Underground space geologic body water level dynamic stability adjusting device

Abstract

The utility model provides an underground space geologic body water level dynamic stability adjusting device, which not only solves the problem of water seepage in an underground space, but also can adjust and maintain the stability of the underground space and the geological environment at the lower part of a building in dry or rainy seasons. According to the technical scheme, the system comprises a plurality of water wells arranged in an underground space; the underground water level detection devices are arranged in all the water wells, and the underground water level detection devices are used for detecting the water levels in the water wells; the water pumping and filling device is used for recharging the water well or pumping water out of the water well; and the electric control box is used for receiving the water level signal of the underground water level detection device and controlling water pumping or water recharging from the water well through the water level signal. The bottom of the water well is communicated with a plurality of seepage collecting pipes radiating towards the periphery of the water well, and the seepage collecting pipes exchange liquid with external underground water; the seepage collecting pipe is sequentially wrapped with geotechnical cloth and a gauze element.

Description

Technical Field

[0001] The utility model relates to a drainage device, in particular to a dynamic stabilization regulating device for the water level of an underground geological body. Background Art

[0002] Because underground spaces are located below the surface and are subject to the long-term effects of groundwater, water seepage is a common problem. Because underground spaces are supported by both geological bodies and groundwater, groundwater cannot be extracted simply through vertical shafts, as this would cause significant changes in the structure of the underground geological bodies. When water seepage is discovered, direct extraction of groundwater by drilling wells in the underground space has the following drawbacks: First, the groundwater level has already risen excessively, and pumping out a large amount of water will cause the groundwater level to drop. During the pumping process, the geological structure will change, easily leading to significant deformation of the geological body. Second, due to the high groundwater level, suddenly extracting large amounts of groundwater will lead to drastic changes in the geological environment.

[0003] Therefore, the geological structure of the underground space is affected by the frequent fluctuations of the groundwater level, so the geological structure of the underground space should be kept in a relatively stable geological environment, including the groundwater level is not prone to large changes. However, due to global climate change and other reasons, heavy rainfall and long-term rainfall will cause water seepage or even water accumulation in the underground space, which will not only change the geological environment, but also induce deformation of the underground structure. Therefore, there is an urgent need for a device that can adjust the groundwater level in the geological body where the structure is located. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a dynamic stabilization regulating device for the water level of the underground geological body, which not only solves the problem of water seepage in the underground space, but also can maintain the groundwater level in the geological body of the underground space in a relatively stable state during the dry season or rainy season, thereby ensuring the relative stability of the geological environment in which the underground space and buildings are located.

[0005] The technical solution is a device for dynamically stabilizing the water level of an underground geological body, comprising:

[0006] Multiple water wells set up in the underground space;

[0007] Groundwater level detection device: each well is equipped with a groundwater level detection device, which is used to detect the water level in the well;

[0008] A water pumping device is used to refill water into the well or pump water out of the well;

[0009] The electrical control box receives water level signals from the groundwater level detection device and uses these signals to control the pumping or supply of water from the water supply well. The bottom of the well is connected to multiple seepage collection pipes radiating outward from the well, exchanging liquid with the external groundwater. These seepage collection pipes are wrapped in geotextile and gauze.

[0010] Furthermore, it also includes a detection cylinder placed in the water well, the lower end of the detection cylinder is connected to a water seepage cylinder, the lower end of the water seepage cylinder is connected to a tray, the detection cylinder and the water seepage cylinder are connected to form a water-containing cavity, and the groundwater level detection device is placed in the water-containing cavity.

[0011] Furthermore, a hollow cylinder extending upward is fixed on the tray, and a water groove is opened on the side of the lower end of the hollow cylinder. A conduit extending into the hollow cylinder is fixedly connected to the tray, and the lower end of the conduit passes through the outside of the tray and is connected to the water pump and the water supply pipe through a three-way valve.

