CN114790915A

CN114790915A - Method, device, terminal and storage medium for preventing water inrush of ground pumping drainage overburden separation layer water

Info

Publication number: CN114790915A
Application number: CN202210429952.XA
Authority: CN
Inventors: 李连刚; 赵高升; 纵峰; 林青; 单景新; 周宇; 张永; 李强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-23
Filing date: 2022-04-23
Publication date: 2022-07-26

Abstract

The invention relates to the technical field of mineral exploitation, in particular to a method, a device, a terminal and a storage medium for preventing water inrush of surface pumping drainage overburden bed separation water. By determining the main separation layer position determining step, the depth of the separation space water level causing water inrush in the target working area can be determined, and then the position of the drilling hole is determined according to geological conditions, so that the separation water can be pumped and discharged as much as possible. By drilling again when the working face advance meets the predetermined conditions, periods of intense overburden activity can be avoided.

Description

Method, device, terminal and storage medium for preventing water inrush of ground pumping drainage overburden separation layer water

Technical Field

The invention relates to the technical field of mineral exploitation, in particular to a method, a device, a terminal and a storage medium for preventing water inrush by pumping and draining overburden separation layer water on the ground.

Background

After the mining of the coal bed of the mine, the overlying strata are unevenly damaged and deformed due to the difference of the thickness, the lithology and the strength of the overlying strata, and transverse fractures, namely, so-called separation, can occur between the upper strata and the lower strata with different hardness degrees.

When the overburden is a water-rich rock and the underburden is a soft rock, a body of water can accumulate in a certain time. The mining of mineral deposits is along with the continuous propulsion and the accumulation of time of working face, water yield and water pressure in the closed separation space are continuously accumulated, when the working face propels a certain distance overlying strata and breaks and destabilizes, the fissure zone is communicated with the separation space, the overlying strata separation water body is caused to be suddenly discharged and fed into the working face operation space, because the underlying strata of the separation space is mostly argillaceous cemented rock, the underlying strata disintegrate in water and feed into the working face operation space along with water after being argillaceous, so that ventilation blocking and operation space silting are caused, and meanwhile, the volatile stability of the coal seam roof strata weakened in water causes the violent pressure on the working face and even the pressure frame, which becomes one of the great hidden dangers influencing mine safety production.

The existing method for preventing and controlling the delamination water mainly comprises grouting and filling a water-bearing layer and constructing a diversion hole in the delamination space to guide water into the underground, and the grouting and filling effect is very little because the permeability coefficient of part of the water-bearing layer is small before mining influence; the construction diversion hole is often affected by rock stratum instability, so that the drilling hole is disturbed, the disintegrated and argillized rock mass blocks the drilling hole, and the drainage water amount is unstable. Therefore, the water inrush preventing method capable of stably and timely evacuating and draining the water body of the separation layer is a key for controlling the disasters.

Based on the above, it is necessary to develop and design a method for preventing water inrush by pumping and draining water from a overburden separation layer on the ground.

Disclosure of Invention

The embodiment of the invention provides a method, a device, a terminal and a storage medium for preventing water inrush by pumping overburden separation water on the ground, which are used for solving the problem of poor effect of preventing and treating water inrush disasters on a working surface caused by separation water in the prior art.

In a first aspect, an embodiment of the present invention provides a method for preventing water inrush from water in a overburden separation layer by ground pumping, including:

acquiring a main abscission layer position, wherein the main abscission layer position is used for representing the position of a main abscission layer;

determining a drilling position according to geological conditions and an open-cut hole position, wherein the drilling position is a drilling position for pumping and draining separation layer water;

when the advancing position of the working face meets the preset condition, drilling a drain hole at the drilling position according to the main separation layer position;

and discharging the water of the overburden separation layer through the water discharge holes.

