Adjacent grouting filling method, filling device and adjacent grouting system

Abstract

The invention provides an adjacent position grouting filling method and device and an adjacent position grouting system.The method comprises the steps that according to the caving zone distribution position and grouting filling capacity of a goaf, an adjacent face mining roadway is determined; drilling holes in the goaf according to the positions of the mining roadways on the adjacent surfaces, and determining a plurality of grouting holes so as to mount a plurality of grouting pipelines through the plurality of grouting holes for slurry filling; in the grouting step, under the condition that the reading of the pressure gauge on the current grouting pipeline reaches a set value, a flow valve of the next grouting pipeline is controlled to be opened, a stop valve of the next grouting pipeline is controlled to be closed, the next grouting pipeline is updated to be the current grouting pipeline, and grouting is conducted on the current grouting pipeline; and the grouting step is repeated until the reading of the pressure gauge on the last grouting pipeline reaches a set value, and slurry filling is controlled to be stopped. The problem that in the prior art, the porosity is high during goaf grouting is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of mining engineering, and in particular to an adjacent grouting filling method, a filling device, a computer-readable storage medium and an adjacent grouting system. Background Art

[0002] In recent years, in the mining paste filling industry, with the enhancement of social environmental awareness and the continuous tightening of environmental protection policies, the resistance to the ground discharge of solid wastes such as gangue and fly ash has become increasingly greater. Due to the large output of coal gangue, the use of coal slurry grouting to treat coal gangue has become a green treatment method. However, the traditional ground grouting method has low filling capacity, cannot effectively reduce the void ratio and ensure the filling quality of the goaf, and cannot be applied to a variety of regional characteristics, and cannot guarantee the applicability in the field of underground filling of solid wastes such as gangue and fly ash. Summary of the invention

[0003] The main purpose of the present application is to provide an adjacent grouting filling method, a filling device, a computer-readable storage medium and an adjacent grouting system, so as to at least solve the problem of high porosity during grouting in goaf areas in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for adjacent grouting filling is provided, the method comprising: determining the adjacent face recovery tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity; drilling into the goaf according to the position of the adjacent face recovery tunnel, determining a plurality of grouting holes so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, the grouting holes corresponding to the grouting pipes one by one, a pressure gauge being disposed at the outlet of the grouting pipe, the pressure gauge being used to detect the flow pressure of the slurry in the grouting pipe; a grouting step, when the indication of the pressure gauge on the current grouting pipe reaches the set value Under the present invention, control the opening of the flow valve of the next grouting pipeline and the closing of the stop valve of the next grouting pipeline, and update the next grouting pipeline to the current grouting pipeline, and grouting is performed to the current grouting pipeline, the current grouting pipeline is the grouting pipeline currently undergoing grouting, the next grouting pipeline is the adjacent next grouting pipeline of the current grouting pipeline, the stop valve is a valve for controlling the stopping of grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry; repeat the grouting steps until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and control the stopping of the slurry filling.

[0005] Optionally, before determining the adjacent mining tunnels based on the distribution position of the collapse zone in the goaf and the grouting filling capacity, the method also includes: obtaining the working face advancement distance, the mining tunnel cross-sectional area, the filling body cross-sectional area, the collapse zone porosity, the effective filling coefficient, the slurry density of the slurry and the slurry mass concentration; calculating the product of the filling body cross-sectional area, the collapse zone porosity and the effective filling coefficient and adding them to the cross-sectional area of ​​the mining tunnel to obtain the filling area; calculating the product of the filling area, the working face advancement distance, the slurry density and the slurry mass concentration to obtain the grouting filling capacity.

[0006] Optionally, before obtaining the working face advancement distance, the cross-sectional area of ​​the mining tunnel, the cross-sectional area of ​​the filling body, the porosity of the collapse zone, the effective filling coefficient, the slurry density and the slurry mass concentration, the method also includes: developing the slurry according to the collapse degree of the collapse zone and the distribution position so that the particle size of the slurry is less than or equal to the set particle size.

[0007] Optionally, according to the position of the adjacent surface mining tunnel, drilling is performed into the goaf to determine a plurality of grouting holes so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, including: drilling from the adjacent surface mining tunnel to the goaf at fixed intervals to obtain a plurality of grouting holes; utilizing the grouting holes to connect the grouting pipe with the chute grouting pipe so as to perform grouting into the chute grouting pipe through the grouting pipe to achieve slurry filling, and the chute grouting pipe is used to fill the goaf with the slurry.

[0008] Optionally, drilling is performed from the adjacent surface mining tunnel toward the goaf at fixed intervals to obtain a plurality of grouting holes, including: determining a plurality of drilling angles according to the distance between the adjacent surface mining tunnel and the goaf and a plurality of segment coal pillars; drilling is performed from the adjacent surface mining tunnel toward the goaf at fixed intervals at the same time according to the plurality of drilling angles to obtain a plurality of grouting holes, wherein the grouting holes correspond one-to-one to the drilling angles.

[0009] Optionally, after drilling into the goaf according to the position of the adjacent surface mining tunnel and determining a plurality of grouting holes to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, the method further includes: controlling to close the flow valve on the grouting pipe in the first grouting hole, injecting water into the grouting pipe until the grouting pipe is filled with water; injecting a first set volume of mortar into the grouting pipe and controlling to increase the opening of the flow valve until the mortar injection is completed, and adjusting the opening of the flow valve to the maximum.