[0012] Furthermore, the groundwater level detection device is composed of the following:

[0013] A sliding ring is vertically slidably sleeved on the hollow cylinder;

[0014] Sliding blocks, wherein a plurality of sliding blocks are connected to the sliding ring in a circular shape;

[0015] Sliding rods, wherein there are multiple sliding rods, and the multiple sliding rods are respectively fixedly connected to the sliding block;

[0016] Slideway, a vertically arranged slideway opened on each slide bar;

[0017] A floating member is vertically slidably connected to the slideway of each slide rod;

[0018] A hollow ring, wherein the hollow ring is fixedly connected between the lower ends of the plurality of floating members;

[0019] A touch switch is fixedly connected to the upper, middle and lower positions of one of the slideways;

[0020] A touch block is provided on a floating member in a slideway provided with a touch switch, and the touch block is used to cooperate with the touch switch.

[0021] Furthermore, the water seepage cylinder includes a cylindrical body, which is provided with multiple hydrophobic channels connected inside and outside. The two ends of each hydrophobic channel are respectively located on the inner and outer sides of the cylindrical body. The hydrophobic channel is an arched structure with the height of the two ends lower than the middle height.

[0022] Furthermore, a positioning screw is connected to the sliding block.

[0023] Furthermore, the water pumping and irrigation device includes:

[0024] A water pump is used to pump water out of the well;

[0025] The recharge water pipe is used to recharge water into the well, and the recharge water pipe is connected to the water source through a control water valve.

[0026] Furthermore, a protective device is installed on the upper part of the water well.

[0027] The beneficial effects of the utility model are: 1. It solves the problem of water seepage from the underground layer in the underground space;

[0028] 2. Pumping water in the rainy season and recharging water in the dry season can maintain a relatively stable groundwater level in the geological body, so that the geological body will not induce corresponding subsidence due to excessive fluctuations in the groundwater level in the rainy and dry seasons, thereby ensuring the stability of buildings and underground space structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall schematic diagram of the utility model;

[0030] Figure 2 This is the overall schematic diagram of the utility model (with the detection tube);

[0031] Figure 3 It is a cross-sectional view of the seepage collecting pipe of the utility model;

[0032] Figure 4 This is a structural diagram of the detection tube and water seepage tube parts of the utility model;

[0033] Figure 5 For this utility model Figure 4 The perspective view shown is a cross-sectional view;

[0034] Figure 6 For this utility model Figure 5 The perspective two sectional view shown;

[0035] Figure 7 This is a structural diagram of a specific underground water level detection device arranged inside the detection cylinder of the utility model;

[0036] Figure 8 This is a three-dimensional diagram of the water seepage tube of the utility model;

[0037] Figure 9 This is a sectional perspective view of the water seepage tube of the utility model;

[0038] Figure 10 for Figure 7 mid-section view;

[0039] Figure 11 for Figure 10 Enlarged view of part A in the middle;

[0040] Reference numerals

[0041] Water well 1; groundwater level detection device 2, sliding ring 201, sliding block 202, sliding rod 203, slide 204, floating part 205, hollow ring 206, touch switch 207, touch block 208; detection cylinder 3; seepage cylinder 4; tray 5; water-containing cavity 6; hollow cylinder 7; water-passing slot 8; conduit 9; three-way valve 10; water pump 11; water supply pipe 12; drainage channel 13; positioning screw 14; control water valve 15; seepage collecting pipe 16; geotextile 17; gauze 18; connecting rod 19, annular piece 20, well cover 21; recharging pipe 22. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-11 The specific implementation methods of the present invention are further described in detail.

[0043] When the embodiment is in use, the various monitoring points that need to be monitored are first selected in the underground space, and then a vertical shaft is drilled downward at the location of each monitoring point. The vertical shaft is a water well 1, so that the vertical shaft at least passes downward through the average groundwater level (preferably, groundwater always seeps into the water well 1), so that the groundwater can seep into the water well 1, and then each water well 1 is placed for a period of time to allow the groundwater to naturally penetrate into the vertical shaft.

[0044] Example 1, as Figure 1 As shown, a groundwater level detection device 2 is arranged in a groundwater well 1. In this embodiment, the groundwater level detection device 2 is a water level sensor, which can be an ultrasonic water level sensor or a pressure water level sensor. The water level sensor detects the water level in the well 1. The water level sensor is connected to the electrical control box.

