Method, device, terminal and storage medium for pumping overburden water from ground layer to prevent water inrush

Abstract

The present invention relates to the field of mineral mining technology, and in particular to a method, device, terminal and storage medium for pumping water from overburden separation layer on the ground to prevent water inrush. In the implementation mode of the present invention, the main separation layer position is first obtained, and the main separation layer position is used to characterize the position of the main separation layer. Then, according to the geological conditions and the position of the opening eye, the drilling position is determined. Then, when the working face advancement position meets the preset conditions, a drainage hole is drilled at the drilling position according to the main separation layer position. Finally, the water in the overburden separation layer is discharged through the drainage hole. By determining the main separation layer position determination step, the depth of the water level in the separation layer space that causes water inrush in the target working area can be determined, and then the drilling position is determined according to the geological conditions to ensure that as much water as possible can be pumped out of the separation layer. By drilling again when the working face advancement meets the predetermined conditions, the period of intense overburden activity can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mineral mining, and in particular to a method, a device, a terminal and a storage medium for pumping overburden stratum water from the ground to prevent water inrush. Background Art

[0002] After coal seam mining, the overlying rock strata will be unevenly damaged and deformed due to differences in thickness, lithology and strength. Horizontal cracks will appear between the upper and lower rock strata of different hardness, which is the so-called delamination.

[0003] When the overlying rock layer of the separation layer is a water-rich rock layer and the underlying rock layer is a soft rock layer, it will accumulate into a separation layer water body within a certain period of time. With the continuous advancement of the working face and the accumulation of time in mineral mining, the amount of water and water pressure in the closed separation layer space will continue to accumulate. When the working face advances a certain distance, the overlying rock layer breaks and becomes unstable, and the fracture zone conducts the separation layer space, causing the overlying rock separation layer water body to suddenly flow down and feed into the working space of the working face. Since the underlying rock layer of the separation layer space is mostly mud cemented rock mass, it will disintegrate and muddy when it encounters water and then feed into the working space of the working face with water, resulting in ventilation blockage and siltation of the working space. At the same time, the coal seam roof rock layer weakened by water is prone to instability, causing severe pressure on the working face or even frame compression, which has become one of the major hidden dangers affecting mine safety production.

[0004] At present, the main methods for preventing and controlling abscission water are grouting to fill aquifers and constructing diversion holes in the abscission space to guide water into the well. Because the permeability coefficient of some aquifers is small before mining, the grouting effect is minimal; the construction of diversion holes often causes the borehole to be affected by the instability of the rock formation, resulting in the displacement of the borehole, the collapse and muddy rock mass blocking the borehole, and the amount of water discharged is unstable. Therefore, the key to controlling such disasters is to prevent water inrush by stably and timely draining the abscission water body.

[0005] Based on this, it is necessary to develop and design a method for pumping out overburden stratum water on the ground to prevent water inrush. Summary of the invention

[0006] The embodiments of the present invention provide a method, device, terminal and storage medium for preventing water inrush by pumping out overburden delamination water from the ground, which are used to solve the problem that the prior art is not effective in preventing and controlling water inrush disasters caused by delamination water on the working face.

[0007] In a first aspect, an embodiment of the present invention provides a method for preventing water inrush by pumping overburden stratum water from the ground, comprising:

[0008] Obtaining a main separation layer position, where the main separation layer position is used to characterize the position of the main separation layer;

[0009] Determine the drilling position according to geological conditions and the position of the cut hole, wherein the drilling position is the drilling position for pumping out the abscission water;

[0010] When the advancing position of the working face meets the preset conditions, a drainage hole is drilled at the drilling position according to the main separation layer position;

[0011] The water in the overburden separation layer is discharged through the drainage hole.

[0012] In a possible implementation, the main separation layer position is the depth of the main separation layer, and obtaining the main separation layer position includes:

[0013] Obtaining geological conditions, including the location of aquifers and aquicludes;

[0014] Determine the characteristics of the target rock formation according to the characteristics of the rock formation of the previously mined working face and / or the characteristics of the rock formation of similar surrounding working faces, wherein the target rock formation includes the rock formation of the aquifer and the rock formation of the aquiclude;

[0015] According to the geological conditions and the characteristics of the target rock formation, the height of the water-conducting fracture zone of the working face is determined by analyzing the overburden fracture theory;

[0016] The position of the main separation layer is determined according to the geological conditions and the height of the water-conducting fracture zone of the working face.