In one possible implementation manner, the obtaining the main outlier horizon, where the main outlier horizon is a depth of the main outlier, includes:

acquiring a geological condition, wherein the geological condition comprises an aquifer azimuth and a water-resisting layer azimuth;

determining the characteristics of a target rock stratum according to the characteristics of the rock stratum of the working face mined in the past period and/or the characteristics of the rock stratum of the peripheral similar working face, wherein the target rock stratum comprises a rock stratum of an aquifer and a rock stratum of a water-resisting layer;

analyzing through the overburden rock breaking theory according to the geological condition and the characteristics of the target rock stratum, and determining the development height of a water conducting crack zone of the working face;

and determining the main separation layer position according to the geological condition and the development height of the water guide crack zone of the working face.

In one possible implementation, the geological condition comprises: an underlying water barrier thickness, said determining a borehole location based on geological conditions and an open-cut location, comprising:

acquiring the collapse angle of the working face which is mined in the previous period and/or the collapse angles of the similar working faces at the periphery;

determining the collapse angle of the target rock stratum according to the collapse angle of the working face mined in the past period and/or the collapse angles of the similar working faces at the periphery;

determining the distance from the off-layer development starting position to the open-off cut of the target working area according to the collapse angle of the target rock stratum and the thickness of the underlying water barrier layer, and taking the distance from the off-layer development starting position to the open-off cut of the target working area as a target distance;

and acquiring a position on the central axis of the target working area, which is not less than the target distance from the open-off cut of the target working area, as a drilling position in an area of the target working area corresponding to the ground along the propelling direction of the target working area.

acquiring the collapse angle of the working face which is exploited in the previous period and/or the collapse angles of similar working faces at the periphery;

determining the collapse angle of the target rock stratum according to the collapse angle of the working face mined in the previous period and/or the collapse angles of the similar peripheral working faces;

determining the distance from the departure layer starting development position to the cut hole of the target working area according to the collapse angle of the target rock stratum and the thickness of the underlying water-resisting layer, and taking the distance from the departure layer starting development position to the cut hole of the target working area as the target distance;

acquiring an adjacent mined-out working area, wherein the adjacent mined-out working area is a mined-out working area adjacent to a target working area;

and acquiring a position on the axial line of the adjacent mining working area, which has a distance not less than the target distance from the open-off cut of the adjacent mining working area, as a drilling position along the advancing direction of the target working area at a position on the ground corresponding to the adjacent mining working area.

In one possible implementation, the determining, according to the collapse angle of the target rock formation and the thickness of the underlying water-barrier layer, the distance from the position where the formation development starts to be separated from the cut-out of the target working area comprises:

determining the distance from the position where the off-layer development starts to be away from the cut hole of the target working area according to the collapse angle of the target rock stratum, the thickness of the underlying water-resisting layer and a first formula, wherein the first formula is as follows:

l=h·cotθ

wherein l is the distance from the position where the separation layer begins to develop to the cut hole of the target working area, h is the thickness of the underlying water-resisting layer, and theta is the collapse angle of the target rock layer.

In a possible implementation manner, the drilling of the drainage hole at the drilling position according to the main separation layer position when the working face advancing position meets the preset condition comprises the following steps:

when the position of the working face exceeds the drilling position by a preset distance, drilling a drain hole at the drilling position;

the screen pipe penetrates through the separation space and the aquifer, and the bottom of the screen pipe is arranged at the bottom of the drain hole.

In one possible implementation, the draining of the water in the overburden separation layer through the drainage hole includes:

putting the water level gauge and the submersible pump into a drain hole;

and controlling the submersible pump to pump and discharge separated layer water according to a water level signal fed back by the water level gauge.

In a second aspect, an embodiment of the present invention provides a water inrush preventing device for surface pumping and drainage of overburden separation layer water, including:

the system comprises a separation layer position acquisition module, a separation layer position acquisition module and a separation layer position acquisition module, wherein the separation layer position acquisition module is used for acquiring a main separation layer position, and the main separation layer position is used for representing the position of a main separation layer;

the drilling position determining module is used for determining a drilling position according to geological conditions and an open-cut hole position, wherein the drilling position is a drilling position for pumping and draining separation layer water;

the drilling drain hole module is used for drilling a drain hole at the drilling position according to the main separation layer position when the advancing position of the working surface meets the preset condition;

and (c) a second step of,

and the drainage module is used for draining the water in the overburden separation layer through the drainage holes.