[0045] Each well 1 is equipped with a pump 11 connected to an electrical control box. This pump 11 can pump water out of the well 1, and one end of the pump 11's drainage pipe is connected to an underground sewer. When the well 1 needs to be refilled, it can be connected to the municipal water supply pipe 12 through a water supply pipe 12. In this case, the municipal water supply pipe 12 serves as the water source. A control valve 15 is installed on the water supply pipe 12 and is connected to the electrical control box. This control valve 15 can be an electric valve, a solenoid valve, or a pneumatic valve. Alternatively, it can be connected to a water supply tank through a water supply pump, which is connected to the municipal water supply pipe. The pump 11 and the recharge pipe 22 form a water pumping and recharging device. The water supply tank can act as a buffer, and additives can be added to the water supply tank. For example, some additives can change the pH of the water body and be used to flush the pipes to prevent blockage. When rapid recharge is required, the water supply tank is sealed and a pressure pump is connected to the outside of the water supply tank. The pressure pump increases the pressure in the water supply tank, so that the water in the water supply tank is quickly recharged into the well, allowing the water in the well to quickly penetrate into the underground soil.

[0046] Because the groundwater level changes during the dry season or rainy season, or after the rainy season, the underground geology will change. The repeated changes in the underground geology will affect the geological stability.

[0047] The purpose of this utility model is to keep the groundwater level in the basement or underground space stable within a certain range, thereby stabilizing the humidity of the underground soil, ensuring the stability of the geological state, and ensuring its stability.

[0048] When the groundwater level rises due to rain, since well 1 is connected to the groundwater, the water level sensor can detect the rising water level in well 1. We set a water level interval, that is, the water level height interval in well 1. When the water level is within this water level interval, our pumping and irrigation device does not work. When the groundwater level rises and the water level in well 1 is higher than the upper limit of the water level interval, the water level sensor in well 1 detects that the water level has risen and is higher than the set upper limit of the water level interval. The electrical control box then controls the pump 11 to pump water into well 1 until the water level in well 1 is lowered to within the water level interval, and the pump 11 stops pumping. During the pumping process, when the water level in well 1 drops, groundwater continues to seep into well 1, replenishing the water in well 1. Therefore, when the pump pumps the water in well 1 to the water level interval and the water in well 1 remains stable, pumping stops. Of course, the pump 11 can also stop pumping water at the middle value of the water level range when the water level drops to this middle value. The purpose is to maintain the groundwater level within a constant range, maintaining groundwater level stability and, in turn, geological stability. By maintaining the groundwater level within the set water level range, we prevent geological instability or basement seepage caused by rising groundwater levels during the rainy season. The pumped water can be introduced into the reclaimed water system.

[0049] During the dry season, the groundwater level will drop. When the water level sensor detects that the water level in the well 1 has dropped to the lowest value in the water level interval, the recharge pipe 22 is started. Specifically, the water level sensor transmits the water level information to the electrical control box, which sends a signal to the control valve 15 to open the control valve 15. The recharge pipe 22 is then connected to the municipal water supply pipe. At this time, the recharge pipe 22 supplies water to the well 1. After the water level in the well 1 rises, the water in the well 1 will seep into the groundwater and replenish the groundwater until the water level in the well 1 returns to the water level interval. Then, the water supply to the well 1 is stopped. Of course, it is also possible to take another value within the water level interval to stop the water supply, such as the middle value of the water level interval, so that the water supply is stopped when the water level reaches the middle value of the water level interval. In this way, after the water supply is stopped, the water level can be allowed to change to a certain extent within the water level interval, avoiding frequent pumping and irrigation. This ensures that the groundwater level under the underground space drops, causing the geological structure to change.

[0050] like Figure 1-3 As shown, in order to increase the interactivity between groundwater and well 1, and to allow the water in well 1 to quickly infiltrate into the groundwater layer when it is recharged, a radial seepage collecting pipe 16 is set on the part of well 1 located in the groundwater, and liquid exchange is carried out between the seepage collecting pipe 16 and the external groundwater, and the seepage collecting pipe 16 is connected to the well 1. The structure of the seepage collecting pipe 16 is: it includes a hollow pipe, the outer wall of the hollow pipe is provided with a plurality of water-permeable holes, the outside of the hollow pipe is wrapped with a geotextile 17, and the outside of the geotextile 17 is wrapped with a gauze 18. The seepage collecting pipe 16 can be closed at both ends.

