Drainage system for ensuring stability of underground water seepage

Abstract

The invention belongs to the technical field of underground seepage drainage, and particularly relates to a drainage system capable of guaranteeing underground water seepage stability, which comprises a drainage layer, the drainage layer is composed of a concrete layer at the uppermost end, a drainage groove in the middle and a waterproof plate at the bottom, and the drainage layer is provided with flow guide mechanisms which are symmetrically arranged. By arranging the primary filtering mechanism and the filtering mechanism, upstream water is drained in advance and discharged in a detour mode, on one hand, it is guaranteed that a drainage layer is not blocked, the stability of automatic drainage is guaranteed, on the other hand, the problem of blocking and jamming cannot occur when a liquid pump is started, and then the safety of a whole mine, an underground space, a pollution remediation site and the like is guaranteed; the fixing mechanism is arranged to ensure the stability when the filtering mechanism is mounted on the sliding mounting plate, and the arranged drainage tank automatically realizes drainage when the water level is too high, so that the upstream water flow cannot be accumulated too much, and the upstream excessive water flow is prevented from eroding a mine, an underground space, polluting a remediation site and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of underground seepage water drainage, and particularly to a water drainage system for ensuring stable groundwater seepage. Background Art

[0002] The water drainage system for groundwater seepage is an engineering facility used to control the flow of groundwater and avoid damage to the site structure caused by excessive water accumulation. It is usually applied to sites such as coal mines, buildings, underground spaces, tunnels, solid waste disposal, and soil pollution remediation with rich water resources above the flow field to ensure the dryness and safety of these areas.

[0003] Taking an underground coal mine as an example, the prerequisite conditions and necessity for inventing this device are described. An underground coal mine refers to the part of underground coal mining operations, which enters the underground mining area through vertical shafts, inclined shafts or adits for coal mining. Underground, water disasters caused by groundwater seepage are important factors affecting the green mining and safe production of coal mines, usually caused by the following reasons:

[0004] 1. Geological conditions: Geological fracture structures, the distribution of aquifers (confining layers), and water filling and recharge conditions in coal mining areas are important factors determining groundwater seepage. If there are water-conducting fissures, permeable layers, or faults and karst channels in the rock strata in the mining area, groundwater may penetrate into the mine;

[0005] 2. Precipitation and climate factors: Due to heavy rainfall or other extreme climate events, a large amount of water may accumulate upstream of the mine or other places and cannot be drained in time, thus penetrating through the rock strata or directly flowing into the mine interior;

[0006] 3. Mining activities: During the coal mining process, the original hydrogeological structure of the overlying rock is damaged, resulting in groundwater seeping into the mined-out area of the mine.

[0007] Therefore, water disasters and mine geological disasters caused by groundwater seepage during coal mining are the problems we need to solve. Groundwater seepage refers to the outward flow of groundwater through pores in soil or rock, and its flow pattern is affected by various factors such as the permeability of the soil, changes in the groundwater level, and the pressure of the surrounding environment. Setting waterproof barriers or water blocking facilities in the water seepage area of the mine can effectively reduce groundwater seepage and prevent frequent changes in the water level, but the diversion layer set at the bottom of traditional underground coal mines is prone to blockage, affecting the discharge of seepage water. To solve the above problems, we propose a water drainage system for ensuring stable groundwater seepage. This water drainage system provides a safety guarantee for preventing groundwater from penetrating into the underground space in advance and causing water disasters, etc., and also provides strong support for realizing the green and sustainable development of ecologically fragile mining areas in the western region. Summary of the Invention

