Pressure type basement floor anti-seepage drainage system

Abstract

The application discloses a pressure type basement bottom plate anti-seepage drainage system, which comprises a pressurized water conveying device, a water seepage collecting device and a pressurized drainage device, a plurality of water seepage collecting devices are distributed in a matrix mode under the bottom plate, the pressurized water conveying device is communicated with the water seepage collecting device, and the water seepage collecting device is communicated with the pressurized drainage device. The application has the beneficial effects that the sleeve flow hole can guide the water seepage into the conical hopper and then into the water conveying pipe through the multi-layer water conservancy cloth, so that the water seepage in the bottom plate is effectively collected in the water conveying pipe; the air compressor is started to timely drain the water seepage into the water collecting pit, so that the thickness of the water-bearing layer is reduced at any time, and the harm caused by the water seepage in a large area is reduced; the sewage pump is started to drain the water seepage outside, so that the basement bottom plate water seepage problem is effectively solved, and the basement structure safety is effectively protected.

Description

Technical Field

[0001] This invention relates to the field of building engineering, and in particular to a pressure-type basement floor slab seepage prevention and drainage system. Background Technology

[0002] With the rapid development of the national economy, the problem of land scarcity has become increasingly prominent. People are increasingly inclined to develop and utilize underground space. However, due to reasons such as poor performance of waterproofing materials, temperature joints, settlement joints, and improper construction techniques (such as cold joints formed during pouring, insufficient vibration or vibration, premature load bearing, and premature formwork removal), there will be some degree of water seepage in the basement floor slab. This will bring a bad feeling to people in terms of appearance, smell, and property.

[0003] 1. For example, a Chinese patent discloses a concealed drainage system for basement floors (application number: CN201020100509.0), which includes a network of interconnected drainage ditches and at least one collection well installed on the foundation pad under the basement floor. The outlets of the drainage ditches lead to the drainage system, forming an interconnected drainage system. The drainage ditches are filled with gravel or pebbles, and the upper openings of the ditches are covered with nylon woven fabric. This system guides groundwater to the collection well through the concealed drainage ditches, reducing the pressure of seepage water under the floor and preventing groundwater from seeping into the surface of the floor, effectively preventing basement water seepage.

[0004] 2. For example, Chinese patent application number CN202220833435.4 discloses a large-scale underground cavern seepage prevention and drainage system. This system, constructed at different elevations, incorporates interception facilities, curtain seepage prevention facilities, and drainage facilities, forming a three-dimensional, multi-layered seepage prevention and drainage curtain. This utility model intercepts some of the incoming water through upward-sloping drainage holes in the top-level drainage corridor; water flowing into the top-level drainage corridor is diverted to the upper-level drainage corridor through vertical downholes; the curtain between the top-level drainage corridor, grouting corridor, upper-level drainage corridor, and middle and lower-level drainage corridors prevents groundwater in the surrounding rock from seeping into the underground cavern through cracks; the remaining groundwater behind the seepage prevention curtain is diverted to the lower-level drainage corridor through upward-sloping drainage holes and downholes in the upper-level drainage corridor and downholes in the middle-level drainage corridor, ultimately discharging outside the plant.

[0005] In engineering practice, leak-stopping agents, high-pressure grouting, expansion sealing strips, trenching, and diversion channels are commonly used to solve the problem, but these methods are difficult to implement, have a wide impact, seriously affect the normal use of basements, and are not very effective.

[0006] Therefore, it is necessary to propose a pressure-type basement floor slab seepage prevention and drainage system to address the above problems. Summary of the Invention

[0007] In view of the shortcomings of the prior art, the purpose of this invention is to provide a pressure-type basement floor slab waterproofing and drainage system to solve the above problems.

[0008] A pressure-type basement floor slab seepage prevention and drainage system includes a pressurized water supply device, a seepage collection device, and a pressurized drainage device. Several seepage collection devices are distributed in a matrix under the floor slab. The pressurized water supply device is connected to the seepage collection device, and the seepage collection device is connected to the pressurized drainage device.

