Basement-grooved pressure relief drainage and anti-buoyancy system for bedrock areas

Abstract

This utility model discloses a base trenching pressure relief drainage and anti-buoyancy system for bedrock areas, comprising several overflow devices installed in a closed drainage ditch; the closed drainage ditch is installed on the building floor slab, and each ditch has several overflow holes at its bottom, arranged in a linear / grid pattern on the building floor slab; each overflow device includes a stainless steel pipe and a replaceable filter element installed inside the stainless steel pipe; each stainless steel pipe is vertically installed in a corresponding overflow hole at the bottom of the corresponding closed drainage ditch, and has an annular rotating cover at its upper end; a replaceable filter element is fixed in the inner hole of each rotating cover. This utility model constructs a safe and reliable closed drainage channel system by adding an overflow hole structure below the drainage ditch and cooperating with a pressure-resistant closed cover plate.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a base grooved pressure relief drainage and anti-buoyancy system for bedrock areas. Background Technology

[0002] In bedrock areas (such as karst landform regions like Guiyang), many buildings are constructed according to the terrain, resulting in significant differences in the height of basement floors. During periods of continuous heavy rainfall in the rainy season, surface water rapidly converges in low-lying areas, stagnating between the building foundation and the bedrock interface, creating high water head pressure. This pressure can easily lead to two serious problems: 1. Structural damage to the floor: When the water pressure exceeds the floor's buoyancy resistance, it can cause the floor to bulge, crack, or even experience water inrush; 2. Excessive instantaneous water inrush: Especially in areas with abundant water supply, traditional point-type overflow holes, due to their limited flow area, cannot promptly drain the sudden increase in groundwater, causing basement flooding.

[0003] Existing anti-buoyancy technologies have significant drawbacks:

[0004] 1. Passive anti-buoyancy methods (such as counterweight method and anti-uplift pile) are expensive and cannot dynamically adapt to changes in water pressure;

[0005] 2. Point-based active drainage (such as dispersed overflow holes) has low drainage efficiency and is difficult to cope with short-term large-flow replenishment;

[0006] Due to the aforementioned shortcomings of existing technologies, the renovation of existing buildings faces even greater challenges, such as poor construction feasibility and structural disturbance.

[0007] Therefore, how to make the drainage of the bedrock area base have a large discharge capacity, rapid response capability, and an active pressure relief and anti-buoyancy scheme applicable to both new and old buildings, so as to solve the anti-buoyancy problem under the special hydrogeological conditions of the bedrock area, has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] In view of the above-mentioned deficiencies of the prior art, this utility model provides a base trenching pressure relief drainage and anti-buoyancy system for bedrock areas. The purpose is to enable the drainage of the base in the bedrock area to have a large drainage capacity, rapid response capability, and an active pressure relief and anti-buoyancy solution applicable to both new and old buildings, so as to solve the anti-buoyancy problem under special hydrogeological conditions in the bedrock area.

[0009] To achieve the above objectives, this utility model discloses a base trenching pressure relief drainage and anti-buoyancy system for bedrock areas, including several overflow devices installed in a closed drainage ditch.

[0010] The enclosed drainage ditch is installed on the building floor slab, and each ditch is provided with several overflow holes at the bottom, so that the several overflow holes are arranged in a linear / grid pattern on the building floor slab.

[0011] Each of the overflow devices includes a stainless steel tube and a replaceable filter cartridge disposed within the stainless steel tube;

[0012] Each of the stainless steel pipes is vertically installed in the corresponding overflow hole at the bottom of the corresponding closed drainage ditch, and has an annular rotating cap at the top.

[0013] The replaceable filter element is fixed in the inner hole of each of the rotating caps.

[0014] Preferably, each of the filter elements is cylindrical, coaxially arranged with the corresponding stainless steel tube, and its upper end extends above the rotating cover;

[0015] Each of the filter elements is provided with a filter screen extending above the rotating cover.

[0016] Preferably, the rotating cover and the replaceable filter element are an integral structure.

[0017] Preferably, the enclosed drainage ditch includes a concrete ditch body and a concrete cover.

[0018] More preferably, the concrete trench and the concrete cover are sealed by an elastic sealing strip.

[0019] Preferably, each of the stainless steel tubes is fixed to the corresponding rotating cover by a threaded connection.

[0020] Preferably, the enclosed drainage ditch is connected to the water collection well.

[0021] The beneficial effects of this utility model are:

[0022] This invention enables the drainage of the bedrock area's foundation to have both large discharge capacity and rapid response capability, and is applicable to both new and old buildings, providing an active pressure relief and anti-buoyancy solution to solve the anti-buoyancy problem under special hydrogeological conditions in bedrock areas.

[0023] This invention constructs a safe and reliable closed drainage channel system by adding an overflow hole structure below the drainage ditch and cooperating with a pressure-resistant sealing cover.

[0024] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0025] Figure 1 A cross-sectional structural schematic diagram of an embodiment of the present invention is shown.

[0026] Figure 2 This diagram illustrates the connection between the rotating cover and the replaceable filter element in one embodiment of the present invention.

[0027] Figure 3 This diagram shows a structural schematic of a stainless steel tube in one embodiment of the present invention.

[0028] Figure 4 A schematic diagram of the longitudinal section structure of an embodiment of the present invention is shown.

[0029] Figure 5 The diagram shows a schematic representation of the filter screen in one embodiment of the present invention. Detailed Implementation

[0030] Example: Figures 1 to 4 As shown, the base trenching pressure relief drainage anti-buoyancy system for bedrock areas includes several overflow devices 1 installed in the closed drainage ditch 2;

[0031] The enclosed drainage ditch 2 is installed on the building floor slab, and each ditch has several overflow holes at the bottom, so that the overflow holes are arranged in a linear / grid pattern on the building floor slab.