[0017] In a possible implementation, the geological conditions include: the thickness of the underlying aquiclude, and the determination of the drilling position according to the geological conditions and the drilling position includes:

[0018] Obtain the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces;

[0019] Determine the collapse angle of the target rock formation based on the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces;

[0020] According to the collapse angle of the target rock formation and the thickness of the underlying impermeable layer, determine the distance from the position where the abscission layer starts to develop to the target working area where the cut is to be made, and take the distance from the position where the abscission layer starts to develop to the target working area where the cut is to be made as the target distance;

[0021] In the area corresponding to the ground of the target working area, along the advancing direction of the target working area, a position on the central axis of the target working area whose distance from the opening of the target working area is not less than the target distance is obtained as the drilling position.

[0022] In a possible implementation, the geological conditions include: the thickness of the underlying aquiclude, and the determination of the drilling position according to the geological conditions and the drilling position includes:

[0023] Obtain the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces;

[0024] Determine the collapse angle of the target rock formation based on the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces;

[0025] According to the collapse angle of the target rock formation and the thickness of the underlying impermeable layer, the distance from the position where the abscission layer starts to develop to the target working area for opening the cut is determined, and the distance from the position where the abscission layer starts to develop to the target working area for opening the cut is taken as the target distance;

[0026] Acquire an adjacent mined-out working area, wherein the adjacent mined-out working area is a mined-out working area adjacent to the target working area;

[0027] At the position corresponding to the ground of the adjacent goaf working area, along the advancement direction of the target working area, obtain a position on the central axis of the adjacent goaf working area whose opening distance from the adjacent goaf working area is not less than the target distance as the drilling position.

[0028] In a possible implementation, determining the distance between the start of stratum development and the target working area for opening the cut according to the collapse angle of the target rock formation and the thickness of the underlying aquiclude includes:

[0029] The distance from the start of the development of the stratum to the target working area to open the cut is determined according to the collapse angle of the target rock formation, the thickness of the underlying aquiclude and the first formula, wherein the first formula is:

[0030] l = h·cotθ

[0031] Where l is the distance from the start of the detachment development to the target working area, h is the thickness of the underlying impermeable layer, and θ is the collapse angle of the target rock formation.

[0032] In a possible implementation, when the advancing position of the working face meets the preset conditions, drilling a drainage hole at the drilling position according to the main separation layer position includes:

[0033] When the position of the working surface exceeds the preset distance of the drilling position, drilling a drainage hole at the drilling position;

[0034] The bottom of the drainage hole passes through the main detached layer and enters the aquiclude to a predetermined depth. A sieve tube is provided on the inner wall of the drainage hole. The sieve tube passes through the detached layer space and the aquifer. The bottom of the sieve tube is provided at the bottom of the drainage hole.

[0035] In a possible implementation, draining the water from the overburden separation layer through the drainage hole includes:

[0036] Put the water level gauge and the submersible pump into the drainage hole;

[0037] The submersible pump is controlled to pump out the absorptive water according to the water level signal fed back by the water level meter.

[0038] In a second aspect, an embodiment of the present invention provides a ground pumping and draining overburden separation layer water prevention device, comprising:

[0039] A separation layer position acquisition module is used to acquire the main separation layer position, and the main separation layer position is used to characterize the position of the main separation layer;

[0040] A drilling position determination module is used to determine the drilling position according to geological conditions and the position of the cut hole, wherein the drilling position is the drilling position for pumping out the abscission water;

[0041] A drainage hole drilling module is used to drill drainage holes at the drilling position according to the main separation layer when the advancing position of the working face meets the preset conditions;

[0042] as well as,

[0043] The drainage module is used to drain the water from the overburden separation layer through the drainage hole.

[0044] In a third aspect, an embodiment of the present invention provides a terminal, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the computer program, it implements the steps of the method described in the first aspect or any possible implementation method of the first aspect.

[0045] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method described in the first aspect or any possible implementation of the first aspect are implemented.