[0009] Preferably, the pressurized water supply device includes an air compressor, a water supply pipe, and a solenoid valve, wherein the air compressor is connected to the beginning of the water supply pipe via the solenoid valve.

[0010] Preferably, the seepage collection device includes a sleeve and a conical funnel, the sleeve and the conical funnel are connected by heat fusion, and the conical funnel is connected to the water supply pipe through a connecting pipe.

[0011] Preferably, the sleeve opening is provided with a detachable maintenance sealing cover, and the sleeve has uniformly arranged sleeve drain holes.

[0012] Preferably, the inner wall of the conical funnel is provided with multiple layers of hydraulic fabric. Preferably, the connecting pipe is provided with a first fixed baffle, a second fixed baffle, a movable plate and a support plate. The first fixed baffle, the second fixed baffle and the support plate are all fixed to the inner wall of the connecting pipe. The movable plate is hinged to the first fixed baffle and the support plate is located below the first fixed baffle.

[0013] Preferably, the pressurized drainage system includes a sump, a level detector, and a submersible pump. The sump is connected to the end of a water pipe, and a solenoid valve is installed at the end of the water pipe. The level detector and the submersible pump are located in the sump and are electrically connected.

[0014] Preferably, the base slab includes subgrade soil, a concrete subbase, a waterproof membrane, a reinforced concrete self-waterproofing base slab, a gravel drainage layer, a tri-colored fabric isolation layer, a concrete slope-forming layer, and a finishing layer. The concrete subbase is laid on the subgrade soil, the waterproof membrane is laid on the concrete subbase, the reinforced concrete self-waterproofing base slab is laid on the waterproof membrane, the gravel drainage layer is laid on the reinforced concrete self-waterproofing base slab, the tri-colored fabric isolation layer is laid on the gravel drainage layer, the concrete slope-forming layer is laid on the tri-colored fabric isolation layer, and the finishing layer is laid on the concrete slope-forming layer.

[0015] Preferably, the water supply pipe is made of acid- and corrosion-resistant rigid plastic pipe.

[0016] Compared with existing technologies, the present invention has the following advantages: The invention features evenly distributed drainage holes on the sleeve, which introduce seepage water into a conical funnel. The seepage water is then filtered through multiple layers of hydraulic fabric and flows into the water supply pipe, effectively collecting the seepage water from the base slab. The air compressor is activated, transforming the stagnant seepage water in the water supply pipe into a flowing stream, promptly draining the seepage water into the sump, reducing the thickness of the aquifer, and mitigating the damage caused by large-scale seepage. When the level detector in the sump detects the water level reaching its highest point, it automatically activates the submersible pump to discharge the seepage water outdoors. When the level detector detects the water level reaching its lowest point, it automatically shuts off the submersible pump, achieving automatic control of the entire system. This timely and effective elimination of basement floor seepage problems provides effective protection for the structural safety of the basement. Attached Figure Description

[0017] Figure 1 This is a plan view of the pressure-type basement floor slab seepage prevention and drainage system of the present invention;

[0018] Figure 2 This is a system schematic diagram of the present invention;

[0019] Figure 3 This is a diagram showing the state of water leakage in the water supply pipe before the air compressor starts up, according to the present invention.

[0020] Figure 4 This is a diagram showing the state of water seepage in the water supply pipe after the air compressor of the present invention is started;

[0021] Figure 5 This is a partial enlarged schematic diagram (A) of the present invention;

[0022] Figure 6 This is a structural diagram of the seepage collection device of the present invention;

[0023] Figure 7 This is a schematic diagram of the installation of the present invention in a base plate with a hydrophobic layer;

[0024] Figure 8 This is a schematic diagram of the installation of the present invention in a base plate without a hydrophobic layer;

[0025] Figure 9 This is a schematic diagram of the mechanical characteristics of the hydraulic gradient line of the present invention.