[0008] The object of the present invention is to provide a hydrophobic system that ensures the stability of groundwater seepage, so as to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above object, the present invention adopts the following technical solution: a hydrophobic system that ensures the stability of groundwater seepage, including a hydrophobic layer, the hydrophobic layer is composed of a concrete layer at the uppermost end, a drainage groove in the middle, and a waterproof board at the bottom. The hydrophobic layer is provided with a symmetrically arranged diversion mechanism. The diversion mechanism includes a water retaining plate fixed on the hydrophobic layer. The outer wall of the water retaining plate is fixedly connected with a drainage groove. An inlet communicating with the drainage groove is opened at the top of the hydrophobic layer. The outer wall of the drainage groove is fixedly connected with a water guide plate. A sliding groove is opened on the water guide plate. A sliding mounting plate is slidably inserted in the sliding groove. Circular openings one are opened on both sides of the water guide plate. Circular openings two corresponding to the circular openings one are opened on the sliding mounting plate. An initial filtering mechanism is installed in the circular opening one. A filtering mechanism is installed in the circular opening two. A groove is opened on the outer wall of the sliding mounting plate. A fixing mechanism for fixing the filtering mechanism is arranged in the groove.

[0010] In the above-mentioned hydrophobic system that ensures the stability of groundwater seepage, the initial filtering mechanism includes a filter screen frame and a pebble layer filled inside the filter screen frame. The filtering mechanism includes a filter screen frame and filter cotton fixed inside the filter screen frame.

[0011] In the above-mentioned hydrophobic system that ensures the stability of groundwater seepage, the fixing mechanism includes a movable opening communicated with the circular opening two on the inner wall of the groove, a guide plate fixed on the inner wall of the groove, and a partition plate fixed between the inner walls of the two sides of the groove. A trapezoidal plate is slidably sleeved at the lower end of the guide plate. An activity groove is opened at the connection between the trapezoidal plate and the guide plate. A return spring is fixedly connected between the lower end of the guide plate and the bottom of the activity groove. An activity abutting column is slidably arranged in the movable opening. A notch is opened on the activity abutting column. The lower end of the trapezoidal plate is inserted into the notch. A telescopic spring is fixedly connected between the end of the activity abutting column and the partition plate.

[0012] In the above-mentioned hydrophobic system that ensures the stability of groundwater seepage, a pressing opening is opened on the outer wall at the upper end of the trapezoidal plate.

[0013] In the above-mentioned hydrophobic system that ensures the stability of groundwater seepage, the trapezoidal plate is arranged in a right trapezoid.

[0014] In the above hydrophobic system for ensuring stable groundwater seepage, symmetrically arranged water storage tanks are provided in the hydrophobic tank. The water storage tanks are communicated with the water inlet. A downstream pipe communicated with the water storage tanks is provided at the bottom of the hydrophobic tank. The two water storage tanks are communicated through a connecting groove. A water retaining protrusion arranged in an isosceles trapezoid shape is integrally formed at the bottom of the connecting groove. An installation opening is provided in the middle of the water retaining protrusion. A trigger is arranged in the installation opening. A liquid pump is arranged in the water storage tank on the left side. The liquid pump is electrically connected with the trigger. The output end of the liquid pump is connected with a drain pipe whose end is located outside the hydrophobic layer.

[0015] Compared with the existing technology, the advantages of the present hydrophobic system for ensuring stable groundwater seepage are as follows:

[0016] 1. The water flow upstream of the mining area seeps through the first round opening into the second round opening, and the upstream water is filtered through the pebble layer and the filter cotton in sequence. After the upstream water is filtered, it enters the hydrophobic tank through the water guide groove, and the water body can be discharged to the downstream or the municipal drain pipe through the downstream pipe. The stability of the drainage of the hydrophobic layer is ensured through multiple-stage filtration.

[0017] 2. A fixing mechanism is provided. When installing in sequence, the filtration mechanism needs to be fixed. During installation, first manually press down the trapezoidal plate. The trapezoidal plate squeezes the movable abutting post to move outwardly. After placing the filtration mechanism into the second round opening, place it on the trapezoidal plate. Under the reverse elastic force of the return spring, the trapezoidal plate moves upward. Under the elastic force of the telescopic spring, the movable abutting post moves into the second round opening and contacts and presses tightly against the outer wall of the filter mesh frame to prevent the filter mesh frame from falling off.