In a third aspect, an embodiment of the present invention provides a terminal, including a memory and a processor, where the memory stores a computer program operable on the processor, and the processor executes the computer program to implement the steps of the method according to the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, the present invention provides a computer-readable storage medium, which stores a computer program that, when executed by a processor, implements the steps of the method as described in the first aspect or any one of the possible implementations of the first aspect.

Compared with the prior art, the implementation mode of the invention has the following beneficial effects:

the embodiment of the invention discloses a method for preventing water inrush by pumping and draining overburden separation layer water on the ground, which comprises the steps of firstly obtaining a main separation layer position, wherein the main separation layer position is used for representing the position of a main separation layer, then determining the position of a drilling hole according to geological conditions and the position of a cut hole, then drilling a drainage hole at the drilling hole position according to the main separation layer position when the propulsion position of a working face meets preset conditions, and finally draining the water of the overburden separation layer through the drainage hole. By determining the main separation layer position determining step, the depth of the separation space water level causing water inrush of the target working area can be determined, and then the position of a drilling hole is determined according to geological conditions so as to ensure that the separation water can be pumped and discharged as much as possible. By drilling again when the working face advance meets the predetermined conditions, periods of intense overburden activity can be avoided. By field practice, the method is applied to pump and drain the water in the overburden separation space of the working face from the ground, the water in the overburden separation space of the working face can be stably and timely pumped and drained to the ground, the effect of underground 'waterless' mining is achieved, the goal of preventing water inrush from the overburden separation water is achieved, and the drainage of the overburden separation water is more scientific and controllable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a flow chart of a method for pumping and draining water burst of overburden separation layer on the ground according to an embodiment of the invention;

FIG. 2 is a top perspective view of a target workspace provided by an embodiment of the invention;

FIG. 3 is a schematic cross-sectional view of a target work area provided by an embodiment of the present invention;

FIG. 4 is a functional block diagram of a ground pumping overburden bed separation water inrush prevention device provided by the embodiment of the invention;

fig. 5 is a functional block diagram of a terminal according to an embodiment of the present invention.

In the figure:

201 a goaf;

202 a target work area;

203 a drilling location;

204 central axis of the target working area;

205 adjacent to a goaf workspace;

206 is adjacent to the central axis of the mining working area;

207 a target work surface;

301 an aqueous layer;

302 a water barrier layer;

303 a goaf caving zone;

304 a delamination space;

305 a screen pipe;

307 water conveying pipes;

308 a submersible pump;

309 mining the coal bed;

310 topsoil layer.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

To make the objects, technical solutions and advantages of the present invention more apparent, the following description is given by way of embodiments with reference to the accompanying drawings.

The following is a detailed description of the embodiments of the present invention, which is implemented on the premise of the technical solution of the present invention, and the detailed implementation and the specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.

Fig. 1 is a flow chart of a method for preventing water inrush in a surface pumping overburden separation layer according to an embodiment of the present invention.

As shown in fig. 1, it shows a flow chart of implementation of the method for pumping and draining water from overburden separation layer on the ground according to the embodiment of the present invention, which is detailed as follows:

in step 101, a main outlier level is obtained, which is used to characterize the orientation of the main outlier.

In some embodiments, the primary outlier level is a depth of the primary outlier, step 101 comprises:

acquiring geological conditions, wherein the geological conditions comprise aquifer 301 positions and aquifer 302 positions;

determining the characteristics of a target rock stratum according to the characteristics of the rock stratum of the working face which is mined in the past period and/or the characteristics of the rock stratum of the similar working face at the periphery, wherein the target rock stratum comprises a rock stratum of an aquifer 301 and a rock stratum of a water-resisting layer 302;

Illustratively, as shown in FIG. 2, FIG. 2 shows a top perspective view of target workspace 202.

In the figure, the target work area 202 is the area in which mineral mining is underway, and the target face 207 is progressively advanced from the left to the right. At the far left of the target workspace 202 is a gob 201, the gob 201 being the area mined through the mineral reserve. The central axis of the target work area 202 extends through the target work area 202.