[0026] The attached diagram is labeled as follows: 1. Plain soil; 2. Concrete cushion layer; 3. Waterproof membrane; 4. Reinforced concrete self-waterproofing base slab; 5. Gravel drainage layer; 6. Tricolor cloth isolation layer; 7. Concrete slope layer; 8. Finishing layer; 9. Seepage collection device; 10. Hydraulic slope line; 11. Sleeve; 12. Conical funnel; 13. Movable plate; 14. Support plate; 15. Removable and maintenance sealing cover; 16. Sleeve drain hole; 17. Multi-layer hydraulic fabric; 18. First fixed baffle; 19. Water supply pipe; 20. Air compressor; 21. Submersible sewage pump; 22. Basement exterior wall; 23. Solenoid valve; 24. High-pressure gas; 25. Water plug flow; 26. Normal pressure gas; 27. Pressurized water supply device; 28. Pressurized drainage device; 29. ​​Sump; 30. Connecting pipe; 31. Second fixed baffle; 32. Base plate; 33. Liquid level detector. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0031] like Figure 1 and combined Figures 2 to 9 As shown, a pressure-type basement floor slab seepage prevention and drainage system includes a pressurized water supply device 27, a seepage collection device 9, and a pressurized drainage device 28. Several seepage collection devices 9 are distributed in a matrix under the floor slab 32. The pressurized water supply device 27 is connected to the seepage collection device 9, and the seepage collection device 9 is connected to the pressurized drainage device 28.

[0032] Furthermore, the pressurized water supply device 17 includes an air compressor 20, a water supply pipe 19, and a solenoid valve 23. The air compressor 20 is connected to the beginning of the water supply pipe 19 through the solenoid valve 23.

[0033] Furthermore, the seepage collection device 9 includes a sleeve 11 and a conical funnel 12, the sleeve 11 and the conical funnel 12 are connected by heat fusion, and the conical funnel 12 is connected to the water supply pipe 19 through a connecting pipe 30.

[0034] Furthermore, the sleeve 11 is provided with a detachable maintenance sealing cover 10 at its opening, and sleeve drain holes 16 are evenly arranged on the sleeve 11.

[0035] Further beneficial effects of the solution: The detachable maintenance sealing cover 10 at the opening of the sleeve 11 can effectively prevent pollutants on the ground from entering the seepage prevention and drainage system, and the conical funnel 12 can be cleaned after disassembly.

[0036] Furthermore, the inner wall of the conical funnel 12 is provided with multiple layers of hydraulic fabric 17.

[0037] The following are the benefits of adopting a further solution: the inner wall of the conical funnel 12 is provided with multiple layers of hydraulic fabric 17, which can prevent debris in the seepage water from entering the seepage prevention and drainage system. The multiple layers of hydraulic fabric 17 can be cleaned and replaced at any time.

[0038] Furthermore, the connecting pipe 30 is provided with a first fixed baffle 18, a second fixed baffle 31, a movable plate 13 and a support plate 14. The first fixed baffle 18, the second fixed baffle 31 and the support plate 14 are all fixed to the inner wall of the connecting pipe 30. The movable plate 13 is hinged to the first fixed baffle 18 and the support plate 14 is located below the first fixed baffle 18.

[0039] The following benefits of adopting a further solution: Before the air compressor 20 is activated, the movable plate 13 installed inside the connecting pipe 30 is in a downward state due to gravity. Under the action of the support plate 14, the connecting pipe 30 is in an open state, which plays a guiding role for seepage water, making it easier for seepage water to flow into the water supply pipe in a timely manner. After a certain amount of water is collected, the air compressor 20 is started, and the movable plate 13 is pushed upward under the action of air pressure, forming a water plug flow with the second fixed baffle 31 and the water collection pit in the water supply pipe 19. This further makes the water plug flow in the water supply pipe 19 and the air compressor form a closed pressurized space. Under the continuous action of airflow, the water in the water collection pipe that was in a static state is forced to become a pressurized flow.

[0040] Furthermore, the pressurized drainage device 28 includes a water collection pit 29, a liquid level detector 33, and a submersible pump 21. The water collection pit 29 is connected to the end of the water pipe 19, and a solenoid valve 23 is installed at the end of the water pipe 19. The liquid level detector 33 and the submersible pump 21 are located in the water collection pit 29 and are electrically connected.