[0046] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0047] The embodiment of the present invention discloses a method for preventing water inrush from overburden strata by pumping water from overburden strata on the ground. The method first obtains the main stratum position, which is used to characterize the position of the main stratum. Then, according to the geological conditions and the position of the cut hole, the drilling position is determined. Then, when the working face advancement position meets the preset conditions, a drainage hole is drilled at the drilling position according to the main stratum position. Finally, the water in the overburden stratum is discharged through the drainage hole. By determining the main stratum position determination step, the depth of the water level in the stratum space that causes water inrush in the target working area can be determined. Then, according to the geological conditions, the drilling position is determined to ensure that as much water in the stratum as possible can be pumped out. By drilling again when the working face advancement meets the preset conditions, the period of intense overburden activity can be avoided. According to field practice, the method is applied to pump water from the overburden stratum space of the working face from the ground, and the overburden stratum space water on the working face can be pumped to the ground stably and timely, so as to achieve the effect of "waterless" mining in the well, realize the goal of preventing water inrush from stratum water, and make the drainage of stratum water more scientific and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0049] Figure 1 It is a flow chart of a method for preventing water inrush from ground pumping overburden stratum water provided by an embodiment of the present invention;

[0050] Figure 2 is a top perspective view of a target working area provided by an embodiment of the present invention;

[0051] Figure 3 is a cross-sectional schematic diagram of a target working area provided by an embodiment of the present invention;

[0052] Figure 4 It is a functional block diagram of a ground pumping and draining overburden separation water and water inrush prevention device provided by an embodiment of the present invention;

[0053] Figure 5 It is a functional block diagram of a terminal provided by an embodiment of the present invention.

[0054] In the figure:

[0055] 201 goaf area;

[0056] 202 target work area;

[0057] 203 drilling location;

[0058] 204 Target work area central axis;

[0059] 205 adjacent to the goaf working area;

[0060] 206 is adjacent to the central axis of the goaf working area;

[0061] 207 target working surface;

[0062] 301 aquifer;

[0063] 302 waterproof layer;

[0064] 303 goaf caving zone;

[0065] 304 abscission space;

[0066] 305 screen tube;

[0067] 307 water pipe;

[0068] 308 submersible pump;

[0069] 309 mining coal seams;

[0070] 310 topsoil layer. DETAILED DESCRIPTION

[0071] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, and methods are omitted so as not to obscure the description of the present invention with unnecessary details.

[0072] In order to make the purpose, technical solutions and advantages of the present invention more clear, a specific implementation method will be described below in conjunction with the accompanying drawings.

[0073] The following is a detailed description of an embodiment of the present invention. This example is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0074] Figure 1 A flow chart of a method for preventing water inrush by pumping overburden stratum water from the ground provided in an embodiment of the present invention.

[0075] like Figure 1 As shown, it shows a flow chart of the method for preventing water inrush by pumping overburden stratum water from the ground provided by an embodiment of the present invention, which is described in detail as follows:

[0076] In step 101, the main separation layer position is obtained, and the main separation layer position is used to characterize the position of the main separation layer.

[0077] In some implementations, the main separation layer position is the depth at which the main separation layer is located, and step 101 includes:

[0078] Acquire geological conditions, wherein the geological conditions include the position of the aquifer 301 and the position of the aquiclude 302;

[0079] Determine the characteristics of the target rock formation according to the characteristics of the rock formation of the previously mined working face and / or the characteristics of the rock formation of the surrounding similar working faces, wherein the target rock formation includes the rock formation of the aquifer 301 and the rock formation of the aquiclude 302;

[0080] According to the geological conditions and the characteristics of the target rock formation, the height of the water-conducting fracture zone of the working face is determined by analyzing the overburden fracture theory;

[0081] The position of the main separation layer is determined according to the geological conditions and the height of the water-conducting fracture zone of the working face.

[0082] For example, Figure 2 As shown, Figure 2 A top down perspective view of the target workspace 202 is shown.

[0083] In the figure, the target working area 202 is an area where mineral resources are being mined, and the target working face 207 is gradually advanced from the left side to the right side. On the leftmost side of the target working area 202 is the goaf area 201, which refers to an area where mineral resources have been mined. The central axis of the target working area 202 runs through the target working area 202.

[0084] The lower side of the target working area 202 is the adjacent goaf working area 205 , and the central axis of the adjacent goaf working area 205 passes through the adjacent goaf working area 205 .

[0085] Figure 3 A front cross-sectional view of the target working area 202 is shown.

