High-strength plugging device for precipitation well

Abstract

The application discloses a high-strength plugging device for a dewatering well, which comprises a dewatering well, a bottom cover, a fixing part arranged on the bottom cover and used for fixing the bottom cover on the dewatering well, a reinforcing part arranged at the bottom of the dewatering well, a top cover arranged in the dewatering well, a pouring groove formed between the top cover and the bottom cover and used for pouring concrete from outside, a pouring hole arranged on the top cover and used for communicating with the pouring groove, a sealing cover arranged in the dewatering well, a reserved groove arranged between the sealing cover and the top cover and used for allowing the top cover to slide when the concrete in the pouring groove is solidified, a sealing part arranged at the bottom of the sealing cover and used for improving the sealing property between the sealing cover and the top cover when the top cover slides to a certain distance, and a positioning part arranged on the sealing cover and used for fixing the sealing cover in the dewatering well. The application solves the problem that the dewatering well is not tightly plugged in the prior art, and thus the groundwater pressure is spouted to cause the sealing failure of the dewatering well and the seepage phenomenon.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of precipitation well plugging tool, in particular to a high-strength precipitation well plugging device. BACKGROUND

[0002] The precipitation well refers to a small well for draining water in a mine tunnel or a stope. During the mining process, the water in the stope or tunnel is guided into the precipitation well at regular intervals along the water ditch, and then flows into the water sump through the underground tunnel connected with the precipitation well, and then is pumped to the ground through a special drainage well or directly flows out of the ground through the drainage tunnel. In the later construction, the precipitation well needs to be plugged, and in the prior art, the opening of the precipitation well is usually plugged, which is easy to cause leakage at the opening of the precipitation well when subjected to the impact of the underground water pressure. SUMMARY

[0003] In view of the deficiencies in the prior art, the present application provides a high-strength precipitation well plugging device to solve the problem of leakage caused by the failure of the precipitation well sealing when the underground water pressure is spouted due to the poor sealing of the precipitation well during the later construction.

[0004] To achieve the above-mentioned purpose, the present application provides a high-strength precipitation well plugging device, comprising a precipitation well, a bottom cover for being installed at the bottom of the precipitation well, a fixing member provided on the bottom cover for fixing the bottom cover on the precipitation well, a reinforcing member provided at the bottom of the precipitation well for improving the stability of the bottom cover in the precipitation well, a top cover provided in the precipitation well, the top cover being arranged opposite to the bottom cover and forming a pouring groove between the two for pouring concrete from outside, a pouring hole provided on the top cover for communicating with the pouring groove, a sealing cover provided in the precipitation well, a reserved groove provided between the sealing cover and the top cover for allowing the top cover to slide when the concrete in the pouring groove solidifies, a sealing member provided at the bottom of the sealing cover for improving the sealing property between the sealing cover and the top cover when the top cover slides to a certain distance, and a positioning member provided on the sealing cover for fixing the sealing cover in the precipitation well.

[0005] The technical scheme has the beneficial effects that when the dewatering well needs to be plugged, the construction personnel first fix the bottom cover near the bottom opening of the dewatering well through the fixing member, then fix the sealing cover near the opening of the dewatering well through the positioning member, at this time, the pouring groove is formed between the bottom cover and the top cover, then the operator pours the concrete fluid into the pouring groove through the pouring hole on the top cover until the pouring groove is filled with the concrete fluid, when the concrete fluid in the pouring groove gradually solidifies, the force is released, the moment of force gradually pushes the top cover to move towards the sealing cover, at this time, the top cover slides towards the reserved groove until the top cover contacts the sealing member, so that the sealing between the top cover and the sealing cover is improved, the concrete block formed by the solidification of the concrete fluid can seal the dewatering well and improve the impact resistance of the bottom cover, so that the bottom cover can withstand the high impact force when the underground water gushes, the sealing between the bottom cover and the dewatering well is improved, and the sealing between the top cover and the sealing cover is greatly improved due to the pre-stress of the top cover, so that the plugging property of the dewatering well is improved.