[0018] 3. The upstream water entering the hydrophobic tank is discharged to the downstream or the municipal pipeline through the downstream pipe. When there is too much upstream water, the water volume in the hydrophobic tank will increase greatly, and the external water cannot be quickly discharged into the hydrophobic tank. To prevent the mine from being flooded, at this time, the water body will cross the highest point of the water retaining protrusion to press the trigger, starting the liquid pump, and discharging the water in the hydrophobic tank to the municipal pipeline through the drain pipe to ensure the safety of the mining area or sites such as pollution remediation.

[0019] In summary, the present invention filters the upstream water by providing a primary filtration mechanism and a filtration mechanism. On the one hand, it ensures that the hydrophobic layer will not be blocked, ensuring the stability of automatic drainage. On the other hand, there will be no problem of blockage and jamming when the liquid pump starts, thereby ensuring the stability of the mine structure. A fixing mechanism is provided to ensure the stability when the sliding mounting plate installs the filtration mechanism. The provided hydrophobic tank automatically drains water when the water level is too high, ensuring that the upstream water flow will not be excessive and preventing the upstream water from eroding the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a hydrophobic system for ensuring stable groundwater seepage proposed by the present invention;

[0021] Figure 2 Schematic structural view of the sliding mounting plate in a hydrophobic system for ensuring stable groundwater seepage proposed by the present invention;

[0022] Figure 3 Schematic structural view of the fixing mechanism in a hydrophobic system for ensuring stable groundwater seepage proposed by the present invention;

[0023] Figure 4 Side view of the connection between the water baffle and the water guide groove in a hydrophobic system for ensuring stable groundwater seepage proposed by the present invention;

[0024] Figure 5 Schematic structural view of the hydrophobic groove in a hydrophobic system for ensuring stable groundwater seepage proposed by the present invention.

[0025] In the figure: 1 hydrophobic layer, 2 water baffle, 3 water guide groove, 4 water guide plate, 5 sliding mounting plate, 6 circular opening one, 7 circular opening two, 8 groove, 9 movable opening, 10 movable abutting column, 11 notch, 12 partition board, 13 telescopic spring, 14 guide plate, 15 trapezoidal plate, 16 pressing opening, 17 downstream pipe, 18 drain pipe, 19 water storage tank, 20 connecting groove, 21 water baffle protrusion, 22 trigger. Detailed implementation manners

[0026] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention.

[0027] Refer to Figures 1 - 5 , a hydrophobic system for ensuring stable groundwater seepage, including a hydrophobic layer 1, the hydrophobic layer 1 is composed of a concrete layer at the uppermost end, a hydrophobic groove in the middle, and a waterproof plate at the bottom. The hydrophobic layer 1 is provided with symmetrically arranged diversion mechanisms. The diversion mechanism includes a water baffle 2 fixed on the hydrophobic layer 1. The outer wall of the water baffle 2 is fixedly connected with a water guide groove 3. An inlet communicating with the water guide groove 3 is opened at the top of the hydrophobic layer 1. The outer wall of the water guide groove 3 is fixedly connected with a water guide plate 4. A sliding groove is opened on the water guide plate 4, and a sliding mounting plate 5 is slidably inserted in the sliding groove. Circular openings one 6 are opened on both sides of the water guide plate 4. Circular openings two 7 corresponding to the circular openings one 6 are opened on the sliding mounting plate 5. A primary filtration mechanism is installed in the circular opening one 6. The primary filtration mechanism includes a filter screen frame and a pebble layer filled inside the filter screen frame. The filtration mechanism includes a filter screen frame and filter cotton fixed inside the filter screen frame. The upstream seepage water outside the mine enters into the circular opening two 7 through the circular opening one 6, and the upstream water is filtered in sequence through the pebble layer and the filter cotton. After the upstream water is filtered, it enters into the hydrophobic groove through the water guide groove 3. The water body can be discharged to the downstream or the municipal drain pipe through the downstream pipe 17;

[0028] The figure only shows the structure of a single group of symmetric water guide plates 4. In actual use, the quantity can be adjusted according to actual needs.