[0086] In the figure, there is a hard aquifer 301 below the surface soil layer 310, and below the aquifer 301 is a relatively soft aquiclude 302. Taking the coal seam as an example, the mined coal seam 309 of the target working area 202 is located below the aquiclude 302. When the mined coal seam 309 of the target working area 202 is mined, the aquiclude 302 collapses downward to form a caving zone 303 in the goaf. Due to the difference in rock formation properties between the aquiclude 302 and the aquifer 301, an abscission space 304 will be formed between the abscission 302 and the aquifer 301. The water in the aquiclude 302 will gradually fill in the abscission space 304. When the goaf caving zone 303 expands with the gradual advancement of the target working face 207, cracks will be formed, causing the water in the abscission space 304 to enter the target working area 202, causing an accident, that is, water inrush.

[0087] The main detachment layer is the location of the main detachment layer that causes water inrush in the mine, that is, when the aquiclude 302 collapses downward to form the goaf caving zone 303, the cracks connect the detachment layer and the target operating area. Usually, this position is the lowest point of the detachment layer.

[0088] The first step in pumping out the overburden stratum water should be to determine the lowest position of the stratum water so as to extract as much stratum water as possible. In some application scenarios, the depth of the main stratum is determined by obtaining geological conditions before the mining operation, such as geological and hydrogeological drilling, to determine the location of the aquifer 301 and the aquiclude 302. For example, by drilling cores and analyzing the cores, it is determined whether there are aquifers 301 and aquicludes 302 above the working surface, and the hardness of the aquiclude 302 is lower than that of the aquifer 301, as well as the thickness of each layer. Then, based on the rock characteristics of the surrounding aquifer 301 and the rock characteristics of the aquiclude 302, according to the overburden fracture theory, the height of the water-conducting fracture zone of the working surface can be determined. That is, the height of the fracture zone. With the height of the fracture zone development, combined with the previously obtained geological conditions, the position of the main stratum can be determined.

[0089] In step 102, a drilling position 203 is determined according to geological conditions and the position of the cut hole, wherein the drilling position 203 is a drilling position 203 for pumping out stratum water.

[0090] In some embodiments, the geological conditions include: the thickness of the underlying aquiclude 302, and step 102 includes:

[0091] Obtain the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces;

[0092] Determine the collapse angle of the target rock formation based on the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces;

[0093] According to the collapse angle of the target rock formation and the thickness of the underlying aquiclude 302, the distance from the start of the abscission development position to the target working area 202 for opening the cut is determined, and the distance from the start of the abscission development position to the target working area 202 for opening the cut is taken as the target distance;

[0094] In the area corresponding to the ground of the target working area 202 , along the advancing direction of the target working area 202 , a position on the central axis of the target working area 202 whose cutting distance from the target working area 202 is not less than the target distance is obtained as the drilling position 203 .

[0095] In some embodiments, the geological conditions include: the thickness of the underlying aquiclude 302, and step 102 includes:

[0096] Obtain the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces;

[0097] Determine the collapse angle of the target rock formation based on the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces;

[0098] According to the collapse angle of the target rock formation and the thickness of the underlying aquiclude 302, the distance from the start of the abscission development position to the target working area 202 for cutting is determined, and the distance from the start of the abscission development position to the target working area 202 for cutting is taken as the target distance;

[0099] Acquire an adjacent mined-out working area 205, wherein the adjacent mined-out working area 205 is a mined-out working area adjacent to the target working area 202;

[0100] At the position corresponding to the ground of the adjacent goaf working area 205 , along the advancing direction of the target working area 202 , obtain a position on the central axis 206 of the adjacent goaf working area whose cutting distance from the adjacent goaf working area 205 is not less than the target distance as the drilling position 203 .

[0101] In some embodiments, the determining of the distance between the start of the development of the separation layer and the target working area 202 for opening the cut according to the collapse angle of the target rock formation and the thickness of the underlying aquiclude 302 includes:

[0102] The distance from the start of the development of the separation layer to the target working area 202 for opening the cut is determined according to the collapse angle of the target rock formation, the thickness of the underlying aquiclude 302 and the first formula, wherein the first formula is:

[0103] l = h·cotθ

[0104] Wherein, l is the distance from the start of the development of the stratum to the target working area 202 where the cut is made, h is the thickness of the underlying impermeable layer 302, and θ is the collapse angle of the target rock formation.

[0105] For example, after determining the position of the main separation layer, it is also necessary to determine the exact orientation of the borehole. In one application scenario, the borehole is drilled above the target working area, while in another application scenario, the borehole is drilled in the adjacent working area of ​​the target working area 202, which should be a working area that has been mined out.

