A method and apparatus for water diversion in a highly permeable zone of a filled mine.

Abstract

This invention belongs to the field of mining production, specifically relating to a water guiding device for a highly permeable area in a filled mine. It includes: a filling body water guiding pipe, a rock water guiding pipe, and a diversion pipe. The rock water guiding pipe is inserted into the wall of the working face, and its surface is provided with multiple rock filter holes. The filling body water guiding pipe connects to the rock water guiding pipe and extends out of the mine shaft to discharge seepage water. The filling body water guiding pipe includes an outer pipe and an inner pipe. The surface of the outer pipe is provided with multiple outer pipe filter holes, and the outer pipe is fitted inside the inner pipe, forming an annular cavity filled with water-soluble filler. The diversion pipe is vertically arranged, its bottom connected to the filling body water guiding pipe. Multiple diversion pipes are arranged axially along the filling body water guiding pipe, and their surfaces are provided with multiple diversion filter holes. Compared with existing technologies, this invention can effectively discharge seepage water from the working face wall and filling material, significantly improving seepage discharge efficiency.

Description

Technical Field

[0001] This invention belongs to the field of mining production, and specifically relates to a water guiding method and device for a highly permeable area in a filled mine. Background Technology

[0002] Highly permeable zones in mines have a significant impact on daily production and economic ore recovery. Backfill materials used in backfilling mines, such as concrete or tailings, lack water-proofing capabilities. Therefore, highly permeable zones often exhibit severe roof seepage across multiple layered backfill bodies, increasing the risk of roof collapses and other accidents. Finding suitable locations for drainage is crucial for such mines, especially those with unclear seepage channels, stable water supply, and where grouting operations are not feasible. This invention addresses this problem by utilizing a special device for drainage, effectively removing seepage water. Summary of the Invention

[0003] The purpose of this invention is to provide a water diversion method and device for highly permeable areas in filled mines, in order to solve the problems existing in the prior art. To achieve the above-mentioned objective, the technical solution adopted by this invention is as follows:

[0004] A water guiding device for a filled mine with strong seepage zone includes: a filling body water guiding pipe, a rock water guiding pipe, and a diversion pipe; the rock water guiding pipe is inserted into the wall of the working face, and the surface of the rock water guiding pipe is provided with multiple rock filter holes;

[0005] The filling body water guide pipe is connected to the rock water guide pipe and extends out of the mine to discharge seepage water. The filling body water guide pipe includes an outer pipe and an inner pipe. The surface of the outer pipe is provided with multiple outer pipe filter holes. The outer pipe is sleeved inside the inner pipe, and an annular cavity is formed between the two. The annular cavity is filled with water-soluble filler.

[0006] The drainage pipe is vertically arranged, and its bottom is connected to the water guide pipe of the filling body. Multiple drainage pipes are arranged along the axial direction of the water guide pipe of the filling body, and multiple drainage filter holes are arranged on the surface of the drainage pipe.

[0007] Furthermore, a support ring is fitted onto the inner tube, the outer side of the support ring abuts against the outer tube, and the support ring is provided with support ring filter holes, and multiple support rings are distributed along the axial direction of the inner tube.

[0008] Furthermore, the rock water guide pipe is filled with a first water filter packing, the inner pipe is filled with a second water filter packing, the surface of the inner pipe is provided with a plurality of inner pipe filter holes, and the drainage pipe is filled with a fourth water filter packing.

[0009] Furthermore, the water-soluble filler includes soluble industrial salt.

[0010] Furthermore, it also includes a connecting component, which includes an upper arc-shaped shell. The bottom of the drainage tube is fixedly connected to the upper arc-shaped shell. The upper arc-shaped shell is attached to the upper surface of the outer tube. An arc-shaped groove is provided on the inner side of the upper arc-shaped shell. An arc-shaped cavity is formed between the arc-shaped groove and the outer tube. The arc-shaped cavity is connected to the water filter hole of the outer tube.

[0011] Furthermore, the connecting component also includes a lower arc-shaped shell and an arc-shaped rod. The lower arc-shaped shell is symmetrically arranged with the upper arc-shaped shell. The lower arc-shaped shell is attached to the lower surface of the outer tube. A first arc-shaped hole is provided in the lower arc-shaped shell, and a second arc-shaped hole is provided in the upper arc-shaped shell. The first and second arc-shaped holes are concentrically distributed. The arc-shaped rod is rotatably disposed in the first arc-shaped hole. The arc length of the arc-shaped rod is greater than the arc length of the upper and lower arc-shaped shells. The arc-shaped rod is used to rotate to insert into the second arc-shaped hole, and its two ends are inserted into the first arc-shaped hole. The bottom of the lower arc-shaped shell is fixedly connected to the mine wall, and the top of the drainage pipe is fixedly connected to the mine wall.

