Basement drainage pressure-limiting anti-floating water level control system

Abstract

The utility model discloses a basement drainage pressure-limiting anti-floating water level control system, and belongs to the technical field of building drainage. The basement drainage pressure-limiting anti-floating water level control system comprises an inner drainage facility arranged in a basement; according to the outdoor water level control well, a plurality of waterproof sleeves are arranged on the well wall, and the waterproof sleeves are in butt joint with an inner drainage facility; and the drainage blind pipe is communicated with the outdoor water level control well through the overflow vertical pipe. The underground water level is effectively controlled when the blind ditch loses efficacy and the drainage efficiency of the blind ditch is insufficient under the extreme weather condition, the anti-floating safety of the structure is guaranteed, meanwhile, the system can be conveniently overhauled, and normal operation of the system is guaranteed.

Description

Technical Field

[0001] The utility model relates to a technology in the field of building drainage, specifically a basement drainage pressure-limiting and anti-floating water level control system. Background Art

[0002] In recent years, the construction industry has been booming, the building volume has been increasing, the volume and depth of basements have also been increasing, and the impact of groundwater on underground buildings has become more and more prominent. The anti-floating design of basements is a very crucial content in basement structure design. The height and control of the basement anti-floating water level are directly related to the structural safety, use and cost of the basement. Therefore, in the case that the construction unit increasingly pursues cost control, in the construction land with a certain height difference, the application of the blind ditch hydrophobic pressure-limiting and anti-floating scheme for basements is increasing. However, in the long-term use process of such a scheme, in case of blind ditch failure or extreme weather, the groundwater level will rise. If it is not discovered and processed in time, seriously, the basement will float, crack and seep water, resulting in engineering accidents, and the workload, cycle and cost of subsequent accident handling and engineering repair are very large. Therefore, the control of the groundwater level has become a key factor for basement anti-floating safety. How to achieve the automatic control of the groundwater level and facilitate the reliability monitoring and maintenance of the blind ditch under the basement floor has become the biggest difficulty and pain point in the design and maintenance of such projects, and even affects the wide promotion of the hydrophobic pressure-limiting and anti-floating scheme.

[0003] In order to solve the above problems existing in the prior art, the present utility model comes into being. Summary of the Utility Model

[0004] Aiming at the above deficiencies existing in the prior art, the present utility model provides a basement drainage pressure-limiting and anti-floating water level control system, which can effectively control the groundwater level when the blind ditch fails and the problem of insufficient drainage efficiency of the blind ditch occurs in extreme weather, and ensure the anti-floating safety of the structure.

[0005] The present utility model relates to a basement drainage pressure-limiting and anti-floating water level control system, comprising:

[0006] An internal drainage facility, which is arranged in the basement;

[0007] An outdoor water level control well, on the well wall of which there are a plurality of waterproof sleeves, and the waterproof sleeves are connected to the internal drainage facility; and

[0008] A hydrophobic blind pipe, which is communicated with the outdoor water level control well through an overflow riser.

[0009] For some specific implementation schemes, the hydrophobic blind pipe is arranged in a hydrophobic filter layer, and a concrete cushion is covered above the hydrophobic filter layer. The basement is arranged above the concrete cushion.

[0010] For some specific embodiments, the internal drainage facilities mainly include drainage ditches and / or sump pits. Generally, pumps are installed in the internal drainage facilities. When the water level exceeds the preset level, the pumps will automatically start pumping to drain the excessive water in the internal drainage facilities and control the water level within the allowable range.

[0011] For some specific embodiments, the outdoor water level control well can be combined with the basement floor plan to coordinate with the functional layout of the building basement and / or the landscape plan of the basement roof to ensure perfect integration of all parts; preferably, it is set at the intersection of the hydrophobic blind ditches under the basement floor and / or important nodes. The outdoor water level control well penetrates the basement floor and roof, and a cover plate is provided at the top of the outdoor water level control well; on the one hand, it can prevent personal injuries such as falling; on the other hand, it can prevent sundries from falling into the well body and causing blockage, increasing the difficulty of inspection and maintenance; on the third hand, it can prevent a large amount of rainwater from pouring into the well body during short-term heavy rainfall or other extreme rainfall conditions, increasing the drainage burden; on the fourth hand, the basement water level and the operation effect of the hydrophobic blind ditches can be observed outdoors on the top of the basement, and the hydrophobic blind pipes can be regularly maintained and repaired through this outdoor water level control well; the cover plate preferably has high durability, anti-leakage performance and visibility, and is additionally provided with a normally closed protection measure.

[0012] For some specific embodiments, at the water level control elevation (the distance between this water level control elevation and the basement floor is not greater than the anti-floating reserved water head), a drain hole is reserved in the outdoor water level control well, and a waterproof sleeve is arranged in the drain hole for draining water; when the hydrophobic blind ditch is blocked or in case of adverse conditions such as extreme rainstorm weather, resulting in a sharp rise in the groundwater level to the water level control elevation, the groundwater can automatically flow out through the waterproof sleeve to control the basement water level not to exceed the anti-floating water head and prevent the basement from floating.