[0051] Groundwater can penetrate into the seepage collecting pipe 16 through the gauze 18 and geotextile 17, and the seepage collecting pipe 16 is connected to the well 1 and can interact with the water in the well 1. When water is injected into the well 1, the water in the well 1 can quickly penetrate into the underground soil layer through the seepage part at the lower end of the well 1, the seepage collecting pipe 16, the permeable geotextile 17 and the gauze 18.

[0052] The gauze 18 not only plays a filtering role, but also plays a role in protecting the permeable geotextile 17.

[0053] In this embodiment, a seepage collecting pipe 16 is provided to accelerate the interaction between the water well 1 and the groundwater, so that the rise and fall of the groundwater can be reflected more quickly in the water well 1, and the pumping or replenishing of water in the water well 1 can be quickly reflected in the groundwater layer.

[0054] Example 2: In this example, we introduce a detection tube 3 into the water well 1, such as Figure 2 As shown, the detection tube 3 is composed of a cylinder body and an annular piece 20 at the upper end. The annular piece can conveniently place the detection tube 3 on the upper platform of the water well 1. The lower end of the detection tube 3 is connected to the water seepage tube 4. The water seepage tube 4 connects the space inside and outside the cylinder through the hydrophobic channel 13 on the side. In order to prevent external soil particles or debris from entering the water seepage tube 4, the hydrophobic channel 13 on the water seepage tube 4 is an arched structure with low ends and a high middle. This allows water to penetrate while preventing soil particles and other debris from penetrating as much as possible. The hydrophobic channels 13 are arranged in an array along the axial direction of the water seepage tube 4. This can ensure that there are as many immersion channels as possible, prevent individual channels from being blocked and causing deviations in the results, and at the same time enable the inside and outside of the water seepage tube 4 to be connected in a timely manner.

[0055] like Figure 4 and Figure 5As shown, a tray 5 is connected to the lower end of the seepage cylinder 4. The tray 5 supports the hollow cylinder 7 (the tray 5 is a columnar structure with an upper opening, and the hollow cylinder 7 is fixed to the vertical side wall of the tray 5 by multiple connecting rods 19). One function of the hollow cylinder 7 is to support the groundwater level detection device 2 in this embodiment, so that the groundwater level detection device 2 remains vertically slidably connected to the hollow cylinder 7. At the same time, the tray 5 at the lower end of the hollow cylinder 7 serves to collect sediment. The tray 5 and the seepage cylinder 4 can be connected by threads, forming a structure in which the two can be detached. When there is too much sediment, the detection cylinder 3 can be pulled out, and then the tray 5 can be removed from the lower part of the seepage cylinder 4, so that the debris deposited in the tray 5 can be cleaned. The conduit 9 on the tray 5 extends upward into the hollow cylinder 7, and the inner diameter of the hollow cylinder 7 is larger than the outer diameter of the conduit 9. At the same time, a water notch 8 is opened at the lower end of the hollow cylinder 7. The height of the conduit 9 extending upward is higher than the height of the water notch 8. We set the conduit 9 to always be within the liquid level in the well 1, so that the lower half of the hollow cylinder 7, including the water notch 8, is always in the water. The external water will enter the hollow cylinder 7 through the water notch 8, and then the water in the hollow cylinder 7 will enter the conduit 9. In the process of water flowing from the well 1 into the conduit 9, it passes through a layer of filtration at the water notch 8, reducing the risk of impurities entering the conduit 9. One end of the conduit 9 is placed in the hollow cylinder 7, and the other end of the conduit 9 is connected to a three-way valve 10. The three-way valve 10 is an electrically controlled three-way valve, which is connected to the control box. The other two ends of the three-way valve 10 are connected to the underground waterway and the recharging pipe 22 respectively through the water pump 11. The municipal water supply pipe is connected to the recharge pipe 22, and the municipal water supply pipe is the source of the recharge water. A control water valve 15 is installed on the recharge pipe 22, and the control water valve 15 is connected to the electrical control box. The control water valve 15 can be an electric valve, a solenoid valve, or a pneumatic valve. When water needs to be supplied to the water well 1, the electrical control box controls the three-way valve 10 to connect the conduit 9 and the water supply pipe 12 (at this time, the conduit 9 and the water pump 11 are closed). When water needs to be pumped from the water well 1, the electrical control box controls the three-way valve 10 to connect the conduit 9 and the water pump 11 (at this time, the conduit 9 and the water supply pipe 12 are closed).