[0041] Furthermore, the base slab 32 includes plain soil 1, concrete cushion layer 2, waterproof membrane 3, reinforced concrete self-waterproof base slab 4, gravel drainage layer 5, tri-colored cloth isolation layer 6, concrete slope layer 7, and finishing layer 8. The concrete cushion layer 2 is laid on the plain soil 1, the waterproof membrane 3 is laid on the concrete cushion layer 2, the reinforced concrete self-waterproof base slab 4 is laid on the waterproof membrane 3, the gravel drainage layer 5 is laid on the reinforced concrete self-waterproof base slab 4, the tri-colored cloth isolation layer 6 is laid on the gravel drainage layer 5, the concrete slope layer 7 is laid on the tri-colored cloth isolation layer 6, and the finishing layer 8 is laid on the concrete slope layer 7.

[0042] Furthermore, the water supply pipe 19 is made of acid- and corrosion-resistant rigid plastic pipe, which can be acid-washed. The water supply pipe 19 can be laid according to the basement zoning, and it is advisable to disconnect it or add stainless steel corrugated pipes when passing through expansion joints.

[0043] Compared with the prior art, the present invention has the following advantages: The present invention uniformly arranges sleeve drainage holes 16 on the sleeve 11, which can introduce seepage water into the conical funnel 12. The seepage water is then filtered through multiple layers of hydraulic fabric 17 and flows into the water supply pipe 19, effectively collecting the seepage water in the base slab 32 in the water supply pipe 19. The air compressor 20 is turned on, turning the stagnant seepage water in the water supply pipe into flowing water, promptly discharging the seepage water into the sump 29, continuously reducing the thickness of the aquifer and mitigating the damage caused by large-scale seepage. When the level detector 33 in the sump 29 detects that the water level has reached its highest point, it will automatically start the submersible pump 21 to discharge the seepage water outdoors. When the level detector 33 detects that the water level has reached its lowest point, it will automatically shut down the submersible pump 21, achieving automatic control of the entire system. This timely and effective elimination of the basement basement floor seepage problem provides effective protection for the structural safety of the basement.

[0044] Working principle: Under the influence of its own water potential energy, seepage water from the basement floor slab passes through the drain hole 16 of the seepage collection device, is filtered by multiple layers of hydraulic fabric 17, and enters the water supply pipe 19 of the seepage collection system under the guidance of the conical funnel 12 and the movable plate 13 on the connecting pipe 30. After a certain amount of seepage water is collected inside the water supply pipe 19, the solenoid valves 23 on several branches are opened, and the air compressor 20 is started. Under the action of air pressure, the movable plate 13 is pushed upward and fits against the second fixed baffle 31. The collected water forms a water plug flow in the water supply pipe 19, which in turn interacts with the air compressor. The 20 rooms form a closed, pressurized space. Under the continuous action of airflow, the stagnant water in the collection pipe is forced to become pressurized and discharged into the collection pit 29 located at the end of the water supply pipe 19. As the seepage water continues to accumulate, when the water level sensor 33 located in the collection pit 29 detects that the water level in the collection pit 29 has reached its highest point, the submersible pump 21 starts to pump the water to the outdoor collection pit 29 through the linkage effect between the submersible pump 21 and the water level sensor 33. When the water level in the collection pit 29 reaches its lowest point, the submersible pump 21 automatically stops, basically realizing the automatic control of the entire system and timely and effectively removing seepage water from the basement floor.

[0045] The seepage collection device conforms to the hydraulic characteristics of a complete infiltration channel, such as... Figure 9 The diagram shows the mechanical characteristics of the hydraulic gradient line 10.

[0046] Flow rate of infiltration collection system:

[0047] Where Q: seepage flow rate, m 3 / d; K: Permeability coefficient, m / d;

[0048] R: Radius of influence, m; L: Length of infiltration channel, m;

[0049] H: Aquifer thickness, m; h0: Height of water level in the infiltration channel from the bottom of the aquifer, m;

[0050] It can be used to determine the spacing R of the water supply pipe 19 and the distance S of the infiltration device 9;

[0051] The seepage-based chemical dosing and delivery system conforms to relevant fluid mechanics characteristics.

[0052] Head loss along the route: h f =i*L

[0053]

[0054] Head loss along the pipeline: calculated using the equivalent length method based on the pipeline connection method.