On the lower side of target workspace 202 is contiguous goaf workspace 205, with the central axis of contiguous goaf workspace 205 running through contiguous goaf workspace 205.

Fig. 3 shows a front cross-sectional view of the target work area 202.

In the figure, a hard water-bearing layer 301 is provided below a ground surface topsoil layer 310, and a relatively soft water-resisting layer 302 is provided below the water-bearing layer 301. The mine is exemplified by a coal seam, and the mined coal seam 309 of the target work area 202 is located below the water barrier 302. When the mined coal seam 309 of the target work area 202 is mined, the water barrier 302 collapses downward to form a goaf caving zone 303. Due to differences in formation properties between the water barrier 302 and the aquifer 301, a separation space 304 is formed between the water barrier 302 and the aquifer 301. The water in the water-resisting layer 302 will gradually fill the separation space 304, and when the goaf caving zone 303 expands with the gradual advance of the target working surface 207, cracks will be formed, so that the water in the separation space 304 enters the target working area 202, and an accident, that is, a water inrush, will be caused.

The primary delamination is the location of the primary delamination that causes water breakthrough in the mine, i.e., the delamination location where the water barrier 302 collapses downward, forming a goaf caving zone 303 and fractures open into the delamination and the target operating area, which is typically the lowest point of the delamination.

The lowest position of the delamination water should be specified by the first step of pumping out overburden delamination water to pump out the most delamination water possible. In some applications, the depth of the primary separation layer is determined by determining the orientation of the aquifer 301 and the water barrier 302 based on geological conditions, such as geological and hydrogeological boreholes, obtained prior to the mining operation. The core is analyzed, e.g., by drilling the core, to determine if there is an aquifer 301 and a water barrier 302 above the face, and the water barrier 302 is less hard than the aquifer 301, and the thickness of the layers. Then, according to the rock characteristics of the surrounding aquifer 301 and the rock characteristics of the water-resisting layer 302 and according to the overlying strata fracture theory, the development height of the water-guiding crack zone of the working face can be determined. I.e. the height at which the fissure zone is formed. With the development height of the fractured zone, the main abscission layer position can be determined by combining the geological conditions obtained before.

In step 102, a drilling position 203 is determined according to geological conditions and an open-cut position, wherein the drilling position 203 is a drilling position 203 for pumping water of an isolated layer.

In some embodiments, the geological condition comprises: an underlying water barrier layer 302 thickness, the step 102 comprising:

determining the distance from the departure layer starting development position to the cut-off hole of the target working area 202 according to the collapse angle of the target rock stratum and the thickness of the underlying water barrier layer 302, and taking the distance from the departure layer starting development position to the cut-off hole of the target working area 202 as a target distance;

in the 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 where the distance between the incision and the target working area 202 is not less than the target distance is obtained as a drilling position 203.

acquiring 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;

and acquiring a position on the central axis 206 of the adjacent mining working area, which is not less than the target distance from the adjacent mining working area 205 to the open-off cut of the adjacent mining working area 205, as a drilling position 203 along the advancing direction of the target working area 202 at the position of the adjacent mining working area 205 corresponding to the ground.

In some embodiments, determining the distance from the target formation development start location to the target work area 202 cut according to the collapse angle of the target formation and the underlying water barrier 302 thickness comprises:

determining the distance from the initial development position of the stratum to the cut of the target working area 202 according to the collapse angle of the target rock stratum, the thickness of the underlying water-resisting layer 302 and a first formula, wherein the first formula is as follows:

l=h·cotθ

where l is the distance from the initial development of the formation to the target zone 202 cut, h is the underlying water barrier 302 thickness, and θ is the collapse angle of the target formation.

After the main separation horizon has been determined, the exact orientation of the borehole needs to be determined, illustratively, in one application scenario, drilling over the target workspace, and in another application scenario, drilling in an adjacent workspace of the target workspace 202, which should be an already mined out workspace.

Before determining the borehole orientation, the collapse angle, i.e., the acute angle of the isosceles triangle-like area formed by the collapsed water-barrier 302, should be determined. This collapse angle is typically determined based on the future developed face collapse angles and/or the perimeter similarity face collapse angles.