[0013] At the water level control elevation position, at least one drain hole is provided; when multiple drain holes are provided, they are arranged circumferentially around the outdoor water level control well.

[0014] Preferably, an overflow pipe is provided when there is a large height difference between the waterproof sleeve and the internal drainage facilities. On the one hand, the overflow pipe is connected to the waterproof sleeve, and the two are fixedly connected. On the other hand, the overflow pipe is connected to the internal drainage facilities and extends into the internal drainage facilities to prevent the overflow water from splashing when it falls into the internal drainage facilities due to a large height difference, polluting or even damaging the basement.

[0015] For some specific embodiments, the overflow riser is reinforced through a gravel layer circumferentially to ensure the structural stability of the overflow riser under various working conditions.

[0016] The waterproofing of the basement is an important task, especially for the outdoor water level control well that penetrates the basement floor slab and roof slab. Preferably, the measure of laying waterproof coiled materials is adopted for waterproof treatment; waterproof coiled materials are laid on the outer sides of the basement roof slab and floor slab, and at the positions close to the internal corners, a multi-layer waterproof coiled material lapping scheme is adopted to strengthen the waterproofing.

[0017] Compared with the prior art, the utility model has the following technical effects:

[0018] 1) In terms of safety, it is more reliable and has higher safety than the traditional ordinary blind ditch drainage scheme; the reliability of the traditional blind ditch drainage scheme for monitoring and controlling the groundwater level is relatively low, and it is not easy to detect and handle abnormal situations; this scheme can achieve automatic pressure relief and control the groundwater level within a certain height range, greatly increasing the reliability and safety.

[0019] 2) In terms of environmental protection, it reduces the production and use of basic building materials such as uplift piles and uplift anchor rods, achieves the effect of material saving, reduces the adverse impacts of production, transportation and construction, and is conducive to the realization of environmental protection and green buildings.

[0020] 3) In terms of economic value, it makes the hydrophobic pressure-limiting anti-floating scheme more perfect, reduces the use risk, increases the popularity of application, reduces the application of other anti-floating measures (such as uplift piles, uplift anchor rods or counterweights, etc.), reduces the project cost, and improves the overall economy of the project.

[0021] 4) In terms of social benefits, it conducts risk control to the greatest extent, reduces the probability of engineering accidents, and reduces the adverse social impacts. Description of the Drawings

[0022] Figure 1 It is the overall structural schematic diagram of Embodiment 1;

[0023] In the figure: 100, basement; 101, roof slab; 102, floor slab; 103, internal drainage facility; 104, concrete cushion; 200, hydrophobic blind pipe; 201, hydrophobic filter layer; 202, gravel layer; 203, overflow riser; 300, outdoor water level control well; 400, cover plate; 500, rigid waterproof sleeve; 501, waterproof sealing plate; 502, waterproof wing ring; 600, overflow pipe. Detailed Embodiment

[0024] The following describes the utility model in detail with reference to the drawings and the detailed embodiment.

[0025] Embodiment 1

[0026] As Figure 1 shown, this embodiment includes: an outdoor water level control well 300 and a hydrophobic blind pipe 200 that penetrate the roof slab 101 and the floor slab 102 of the basement 100.

[0027] The basement 100 is equipped with an internal drainage facility 103. The internal drainage facility 103 includes a drainage ditch, a sump is arranged at the confluence point of the drainage ditches, and a water pump is arranged in the sump.

[0028] The hydrophobic blind pipe 200 is buried in the hydrophobic filter layer 201. A concrete cushion 104 is laid above the hydrophobic filter layer 201. The thickness of the concrete cushion can be 100 mm and the strength is C15. The basement floor slab 102 is cast on the concrete cushion 103.

[0029] An overflow riser 203 is provided at the docking position of the hydrophobic blind pipe 200 and the outdoor water level control well 300. The overflow riser 203 is reinforced by a gravel layer 202. The gravel layer 202 is respectively connected to the hydrophobic filter layer 201, the outer surface of the overflow riser 203 and the concrete cushion 103.

[0030] The outdoor water level control well 300 is provided with a cover plate 400 at the top. The cover plate 400 has high durability and visibility, and can prevent leakage, such as a transparent plexiglass cover plate; and the cover plate is also provided with a normally closed protection measure, such as a lock. In case of maintenance and inspection, etc., the lock can be opened and then the cover plate 400 can be opened to enter the outdoor water level control well 300. The outdoor water level control well 300 is provided with a number of overflow holes on the well wall; for this embodiment, at the water level control elevation, it is preferably provided with 4 around the circumferential direction of the well wall. A waterproof sleeve is provided in the overflow hole. Both ends of the waterproof sleeve extend out of the overflow hole. In this embodiment, the waterproof sleeve adopts a rigid waterproof sleeve 500 to connect to the internal drainage facility. According to the position of the outdoor water level control well 300 relative to the basement, the number of overflow holes and waterproof sleeves can be adjusted accordingly.