[0006] The application further provides that the sealing member comprises a sealing ring arranged at the bottom of the sealing cover, the bottom surface of the sealing ring is arranged in gap cooperation with the end surface of the top cover, the outer peripheral wall of the sealing ring is arranged in abutting cooperation with the inner peripheral wall of the dewatering well, the bottom of the sealing ring is provided with a first abutting ring, and the first abutting ring is arranged in a flared shape from the sealing cover to the top cover.

[0007] The technical scheme has the beneficial effects that when the concrete fluid solidifies, the pre-stress applied to the top cover pushes the top cover to move, so that the second abutting ring on the top cover gradually abuts against the inner peripheral wall of the first abutting ring, so as to realize the expansion cooperation between the first abutting ring and the second abutting ring, improve the sealing strength between the first abutting ring and the second abutting ring, and improve the sealing between the top cover and the sealing cover, so as to ensure that the underground water does not overflow from the dewatering well to the outside, thereby improving the sealing property of the dewatering well, and the first abutting ring and the second abutting ring can be made of sealing rubber material, so as to improve the sealing property and expansion property between the first abutting ring and the second abutting ring on the basis of the semi-elastic and semi-rigid material.

[0008] The invention further comprises: the positioning component including a positioning ring disposed in the dewatering well, the positioning ring being positioned above the sealing cover, the positioning ring having a plurality of first through holes circumferentially extending through it, the sealing cover having a second through hole corresponding to each of the first through holes, each of the first through holes having a connecting rod threadedly connected to it for threaded engagement with its adjacent second through hole, the inner circumferential wall of the dewatering well opening having a plurality of first positioning holes circumferentially extending through it, the positioning ring having a second positioning hole corresponding to each of the first positioning holes, each of the second positioning holes having a positioning rod threadedly connected to it for threaded engagement with its corresponding first positioning hole.

[0009] The advantages of adopting the above technical solution are as follows: When it is necessary to fix the sealing cover, the construction personnel can use the connecting rod to engage with the first and second through holes respectively to achieve a fixed connection between the sealing cover and the positioning ring. Then, the positioning rod can be used to engage with the first and second positioning holes respectively to fix the positioning ring in the dewatering well. The above technical settings ensure that the sealing cover will not shift or shake when subjected to the prestressing impact of concrete fluid, thus ensuring the sealing performance of the sealing cover in the dewatering well.

[0010] The invention further comprises: a plurality of reinforcing ribs arranged circumferentially on the inner peripheral wall of the dewatering well, all of which are located in the injection groove; the radial cross-section of the reinforcing ribs is L-shaped; the reinforcing ribs are composed of horizontal and vertical rods; a plurality of expansion rings are provided in the injection groove; the expansion rings are made of elastic material; the plurality of expansion rings are coaxially arranged; each expansion ring has an expansion hole through which the vertical rod passes; the vertical rods of the plurality of reinforcing ribs pass through the expansion hole; the inner wall of each vertical rod abuts against the inner peripheral wall of the expansion hole; and the outer peripheral walls of the plurality of expansion rings abut against the inner peripheral wall of the dewatering well.

[0011] The advantages of adopting the above technical solution are as follows: Before installing the top cover, the operator installs several reinforcing ribs circumferentially along the inner wall of the dewatering well, and then fits several expansion rings onto the vertical rods, so that all the vertical rods pass through the expansion holes. The expansion rings are made of a semi-elastic and semi-rigid material, which causes the expansion rings to deform and generate force on the inner wall of the dewatering well. That is, the outer wall of the expansion rings and the inner wall of the dewatering well are set to abut against each other, thereby achieving a seal between the expansion rings and the inner wall of the dewatering well. After the concrete fluid is poured, the concrete fluid will wrap around the reinforcing ribs and expansion rings, thus forming a whole. The block formed by the solidification of the concrete fluid achieves a seal between the expansion rings and the inner wall of the dewatering well, improving the sealing performance. The setting of the reinforcing ribs in the above technology can also improve the strength of the concrete block, thereby improving the load-bearing capacity of the concrete block and ensuring that the high impact force exerted by the external groundwater surge will not cause the concrete block to crack.