[0106] Before determining the drilling position, the collapse angle should be determined, that is, the acute angle of the isosceles triangle-like area formed after the collapse of the impermeable layer 302. This collapse angle is generally determined based on the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces.

[0107] According to the collapse angle and formula:

[0108] l = h·cotθ

[0109] The distance between the borehole and the cut hole can be determined, where l is the distance from the start of the separation layer development to the cut hole in the target working area 202, h is the thickness of the underlying impermeable layer 302, θ is the collapse angle of the target rock formation, and the cut hole is the position where the target working area starts working. The distance from the start of the separation layer development to the cut hole in the target working area 202 is also the target distance.

[0110] The drilling position 203 is determined in the target working area 202 or in a working area adjacent to the target working area 202 according to the target distance. In one application scenario, the ground area corresponding to the target working area 202 is found according to the target working area 202, the central axis of the ground area is found, and a point of the target distance on the central axis is found in the advancing direction, and this position is the drilling position 203.

[0111] In another application scenario, the drilling position 203 is located in an adjacent working area, which is the goaf 201, that is, the adjacent goaf working area 205. At this time, the ground area corresponding to the adjacent goaf working area 205 is found according to the adjacent goaf working area 205, and the central axis is found in the ground area. The point at the target distance on the central axis is found in the advancing direction of the target working area 202. This position is the drilling position 203.

[0112] In step 103, when the advancing position of the working face meets the preset conditions, a drainage hole is drilled at the drilling position 203 according to the main separation layer position.

[0113] In some embodiments, step 103 includes:

[0114] When the advancing position of the working face meets the preset conditions, drilling a drainage hole at the drilling position 203 according to the main separation layer position includes:

[0115] When the position of the working surface exceeds the preset distance of the drilling position 203, a drainage hole is drilled at the drilling position 203;

[0116] The bottom of the drainage hole passes through the main detached layer and enters the aquiclude 302 to a predetermined depth. A sieve tube 305 is provided on the inner wall of the drainage hole. The sieve tube 305 passes through the detached layer space 304 and the aquifer 301. The bottom of the sieve tube 305 is provided at the bottom of the drainage hole.

[0117] Exemplarily, in addition to determining the drilling position 203, the drainage hole should be drilled at an appropriate time. For example, in one application scenario, the working face is pushed past the drilling position 203 by 50-100m to avoid the period of intense overburden activity, and a hole is drilled on the construction ground to drain the overburden stratum water.

[0118] After drilling, a protective pipe should be laid down in time to prevent the collapse of the borehole. One implementation method uses a screen tube 305, which is a tube with holes in the wall, to prevent the newly opened drainage hole from collapsing. The bottom of the drainage hole should pass through the entire abscission space 304 and enter the aquifer 302 to a preset depth. For example, in one application scenario, this preset depth is 15 meters, so as to ensure that the lowest water level in the abscission space 304 can be pumped up. The bottom of the screen tube 305 is set at the bottom of the drainage hole, and the top exceeds the top of the aquifer 301.

[0119] In step 104, water in the overburden separation layer is drained through the drainage hole.

[0120] In some implementations, step 104 includes:

[0121] Place the water level gauge and the submersible pump 308 into the drainage hole;

[0122] The submersible pump 308 is controlled to pump out the absorptive water according to the water level signal fed back by the water level meter.

[0123] For example, after the hole is opened, a water level gauge and a submersible pump 308 are placed in the drainage hole, the water level in the abscission space 304 is reflected by the water level gauge, and the water in the abscission space 304 is pumped out by the submersible pump 308. Finally, the water pumped out by the submersible pump is discharged through the water pipe 307, and the discharged water can be used for production and life. In one application scenario, the signal fed back by the water level gauge is used as a signal of the pumping flow rate of the submersible pump 308, so that the submersible pump 308 is always below the water level line. If the water level is too low, the submersible pump 308 cannot be sufficiently cooled, resulting in the burning of the submersible pump 308.