According to the collapse angle and the formula:

l=h·cotθ

the distance of the borehole from the open-off cut can be determined, where l is the distance from the initial development of the formation to the open-off cut of the target work area 202, h is the thickness of the underlying water barrier 302, θ is the angle of collapse of the target formation, and the open-off cut is the initial operation location of the target work area. The distance from the position where the delamination begins to develop to the incision of the target working area 202 is the target distance.

Borehole position 203 is determined at target work area 202 or a work area adjacent to target work area 202 based on 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 the point of the target distance on the central axis is found in the propelling direction, which is the drilling position 203.

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, a ground area corresponding to the adjacent goaf working area 205 is found according to the adjacent goaf working area 205, a central axis of the ground area is found, a point of a target distance on the central axis is found in a propelling direction of the target working area 202, and this position is the drilling position 203.

In step 103, when the advancing position of the working face meets the preset condition, drilling a drainage hole at the drilling position 203 according to the main separation layer position.

In some embodiments, step 103 comprises:

when the advancing position of the working face meets the preset condition, drilling a drain hole at the drilling position 203 according to the main separation layer position, wherein the method comprises the following steps:

when the position of the working face exceeds the drilling position 203 by a preset distance, drilling a drainage hole at the drilling position 203;

the bottom of the drain hole penetrates through the main separation layer to enter the water-resisting layer 302 by a preset depth, a sieve tube 305 is arranged on the inner wall of the drain hole, the sieve tube 305 penetrates through the separation layer space 304 and the aquifer 301, and the bottom of the sieve tube 305 is arranged at the bottom of the drain hole.

Illustratively, the drilling drainage hole should be determined at a suitable time besides the drilling position 203, for example, in an application scenario, the working face is pushed by the drilling position 20350 and 100m to avoid the severe action period of the overburden, and the construction ground is used for draining the overburden absciss layer water drilling hole.

After drilling, a protective pipe for preventing the collapse of the drilled hole should be arranged on the lower part of the drill hole, and a sieve pipe 305, namely a pipe with holes on the pipe wall, is adopted in one embodiment, so as to prevent the collapse of the newly opened drain hole. The bottom of the drain hole should extend through the entire delaminating space 304 and reach a predetermined depth of the water barrier 302, such as 15 meters in an application scenario, to ensure that the lowest water level in the delaminating space 304 can be pumped up. The screen 305 is placed at the bottom of the drain hole and at the top beyond the top of the aquifer 301.

In step 104, the water of the overburden separation is drained through the drainage holes.

In some embodiments, step 104 comprises:

placing the water level gauge and the submersible pump 308 into a drain hole;

and controlling the submersible pump 308 to pump and discharge the separated layer water according to the water level signal fed back by the water level gauge.

Illustratively, after the hole is opened, a water level gauge and a submersible pump 308 are placed in a water discharge hole, the water level condition of the separation space 304 is reflected by the water level gauge, water in the separation space 304 is extracted by the submersible pump 308, finally, the water extracted by the submersible pump is discharged through a water delivery pipe 307, and the discharged water can be used for production and life. In one application scenario, a signal fed back by the water level gauge is used as a signal of the pumping flow of the submersible pump 308, so that the submersible pump 308 is always below a water level line, the water level is too low, the submersible pump 308 cannot be sufficiently cooled, and the submersible pump 308 is burnt.

The embodiment of the ground pumping drainage overburden bed separation water outburst prevention method comprises the steps of firstly obtaining a main bed separation layer, wherein the main bed separation layer is used for representing the position of the main bed separation layer, then determining a drilling position 203 according to geological conditions and a cut-off position, then drilling a drainage hole at the drilling position 203 according to the main bed separation layer when the advancing position of a working face meets preset conditions, and finally draining overburden bed separation water through the drainage hole. By determining the primary zonal determination step, the depth of the water level in the zonal space 304 that caused the water burst in the target workspace 202 can be determined, and then the borehole location 203 can be determined based on geological conditions to ensure that as much zonal water as possible can be pumped out. By drilling again when the working face advance meets the predetermined conditions, periods of intense overburden activity can be avoided. By field practice, the method is applied to pump and drain the water in the overlying strata separation space 304 of the working face from the ground, the water in the overlying strata separation space 304 of the working face can be stably and timely pumped and drained to the ground, the effect of underground 'waterless' mining is achieved, the aim of preventing the water burst of the separation water is fulfilled, and the separation water drainage is more scientific and controllable.