[0056] like Figure 6 、 7As shown in Figures 10 and 11, the groundwater level detection device 2 in this embodiment is composed of the following devices: a sliding ring 201, a sliding block 202, a sliding rod 203, a slide 204, a floating member 205, a hollow ring 206, a touch switch 207 and a touch block 208. Multiple sliding blocks 202 are connected to a sliding ring 201, and the sliding ring 201 is vertically slidably sleeved on the hollow cylinder 7. A slide rod 203 is fixedly connected to the free end of the sliding block 202, and a vertical slide 204 is opened on the slide rod 203. A floating member 205 is vertically slidably connected in the slide 204, and a hollow ring 206 is connected between the lower ends of multiple floating members 205. A touch switch 207 is fixedly connected to the upper, middle and lower positions of one of the slides 204 respectively; a touch block 208 is set on the floating member in the slide 204 where the touch switch 207 is set, and the touch block 208 is used to cooperate with the touch switch 207. The groundwater level detection device 2 in this embodiment needs to be positioned during use. The sliding ring 201 of the groundwater level detection device 2 can be positioned by means of a screw 14 (by opening a transparent threaded hole on the sliding ring 201 and then screwing in the screw 14. When positioning is required, the screw 14 is tightened so that the end of the screw 14 contacts the hollow cylinder 7 to form a positioning. When the position of the sliding ring 201 needs to be adjusted, the screw 14 is loosened and the position of the sliding ring 201 is moved. After it is moved into place, the screw 14 is tightened to reposition it.) Alternatively, the sliding ring 201 and the hollow cylinder 7 can be frictionally engaged to perform damping positioning. Both methods are acceptable. After the positioning of the sliding ring 201 is completed. In this embodiment, the floating member 205 connected to the vertically sliding sliding member 202 will float on the water surface. Since the lower end of the floating member 205 is a hollow ring 206, the hollow ring 206 will always be on the water surface under the action of buoyancy. The upper end of the floating member 205 is vertically slidably connected to the sliding rod 203. The upper end of the floating member 205 has a touch block 208. A touch switch 207 (15) is fixedly connected to the upper, middle and lower positions of the slideway 204 (12) of one of the sliding rods 203 respectively; the touch block 208 cooperates with the touch switch 207 to trigger the touch switch 207. The touch switch 207 is connected to the electric control box.

[0057] When the groundwater level rises during the rainy season, the hollow ring 206 and the floating member 205 will be pushed up until the touch block 208 on the floating member 205 contacts the touch switch 207 at the top. At this time, the contact switch at the top transmits the signal to the electric control box, and the electric control box controls the three-way valve 10 to connect the conduit 9 and the water pump 11, and then turns on the water pump 11 to pump out the water in the well 1 until the contact block touches the touch switch 207 in the middle position, at which time the pumping work stops.

[0058] When the groundwater level drops in the dry season, the hollow ring 206 will drop along with the water level, and the touch block 208 on the floating member 205 will also drop until the touch block 208 triggers the touch switch 207 at the bottom. The touch switch 207 at the bottom sends a signal to the electrical control box, and the electrical control box controls the three-way valve 10 to connect the conduit 9 and the water supply pipe 12, and at the same time controls the control water valve 15 on the water supply pipe 12 to be connected, and water is returned to the well 1 by connecting to the water from the municipal water pipe. The water in the well 1 reversely infiltrates into the groundwater layer until the water level in the well 1 rises, driving the touch block 208 to trigger the touch switch 207 in the middle position, and stopping the water supply.

[0059] By pumping water in the rainy season and replenishing it in the dry season, the groundwater layer is always within a controllable range regardless of whether the weather outside is dry or rainy, ensuring that the surrounding geological bodies are in a relatively stable state.

