Base drainage and pressure reduction structure of house building
By setting up an inclined structure and filter layer at the bottom of the foundation pit, combined with a water pump and monitoring system, automated drainage is achieved, solving the problem of sediment accumulation in the foundation pit, saving energy and improving drainage efficiency.
Patent Information
- Application Number
- CN202520396863.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-08
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-08
AI Technical Summary
In traditional drainage and pressure-reducing structures, the accumulation of impurities in the foundation pit leads to a reduction in water collection, requiring frequent operation of water pumps, resulting in energy waste, and making it difficult to effectively control when the groundwater level changes.
The design incorporates an inclined structure at the bottom of the foundation pit, equipped with a filter layer and permeable holes. Combined with a water pump and monitoring mechanism, the drainage is automatically regulated by a controller to prevent sediment accumulation and achieve automated drainage.
It effectively reduces sediment accumulation, lowers energy consumption, improves drainage efficiency, extends the service life of the foundation pit, and adapts to changes in groundwater level.
Smart Images
Figure CN223793615U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building drainage technology, and in particular to a foundation drainage and pressure reduction structure for building structures. Background Technology
[0002] Building construction refers to engineering projects that include roofs, beams, columns, walls, foundations, and the formation of internal spaces to meet people's needs for production, residence, study, and public activities. Building construction projects are generally referred to as construction projects, which include all the technical work such as surveying, planning, design, construction, installation, and maintenance of new buildings and ancillary structures, as well as the completed physical structures.
[0003] The building foundation refers to the lowest part of a building's base. Under the influence of groundwater and rainwater, the foundation slab experiences significant buoyancy, resulting in substantial buoyancy for the entire building. In existing buildings, the significant buoyancy exerted on the basement slab poses a considerable threat to structural stability. Currently, anti-buoyancy methods include passive and active methods. Passive anti-buoyancy methods include weight-adding, friction, and pile-anchoring; active anti-buoyancy methods primarily involve dewatering. Passive anti-buoyancy solutions offer long-term safety advantages, but they are typically complex to construct and costly. While anti-buoyancy design is unnecessary when groundwater levels are normally low, it becomes difficult to determine the design water level for rapid rises in summer, making it challenging to balance economy and safety. Active anti-buoyancy typically involves installing a reliable drainage and pressure-reducing structure at the bottom of the building's foundation slab to address the issue of high buoyancy.
[0004] Traditional drainage and pressure-reducing structures mostly rely on pumps to remove water from the foundation pit, thereby reducing the pressure on the foundation. However, the water flowing into the foundation pit contains a large amount of dust, soil, and other impurities. These impurities accumulate at the bottom of the pit over time, making the pit shallower and shallower, which severely reduces the water collection capacity. This necessitates frequent pumping for drainage, resulting in energy waste. Summary of the Invention
[0005] In view of this, the present invention provides a drainage and pressure-reducing structure for the foundation of a building, which has the characteristics of good long-term use effect and energy saving.
[0006] This utility model solves the above problems through the following technical means:
[0007] The present invention relates to a drainage and pressure-reducing structure for the foundation of a building, comprising a foundation, on which a pit for collecting water is formed, the bottom of the pit being inclined to one side, the outer side of the pit being covered with a first filter layer and a second filter layer, the sidewall of the pit having a plurality of first permeable holes arranged in a matrix to connect the inside and outside of the sidewall of the pit, a drainage mechanism for pumping water out of the pit being provided at the lower part of the pit, and a monitoring mechanism for monitoring the water level being provided in the pit, the drainage mechanism and the monitoring mechanism being controlled and connected to the same controller.
[0008] Preferably, the drainage mechanism includes a water pump that extends into the pit and is disposed at the lower part of the pit, and a drainage pipe for pumping water outward in conjunction with the water pump.
[0009] Preferably, the monitoring mechanism includes an alarm fixed to the base by a mounting plate, a level gauge extending vertically downward into the pit and electrically connected to the alarm, the level gauge being electrically connected to the signal input port of the alarm's controller, and the audible and visual alarm element of the alarm being electrically connected to the signal output port of the controller.