It should be understood that the sequence numbers of the steps in the above embodiments do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

The following are embodiments of the apparatus of the invention, and for details not described in detail therein, reference may be made to the corresponding method embodiments described above.

Fig. 4 is a functional block diagram of a ground pumping overburden bed separation water inrush preventing device according to an embodiment of the present invention, and referring to fig. 4, the ground pumping overburden bed separation water inrush preventing device 4 includes: a delamination level acquisition module 401, a drilling level determination module 402, a drilled drain hole module 403, and a drainage module 404.

The separation layer position obtaining module 401 is configured to obtain a main separation layer position, where the main separation layer position is used to represent a position of a main separation layer;

a drilling position determining module 402, configured to determine a drilling position 203 according to a geological condition and an open-off-cut position, where the drilling position 203 is the drilling position 203 for pumping the water of the separated layer;

a drilling and draining hole module 403, configured to drill a draining hole at the drilling position 203 according to the main separation layer level when the working surface propulsion position meets a preset condition;

and the number of the first and second groups,

and a drainage module 404 for draining the water of the overburden separation layer through the drainage holes.

Fig. 5 is a functional block diagram of a terminal according to an embodiment of the present invention. As shown in fig. 5, the terminal 5 of this embodiment includes: a processor 500 and a memory 501, the memory 501 having stored therein a computer program 502 executable on the processor 500. The processor 500, when executing the computer program 502, implements the above-described various methods and embodiments of surface pumping overburden bed water surge protection, such as steps 101-104 shown in fig. 1.

Illustratively, the computer program 502 may be partitioned into one or more modules/units that are stored in the memory 501 and executed by the processor 500 to implement the present invention.

The terminal 5 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal 5 may include, but is not limited to, a processor 500, a memory 501. It will be appreciated by those skilled in the art that fig. 5 is merely an example of a terminal 5 and does not constitute a limitation of the terminal 5, and may include more or fewer components than shown, or some components may be combined, or different components, e.g., the terminal may also include input output devices, network access devices, buses, etc.

The Processor 500 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 501 may be an internal storage unit of the terminal 5, such as a hard disk or a 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, Secure Digital, SD Card, Flash Card, and the like, which are 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 for storing 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.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit, and the integrated unit may be implemented in a form of hardware, or may be implemented in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the description of each embodiment is focused on, and for parts that are not described or recited in a certain embodiment, reference may be made to the description of other embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal and method may be implemented in other manners. For example, the above-described apparatus/terminal embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each of the units may exist alone physically, or two or more units may be integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the present invention may also be implemented by a computer program for instructing related hardware to complete all or part of the processes in the method according to the above embodiments, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of the above embodiments of the method and apparatus for pumping and draining overburden water and water burst. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying said computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory, ROM, Random Access Memory, RAM, electrical carrier signal, telecommunications signal, software distribution medium, and the like. It should be noted that the computer readable medium may contain suitable additions or subtractions depending on the requirements of legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media may not include electrical carrier signals or telecommunication signals in accordance with legislation and patent practice.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. A method for preventing water inrush of surface pumping overburden bed separation water is characterized by comprising the following steps:

determining a drilling position (203) according to geological conditions and the open-cut hole position, wherein the drilling position (203) is a drilling position for pumping separation layer water;

when the advancing position of the working face meets the preset condition, drilling a drain hole at the drilling position (203) according to the main separation layer position;

2. The method of claim 1, wherein the primary separation layer level is a depth of the primary separation layer, and the obtaining the primary separation layer level comprises:

acquiring geological conditions, wherein the geological conditions comprise aquifer (301) orientation and aquifer (302) orientation;

determining the characteristics of target rock stratums according to the characteristics of the rock stratums of the working faces which have been exploited in the past period and/or the characteristics of the rock stratums of the similar working faces at the periphery, wherein the target rock stratums comprise rock stratums of an aquifer (301) and rock stratums of a water-resisting layer (302);