[0029] When draining groundwater seepage in a coal mine or building, the hydrophobic layer 1 is buried in the ground. Furthermore, the hydrophobic layer 1 can be set to a shape that fits the mine, the top or the side wall of the building. The downstream pipe 17 is buried underground and can be connected to the municipal pipeline or an additional drainage pipeline for diversion. The water retaining plate 2 is buried inside the bottom of the mine or building. Supporting concrete or the soil structure of the mine and the outside of the building are poured between the water retaining plates 2. The underground seepage outside the mine or the building flows in through the circular port 6 and is then discharged through the hydrophobic layer 1 and the downstream pipe 17 to complete the drainage of the groundwater.

[0030] A filtering mechanism is installed in the circular opening 7, a groove 8 is provided on the outer wall of the sliding mounting plate 5, and a fixing mechanism for fixing the filtering mechanism is provided in the groove 8. The fixing mechanism includes a movable opening 9 opened on the inner wall of the groove 8 and communicating with the circular opening 7, a guide plate 14 fixed on the inner wall of the groove 8, and a partition 12 fixed between the inner walls on both sides of the groove 8. The lower end of the guide plate 14 is slidingly sleeved with a trapezoidal plate 15. The trapezoidal plate 15 is set in a right-angled trapezoidal shape. One end of the trapezoidal plate 15 is inserted into the notch 11. As the trapezoidal plate 15 moves up and down, the inclined surface of the trapezoidal plate 15 contacts the inner wall of the notch 11, pushing the movable column 10 to move back and forth;

[0031] A pressing port 16 is provided on the outer wall of the upper end of the trapezoidal plate 15. The pressing port 16 is provided to facilitate the staff to press. A movable groove is provided at the connection between the trapezoidal plate 15 and the guide plate 14. A reset spring is fixedly connected between the lower end of the guide plate 14 and the bottom of the movable groove. A movable anti-pillar 10 is slidingly provided in the movable port 9. A notch 11 is provided on the movable anti-pillar 10. The lower end of the trapezoidal plate 15 is inserted into the notch 11. A telescopic spring 13 is fixedly connected between the end of the movable anti-pillar 10 and the partition 12. After the filter frame equipped with filter cotton is installed in the circular port 2 7, the sliding mounting plate 5 is slid downward and inserted into the slide groove. At this time, the circular port 1 6 and the circular port 2 7 are correspondingly arranged ( Figure 1 The figure shows the state where the sliding mounting plate 5 is pulled up), and the upstream water can be filtered through the circular opening 1 6 and the circular opening 2 7. Since multiple sets of filtering mechanisms are set, the filtering mechanisms need to be fixed when they are installed in sequence. During installation, the trapezoidal plate 15 is pressed downward manually, and the trapezoidal plate 15 squeezes the movable anti-pillar 10 to move outward. After the filtering mechanism is placed in the circular opening 2 7, it is placed on the trapezoidal plate 15. Under the reverse elastic force of the reset spring, the trapezoidal plate 15 moves upward. Under the elastic force of the telescopic spring 13, the movable anti-pillar 10 moves into the circular opening 2 7, contacts and presses against the outer wall of the filter frame to prevent the filter frame from falling. Furthermore, a fixed opening matching the movable anti-pillar 10 can be provided on the outer wall of the filter frame. After the movable anti-pillar 10 is inserted into the fixed opening, the filter frame is more stable.

[0032] There are symmetrically arranged water storage tanks 19 in the water drainage tank. The water storage tanks 19 are communicated with the water inlet. A downstream pipe 17 communicated with the water storage tanks 19 is arranged at the bottom of the water drainage tank. The two water storage tanks 19 are communicated through a connecting groove 20. A water retaining projection 21 arranged in an isosceles trapezoid shape is integrally formed at the bottom of the connecting groove 20. An installation opening is formed in the middle of the water retaining projection 21, and a trigger 22 is arranged in the installation opening. A liquid pump is arranged in the water storage tank 19 on the left side. The liquid pump is electrically connected with the trigger 22. The output end of the liquid pump is connected with a drain pipe 18 whose end is located outside the water drainage layer 1. The upstream water entering the water drainage tank is discharged to the downstream or the municipal pipeline through the downstream pipe 17. When the upstream water is excessive, the water volume in the water drainage tank will increase greatly, and the external water cannot be quickly discharged into the water drainage tank. To prevent the mine from being flooded, at this time, the water body will cross the highest point of the water retaining projection 21 to press the trigger 22, so that the liquid pump is started, and the water in the water drainage tank is discharged to the municipal pipeline or other drainable areas through the drain pipe 18, ensuring the safety of the entire mine or underground space.