[0031] The rigid waterproof sleeve 500 is provided with a waterproof sealing plate 501 and a waterproof wing ring 502. The waterproof wing ring 502 is buried in the basement wall, and the waterproof sealing plate 501 is abutted against the outer facade of the basement wall, that is, the wall surface of the outdoor water level control well 300. The above waterproof coiled material is laid on the waterproof sealing plate 501 to strengthen the waterproof at the overflow hole.

[0032] This embodiment is also provided with an overflow pipe 600. On the one hand, the overflow pipe is connected to the rigid waterproof sleeve 400 and the two are fixedly connected. On the other hand, the overflow pipe is connected to the internal drainage facility and extends into the internal drainage facility.

[0033] In this embodiment, the construction plan for the basement waterproof treatment is to lay waterproof coiled materials. Specifically, waterproof coiled materials are laid on the outer sides of the basement top slab and the bottom slab. Near the internal corner parts, the waterproof is strengthened by the method of overlapping multiple layers of waterproof coiled materials. An extruded polystyrene foam board can also be added to the outer layer of the waterproof coiled material to improve the waterproof, moisture-proof and anti-seepage performance. The waterproof treatment of the basement in this embodiment can refer to another utility model patent application (application number CN202220196795.8) already filed by the applicant.

[0034] During the operation of this embodiment, in case of extreme rainfall, when the drainage capacity of the hydrophobic blind pipe 200 exceeds the limit, excessive rainwater flows into the outdoor rainwater control well 300 through the overflow riser pipe 203; when the water level in the outdoor rainwater control well 300 reaches the preset water level control elevation, the excessive rainwater will fall into the internal drainage facility 103 through the rigid waterproof sleeve 500 and the overflow pipe 600, and finally be pumped away by the pump in the sump;

[0035] After the extreme rainfall situation ends, the hydrophobic blind pipe 200 can gradually restore its drainage capacity, and the excessive rainwater below the preset water level control elevation can be gradually drained away through the hydrophobic blind pipe 200; during this process, if the water level of the excessive rainwater below the preset water level control elevation does not change significantly, that is, the drainage capacity of the hydrophobic blind pipe 200 fails to recover in time, other measures can be taken to drain the water first, such as installing a temporary drainage pump in the outdoor rainwater control well 300, etc. After the water level drops, the system can be repaired to restore the drainage function of the hydrophobic blind pipe 200.

[0036] It should be emphasized that: the above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A basement drainage pressure-limiting and anti-floating water level control system, characterized in that Comprising: An internal drainage facility, arranged in the basement; An outdoor water level control well, on the well wall of which there are a number of waterproof sleeves, and the waterproof sleeves are connected to the internal drainage facility; And A hydrophobic blind pipe, which is communicated with the outdoor water level control well through an overflow riser pipe.

2. The basement drainage pressure-limiting and anti-floating water level control system according to claim 1, wherein The hydrophobic blind pipe is arranged in a hydrophobic filter layer, a concrete cushion is covered above the hydrophobic filter layer, and the basement is arranged above the concrete cushion.

3. The basement drainage pressure-limiting anti-floating water level control system according to claim 2, wherein The internal drainage facility includes a drainage ditch and / or a sump pit.

4. The basement drainage pressure-limiting and anti-floating water level control system according to claim 1, wherein The outdoor water level control well penetrates through the basement floor slab and the roof slab.

5. The basement drainage pressure-limiting anti-floating water level control system according to claim 1 or 4, characterized in that, A cover plate is provided at the top of the outdoor water level control well.

6. The basement drainage pressure-limiting and anti-floating water level control system according to claim 1, wherein, At the water level control elevation, a drain hole is reserved in the outdoor water level control well; the waterproof sleeve is arranged in the drain hole and both ends extend out of the drain hole.

7. The basement drainage pressure-limiting anti-floating water level control system according to claim 6, wherein When a plurality of drain holes are arranged at the water level control elevation position, they are arranged circumferentially around the outdoor water level control well.

8. The basement drainage pressure-limiting and anti-floating water level control system according to claim 1 or 6, characterized in that, An overflow pipe is also provided. On the one hand, the overflow pipe is connected to the waterproof sleeve and the two are fixedly connected. On the other hand, the overflow pipe is connected to the internal drainage facility and extends into the internal drainage facility.

9. The basement drainage pressure-limiting anti-floating water level control system according to claim 2, characterized in that, The overflow riser pipe is reinforced circumferentially through a gravel layer, and the gravel layer is respectively connected to the hydrophobic filter layer, the outer surface of the overflow riser pipe and the concrete cushion.

10. The basement drainage pressure-limiting anti-floating water level control system according to claim 2, wherein The basement is waterproofed.

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