[0012] Furthermore, the filter holes of the outer tube are distributed in the upper part of the outer tube, located above the horizontal radial direction of the outer tube.

[0013] Furthermore, the inner tube is connected to multiple rock water pipes via connecting pipes, and the connecting pipes are filled with a third filter packing.

[0014] A water diversion method for highly permeable zones in filled mines includes:

[0015] Observe whether the rock at the working face is seeping water. If it is, drill multiple water collection holes at the working face and fix the rock water conduit inside the water collection holes.

[0016] Connect the inner pipe of the filling body water pipe to multiple rock water pipes;

[0017] A water guide pipe for the filling body is fixedly installed, with the end of the water guide pipe extending out of the mine shaft;

[0018] Mine backfill material;

[0019] The filling body water guide pipe includes inner and outer double-layer pipes, with soluble water filler filling between the inner and outer pipes, and multiple outer pipe filter holes are provided on the surface of the outer pipe.

[0020] The present invention has the following beneficial effects: Compared with the prior art, the present invention can effectively drain the seepage water from the working face wall and the filling material. After the seepage water dissolves the water-soluble filler, it can form an annular cavity between the inner and outer pipes, which can significantly improve the seepage drainage efficiency. Before seepage occurs, during the backfilling process of the filling material, the water-soluble filler can improve the structural strength between the inner and outer pipes and prevent the pipes from rupturing under pressure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0024] Figure 4 This is a schematic cross-sectional view showing the connection relationship between the upper and lower arc-shaped shells;

[0025] Figure 5 This is a schematic diagram of the arc-shaped rod detaching from the upper arc-shaped shell. Detailed Implementation

[0026] The following will refer to the appendices in the embodiments of the present invention. Figures 1-5 The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0027] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 this invention.

[0028] like Figure 1 A water guiding device for a filled mine with strong seepage zone includes: a filling body water guiding pipe 3, a rock water guiding pipe 4, and a diversion pipe 6; the rock water guiding pipe 4 is inserted into the wall of the working face 1, and a plurality of rock filter holes 402 are provided on the surface of the rock water guiding pipe 4.

[0029] The filling body water pipe 3 is connected to the rock water pipe 4. The filling body water pipe 3 extends out of the mine to discharge seepage water. The filling body water pipe 3 includes an outer pipe 301 and an inner pipe 302. The surface of the outer pipe 301 is provided with a plurality of outer pipe filter holes 303. The outer pipe 301 is sleeved in the inner pipe 302, and an annular cavity is formed between the two. The annular cavity is filled with water-soluble filler 306.

[0030] The drainage pipe 6 is vertically arranged, and its bottom is connected to the water guide pipe 3 of the filling body. Multiple drainage pipes 6 are arranged in the axial direction of the water guide pipe 3 of the filling body, and multiple drainage filter holes 601 are arranged on the surface of the drainage pipe 6.

[0031] Specifically, multiple water-gathering holes are first drilled on the working face 1, and rock water-conducting pipes 4 are inserted into these holes. The water-gathering holes and rock water-conducting pipes 4 can be installed horizontally or at an angle. A corresponding stope drainage pipe or water tank can be installed at the end of the backfill water-conducting pipe 3 extending out of the mine. After installing the backfill water-conducting pipe 3 and the rock water-conducting pipe 4, backfill material 2 is backfilled outwards in the mine outlet direction (left and right of 1 in the figure). Backfill material 2 is based on existing technology, such as concrete or tailings. The backfill material 2 fills the entire mine area, thus achieving mine backfilling.