[0010] Preferably, the first permeable hole has a structure that is inclined towards the inner wall of the pit.
[0011] As a further improvement to the above technical solution, the bottom of the foundation pit is provided with a plurality of second permeable holes arranged in a matrix to connect the inside and outside of the bottom of the foundation pit, and the second permeable holes are vertical structures.
[0012] Preferably, the inner bottom of the pit is covered with a third filter layer.
[0013] Preferably, the first filter layer is a gravel layer, and the inner side of the gravel layer is reinforced and separated by a steel mesh.
[0014] Preferably, the second filter layer is a three-dimensional composite mesh formed by connecting a three-dimensional mesh plate with permeable geotextile on both sides.
[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects:
[0016] The present invention relates to a drainage and pressure-reducing structure for the foundation of a building. The bottom of the foundation pit is designed to be inclined to one side, and the drainage mechanism is located at the lower part of the inclined structure. This design allows the sediment at the bottom of the foundation pit to slide toward the drainage mechanism and be discharged outward by the drainage mechanism. This prevents the sediment at the bottom of the foundation pit from accumulating more and more away from the drainage mechanism, thereby significantly reducing the water collection capacity of the foundation pit and avoiding the need to frequently turn on the water pump for drainage, thus avoiding energy waste. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the drainage and pressure-reducing structure of the building foundation of this utility model.
[0018] like Figure 1 , Base-1, Foundation pit-2, Drainage mechanism-3, Water pump-31, Drainage pipe-32, Monitoring mechanism-4, Alarm-41, Liquid level gauge-42, First filter layer-5, Second filter layer-6, Reinforcing steel mesh-7, First water permeable hole-8, Second water permeable hole-9. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0021] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1 As shown: The foundation drainage and pressure reduction structure of the building described in this embodiment includes a foundation 1, on which a foundation pit 2 for collecting water is provided. The bottom of the foundation pit 2 is a structure that slopes to one side. The outer side of the foundation pit 2 is covered with a first filter layer 5 and a second filter layer 6. The side wall of the foundation pit 2 has a plurality of first permeable holes 8 arranged in a matrix to connect the inside and outside of the side wall of the foundation pit 2. The lower part of the foundation pit 2 is provided with a drainage mechanism 3 for pumping out the water in the foundation pit 2. The foundation pit 2 is provided with a monitoring mechanism 4 for monitoring the water level. The drainage mechanism 3 and the monitoring mechanism 4 are controlled and connected to the same controller (not shown in the figure).
[0022] The drainage and pressure-reducing structure of the foundation 1 of the building described in this embodiment sets the bottom of the foundation pit 2 to be inclined to one side, and sets the drainage mechanism 3 at the lower position of the inclined structure. This structure allows the sediment at the bottom of the foundation pit 2 to slide towards the drainage mechanism 3 and be discharged outward by the drainage mechanism 3, avoiding the accumulation of sediment at the bottom of the foundation pit 2 away from the drainage mechanism 3, which would severely reduce the water collection capacity of the foundation pit 2 and the need to frequently turn on the water pump for drainage, thus avoiding energy waste.
[0023] In practical applications, the monitoring mechanism 4 constantly monitors the water level in the foundation pit 2 and sends the water level signal to the controller. When the water level in the foundation pit 2 reaches the set height, an alarm is triggered, and the controller activates the drainage mechanism 3 to drain water. When the drainage mechanism 3 cannot drain water, the water level in the foundation pit 2 is at its lowest, and the controller then shuts off the drainage mechanism 3.
[0024] Specifically, the drainage mechanism 3 includes a water pump 31 that extends into the pit 2 and is located at the lower part of the pit 2, and a drainage pipe 32 that cooperates with the water pump 31 to pump water outward.