[0010] Optionally, after repeating the grouting step until the pressure indication number on the last grouting hole reaches the set value and controlling to stop the slurry filling, the method further includes: using a grouting pump to fill a second set volume of mortar into the chute grouting pipe; injecting water into a plurality of the grouting pipes until the corresponding grouting pipes are filled with the water, controlling to open a bypass valve on the grouting pipe and to close the flow valve, the bypass valve being installed on the grouting pipe and being used to change the flow direction of the fluid in the grouting pipe to achieve diversion of the fluid.

[0011] According to another aspect of the present application, there is provided an adjacent grouting filling device, the device comprising: a first determining unit, for determining an adjacent face recovery tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity; a second determining unit, for drilling into the goaf according to the position of the adjacent face recovery tunnel, determining a plurality of grouting holes so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, the grouting holes corresponding to the grouting pipes one by one, a pressure gauge being disposed at the outlet of the grouting pipe, the pressure gauge being used to detect the flow pressure of the slurry in the grouting pipe; a grouting unit, for executing the grouting step, when the indication of the pressure gauge on the current grouting pipe reaches In the case of a set value, the flow valve of the next grouting pipeline is controlled to be opened and the stop valve of the next grouting pipeline is closed, and the next grouting pipeline is updated to the current grouting pipeline, and grouting is performed to the current grouting pipeline. The current grouting pipeline is the grouting pipeline currently undergoing grouting, and the next grouting pipeline is the adjacent next grouting pipeline of the current grouting pipeline. The stop valve is a valve for controlling the stop of grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry. A repeating unit is used to repeat the grouting steps until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and control the stop of the slurry filling.

[0012] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute any one of the methods described.

[0013] According to another aspect of the present application, there is provided an adjacent grouting system, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include means for executing any one of the described methods.

[0014] By applying the technical solution of the present application, in the adjacent grouting filling method, first, according to the distribution position of the collapse zone of the goaf and the grouting filling capacity, the adjacent face mining roadway is determined; then, according to the position of the adjacent face mining roadway, a hole is drilled into the goaf to determine a plurality of grouting holes so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe; thereafter, in the grouting step, when the indication of the pressure gauge on the current grouting pipe reaches the set value Under this condition, control is performed to open the flow valve of the next grouting pipeline and close the stop valve of the next grouting pipeline, and the next grouting pipeline is updated to the current grouting pipeline, and grouting is performed to the current grouting pipeline. The current grouting pipeline is the grouting pipeline currently undergoing grouting, and the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline. The stop valve is a valve that controls the stop of grouting, and the flow valve is a valve that adjusts and controls the flow and pressure of the slurry. Finally, the grouting steps are repeated until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and the slurry filling is controlled to stop. The present application determines the adjacent face mining roadway according to the location of the belt drop in the goaf and the filling capacity of the adjacent grouting system, and drills an upward grouting hole through the section coal pillar to the goaf in the adjacent mining roadway; installs a grouting pipe in the grouting hole to fill the goaf with slurry; grouts are sequentially injected into multiple grouting boreholes, and when the pressure indication number on the current grouting pipe reaches a set value, the current grouting borehole is stopped for grouting, and the next grouting hole of the current grouting hole is grouted until the pressure indication number on the grouting pipe of the last grouting hole reaches a set value to complete the slurry filling. The present application solves the problem of high porosity when grouting in the goaf in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A hardware structure block diagram of a mobile terminal for executing an adjacent grouting filling method provided in an embodiment of the present application is shown;

[0016] Figure 2 A schematic flow chart of an adjacent grouting filling method provided according to an embodiment of the present application is shown;

[0017] Figure 3 A schematic diagram of a specific adjacent grouting filling structure provided according to an embodiment of the present application is shown;

[0018] Figure 4 A structural block diagram of an adjacent grouting filling device provided according to an embodiment of the present application is shown.

[0019] The above drawings include the following reference numerals:

[0020] 102. Processor; 104. Memory; 106. Transmission equipment; 108. Input and output equipment; 1. Collapse zone; 2. Adjacent mining tunnel; 3. Grouting hole. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] For the convenience of description, some nouns or terms involved in the embodiments of the present application are explained below:

[0025] The cross-sectional area of ​​a tunnel refers to the cross-sectional area of ​​the mining tunnel during mining operations in a mine or mine.

[0026] As introduced in the background technology, the ground grouting filling method in the prior art has low filling capacity and cannot effectively reduce the porosity and ensure the filling quality of the goaf. In order to solve the problem of high porosity when grouting in the goaf, the embodiments of the present application provide an adjacent grouting filling method, a filling device, a computer-readable storage medium and an adjacent grouting system.

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal of an adjacent grouting filling method according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0029] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the adjacent grouting filling method in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to realize the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned network specific example may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0030] In this embodiment, a method for adjacent grouting filling that runs on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown here.

[0031] Figure 2 Flow chart of the adjacent grouting filling method according to the embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0032] Step S201, determining the adjacent surface mining tunnel according to the distribution position of the collapse zone in the goaf and the grouting filling capacity.

[0033] Specifically, according to the distribution position of the collapse zone in the goaf and the adjacent grouting filling capacity, the mining tunnels adjacent to the working face that currently needs to be filled are determined.