[0124] The implementation method of the ground pumping out overburden stratum water to prevent water inrush of the present invention first obtains the main stratum position, which is used to characterize the position of the main stratum, and then determines the drilling position 203 according to the geological conditions and the position of the cut eye. Then, when the working face advancement position meets the preset conditions, a drainage hole is drilled at the drilling position 203 according to the main stratum position, and finally, the water of the overburden stratum is discharged through the drainage hole. By determining the main stratum position determination step, the depth of the water level of the stratum space 304 causing the water inrush of the target working area 202 can be determined, and then the drilling position 203 is determined according to the geological conditions to ensure that as much stratum water as possible can be pumped out. By drilling again when the working face advancement meets the preset conditions, the period of intense overburden activity can be avoided. Through field practice, the application of this method to pump water from the overlying stratum delamination space 304 of the working face from the ground can stably and timely pump water from the overlying stratum delamination space 304 of the working face to the ground, achieve the effect of "waterless" mining underground, realize the goal of preventing stratum water inrush, and make stratum water drainage more scientific and controllable.

[0125] It should be understood that the size of the serial numbers of the steps in the above implementation does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the implementation method of the present invention.

[0126] The following is an implementation of the device of the present invention. For details not described in detail, reference may be made to the corresponding method implementation described above.

[0127] Figure 4 This is a functional block diagram of a ground pumping and draining overburden separation water prevention device provided by an embodiment of the present invention, referring to Figure 4 The ground pumping and drainage overburden stratum water prevention device 4 includes: a stratum position acquisition module 401, a drilling position determination module 402, a drainage hole drilling module 403 and a drainage module 404.

[0128] The separation layer position acquisition module 401 is used to acquire the main separation layer position, and the main separation layer position is used to characterize the position of the main separation layer;

[0129] A drilling position determination module 402 is used to determine a drilling position 203 according to geological conditions and a hole opening position, wherein the drilling position 203 is a drilling position 203 for pumping out stratum water;

[0130] A drainage hole drilling module 403 is used to drill a drainage hole at the drilling position 203 according to the main separation layer position when the advancing position of the working face meets the preset conditions;

[0131] as well as,

[0132] The drainage module 404 is used to drain the water from the overburden separation layer through the drainage holes.

[0133] Figure 5 is a functional block diagram of a terminal provided by an embodiment of the present invention. Figure 5 As shown, the terminal 5 of this embodiment includes: a processor 500 and a memory 501, wherein the memory 501 stores a computer program 502 that can be run on the processor 500. When the processor 500 executes the computer program 502, the steps in the above-mentioned ground pumping and draining overburden separation water and water inrush prevention methods and embodiments are implemented, for example Figure 1 Steps 101 to 104 are shown.

[0134] Exemplarily, the computer program 502 may be divided into one or more modules / units, and the one or more modules / units are stored in the memory 501 and executed by the processor 500 to implement the present invention.

[0135] The terminal 5 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The terminal 5 may include, but is not limited to, a processor 500 and a memory 501. Those skilled in the art will appreciate that Figure 5 It is only an example of terminal 5 and does not constitute a limitation on terminal 5. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal may also include input and output devices, network access devices, buses, etc.

[0136] The processor 500 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0137] The memory 501 may be an internal storage unit of the terminal 5, such as a hard disk or memory of the terminal 5. The memory 501 may also be an external storage device of the terminal 5, such as a plug-in hard disk, a smart media card, SMC, a secure digital card, an SD card, a flash card, etc. equipped on the terminal 5. Further, the memory 501 may also include both an internal storage unit and an external storage device of the terminal 5. The memory 501 is used to store the computer program and other programs and data required by the terminal. The memory 501 may also be used to temporarily store data that has been output or is to be output.

[0138] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the implementation method can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method implementation method, which will not be repeated here.

[0139] In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0140] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0141] In the embodiments provided by the present invention, it should be understood that the disclosed devices / terminals and methods can be implemented in other ways. For example, the device / terminal embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0142] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0143] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0144] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned implementation method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, it can implement the steps of the above-mentioned ground pumping overburden water prevention method and ground pumping overburden water prevention device implementation method. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device that can carry the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory Read-Only Memory, ROM, random access memory Random Access Memory, RAM, electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practices in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practices, computer-readable media does not include electrical carrier signals and telecommunication signals.