[0012] The present invention further includes: a breaking cone for buffering the pressure of external groundwater gushing at the bottom of the bottom cover, wherein the breaking cone has a conical radial cross-section and its sharp end faces the bottom opening of the dewatering well.

[0013] The advantages of adopting the above technical solution are: the radial cross section of the breaking cone is set in a cone shape and its sharp end is set towards the bottom opening of the dewatering well, so that the high-pressure water flow of the groundwater gushing is diverted when it comes into contact with the breaking cone, thereby reducing the impact of the high-pressure water flow on the bottom cover, thus avoiding damage to the bottom cover and causing sealing failure, and at the same time reducing the impact on the concrete block.

[0014] The present invention further comprises: a casting cavity is provided in the hollow of the breaking cone, and a transition hole is provided between the casting cavity and the grouting groove.

[0015] The advantage of adopting the above technical solution is that the setting of the pouring cavity in the above technology allows the concrete fluid in the grouting tank to flow into the transition hole, thereby realizing the solidification of the concrete fluid in the pouring cavity and thus improving the overall strength of the breaking cone.

[0016] The present invention further comprises: a plurality of sharp protrusions arranged at the bottom of the bottom cover, and the plurality of sharp protrusions being arranged circumferentially around the breaking cone.

[0017] The advantage of adopting the above technical solution is that the setting of several sharp protrusions in the above technology can also play a diversion role, thereby reducing the high impact force exerted by the external groundwater gushing.

[0018] The present invention further includes: a plurality of connecting grooves are provided at the edge of the bottom cover; a plurality of pre-embedded holes are arranged circumferentially on the inner peripheral wall of the bottom of the dewatering well; the positions of the plurality of pre-embedded holes correspond one-to-one with the positions of the plurality of connecting grooves; and a connecting bolt for threaded engagement with the corresponding and adjacent pre-embedded hole is threadedly connected to the inner peripheral wall of each connecting groove.

[0019] The advantages of adopting the above technical solution are: In the above technology, construction personnel can fix the bottom cover in the dewatering well by connecting bolts and the threaded engagement of the pre-embedded holes and connecting grooves, thereby improving the stability of the bottom cover in the dewatering well. At the same time, the high impact on the bottom cover can be guided to the dewatering well through the connecting bolts, thereby improving the service life of the bottom cover. In the above technology, after the connecting bolts are connected, the operators can seal the connecting groove by welding an external iron plate to the opening of the connecting groove, thereby preventing concrete from flowing to the bottom of the dewatering well through the connecting groove during pouring.

[0020] The present invention further includes the following: the reinforcing member includes several steel meshes disposed at the bottom of the dewatering well, and the steel meshes are stacked in layers.

[0021] The advantage of adopting the above technical solution is that the steel mesh in the above technology improves the stability of the bottom cover in the dewatering well and plays a supporting role. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the present invention;

[0023] Figure 2 This is a three-dimensional view of the invention after the removal of the precipitation wells;

[0024] Figure 3 for Figure 2 A sectional view;

[0025] Figure 4 This is a three-dimensional view of the present invention after removing the dewatering wells and concrete blocks. Detailed Implementation