[0034] Step S202, drilling into the goaf according to the position of the adjacent face mining tunnel, determining multiple grouting holes to install multiple grouting pipes through the multiple grouting holes for slurry filling, the grouting holes correspond one to one to the grouting pipes, and a pressure gauge is disposed at the outlet of the grouting pipe, which is used to detect the flow pressure of the slurry in the grouting pipe.

[0035] Specifically, an upward grouting hole, i.e. the above-mentioned grouting hole, is drilled through the section coal pillar toward the goaf in the adjacent mining tunnel, and the adjacent grouting pipeline is connected with the grouting pipe of the working face chute in the grouting hole.

[0036] Step S203, grouting step, when the indication of the pressure gauge on the current grouting pipeline reaches the set value, control to open the flow valve of the next grouting pipeline and close the stop valve of the next grouting pipeline, and update the next grouting pipeline to the current grouting pipeline, and grouting is performed to the current grouting pipeline. The current grouting pipeline is the grouting pipeline currently undergoing grouting, and the next grouting pipeline is the adjacent next grouting pipeline of the current grouting pipeline. The stop valve is a valve that controls the stop of grouting, and the flow valve is a valve that adjusts and controls the flow and pressure of the slurry.

[0037] Specifically, the gangue slurry filling is continued until the pressure on the first grouting pipe reaches the set value, and then the grouting valve of the second grouting pipe, i.e. the above-mentioned flow valve, is opened after the second grouting borehole is connected, and the stop valve on the second grouting pipe is closed to start grouting filling of the second grouting borehole; until the pressure on the second grouting borehole reaches the set value, the third grouting valve is opened after the third grouting borehole is connected, and the stop valve on the third grouting pipe is closed to start grouting filling of the third grouting borehole, and so on.

[0038] Step S204, repeat the grouting steps until the indication of the pressure gauge on the last grouting pipe reaches the set value, and control to stop the slurry filling.

[0039] Specifically, the above grouting steps are repeated until the pressure indicator on the grouting pipe of the last grouting borehole reaches a set value, wherein the set value of each pressure indicator is 80% of the outlet pressure of the corresponding grouting borehole.

[0040] In this embodiment, first, the adjacent surface mining tunnel is determined according to the distribution position of the collapse zone in the goaf and the grouting filling capacity; then, according to the position of the adjacent surface mining tunnel, a hole is drilled into the goaf to determine a plurality of grouting holes so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe; thereafter, in the grouting step, when the indication of the pressure gauge on the current grouting pipe reaches the set value, the control is to open the next A flow valve of a grouting pipeline and a stop valve of the next grouting pipeline are closed, and the next grouting pipeline is updated to the current grouting pipeline, and grouting is performed to the current grouting pipeline. The current grouting pipeline is the grouting pipeline that is currently grouting, and the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline. The stop valve is a valve that controls the stop of grouting, and the flow valve is a valve that adjusts and controls the flow and pressure of the slurry; finally, the grouting steps are repeated until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and the slurry filling is stopped. The present application determines the adjacent face mining tunnel according to the location of the belt drop in the goaf and the filling capacity of the adjacent grouting system, and drills an upward grouting hole through the section coal pillar in the adjacent mining tunnel to the goaf; installs a grouting pipe in the grouting hole to fill the goaf with slurry; grouts are sequentially injected into multiple grouting boreholes, and when the pressure indication number on the current grouting pipe reaches a set value, the current grouting borehole is stopped for grouting, and the next grouting hole of the current grouting hole is grouted until the pressure indication number on the grouting pipe of the last grouting hole reaches a set value to complete the slurry filling. The present application solves the problem of high porosity when grouting in the goaf in the prior art.

[0041] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the ortho-situ grouting filling method of the present application will be described in detail below in combination with specific embodiments.

[0042] In order to improve the safety and efficiency of the filling process, in an optional implementation manner, before the above step S201, the method further includes:

[0043] Step S301, obtaining the working face advancement distance, the cross-sectional area of ​​the mining tunnel, the cross-sectional area of ​​the filling body, the porosity of the collapse zone, the effective filling coefficient, the slurry density and the slurry mass concentration;

[0044] Specifically, the progress plan and actual progress of the working face can be measured and recorded, the width and height of the mining tunnel can be measured, and then the cross-sectional area can be calculated, the width and height of the working face to be filled can be measured, and then the cross-sectional area can be calculated, the porosity can be obtained by measuring and analyzing the internal voids in the collapse zone, the effective filling coefficient can be calculated through field observation and measurement of the compactness and filling effect of the filling body, the slurry density and slurry mass concentration can be obtained during the production or preparation of the required slurry.

[0045] Step S302, calculate the product of the cross-sectional area of ​​the filling body, the porosity of the collapse zone and the effective filling coefficient and add them together with the cross-sectional area of ​​the mining tunnel to obtain the filling area.

[0046] Specifically, the product of the cross-sectional area of ​​the filling body, the porosity of the collapse zone and the effective filling coefficient is calculated and added to the cross-sectional area of ​​the mining tunnel to obtain the filling area S. The formula is S=S2δη, where S2 is the cross-sectional area of ​​the filling body, m2; δ is the porosity of the collapse zone; and η is the effective filling coefficient.

[0047] Step S303, calculate the product of the filling area, the working face advancement distance, the slurry density and the slurry mass concentration to obtain the grouting filling capacity.