[0060] Example 3: Based on any of Examples 1-2, to enhance the safety of well 1, a protective device is installed at the top of well 1. This protective device can be a well house or a manhole cover 21. When installing the manhole cover, an annular groove can be opened around the wellhead or at the bottom of the manhole cover to accommodate an annular plate 20. To improve the filtration effect of the seepage pipe, a layer of geotextile 17 is wrapped around the outer layer of the seepage pipe, and a mesh 18 is wrapped around the outside of the geotextile 17. A permeable layer is installed at the bottom of well 1. This is prior art and will not be described in detail here.

Claims

1. A device for dynamically stabilizing the water level of an underground geological body, characterized in that: include, A plurality of water wells (1) are provided in the underground space; A groundwater level detection device (2), each water well (1) is provided with a groundwater level detection device (2), and the groundwater level detection device (2) is used to detect the water level in the water well (1); A water pumping device, used for recharging water into the well (1) or pumping water out of the well (1); An electric control box is used to receive a water level signal from a groundwater level detection device (2) and control the water supply well (1) to pump water or recharge water according to the water level signal; The bottom of the water well (1) is connected to a plurality of seepage collecting pipes (16) radiating toward the periphery of the water well (1), and liquid exchange is performed between the seepage collecting pipes (16) and external groundwater; The outside of the seepage collecting pipe (16) is wrapped with a geotextile (17) and a gauze (18) in sequence.

2. The device for dynamically stabilizing water level in an underground geological body according to claim 1, characterized in that: It also includes a detection cylinder (3) placed in the water well (1), the lower end of the detection cylinder (3) is connected to a water seepage cylinder (4), the lower end of the water seepage cylinder (4) is connected to a tray (5), the detection cylinder (3) and the water seepage cylinder (4) are connected to form a water-containing cavity (6), and the groundwater level detection device (2) is placed in the water-containing cavity (6).

3. The device for dynamically stabilizing water level in an underground geological body according to claim 2, characterized in that: A hollow cylinder (7) extending upward is fixed on the tray (5), a water channel opening (8) is provided on the side surface of the lower end of the hollow cylinder (7), a conduit (9) extending into the hollow cylinder (7) is fixedly connected to the tray (5), the lower end of the conduit (9) passes through the outside of the tray (5) and is connected to a water pump (11) and a water supply pipe (12) through a three-way valve (10).

4. The device for dynamically stabilizing water level in an underground geological body according to claim 3, characterized in that: The underground water level detection device (2) is composed of the following: A sliding ring (201) is vertically slidably sleeved on the hollow cylinder (7); Sliding blocks (202), wherein a plurality of sliding blocks (202) are connected to the sliding ring (201) in a circular manner; Sliding rods (203), there are multiple sliding rods (203), and the multiple sliding rods (203) are respectively fixedly connected to the sliding block (202); A slideway (204), a vertically arranged slideway (204) provided on each slide bar (203); A floating member (205) is vertically slidably connected to the slideway (204) of each slide bar (203); A hollow ring (206), the hollow ring (206) is fixedly connected between the lower ends of the plurality of floating members (205); A touch switch (207) is fixedly connected to the upper, middle and lower positions of one of the slideways (204); A touch block (208) is provided on a floating member in a slideway (204) provided with a touch switch (207), and the touch block (208) is used to cooperate with the touch switch (207).

5. The device for dynamically stabilizing water level in an underground geological body according to claim 2, characterized in that: The water seepage cylinder (4) comprises a cylindrical body, on which a plurality of hydrophobic channels (13) communicating with each other are provided. The ends of each hydrophobic channel (13) are respectively located on the inner and outer sides of the cylindrical body. The hydrophobic channel (13) is an arched structure, with the heights of the two ends being lower than the height of the middle portion.

6. The device for dynamically stabilizing water level in an underground geological body according to claim 4, characterized in that: The sliding block (202) is connected with a positioning screw (14).

7. The device for dynamically stabilizing water level in an underground geological body according to claim 1, characterized in that: The water pumping and irrigation device comprises: A water pump (11) for pumping water out of the well (1); The recharging pipe (22) is used to supply water to the water well (1), and the recharging pipe (22) is connected to the water source through the control water valve (15).

8. The device for dynamically stabilizing water level in an underground geological body according to claim 1, characterized in that: A protective device is installed on the upper part of the water well (1).

9. The device for dynamically stabilizing water level in an underground geological body according to claim 8, characterized in that: The protective device shown is a well cover covering the upper end of the well.

Images