Claims

1. A hydrophobic system for ensuring stable groundwater seepage, comprising a hydrophobic layer (1), characterized in that, The hydrophobic layer (1) is composed of a concrete layer at the uppermost end, a water drainage groove in the middle, and a waterproof board at the bottom. The hydrophobic layer (1) is provided with a symmetrically arranged diversion mechanism. The diversion mechanism includes a water baffle (2) fixed on the hydrophobic layer (1). The outer wall of the water baffle (2) is fixedly connected with a water guide groove (3). The top of the hydrophobic layer (1) is provided with a water inlet communicating with the water guide groove (3). The outer wall of the water guide groove (3) is fixedly connected with a water guide plate (4). The water guide plate (4) is provided with a sliding groove. A sliding mounting plate (5) is slidably inserted in the sliding groove. Circular openings one (6) are provided on both sides of the water guide plate (4). Circular openings two (7) corresponding to the circular openings one (6) are provided on the sliding mounting plate (5). An initial filtration mechanism is installed in the circular opening one (6), and a filtration mechanism is installed in the circular opening two (7). A groove (8) is provided on the outer wall of the sliding mounting plate (5). A fixing mechanism for fixing the filtration mechanism is provided in the groove (8).

2. The hydrophobic system for ensuring the stability of groundwater seepage according to claim 1, characterized in that, The initial filtration mechanism includes a filter screen frame and a pebble layer filled inside the filter screen frame. The filtration mechanism includes a filter screen frame and filter cotton fixed inside the filter screen frame.

3. A hydrophobic system for ensuring stable groundwater seepage according to claim 1, characterized in that, The fixing mechanism includes a movable opening (9) communicating with the circular opening two (7) on the inner wall of the groove (8), a guide plate (14) fixed on the inner wall of the groove (8), and a partition plate (12) fixed between the inner walls on both sides of the groove (8). A trapezoidal plate (15) is slidably sleeved at the lower end of the guide plate (14). An activity groove is provided at the connection between the trapezoidal plate (15) and the guide plate (14). A return spring is fixedly connected between the lower end of the guide plate (14) and the bottom of the activity groove. An activity abutting column (10) is slidably arranged in the movable opening (9). A notch (11) is provided on the activity abutting column (10). The lower end of the trapezoidal plate (15) is inserted into the notch (11). A telescopic spring (13) is fixedly connected between the end of the activity abutting column (10) and the partition plate (12).

4. A hydrophobic system for ensuring stable groundwater seepage according to claim 3, characterized in that, A pressing opening (16) is provided on the outer wall of the upper end of the trapezoidal plate (15).

5. A hydrophobic system for ensuring stable groundwater seepage according to claim 3, characterized in that, The trapezoidal plate (15) is arranged in a right trapezoid shape.

6. A hydrophobic system for ensuring stable groundwater seepage according to claim 1, characterized in that, Symmetrically arranged water storage tanks (19) are provided in the water drainage groove. The water storage tanks (19) are communicated with the water inlet. A downstream pipe (17) communicating with the water storage tanks (19) is provided at the bottom of the water drainage groove. The two water storage tanks (19) are communicated through a connection groove (20). A water retaining protrusion (21) arranged in an isosceles trapezoid shape is integrally formed at the bottom of the connection groove (20). An installation opening is provided in the middle of the water retaining protrusion (21). A trigger (22) is provided in the installation opening. A liquid pump is arranged in the water storage tank (19) on the left side. The liquid pump is electrically connected with the trigger (22). The output end of the liquid pump is connected with a drain pipe (18) whose end is located outside the hydrophobic layer (1).

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