[0048] Specifically, the specific calculation formula of the grouting filling capacity Q is Q = LρC (S1 + S), where L is the distance of the working face advancement, in m; S1 is the cross-sectional area of ​​the mining tunnel, in m2; ρ is the density of the slurry, in kg / m3; and C is the mass concentration of the slurry. Through the comprehensive use of data, the effect and capacity of the filling work can be more comprehensively evaluated, thereby improving the safety and efficiency of the filling project.

[0049] In order to improve the quality and performance of grouting filling, so that the porosity is lower and the filling is more uniform, in an optional implementation, before the above step S301, the method further includes:

[0050] Step S401, preparing the slurry according to the collapse degree and distribution position of the collapse zone, so that the particle size of the slurry is less than or equal to the set particle size.

[0051] Specifically, the collapse zone must first be investigated and analyzed to determine the extent of collapse. This can be done through field investigations and sample analysis to determine the extent and characteristics of collapse at different locations. Determine the target particle size of the slurry based on construction requirements and actual needs. Develop the slurry based on the extent and distribution of the collapse zone. This may include using different grinding equipment and processes to achieve the refinement and homogenization of the slurry particles to ensure that the particle size meets the requirements. For example, the particle size of the slurry is ≤0.1mm. By developing the slurry, the particle size can be less than or equal to the set particle size. This can improve the quality and performance of grouting filling, making the porosity lower and the filling more uniform. At the same time, it can also reduce energy consumption and costs in subsequent construction processes, improve filling efficiency and reduce filling costs.

[0052] In order to effectively fill the goaf area, in an optional implementation manner, the above step S202 includes:

[0053] Step S2021, drilling from the adjacent surface mining tunnel to the goaf at fixed intervals to obtain multiple grouting holes.

[0054] Specifically, the position and number of holes to be drilled are determined based on the size and shape of the goaf where grouting is required. According to the predetermined position and number, when the adjacent working face has become a goaf, upward inclined holes are drilled from the adjacent face mining tunnel through the section coal pillar to the adjacent goaf at regular intervals and casing is lowered. The adjacent grouting drilling holes are switched back and forth, and holes are drilled in the adjacent face mining tunnel to obtain multiple grouting holes.

[0055] Step S2022, using the grouting hole to connect the grouting pipeline with the slurry delivery pipe in the chute so as to inject grout into the slurry delivery pipe through the grouting pipeline to achieve slurry filling, and the slurry delivery pipe in the chute is used to fill the goaf with slurry.

[0056] Specifically, the grouting pipeline formed by the casing in the grouting hole is connected with the grouting pipeline of the working face. The goaf can be filled to ensure the stability of the goaf and avoid the occurrence of geological disasters. During the grouting and grouting process, the goaf area can be effectively filled to improve the safety and stability of the working face.

[0057] In order to improve the grouting effect and ensure the stability of the coal pillar, in an optional implementation manner, the above step S2021 includes:

[0058] Step S20211, determine multiple drilling angles according to the distance between the adjacent mining tunnels and the goaf and multiple sections of coal pillars.

[0059] Specifically, multiple drilling angles are determined based on the distance between the adjacent surface mining roadway and the goaf and multiple sections of coal pillars, usually with the angles gradually increasing from the adjacent surface mining roadway to the goaf.

[0060] Step S20212, drilling from the adjacent mining tunnel to the goaf at fixed intervals according to multiple drilling angles to obtain multiple grouting holes, and the grouting holes correspond to the drilling angles one by one.

[0061] Specifically, at a certain drilling angle, drilling is performed from the adjacent mining tunnel to the goaf at fixed intervals to form multiple grouting holes. This ensures that the grouting material can fully fill the cracks and voids inside the coal pillar, thereby enhancing the stability of the coal pillar and reducing the occurrence of geological disasters such as coal seam collapse and water inrush. At the same time, by reasonably determining the drilling angle and the location of the grouting hole, the grouting material can be used to the greatest extent, the grouting effect can be improved, and the stability of the coal pillar can be ensured.

[0062] In order to improve the uniformity and stability of the grouting effect, in an optional implementation, after the above step S202, the method further includes:

[0063] Step S501, controlling the closing of the flow valve on the grouting pipe in the first grouting hole, and injecting water into the grouting pipe until the grouting pipe is filled with water.

[0064] Specifically, close the flow valve on the grouting pipe in the first grouting hole to ensure that no water flows into the grouting pipe along the channel, and start injecting water into the grouting pipe until the grouting pipe is full of water. This ensures that the air in the grouting pipe is discharged to prevent bubbles from appearing in the subsequent grouting process to affect the uniformity of the mortar.

[0065] Step S502, injecting a first set volume of mortar into the grouting pipe and controlling the opening of the flow valve to increase until the mortar injection is completed, and at the same time adjusting the opening of the flow valve to the maximum.

[0066] Specifically, according to the first set volume of mortar, mortar is started to be injected into the grouting pipe, and the opening of the flow valve is controlled to be increased until the mortar injection is completed to ensure that the full pipe is in a flowing state.

[0067] In order to ensure the stability and safety of the coal mine project, in an optional implementation manner, after the above step S204, the method further includes:

[0068] Step S601, using a grouting pump to fill a second set volume of grout into the slurry delivery pipe of the chute.