[0032] Multiple drainage pipes 6 are equidistantly arranged in the mine outlet direction. Water from the filling material 2 and seepage from the mine enters the drainage pipe 6 through the drainage filter holes 601, and then drains from top to bottom into the filling body water guide pipe 3. Within the wall portion of the working face 1, seepage flows from the rock filter holes 402 into the rock water guide pipe 4, and then from the rock water guide pipe 4 into the filling body water guide pipe 3. Seepage from the rock water guide pipe 4 enters the inner pipe 302, while seepage from the drainage pipe 6 and the filling material 2 enters the annular cavity. The water-soluble filler 306 dissolves thereafter, forming an annular cavity between the inner and outer pipes, which facilitates the continuous introduction and smooth drainage of seepage. Compared with the prior art, the present invention can effectively drain the seepage water from the working face 1 wall and the filling material 2. Multiple drainage pipes 6 can evenly drain the seepage water from the filling material 2. After the seepage water dissolves the water-soluble filler 306, it can form an annular cavity between the inner and outer pipes, which can significantly improve the seepage water drainage efficiency. Before seepage occurs, during the backfilling process of the filling material 2, the water-soluble filler 306 can improve the structural strength between the inner and outer pipes and prevent the pipes from rupturing under pressure.

[0033] like Figure 2 The inner tube 302 is fitted with a support ring 307, the outer side of the support ring 307 abuts against the outer tube 301, the support ring 307 is provided with a support ring filter hole, and multiple support rings 307 are distributed along the axial direction of the inner tube 302.

[0034] The support ring 307 is annular and fixedly connected to the inner tube 302. A corresponding rubber ring can be provided between the outer surface of the support ring 307 and the inner surface of the outer tube 301 for a tight fit. The filter holes of the support ring can have various structures such as round holes, square holes, and oblong holes. For the filter holes of the support ring located below the horizontal radial plane of the inner tube 302, their diameter can be set to be larger. Since seepage water is discharged from below the inner tube 302 in the annular cavity, this design facilitates the passage of seepage water through the filter holes of the support ring. The support ring 307 provides support for the outer tube 301. Simultaneously, when filling the soluble water filler 306, the outer tube 301 is fitted onto the inner tube 302, and the portion between two adjacent support rings 307 is filled sequentially. This allows the soluble water filler 306 to be compacted before filling the next portion, thus promoting uniform filling of the soluble water filler 306. The soluble water filler 306 can completely fill the annular cavity.

[0035] Furthermore, the rock water guide pipe 4 is filled with a first water filter packing 401, the inner pipe 302 is filled with a second water filter packing 305, the surface of the inner pipe 302 is provided with a plurality of inner pipe water filter holes 304, and the drainage pipe 6 is filled with a fourth water filter packing 602.

[0036] Furthermore, the water-soluble filler 306 includes soluble industrial salt. Additionally, the water-soluble filler 306 can also be a mixture of soluble industrial salt and fine sand, prepared in a ratio of 1:2.

[0037] like Figures 1-2 , Figures 4-5 It also includes a connecting component, which includes an upper arc-shaped housing 605. The bottom of the drain tube 6 is fixedly connected to the upper arc-shaped housing 605. The upper arc-shaped housing 605 is attached to the upper surface of the outer tube 301. An arc-shaped groove 606 is provided on the inner side of the upper arc-shaped housing 605. An arc-shaped cavity is formed between the arc-shaped groove 606 and the outer tube 301. The arc-shaped cavity is connected to the water filter hole 303 of the outer tube.

[0038] The number of external tube filter holes 303 is greater than that of the drainage pipe 6. Therefore, in the axial direction of the external tube 301, only a portion of the external tube filter holes 303 are connected to the drainage pipe 6. The advantage of this design is that the other external tube filter holes 303 can be filled with the seepage water between two adjacent drainage pipes 6. In other words, a portion of the seepage water generated by the filling material 2 between two adjacent drainage pipes 6 can enter the external tube filter holes 303.

[0039] Furthermore, the connecting component also includes a lower arc-shaped housing 9 and an arc-shaped rod 8. The lower arc-shaped housing 9 is symmetrically arranged with the upper arc-shaped housing 605. The lower arc-shaped housing 9 is attached to the lower surface of the outer tube 301. A first arc-shaped hole 901 is provided in the lower arc-shaped housing 9, and a second arc-shaped hole is provided in the upper arc-shaped housing 605. The first and second arc-shaped holes are concentrically distributed. The arc-shaped rod 8 is rotatably disposed in the first arc-shaped hole 901. The arc length of the arc-shaped rod 8 is greater than the arc length of the upper and lower arc-shaped housings. The arc-shaped rod 8 is used to rotate to insert into the second arc-shaped hole, and its two ends are inserted into the first arc-shaped hole 901. The bottom of the lower arc-shaped housing 9 is fixedly connected to the mine wall, and the top of the drainage pipe 6 is fixedly connected to the mine wall.