3. The method of claim 1, wherein the geological conditions include: an underlying water barrier (302) thickness, the determining a borehole location (203) from geological conditions and an open-cut location, comprising:

determining the distance from the off-layer development starting position to the cut of the target working area (202) according to the collapse angle of the target rock stratum and the thickness of the underlying water barrier (302), and taking the distance from the off-layer development starting position to the cut of the target working area (202) as a target distance;

in the area of the target working area (202) corresponding to the ground, along the advancing direction of the target working area (202), the position on the central axis of the target working area (202) where the distance from the open eye of the target working area (202) to the open eye is not less than the target distance is obtained as the drilling position (203).

4. The method of claim 1, wherein the geological conditions include: an underlying water barrier (302) thickness, the determining a borehole location (203) from geological conditions and an open-cut location, comprising:

determining the distance from the layer separation starting development position to the open-off cut of the target working area (202) according to the collapse angle of the target rock stratum and the thickness of the underlying water-resisting layer (302), and taking the distance from the layer separation starting development position to the open-off cut of the target working area (202) as a target distance;

acquiring an adjacent mined-out working area (205), wherein the adjacent mined-out working area (205) is a mined-out working area adjacent to a target working area (202);

and acquiring a position on the central axis (206) of the adjacent mining working area, which is not less than the target distance from the cutting distance of the adjacent mining working area (205) along the advancing direction of the target working area (202), as a drilling position (203) at the position of the adjacent mining working area (205) corresponding to the ground.

5. The method of claim 3 or 4, wherein the step of determining the distance from the initial development of the target formation to the cut-out of the target working area (202) based on the collapse angle of the target formation and the thickness of the underlying water barrier (302) comprises:

determining a distance from a start-of-formation-off position to a cut in a target working area (202) according to a collapse angle of the target rock formation, a thickness of an underlying water barrier (302), and a first formula, wherein the first formula is:

l=h·cotθ

where l is the distance from the initial development of the formation to the target zone (202) cut, h is the underlying water barrier (302) thickness, and θ is the collapse angle of the target formation.

6. The ground pumping overburden bed separation water outburst prevention method as recited in claim 1, wherein when a working surface propulsion position meets a preset condition, drilling a drainage hole at the drilling position (203) according to the main bed separation layer comprises:

when the position of the working surface exceeds a drilling position (203) by a preset distance, drilling a drainage hole at the drilling position (203);

the bottom of the drain hole penetrates through a main separation layer to enter a water-resisting layer (302) to a preset depth, a sieve pipe (305) is arranged on the inner wall of the drain hole, the sieve pipe (305) penetrates through a separation layer space (304) and a water-bearing layer (301), and the bottom of the sieve pipe (305) is arranged at the bottom of the drain hole.

7. The method of claim 1, wherein the step of discharging the overburden water through the drainage holes comprises:

placing the water level gauge and the submersible pump (308) into a drain hole;

and controlling the submersible pump (308) to pump and drain the separated layer water according to the water level signal fed back by the water level gauge.

8. The utility model provides a water inrush preventing device of ground pump drainage overlying strata abscission layer water which characterized in that includes:

the system comprises a main outlier acquisition module, a outlier acquisition module and a main outlier detection module, wherein the main outlier is used for representing the position of the main outlier;

a drilling position determination module for determining a drilling position (203) according to geological conditions and an open-cut position, wherein the drilling position (203) is a drilling position (203) for pumping the separation water;

the drilling drain hole module is used for drilling a drain hole at the drilling position (203) according to the main separation layer when the propelling position of the working surface meets the preset condition;

and the number of the first and second groups,

and the drainage module is used for draining the water in the overburden separation layer through the drainage hole.

9. A terminal comprising a memory and a processor, the memory having stored therein a computer program operable on the processor, wherein the processor when executing the computer program performs the steps of the method as claimed in any of claims 1 to 7 above.

10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.