[0069] Specifically, the grouting pump fills the mortar for waterproofing. The waterproofing treatment of the grouting borehole can prevent groundwater from seeping into the project from the borehole, ensuring the stability and safety of the project.

[0070] Step S602, inject water into multiple grouting pipes until the corresponding grouting pipes are full of water, control the bypass valve on the grouting pipe to open and close the flow valve, the bypass valve is installed on the grouting pipe, and can be used to change the flow direction of the fluid in the grouting pipe to achieve fluid diversion.

[0071] Specifically, after the mortar is filled, water is injected to clean the grouting pipeline. When the water reaches the grouting borehole, the bypass valve is opened and the flow valve is closed to lead the water to the original sedimentation tank and then discharged to the mine water tank through the ditch. Cleaning the grouting pipeline can ensure the smooth flow of the pipeline, avoid blockage and affect the use of the project.

[0072] This embodiment relates to a specific adjacent grouting filling method, such as Figure 3 As shown, the following steps are included:

[0073] Step S1: according to the distribution position and grouting filling capacity of the collapse zone 1 in the goaf, determine the adjacent face recovery roadway 2, drill an upward grouting hole 3 through the section coal pillar toward the goaf in the adjacent recovery roadway 2, and connect the adjacent grouting pipe with the grouting pipe of the working face chute in the grouting hole 3;

[0074] Step S2: close the flow valve on the grouting pipe in the first grouting hole 3, and then use the grouting pump to inject water into the grouting pipe of the chute until the pipe is full and then start to inject mortar, adjust the flow gate valve opening to ensure the full pipe flow state, and finally fully open the flow valve after injecting the slurry; ② continue to add slurry filling until the pressure on the first grouting hole 3 expresses the set value, connect the second grouting hole 3 and open the second grouting valve, close the flow valve on the adjacent grouting pipe in the second grouting hole 3, and start grouting filling of the second adjacent grouting pipe; ③ until the pressure on the second adjacent grouting pipe expresses the set value, connect the third grouting hole 3 and open the flow valve on the third adjacent grouting pipe, close the stop valve on the third grouting adjacent grouting pipe, and start grouting filling of the third grouting hole 3; cycle ①, ②, ③ until the pressure indication number on the last grouting hole 3 reaches the set value, and the grouting pump fills the mortar for water isolation;

[0075] Step S3: After the mortar is filled, water is injected to clean the pipeline. When the water reaches the grouting hole 3, the bypass valve is opened and the flow valve is closed to lead the water to the original sedimentation tank and discharge it to the mine water tank through the ditch.

[0076] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0077] The present application embodiment also provides a kind of adjacent grouting filling device, it should be noted that the adjacent grouting filling device of the present application embodiment can be used to perform the adjacent grouting filling method provided by the present application embodiment. The device is used to realize the above-mentioned embodiment and preferred embodiment, and the description has been made no more. As used below, the term "module" can realize the combination of software and / or hardware of the predetermined function. Although the device described in the following embodiments is preferably realized with software, the realization of hardware, or the combination of software and hardware is also possible and conceived.

[0078] The following is an introduction to the ortho-situ grouting filling device provided in the embodiments of the present application.

[0079] Figure 4 is a structural block diagram of an adjacent grouting filling device according to an embodiment of the present application. Figure 4 As shown, the device comprises:

[0080] The first determination unit 10 is used to determine the adjacent surface mining tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity.

[0081] Specifically, according to the distribution position of the collapse zone in the goaf and the adjacent grouting filling capacity, the mining tunnels adjacent to the working face that currently needs to be filled are determined.

[0082] The second determination unit 20 is used to drill holes into the goaf according to the position of the adjacent face mining tunnel, determine multiple grouting holes, and install multiple grouting pipes through the multiple grouting holes for slurry filling. The grouting holes correspond to the grouting pipes one by one. A pressure gauge is provided at the outlet of the grouting pipe. The pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe.

[0083] Specifically, an upward grouting hole, i.e. the above-mentioned grouting hole, is drilled through the section coal pillar toward the goaf in the adjacent mining tunnel, and the adjacent grouting pipeline is connected with the grouting pipe of the working face chute in the grouting hole.

[0084] The grouting unit 30 is used to execute the grouting step. When the indication of the pressure gauge on the current grouting pipeline reaches the set value, it controls to open the flow valve of the next grouting pipeline and close the stop valve of the next grouting pipeline, and updates the next grouting pipeline to the current grouting pipeline, and grouting is performed on the current grouting pipeline. The current grouting pipeline is the grouting pipeline currently undergoing grouting, and the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline. The stop valve is a valve that controls to stop grouting, and the flow valve is a valve that adjusts and controls the flow and pressure of the slurry.

[0085] Specifically, the gangue slurry filling is continued until the pressure on the first grouting pipe reaches the set value, and then the grouting valve of the second grouting pipe, i.e. the above-mentioned flow valve, is opened after the second grouting borehole is connected, and the stop valve on the second grouting pipe is closed to start grouting filling of the second grouting borehole; until the pressure on the second grouting borehole reaches the set value, the third grouting valve is opened after the third grouting borehole is connected, and the stop valve on the third grouting pipe is closed to start grouting filling of the third grouting borehole, and so on.

[0086] The repeating unit 40 is used to repeat the grouting steps until the indication of the pressure gauge on the last grouting pipeline reaches a set value, and the slurry filling is stopped.