[0040] It should be noted that the horizontal radial plane of the outer tube 301 refers to the horizontal plane located in the diameter direction of the outer tube 301. The central angle of the arc structure of the lower arc shell 9 is larger than the central angle of the upper arc shell 605. There is a gap between the two ends of the lower arc shell 9 and the upper arc shell 605. The arc rod 8, the lower arc shell 9, the upper arc shell 605, and the filling water guide pipe 3 are coaxially arranged. In specific implementation, such as Figure 5 At this point, the upper arc-shaped housing 605 has just been installed. Align the upper arc-shaped housing 605 with the lower arc-shaped housing 9, ensuring they are on the same plane. Then, rotate the arc-shaped rod 8. Insert one end of the arc-shaped rod 8 into the second arc-shaped hole, and continue rotating the arc-shaped rod 8 until one end passes through the second arc-shaped hole and enters the first arc-shaped hole 901, forming a shape as shown. Figure 4 In this state, along the axial length of the filling body water guide pipe 3, the arc-shaped rod 8 forms the upper and lower arc-shaped shells into a whole, which can constrain the drainage pipe 6 on the filling body water guide pipe 3 in the axial direction, improve the stability of the drainage pipe 6, and effectively prevent the drainage pipe 6 from shifting during the backfilling process of the filling material 2.

[0041] In addition, the bottom of the lower arc-shaped shell 9 is fixedly connected to the lifting base 7, which is fixed to the mine foundation surface. The top of the drainage pipe 6 is fixedly connected to the fixing block 603, which is fixed to the mine roof. The fixing block 603 and the lifting base 7 can be fixed to the mine wall surface by means of expansion bolts, anchor bolts, etc.

[0042] Furthermore, the outer tube filter holes 303 are distributed in the upper part of the outer tube 301, located above the horizontal radial direction of the outer tube 301. That is to say, the permeated water enters through the outer tube filter holes 303 in the upper part of the outer tube 301, flows through the lower space of the outer tube 301 and the annular cavity, and is discharged.

[0043] Furthermore, the inner tube 302 is connected to multiple rock water pipes 4 via a connecting pipe 5, and the connecting pipe 5 is filled with a third filter filler 503.

[0044] Specifically, the first filter media 401, the second filter media 305, the third filter media 503, and the fourth filter media 602 are all existing technologies and can be made of sand, gravel, etc. It is preferable to use media with larger particle size and volume to create larger gaps within the pipe and avoid affecting drainage. Furthermore, these three media are preferably filled to approximately 60% of the pipe's internal space, providing sufficient structural strength to prevent pipe damage while also preventing water leakage.

[0045] The connecting pipe 5 is vertically installed, with one end connected to the corresponding rock water guide pipe 4 via multiple insertion pipes 502. The end of the rock water guide pipe 4 is equipped with a flange 404, which is fixed to the wall of the working face 1 by expansion bolts 403 or other components. The other end of the connecting pipe 5 is connected to the inner pipe 302 via an intermediate pipe 501. The inner pipe 302 passes through the outer pipe 301 near the working face 1 and is sealed by a sealing ring.

[0046] In addition, in this invention, a drainage pipe filter 604 is fixedly installed at the bottom of the drainage pipe 6, an inner pipe filter is installed at one end of the inner pipe 302 connecting to the intermediate pipe 501, and a connecting pipe filter is installed at one end of the connecting pipe 5 connecting to the rock water guide pipe 4. The purpose of these filters is to support and fix the packing material in the corresponding pipes.

[0047] A water diversion method for highly permeable zones in filled mines includes:

[0048] Step 1: Observe whether the rock at the working face 1 is seeping water. If it is seeping water, drill multiple water collection holes on the working face 1 and fix the rock water guide pipe 4 inside the water collection holes.

[0049] Step 2: Connect the inner pipe 302 of the filling body water pipe 3 to multiple rock water pipes 4;

[0050] Step 3: Fix and install the filling body water guide pipe 3, with the end of the filling body water guide pipe 3 extending out of the mine shaft;

[0051] Step 4, Mine backfill material 2;

[0052] The filling body water guide pipe 3 includes inner and outer double-layer pipes, with water-soluble filler 306 filling the space between the inner and outer pipes, and multiple outer pipe filter holes 303 provided on the surface of the outer pipe 301.