[0145] The above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A method for preventing water inrush by pumping out overburden stratum water from the ground, characterized in that: include: Obtaining a main separation layer position, where the main separation layer position is used to characterize the position of the main separation layer; Determine a drilling position (203) according to geological conditions and a hole opening position, wherein the drilling position (203) is a drilling position for pumping out stratum water; When the advancing position of the working face meets the preset conditions, a drainage hole is drilled at the drilling position (203) according to the main separation layer position; The water in the overburden rock separation layer is discharged through the drainage hole; in, The geological conditions include: the thickness of the underlying aquiclude (302), and the determination of the drilling position (203) according to the geological conditions and the position of the cut hole includes: Obtain the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces; Determine the collapse angle of the target rock formation based on the collapse angle of the previously mined working face and / or the collapse angle of similar surrounding working faces; Determine the distance from the position where the abscission layer starts to develop to the target working area (202) for opening a cut hole according to the collapse angle of the target rock layer and the thickness of the underlying aquiclude (302), and use the distance from the position where the abscission layer starts to develop to the target working area (202) for opening a cut hole as the target distance; In an area of ​​the target working area (202) corresponding to the ground, along the advancing direction of the target working area (202), a position on the central axis of the target working area (202) whose distance from the opening of the target working area (202) is not less than the target distance is obtained as a drilling position (203); or, Acquire an adjacent goaf work area (205), and at a position on the ground corresponding to the adjacent goaf work area (205), acquire a position on the central axis (206) of the adjacent goaf work area, along the advancing direction of the target work area (202), which is not less than the target distance from the opening of the cut in the adjacent goaf work area (205), as a drilling position (203), wherein the adjacent goaf work area (205) is an already mined work area adjacent to the target work area (202); in, When the advancing position of the working face meets the preset conditions, drilling a drainage hole at the drilling position (203) according to the main separation layer position includes: When the position of the working surface exceeds a preset distance from the drilling position (203), drilling a drainage hole at the drilling position (203); The bottom of the drainage hole passes through the main stratum of the aquiclude and enters the aquiclude (302) to a predetermined depth, a sieve tube (305) is provided on the inner wall of the drainage hole, the sieve tube (305) penetrates the aquiclude space (304) and the aquifer (301), and the bottom of the sieve tube (305) is provided at the bottom of the drainage hole.

2. The method for preventing water inrush from overburden layer water by ground pumping according to claim 1 is characterized in that: The main separation layer position is the depth of the main separation layer, and obtaining the main separation layer position includes: Acquiring geological conditions, wherein the geological conditions include the orientation of the aquifer (301) and the orientation of the aquiclude (302); Determine the characteristics of the target rock formation according to the characteristics of the rock formation of the previously mined working face and / or the characteristics of the rock formation of the surrounding similar working faces, wherein the target rock formation includes the rock formation of the aquifer (301) and the rock formation of the aquiclude (302); According to the geological conditions and the characteristics of the target rock formation, the height of the water-conducting fracture zone of the working face is determined by analyzing the overburden fracture theory; The position of the main separation layer is determined according to the geological conditions and the height of the water-conducting fracture zone of the working face.

3. The method for preventing water inrush from overburden layer water pumped out from the ground according to claim 1 is characterized in that: The step of determining the distance between the start of the development of the separation layer and the target working area (202) for opening the cut hole according to the collapse angle of the target rock layer and the thickness of the underlying aquiclude (302) comprises: The distance from the start of the development of the stratum to the target working area (202) for opening the cut is determined according to the collapse angle of the target rock formation, the thickness of the underlying aquiclude (302) and a first formula, wherein the first formula is: l=h·cotθ Wherein, l is the distance from the start of the development of the stratum to the target working area (202) where the cut is made, h is the thickness of the underlying impermeable layer (302), and θ is the collapse angle of the target rock formation.

4. The method for preventing water inrush from overburden layer water by ground pumping according to claim 1 is characterized in that: The method of draining water from the overburden separation layer through the drainage hole comprises: Place the water level gauge and submersible pump (308) into the drainage hole; The submersible pump (308) is controlled to pump out the abscission layer water according to the water level signal fed back by the water level meter.

5. A ground pumping and drainage overburden separation layer water prevention device, characterized in that: Used to implement the method for preventing water inrush from overburden strata by pumping out overburden strata water as claimed in any one of claims 1 to 4, the device for preventing water inrush from overburden strata by pumping out overburden strata water comprises: A separation layer position acquisition module is used to acquire the main separation layer position, and the main separation layer position is used to characterize the position of the main separation layer; A drilling position determination module, used to determine the drilling position (203) according to geological conditions and the position of the cut hole, wherein the drilling position (203) is a drilling position (203) for pumping out stratum water; A drainage hole drilling module is used to drill a drainage hole at the drilling position (203) according to the main separation layer position when the advancing position of the working face meets the preset conditions; as well as, The drainage module is used to drain the water from the overburden separation layer through the drainage hole.

6. A terminal comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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