[0087] Specifically, the above grouting steps are repeated until the pressure indicator on the grouting pipe of the last grouting borehole reaches a set value, wherein the set value of each pressure indicator is 80% of the outlet pressure of the corresponding grouting borehole.

[0088] In this embodiment, the first determination unit is used to determine the adjacent face mining tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity; the second determination unit is used to drill into the goaf according to the position of the adjacent face mining tunnel, determine multiple grouting holes, and install multiple grouting pipes through the multiple grouting holes for slurry filling. The grouting holes correspond to the grouting pipes one by one. The outlet of the grouting pipe is provided with a pressure gauge, which is used to detect the flow pressure of the slurry in the grouting pipe; the grouting unit is used to execute the grouting step. When the indication of the pressure gauge on the current grouting pipe reaches the set value, Next, control to open the flow valve of the next grouting pipeline and to close the stop valve of the next grouting pipeline, and update the next grouting pipeline to the current grouting pipeline, and grouting is carried out to the current grouting pipeline. The current grouting pipeline is the grouting pipeline currently undergoing grouting, and the next grouting pipeline is the adjacent next grouting pipeline of the current grouting pipeline. The stop valve is a valve for controlling to stop grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry. A repeating unit is used to repeat the grouting steps until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and control to stop the slurry filling. The present application determines the adjacent face mining tunnel according to the location of the belt drop in the goaf and the filling capacity of the adjacent grouting system, and drills an upward grouting hole through the section coal pillar in the adjacent mining tunnel to the goaf; installs a grouting pipe in the grouting hole to fill the goaf with slurry; grouts are sequentially injected into multiple grouting boreholes, and when the pressure indication number on the current grouting pipe reaches a set value, the current grouting borehole is stopped for grouting, and the next grouting hole of the current grouting hole is grouted until the pressure indication number on the grouting pipe of the last grouting hole reaches a set value to complete the slurry filling. The present application solves the problem of high porosity when grouting in the goaf in the prior art.

[0089] In order to improve the safety and efficiency of the filling process, in an optional embodiment, the device further includes:

[0090] An acquisition unit is used to acquire the working face advancement distance, the mining roadway cross-sectional area, the filling body cross-sectional area, the collapse zone porosity, the effective filling coefficient, the slurry density and the slurry mass concentration of the slurry before determining the adjacent face mining roadway according to the distribution position of the collapse zone of the goaf and the grouting filling capacity;

[0091] Specifically, the progress plan and actual progress of the working face can be measured and recorded, the width and height of the mining tunnel can be measured, and then the cross-sectional area can be calculated, the width and height of the working face to be filled can be measured, and then the cross-sectional area can be calculated, the porosity can be obtained by measuring and analyzing the internal voids in the collapse zone, the effective filling coefficient can be calculated through field observation and measurement of the compactness and filling effect of the filling body, the slurry density and slurry mass concentration can be obtained during the production or preparation of the required slurry.

[0092] The first calculation unit is used to calculate the product of the cross-sectional area of ​​the filling body, the porosity of the collapse zone and the effective filling coefficient and add them to the cross-sectional area of ​​the mining tunnel to obtain the filling area.

[0093] Specifically, the product of the cross-sectional area of ​​the filling body, the porosity of the collapse zone and the effective filling coefficient is calculated and added to the cross-sectional area of ​​the mining tunnel to obtain the filling area S. The formula is S=S2δη, where S2 is the cross-sectional area of ​​the filling body, m2; δ is the porosity of the collapse zone; and η is the effective filling coefficient.

[0094] The second calculation unit is used to calculate the product of the filling area, the working face advancement distance, the slurry density and the slurry mass concentration to obtain the grouting filling capacity.

[0095] Specifically, the specific calculation formula of the grouting filling capacity Q is Q = LρC (S1 + S), where L is the distance of the working face advancement, in m; S1 is the cross-sectional area of ​​the mining tunnel, in m2; ρ is the density of the slurry, in kg / m3; and C is the mass concentration of the slurry. Through the comprehensive use of data, the effect and capacity of the filling work can be more comprehensively evaluated, thereby improving the safety and efficiency of the filling project.

[0096] In order to improve the quality and performance of grouting filling, so that the porosity is lower and the filling is more uniform, in an optional embodiment, the device also includes:

[0097] The research and development unit is used to develop the slurry according to the collapse degree and distribution position of the collapse zone before obtaining the working face advancement distance, the cross-sectional area of ​​the mining tunnel, the cross-sectional area of ​​the filling body, the porosity of the collapse zone, the effective filling coefficient, the slurry density and the slurry mass concentration, so that the particle size of the slurry is less than or equal to the set particle size.

[0098] Specifically, the collapse zone must first be investigated and analyzed to determine the extent of collapse. This can be done through field investigations and sample analysis to determine the extent and characteristics of collapse at different locations. Determine the target particle size of the slurry based on construction requirements and actual needs. Develop the slurry based on the extent and distribution of the collapse zone. This may include using different grinding equipment and processes to achieve the refinement and homogenization of the slurry particles to ensure that the particle size meets the requirements. For example, the particle size of the slurry is ≤0.1mm. By developing the slurry, the particle size can be less than or equal to the set particle size. This can improve the quality and performance of grouting filling, making the porosity lower and the filling more uniform. At the same time, it can also reduce energy consumption and costs in subsequent construction processes, improve filling efficiency and reduce filling costs.