[0053] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, substitutions, or variations made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A water diversion method for a highly permeable zone in a filled mine, comprising a water diversion device for the highly permeable zone in a filled mine, characterized in that, The water guiding device for the strong seepage zone of the filled mine includes: a water guiding pipe for the filling body (3), a water guiding pipe for the rock (4), and a drainage pipe (6). The rock water pipe (4) is inserted into the wall of the working face (1), and the surface of the rock water pipe (4) is provided with multiple rock filter holes (402). The filling body water pipe (3) is connected to the rock water pipe (4). The filling body water pipe (3) extends out of the mine to discharge seepage water. The filling body water pipe (3) includes an outer pipe (301) and an inner pipe (302). The surface of the outer pipe (301) is provided with a plurality of outer pipe filter holes (303). The outer pipe (301) is sleeved inside the inner pipe (302), and an annular cavity is formed between the two. The annular cavity is filled with water-soluble filler (306). The drainage pipe (6) is set vertically, and its bottom is connected to the filling body water guide pipe (3). Multiple drainage pipes (6) are set in the axial direction of the filling body water guide pipe (3), and multiple drainage filter holes (601) are set on the surface of the drainage pipe (6). The water guiding device for the strong seepage zone of the filling mine also includes a connecting component, which includes an upper arc-shaped shell (605). The bottom of the drainage pipe (6) is fixedly connected to the upper arc-shaped shell (605). The upper arc-shaped shell (605) is attached to the upper surface of the outer pipe (301). An arc-shaped groove (606) is provided on the inner side of the upper arc-shaped shell (605). An arc-shaped cavity is formed between the arc-shaped groove (606) and the outer pipe (301). The arc-shaped cavity is connected to the water filter hole (303) of the outer pipe. The connecting component also includes a lower arc-shaped housing (9) and an arc-shaped rod (8). The lower arc-shaped housing (9) is symmetrically arranged with the upper arc-shaped housing (605). The lower arc-shaped housing (9) is attached to the lower surface of the outer tube (301). A first arc-shaped hole (901) is provided in the lower arc-shaped housing (9), and a second arc-shaped hole is provided in the upper arc-shaped housing (605). The first and second arc-shaped holes are concentrically distributed. The arc-shaped rod (8) is rotatably arranged in the first arc-shaped hole (901). The arc length of the arc-shaped rod (8) is greater than the arc length of the upper and lower arc-shaped housings. The arc-shaped rod (8) is used to rotate to be inserted into the second arc-shaped hole, and its two ends are inserted into the first arc-shaped hole (901). The bottom of the lower arc-shaped shell (9) is fixedly connected to the mine wall, and the top of the drainage pipe (6) is fixedly connected to the mine wall; The inner tube (302) is connected to multiple rock water pipes (4) through a connecting pipe (5), and the connecting pipe (5) is filled with a third filter filler (503). The water guiding method includes: observing whether the rock at the working face (1) is seeping water; if it is seeping water, drilling multiple water-gathering holes on the working face (1) and fixing the rock water guiding pipe (4) inside the water-gathering holes; Connect the inner pipe (302) of the filling body water pipe (3) to multiple rock water pipes (4); The filling body water pipe (3) is fixedly installed, and the end of the filling body water pipe (3) extends out of the mine shaft; Mine backfill material (2); Among them, the filling body water guide pipe (3) includes inner and outer double-layer pipes, with soluble water filler (306) filling the space between the inner and outer pipes, and multiple outer pipe filter holes (303) provided on the surface of the outer pipe (301).

2. The water diversion method for a highly permeable zone in a filled mine according to claim 1, characterized in that: A support ring (307) is sleeved on the inner tube (302). The outer side of the support ring (307) abuts against the outer tube (301). The support ring (307) is provided with a support ring filter hole. Multiple support rings (307) are distributed along the axial direction of the inner tube (302).

3. The water diversion method for a highly permeable area in a filled mine according to claim 1, characterized in that: The rock water guide pipe (4) is filled with a first filter packing material (401), the inner pipe (302) is filled with a second filter packing material (305), the surface of the inner pipe (302) is provided with a plurality of inner pipe filter holes (304), and the drainage pipe (6) is filled with a fourth filter packing material (602).

4. The water diversion method for a highly permeable zone in a filled mine according to claim 1, characterized in that: The water-soluble filler (306) includes soluble industrial salt.

5. The water diversion method for a highly permeable zone in a filled mine according to claim 1, characterized in that: The filter holes (303) of the outer tube are distributed on the upper part of the outer tube (301) and are located above the horizontal radial direction of the outer tube (301).

Images