[0055] Where H f Head loss along the friction path, kPa;

[0056] L: Calculated pipe length, in meters;

[0057] i: Head loss per unit length of pipe, kPa / m; d j : Calculated inner diameter of the pipe, in meters;

[0058] q g Design flow rate, m 3 / s;

[0059] C h : Haicheng-Williams coefficient;

[0060] Various plastic pipes, lined (coated) plastic pipes C h =140; can be used to determine the model of air compressor 20.

[0061] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A pressure-type basement floor slab seepage prevention and drainage system, characterized in that: The system includes a pressurized water supply device (27), a seepage collection device (9), and a pressurized drainage device (28). Several seepage collection devices (9) are arranged in a matrix under the base plate (32). The pressurized water supply device (27) is connected to the seepage collection device (9), and the seepage collection device (9) is connected to the pressurized drainage device (28). The pressurized water supply device (27) includes an air compressor (20), a water supply pipe (19), and a solenoid valve (23). The air compressor (20) is connected to the beginning of the water supply pipe (19) via the solenoid valve (23). The seepage collection device (9) includes a sleeve (…). 11) Conical funnel (12), the sleeve (11) and the conical funnel (12) are connected by heat fusion, the conical funnel (12) is connected to the water supply pipe (19) through the connecting pipe (30); the sleeve (11) is provided with a detachable maintenance sealing cover plate (10) at the opening, and the sleeve (11) is provided with sleeve drain holes (16) evenly arranged around its circumference; the inner wall of the conical funnel (12) is provided with multiple layers of hydraulic fabric (17); the connecting pipe (30) is provided with a first fixed baffle (18), a second fixed baffle (31), a movable plate (13) and a support plate (14), the first fixed baffle (18), the second fixed baffle (31), the movable plate (13) and the support plate (14) are provided inside the connecting pipe (30 ...1). A fixed baffle (18), a second fixed baffle (31), and a support plate (14) are all fixed to the inner wall of the connecting pipe (30). The movable plate (13) is hinged to the first fixed baffle (18), and the support plate (14) is located below the first fixed baffle (18). Before the air compressor (20) is activated, the movable plate (13) inside the connecting pipe (30) is in a downward state due to gravity. Under the action of the support plate (14), the connecting pipe (30) is in an open state, which plays a guiding role for seepage water, so that the seepage water can be promptly collected into the water supply pipe (19). After a certain amount of water is collected, the air compressor ( 20) Start-up, the movable plate (13) is pushed up under air pressure and fits against the second fixed baffle (31), and the water collection pit (29) forms a water plug flow in the water supply pipe (19); the pressurized drainage device (28) includes a water collection pit (29), a liquid level detector (33), and a submersible pump (21). The water collection pit (29) is connected to the end of the water supply pipe (19). A solenoid valve (23) is installed at the end of the water supply pipe (19). The liquid level detector (33) and the submersible pump (21) are set in the water collection pit (29). The liquid level detector (33) and the submersible pump (21) are electrically connected.

2. The pressure-type basement floor slab seepage prevention and drainage system as described in claim 1, characterized in that: The base plate (32) includes plain soil (1), concrete cushion layer (2), waterproof membrane (3), reinforced concrete self-waterproof base plate (4), gravel drainage layer (5), tri-colored cloth isolation layer (6), concrete slope layer (7) and finishing layer (8). The concrete cushion layer (2) is laid on the plain soil (1), the waterproof membrane (3) is laid on the concrete cushion layer (2), the reinforced concrete self-waterproof base plate (4) is laid on the waterproof membrane (3), the gravel drainage layer (5) is laid on the reinforced concrete self-waterproof base plate (4), the tri-colored cloth isolation layer (6) is laid on the gravel drainage layer (5), the concrete slope layer (7) is laid on the tri-colored cloth isolation layer (6), and the finishing layer (8) is laid on the concrete slope layer (7).

3. The pressure-type basement floor slab seepage prevention and drainage system as described in claim 2, characterized in that: The water supply pipe (19) is made of acid- and corrosion-resistant rigid plastic pipe.

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