[0025] In a preferred embodiment of the above embodiments, the monitoring mechanism 4 includes an alarm 41 fixed to the base 1 via a mounting plate, and a level gauge 42 extending vertically downward into the pit 2 and electrically connected to the alarm 41. The level gauge 42 is electrically connected to the signal input port of the controller, and the audible and visual alarm element of the alarm 41 is electrically connected to the signal output port of the controller. When the drainage mechanism 3 in the drainage structure cannot effectively lower the water level in the pit 2, and the water level in the pit 2 rises to the position of the level gauge 42, the level gauge 42 detects a continuous high water level signal and transmits this signal to the controller. The controller then controls the audible and visual alarm element to emit a continuous alarm sound to alert people that the water level in the pit 2 is high and that additional drainage mechanism 3 is needed to accelerate drainage.
[0026] As a preferred embodiment of the above embodiments, the first permeable hole 8 is inclined to the inner wall of the foundation pit 2. This structure facilitates the flow of groundwater into the foundation pit 2, avoids the negative impact of excessive external water pressure on the foundation pit 2, and can also push outwards when the water level in the foundation pit 2 is too high to achieve internal and external pressure balance, thereby extending the service life of the foundation pit 2 to a certain extent.
[0027] As a further improvement of the above embodiment, the bottom of the foundation pit 2 is provided with a plurality of matrix-arranged second permeable holes 9 that connect the inside and outside of the bottom of the foundation pit 2. The second permeable holes 9 are vertical structures. This structure facilitates the forward and reverse flow of water through the second permeable holes 9, balances the internal and external pressures at the bottom of the foundation pit 2, and further extends the service life of the foundation pit 2 to a certain extent. When the water in the foundation pit 2 flows downward through the second permeable holes 9, it seeps into the ground after being filtered by the second filter layer 6 and the first filter layer 5, and can also become a clean groundwater source.
[0028] As a preferred embodiment of the above embodiments, a third filter layer (not shown in the figure) is laid on the inner bottom of the foundation pit 2. The third filter layer can effectively prevent the second water-permeable hole 9 from being blocked.
[0029] Specifically, the first filter layer 5 is a gravel layer, and the second filter layer 6 is a three-dimensional composite mesh formed by connecting a three-dimensional grid plate with permeable geotextile on both sides. In order to facilitate construction and improve the overall strength, as a preferred embodiment of the above embodiment, the gravel layer and the three-dimensional composite mesh are reinforced and separated by a reinforcing steel mesh 7.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A foundation drainage and pressure-reducing structure for a building, characterized in that: The device includes a base on which a pit for collecting water is formed. The bottom of the pit is inclined to one side. The outside of the pit is covered with a first filter layer and a second filter layer. The sidewall of the pit has a plurality of first permeable holes arranged in a matrix to connect the inside and outside of the sidewall of the pit. The lower part of the pit is provided with a drainage mechanism for pumping water out of the pit. The pit is provided with a monitoring mechanism for monitoring the water level. The drainage mechanism and the monitoring mechanism are controlled and connected to the same controller.
2. The foundation drainage and pressure-reducing structure for a building according to claim 1, characterized in that: The drainage mechanism includes a water pump that extends into the pit and is located at the lower part of the pit, and a drainage pipe for pumping water outward in conjunction with the water pump.
3. The foundation drainage and pressure-reducing structure for a building according to claim 1, characterized in that: The monitoring mechanism includes an alarm fixed to the base by a mounting plate and a level gauge extending vertically downward into the pit and electrically connected to the alarm.
4. The foundation drainage and pressure-reducing structure for a building according to claim 1, characterized in that: The first permeable hole is a structure that is inclined towards the inner wall of the foundation pit.
5. The foundation drainage and pressure-reducing structure for a building according to claim 1, characterized in that: The bottom of the foundation pit is provided with a plurality of second permeable holes arranged in a matrix to connect the inside and outside of the bottom of the foundation pit. The second permeable holes are vertical structures.
6. The foundation drainage and pressure-reducing structure for a building according to claim 5, characterized in that: The bottom of the pit is covered with a third filter layer.
7. The foundation drainage and pressure-reducing structure for a building according to claim 1, characterized in that: The first filter layer is a gravel layer, and the inner side of the gravel layer is reinforced and separated by a steel mesh.
8. The foundation drainage and pressure-reducing structure for a building according to claim 1, characterized in that: The second filter layer is a three-dimensional composite mesh formed by connecting a three-dimensional grid plate with permeable geotextile on both sides.