[0032] Each overflow device 1 includes a stainless steel pipe 1-1 and a replaceable filter element 1-2 disposed within the stainless steel pipe 1-1;

[0033] Each stainless steel pipe 1-1 is vertically installed in the corresponding overflow hole at the bottom of the corresponding closed drainage ditch 2, and the upper end is provided with an annular rotating cover 1-3;

[0034] Replaceable filter cartridges 1-2 are fixed in the inner hole of each rotating cover 1-3.

[0035] This utility model constructs a safe and reliable closed drainage channel system by adding an overflow device 1 to the bottom of the closed drainage ditch 2, forming a "base grooved linear pressure relief" technical system.

[0036] This invention replaces traditional point overflow holes with linear / grid-like drainage ditches. Continuous trenches are excavated in the building's foundation slab to form a closed drainage ditch 2, and an overflow device 1 is installed at the bottom of the closed drainage ditch 2. Through a two-level protection mechanism—anti-clogging of the filter pipe and expansion of the ditch interface—it completely solves the bottleneck of instantaneous high-flow discharge during the rainy season and long-term siltation failure. Simultaneously, a three-level dynamic pressure relief system is constructed: the overflow device 1 precisely introduces bedrock fissure water, the drainage ditch facilitates high-flow confluence and transmission, and the collection well pumps out the water. A grid-like ditch network is laid out according to the terrain elevation difference to actively guide and drain water stagnant in low-lying areas (overcoming the pain point of terrain differences).

[0037] This utility model is a universal minimally invasive process that can be applied to both new and old buildings: for existing buildings, a combination of shallow cutting and grooving and bottom drilling is used to avoid structural disturbance and to allow the overflow hole to reach the source of water-rich zone in the bedrock fissures for pressure relief. The overflow device 1 has a modular quick-release design that can be maintained and replaced regularly, ensuring the reliability of the drainage system throughout its entire life cycle.

[0038] In practical applications, the overflow device 1 is embedded in the bottom of the closed drainage ditch 2, diverting the stagnant water between the bottom plate of the closed drainage ditch 2 and the foundation soil to the collection well 4, thus forming a complete drainage system during construction.

[0039] like Figure 2 , Figure 3 and Figure 5 As shown in some embodiments, each filter element 1-2 is cylindrical and coaxially arranged with the corresponding stainless steel tube 1-1, with its upper end extending above the rotating cover 1-3.

[0040] Each filter element 1-2 extends above the rotating cover 1-3 and is equipped with a filter screen 1-4.

[0041] In some embodiments, the rotating cover 1-3 and the replaceable filter element 1-2 are integrally formed.

[0042] The overflow device 1 and the closed drainage ditch 2 are combined to form an integrated drainage system.

[0043] In some embodiments, the enclosed drainage ditch 2 includes a concrete ditch body 2-1 and a concrete cover 2-2.

[0044] In some embodiments, the concrete trench 2-1 and the concrete cover 2-2 are sealed by an elastic sealing strip 2-3.

[0045] In some embodiments, each stainless steel tube 1-1 is fixed to the corresponding rotating cover 1-3 by a threaded connection.

[0046] In some embodiments, the enclosed drainage ditch 2 is connected to the collection well 4.

[0047] In practical applications, the closed drainage ditch 2 connected to the water collection well 4 can directly discharge the water overflowing from the overflow device 1 into the water collection well 4.

[0048] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A base trenching pressure relief drainage and anti-buoyancy system for bedrock areas; characterized in that, Includes several overflow devices (1) installed in the closed drainage ditch (2); The closed drainage ditch (2) is set on the building floor slab, and each of the ditches has several overflow holes at the bottom, so that the overflow holes are arranged in a linear / grid pattern on the building floor slab. Each of the overflow devices (1) includes a stainless steel tube (1-1) and a replaceable filter element (1-2) disposed within the stainless steel tube (1-1). Each of the stainless steel pipes (1-1) is vertically installed in the corresponding overflow hole at the bottom of the corresponding closed drainage ditch (2), and an annular rotating cover (1-3) is provided at the upper end. The replaceable filter element (1-2) is fixed in the inner hole of each of the rotating covers (1-3).

2. The base trenching pressure relief drainage and anti-buoyancy system for bedrock areas according to claim 1, characterized in that, Each of the filter elements (1-2) is cylindrical and coaxially arranged with the corresponding stainless steel tube (1-1), with its upper end extending above the rotating cover (1-3); Each of the filter elements (1-2) is provided with a filter screen (1-4) extending above the rotating cover (1-3).

3. The base trenching pressure relief drainage and anti-buoyancy system for bedrock areas according to claim 1, characterized in that, The rotating cover (1-3) and the replaceable filter element (1-2) are an integral structure.

4. The base trenching pressure relief drainage and anti-buoyancy system for bedrock areas according to claim 1, characterized in that, The enclosed drainage ditch (2) includes a concrete ditch body (2-1) and a concrete cover plate (2-2).

5. The base trenching pressure relief drainage and anti-buoyancy system for bedrock areas according to claim 4, characterized in that, The concrete trench (2-1) and the concrete cover plate (2-2) are sealed by an elastic sealing strip (2-3).

6. The base trenching pressure relief drainage and anti-buoyancy system for bedrock areas according to claim 1, characterized in that, Each of the stainless steel tubes (1-1) is fixed to the corresponding rotating cover (1-3) by means of a threaded connection.

7. The base trenching pressure relief drainage and anti-buoyancy system for bedrock areas according to claim 1, characterized in that, The enclosed drainage ditch (2) is connected to the water collection well (4).

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