[0099] In order to effectively fill the goaf area, in an optional implementation manner, the second determining unit includes:

[0100] The drilling module drills from the adjacent mining tunnel to the goaf at fixed intervals to obtain multiple grouting holes.

[0101] Specifically, the position and number of holes to be drilled are determined based on the size and shape of the goaf where grouting is required. According to the predetermined position and number, when the adjacent working face has become a goaf, upward inclined holes are drilled from the adjacent face mining tunnel through the section coal pillar to the adjacent goaf at regular intervals and casing is lowered. The adjacent grouting drilling holes are switched back and forth, and holes are drilled in the adjacent face mining tunnel to obtain multiple grouting holes.

[0102] The connecting module connects the grouting pipe with the slurry conveying pipe in the chute by using the grouting hole so as to realize slurry filling by grouting into the slurry conveying pipe in the chute through the grouting pipe. The slurry conveying pipe in the chute is used to fill the goaf with slurry.

[0103] Specifically, the grouting pipeline formed by the casing in the grouting hole is connected with the grouting pipeline of the working face. The goaf can be filled to ensure the stability of the goaf and avoid the occurrence of geological disasters. During the grouting and grouting process, the goaf area can be effectively filled to improve the safety and stability of the working face.

[0104] In order to improve the grouting effect and ensure the stability of the coal pillar, in an optional implementation, the drilling module includes:

[0105] The first determination submodule determines multiple drilling angles according to the distance between the adjacent surface mining tunnel and the goaf and multiple section coal pillars.

[0106] Specifically, multiple drilling angles are determined based on the distance between the adjacent surface mining roadway and the goaf and multiple sections of coal pillars, usually with the angles gradually increasing from the adjacent surface mining roadway to the goaf.

[0107] The drilling submodule drills from the adjacent mining tunnel to the goaf at fixed intervals according to multiple drilling angles to obtain multiple grouting holes, which correspond to the drilling angles one by one.

[0108] Specifically, at a certain drilling angle, drilling is performed from the adjacent mining tunnel to the goaf at fixed intervals to form multiple grouting holes. This ensures that the grouting material can fully fill the cracks and voids inside the coal pillar, thereby enhancing the stability of the coal pillar and reducing the occurrence of geological disasters such as coal seam collapse and water inrush. At the same time, by reasonably determining the drilling angle and the location of the grouting hole, the grouting material can be used to the greatest extent, the grouting effect can be improved, and the stability of the coal pillar can be ensured.

[0109] In order to improve the uniformity and stability of the grouting effect, in an optional embodiment, the device further includes:

[0110] The first control unit is used to drill holes into the goaf according to the position of the adjacent face mining tunnel, determine multiple grouting holes, install multiple grouting pipes through the multiple grouting holes for slurry filling, control the closing of the flow valve on the grouting pipe in the first grouting hole, and inject water into the grouting pipe until the grouting pipe is filled with water.

[0111] Specifically, close the flow valve on the grouting pipe in the first grouting hole to ensure that no water flows into the grouting pipe along the channel, and start injecting water into the grouting pipe until the grouting pipe is full of water. This ensures that the air in the grouting pipe is discharged to prevent bubbles from appearing in the subsequent grouting process to affect the uniformity of the mortar.

[0112] The second control unit is used to inject a first set volume of mortar into the grouting pipe and control the flow valve to increase the opening until the mortar injection is completed, and at the same time adjust the opening of the flow valve to the maximum.

[0113] Specifically, according to the first set volume of mortar, mortar is started to be injected into the grouting pipe, and the opening of the flow valve is controlled to be increased until the mortar injection is completed to ensure that the full pipe is in a flowing state.

[0114] In order to ensure the stability and safety of the coal mine project, in an optional implementation manner, the device further includes:

[0115] The first filling unit is used to repeat the grouting steps until the pressure indication number on the last grouting hole reaches a set value, and then control the slurry filling to stop, and then use the grouting pump to fill the second set capacity of mortar into the chute slurry pipe.

[0116] Specifically, the grouting pump fills the mortar for waterproofing. The waterproofing treatment of the grouting borehole can prevent groundwater from seeping into the project from the borehole, ensuring the stability and safety of the project.

[0117] The second filling unit is used to inject water into multiple grouting pipes until the corresponding grouting pipes are full of water, control the opening of the bypass valve on the grouting pipe and close the flow valve. The bypass valve is installed on the grouting pipe and can be used to change the flow direction of the fluid in the grouting pipe to achieve fluid diversion.

[0118] Specifically, after the mortar is filled, water is injected to clean the grouting pipeline. When the water reaches the grouting borehole, the bypass valve is opened and the flow valve is closed to lead the water to the original sedimentation tank and then discharged to the mine water tank through the ditch. Cleaning the grouting pipeline can ensure the smooth flow of the pipeline, avoid blockage and affect the use of the project.

[0119] The above-mentioned adjacent grouting filling device includes a processor and a memory. The above-mentioned first determination unit, the second determination unit and the grouting unit are all stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize the corresponding functions. The above-mentioned modules are all located in the same processor; or, the above-mentioned modules are located in different processors in the form of any combination.

[0120] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be provided, and the problem of high porosity during grouting in the goaf in the prior art can be solved by adjusting kernel parameters.

[0121] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0122] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the adjacent grouting filling method.