[0026] This invention provides a high-strength sealing device for a dewatering well 1, comprising a dewatering well 1, a bottom cover 2 for installation at the bottom of the dewatering well 1, a fixing member for fixing the bottom cover 2 to the dewatering well 1, a reinforcing member for improving the stability of the bottom cover 2 in the dewatering well 1, a top cover 3 disposed in the dewatering well 1, the top cover 3 being disposed opposite to the bottom cover 2 and forming a grouting groove 11 for external concrete pouring between them, the top cover 3 being provided with a grouting hole 31 for communicating with the grouting groove 11, a sealing cover 4 disposed in the dewatering well 1, a reserved groove for the top cover 3 to slide when the concrete in the grouting groove 11 solidifies between the sealing cover 4 and the top cover 3, and a useful... A sealing element is provided to improve the sealing performance between the sealing cover 4 and the top cover 3 when the top cover 3 slides to a certain distance. The sealing cover 4 is provided with a positioning element for fixing the sealing cover 4 in the dewatering well 1. The sealing element includes a sealing ring 41 provided at the bottom of the sealing cover 4. The bottom surface of the sealing ring 41 is clearance-fitted with the end face of the top cover 3. The outer peripheral wall of the sealing ring 41 is abutted with the inner peripheral wall of the dewatering well 1. A first abutting ring 42 is provided at the bottom of the sealing ring 41. The first abutting ring 42 is flared from the direction of the sealing cover 4 to the direction of the top cover 3. A second abutting ring 32 is provided on the end face of the top cover 3 for abutting with the inner peripheral wall of the first abutting ring 42 when the top cover 3 slides to a certain distance. The positioning element includes a positioning element provided in the dewatering well 1. Ring 5, the positioning ring 5 is located above the sealing cover 4. The positioning ring 5 has several first through holes 51 circumferentially extending through it. The sealing cover 4 has a second through hole 43 corresponding to each of the first through holes 51. Each first through hole 51 is threaded with a connecting rod 52 for threaded engagement with its adjacent second through hole 43. The inner circumferential wall of the dewatering well 1 has several first positioning holes 12 circumferentially extending through it. The positioning ring 5 has a second positioning hole 53 corresponding to each of the first positioning holes 12. Each second positioning hole 53 is threaded with a positioning rod 54 for threaded engagement with its corresponding first positioning hole 12. The inner circumferential wall of the dewatering well 1 has several reinforcing ribs 6 arranged circumferentially, all located at the injection point. The reinforcing rib 6 is arranged in the groove 11 with an L-shaped radial cross-section. The reinforcing rib 6 is composed of horizontal and vertical bars. Several expansion rings 61, made of elastic material, are provided in the grouting groove 11. These expansion rings 61 are coaxially arranged and have expansion holes 62 through which the vertical bars pass. The vertical bars of the reinforcing ribs 6 all pass through the expansion holes 62, and the inner wall of each vertical bar abuts against the inner circumferential wall of the expansion hole 62. The outer circumferential walls of the expansion rings 61 abut against the inner circumferential wall of the dewatering well 1. A breaking cone 21, used to buffer the pressure of external groundwater gushing, is provided at the bottom of the bottom cover 2. The breaking cone 21 has a conical radial cross-section with its sharp end facing the bottom opening of the dewatering well 1.The breaking cone 21 has a hollow casting cavity 22, and a transition hole connects the casting cavity 22 to the grouting groove 11. The bottom cover 2 has several sharp protrusions 23 arranged circumferentially around the breaking cone 21. Several connecting grooves 24 are provided at the edge of the bottom cover 2. Several pre-embedded holes 13 are arranged circumferentially on the inner wall of the bottom of the dewatering well 1, with each pre-embedded hole 13 corresponding to a connecting groove 24. Each connecting groove 24 has a threaded connecting bolt 25 threaded to its corresponding adjacent pre-embedded hole 13. The reinforcing member includes several steel meshes 7 stacked at the bottom of the dewatering well 1.

[0027] The concrete block after the concrete fluid has solidified as described above is identified as 8 in the accompanying drawings.

