foundation 1, and the sump 5 is a part of the basement waterproof board 2 and is waterproofed.
[0025] As another preferred solution, the sump 5 is arranged in the structural bottom plate at the side of the raft foundation 1. The structural bottom plate is connected to the side of the raft foundation 1.
[0026] Embodiment 2:
[0027] A construction method for a basement drainage structure within a raft slab of a high-rise main building comprises the following steps:
[0028] Step 1: Design the raft foundation 1 of the main building according to the upper structure load of the high-rise main building, determine whether the raft foundation 1 of the main building adopts a natural raft foundation or a pile raft foundation, and determine the outline and thickness of the raft foundation 1. The basement outside the scope of the main building is constructed with a basement waterproof board 2 or a basement structural bottom plate, and the basement waterproof board 2 / basement structural bottom plate is connected to the raft foundation 1.
[0029] Step 2: Design the drainage of the basement to determine the location of the floor drain 3 within the raft slab of the high-rise main building and the location of the sump 5 close to the side of the raft foundation 1.
[0030] Step 3, determine the position and elevation of the drain pipe 4 used to connect the floor drain 3 and the sump 5. The drain pipe 4 is a PVC pipe or steel pipe with a diameter of 110 mm. The drain pipe 4 needs to be pre-buried according to the design requirements during the construction of the raft foundation 1. The end of the drain pipe 4 connected to the floor drain 3 needs to be 200 to 500 mm higher than the top surface of the raft foundation 1. The end of the drain pipe 4 extending to the sump 5 needs to extend 200 to 500 mm from the side of the raft foundation 1. It is also stated that the drain pipe 4 can also serve as a cooling water pipe 6 for the temperature control measures used when the raft foundation 1 is used as a mass concrete construction.
[0031] Step 4: Before pouring concrete on the raft foundation 1, measures should be taken according to the technical requirements for temperature measurement and control of large-volume concrete. The cooling water pipe 6 should be laid out in combination with the pre-buried position of the drainage pipe 4. When the thickness of the raft foundation 1 is not more than 3m, a single-layer multi-circuit cooling water pipe 6 should be laid out. When the thickness of the raft foundation 1 is more than 3m, two or more layers of multi-circuit cooling water pipes 6 should be laid out. The length of each circuit cooling water pipe 6 is 150m to 200m. The spacing between the cooling water pipes 6 and the distance between the cooling water pipes 6 and the edge of the raft foundation 1 are 1.5m to 2.0m. Because the cooling water pipe 6 uses a PVC pipe or steel pipe with a diameter of 30mm to 50mm, when the drainage pipe 4 also serves as the cooling water pipe 6, the cooling water pipe 6 should be connected to the drainage pipe 4 using a reducer.
[0032] Step 5: After the raft foundation 1 is poured and initially set, the water cooling system is promptly started to inject water into the cooling water pipe 6 and the drainage pipe 4 and the water flow and water temperature are adjusted to control the temperature difference between the water inlet temperature and the temperature of the poured concrete. At the same time, the thermal insulation and moisture maintenance of the concrete should be strengthened.
[0033] Step 6: After the water cooling is completed, the two ends of the drain pipe 4 are disconnected from the cooling water pipe 6, and the two ends of the drain pipe 4 are temporarily blocked to ensure that the inside of the drain pipe 4 is unobstructed. The cooling water pipe 6 is promptly grout-grouted and blocked with cement slurry.
[0034] Step 7, construct the building slope surface layer 7 on the raft foundation 1, one end of the drainage pipe 4 and the floor drain 3 is installed at the lowest point of the building slope surface layer 7, install the floor drain 3, the slope of the building slope surface layer 7 is about 1%, and the thickness of the building slope surface layer 7 is 20-100mm.
[0035] Step 8, clear the temporary blockage at both ends of the drainage pipe 4, install a submersible pump 9 in the sump 5, and install a drainage pipe 10 to connect the submersible pump 9 to the outdoor rainwater pipe network, so that the submersible pump 9 can pump the water in the sump 5 to the outdoor rainwater pipe network.
[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A basement drainage structure within the raft slab of a high-rise main building, comprising a raft slab foundation (1), characterized in that: The raft foundation (1) is arranged on a foundation cushion layer (8), a building slope surface layer (7) is laid on the raft foundation (1), a floor drain (3) is installed in the building slope surface layer (7), a drainage pipe (4) is buried in the raft foundation (1), a sump (5) is arranged on the side of the raft foundation (1), one end of the drainage pipe (4) is connected to the floor drain (3), and the other end extends into the sump (5), a submersible pump (9) is installed in the sump (5), and the submersible pump (9) is connected to an outdoor rainwater pipe network through a pumping and drainage pipe (10).
2. The basement drainage structure within the raft slab of a high-rise main building according to claim 1, characterized in that: A cooling water pipe (6) is also buried in the raft foundation (1), with both ends of the cooling water pipe (6) extending outside the raft foundation (1).
3. The basement drainage structure within the raft slab of a high-rise main building according to claim 1 is characterized in that: The sump (5) is arranged in a basement waterproofing board (2) on the side of the raft foundation (1), and the basement waterproofing board (2) is connected to the side of the raft foundation (1).
4. The basement drainage structure within the raft slab of a high-rise main building according to claim 1, characterized in that: The sump (5) is arranged in a basement structural floor plate at the side of the raft foundation (1), and the basement structural floor plate is connected to the side of the raft foundation (1).
5. The basement drainage structure within the raft slab of a high-rise main building according to claim 2, characterized in that: The drainage pipe (4) is a PVC pipe or a steel pipe, the drainage pipe (10) is a PVC pipe or a steel pipe, and the cooling water pipe (6) is a PVC pipe or a steel pipe.
6. The basement drainage structure within the raft slab of a high-rise main building according to claim 2, characterized in that: The length of the cooling water pipe (6) is 150m to 200m.
7. The basement drainage structure within the raft slab of a high-rise main building according to claim 1, characterized in that: One end of the drainage pipe (4) connected to the floor drain (3) is 200 to 500 mm higher than the top surface of the raft foundation (1), and one end of the drainage pipe (4) extending to the sump (5) extends 200 to 500 mm beyond the side of the raft foundation (1).
8. The basement drainage structure within the raft slab of a high-rise main building according to claim 1, characterized in that: The slope of the building slope surface layer (7) is 1%.