[0028] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A high-strength sealing device for dewatering wells, comprising a dewatering well, characterized in that: The system includes a bottom cover for installation at the bottom of a dewatering well, the bottom cover having fasteners for securing it to the well, a reinforcing member at the bottom of the well to improve the stability of the bottom cover within the well, a top cover within the well, the top cover being opposite the bottom cover and forming a grouting groove between them for external concrete pouring, the top cover having a grouting hole communicating with the grouting groove, a sealing cover within the well, and a reserved groove between the sealing cover and the top cover for the top cover to slide when the concrete in the grouting groove solidifies, and a groove at the bottom of the sealing cover for... A sealing element that improves the sealing between the sealing cover and the top cover when the cover slides to a certain distance. The sealing cover is provided with a positioning element for fixing the sealing cover in the dewatering well. The sealing element includes a sealing ring provided at the bottom of the sealing cover. The bottom surface of the sealing ring is fitted with the end face of the top cover with a clearance. The outer peripheral wall of the sealing ring is fitted with the inner peripheral wall of the dewatering well. A first abutting ring is provided at the bottom of the sealing ring. The first abutting ring is flared from the direction of the sealing cover to the direction of the top cover. A second abutting ring is provided on the end face of the top cover for abutting with the inner peripheral wall of the first abutting ring when the top cover slides to a certain distance.

2. The high-strength sealing device for dewatering wells according to claim 1, characterized in that: The positioning component includes a positioning ring disposed in the dewatering well, the positioning ring being positioned above the sealing cover, the positioning ring having a plurality of first through holes circumferentially through it, the sealing cover having a second through hole corresponding to each of the first through holes, each of the first through holes having a connecting rod threadedly connected to it for threaded engagement with its adjacent second through hole, the inner circumferential wall of the dewatering well opening having a plurality of first positioning holes circumferentially through it, the positioning ring having a second positioning hole corresponding to each of the first positioning holes, each of the second positioning holes having a positioning rod threadedly connected to it for threaded engagement with its corresponding first positioning hole.

3. The high-strength sealing device for dewatering wells according to claim 1, characterized in that: The inner circumferential wall of the dewatering well is provided with a number of reinforcing ribs arranged in a circular pattern. The reinforcing ribs are all located in the injection groove. The radial cross section of the reinforcing ribs is "L" shaped. The reinforcing ribs are composed of horizontal and vertical rods. The injection groove is provided with a number of expansion rings. The expansion rings are made of elastic material and are arranged coaxially. The expansion rings have expansion holes through which the vertical rods pass. The vertical rods of the reinforcing ribs pass through the expansion holes. The inner wall of each vertical rod is abutted against the inner circumferential wall of the expansion hole. The outer circumferential walls of the expansion rings are abutted against the inner circumferential wall of the dewatering well.

4. The high-strength sealing device for dewatering wells according to claim 1, characterized in that: The bottom of the cover is provided with a breaking cone for buffering the pressure of external groundwater gushing. The breaking cone has a conical radial cross section and its sharp end faces the bottom opening of the dewatering well.

5. The high-strength sealing device for dewatering wells according to claim 4, characterized in that: The hollow breaking cone has a casting cavity, and a transition hole connects the casting cavity and the grouting tank.

6. The high-strength sealing device for dewatering wells according to claim 4, characterized in that: The bottom of the cover has several sharp protrusions arranged around the breaking cone.

7. The high-strength sealing device for dewatering wells according to claim 1, characterized in that: Several connecting grooves are provided at the edge of the bottom cover, and several pre-embedded holes are arranged circumferentially on the inner peripheral wall of the bottom of the dewatering well. The positions of the pre-embedded holes and the connecting grooves are set one-to-one. Each connecting groove has a threaded connecting bolt on its inner peripheral wall for threaded engagement with the corresponding and adjacent pre-embedded hole.

8. The high-strength sealing device for dewatering wells according to claim 1, characterized in that: The reinforcing member includes several steel meshes disposed at the bottom of the dewatering well, with the steel meshes stacked layer by layer.

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