[0123] Specifically, the adjacent grouting filling method includes:

[0124] Step S201, determining the adjacent face mining tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity;

[0125] Step S202, drilling into the goaf according to the position of the adjacent face mining tunnel, determining a plurality of grouting holes, and installing a plurality of grouting pipes through the plurality of grouting holes for slurry filling, wherein the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe;

[0126] Step S203, a grouting step, when the indication of the pressure gauge on the current grouting pipeline reaches the set value, control to open the flow valve of the next grouting pipeline and close the stop valve of the next grouting pipeline, and update the next grouting pipeline to the current grouting pipeline, and grouting is performed on the current grouting pipeline, the current grouting pipeline is the grouting pipeline currently being grouted, the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline, the stop valve is a valve for controlling to stop grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry;

[0127] Step S204, repeat the grouting steps until the indication of the pressure gauge on the last grouting pipe reaches the set value, and control to stop the slurry filling.

[0128] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the above-mentioned adjacent grouting filling method is executed when the above-mentioned program is run.

[0129] Specifically, the adjacent grouting filling method includes:

[0130] Step S201, determining the adjacent face mining tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity;

[0131] Step S202, drilling into the goaf according to the position of the adjacent face mining tunnel, determining a plurality of grouting holes, and installing a plurality of grouting pipes through the plurality of grouting holes for slurry filling, wherein the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe;

[0132] Step S203, a grouting step, when the indication of the pressure gauge on the current grouting pipeline reaches the set value, control to open the flow valve of the next grouting pipeline and close the stop valve of the next grouting pipeline, and update the next grouting pipeline to the current grouting pipeline, and grouting is performed on the current grouting pipeline, the current grouting pipeline is the grouting pipeline currently being grouted, the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline, the stop valve is a valve for controlling to stop grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry;

[0133] Step S204, repeat the grouting steps until the indication of the pressure gauge on the last grouting pipe reaches the set value, and control to stop the slurry filling.

[0134] An embodiment of the present invention provides an adjacent grouting system, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, at least the following steps are implemented:

[0135] Step S201, determining the adjacent face mining tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity;

[0136] Step S202, drilling into the goaf according to the position of the adjacent face mining tunnel, determining a plurality of grouting holes, and installing a plurality of grouting pipes through the plurality of grouting holes for slurry filling, wherein the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe;

[0137] Step S203, a grouting step, when the indication of the pressure gauge on the current grouting pipeline reaches the set value, control to open the flow valve of the next grouting pipeline and close the stop valve of the next grouting pipeline, and update the next grouting pipeline to the current grouting pipeline, and grouting is performed on the current grouting pipeline, the current grouting pipeline is the grouting pipeline currently being grouted, the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline, the stop valve is a valve for controlling to stop grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry;

[0138] Step S204, repeat the grouting steps until the indication of the pressure gauge on the last grouting pipe reaches the set value, and control to stop the slurry filling.

[0139] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0140] Step S201, determining the adjacent face mining tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity;

[0141] Step S202, drilling into the goaf according to the position of the adjacent face mining tunnel, determining a plurality of grouting holes, and installing a plurality of grouting pipes through the plurality of grouting holes for slurry filling, wherein the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe;

[0142] Step S203, a grouting step, when the indication of the pressure gauge on the current grouting pipeline reaches the set value, control to open the flow valve of the next grouting pipeline and close the stop valve of the next grouting pipeline, and update the next grouting pipeline to the current grouting pipeline, and grouting is performed on the current grouting pipeline, the current grouting pipeline is the grouting pipeline currently being grouted, the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline, the stop valve is a valve for controlling to stop grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry;

[0143] Step S204, repeat the grouting steps until the indication of the pressure gauge on the last grouting pipe reaches the set value, and control to stop the slurry filling.

[0144] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0145] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0146] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0147] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0148] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0149] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0150] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0151] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0152] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0153] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0154] 1) The adjacent grouting filling method of the present application first determines the adjacent face mining roadway according to the distribution position of the collapse zone of the goaf and the grouting filling capacity; then, according to the position of the adjacent face mining roadway, a hole is drilled into the goaf to determine a plurality of grouting holes so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe; then, in the grouting step, when the indication of the pressure gauge on the current grouting pipe reaches the set value, Control to open the flow valve of the next grouting pipeline and close the stop valve of the next grouting pipeline, and update the next grouting pipeline to the current grouting pipeline, and grouting is carried out to the current grouting pipeline. The current grouting pipeline is the grouting pipeline currently undergoing grouting, and the next grouting pipeline is the adjacent next grouting pipeline of the current grouting pipeline. The stop valve is a valve for controlling the stop of grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry; finally, repeat the grouting steps until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and control to stop the slurry filling. The present application determines the adjacent face mining tunnel according to the location of the belt drop in the goaf and the filling capacity of the adjacent grouting system, and drills an upward grouting hole through the section coal pillar in the adjacent mining tunnel to the goaf; installs a grouting pipe in the grouting hole to fill the goaf with slurry; grouts are sequentially injected into multiple grouting boreholes, and when the pressure indication number on the current grouting pipe reaches a set value, the current grouting borehole is stopped for grouting, and the next grouting hole of the current grouting hole is grouted until the pressure indication number on the grouting pipe of the last grouting hole reaches a set value to complete the slurry filling. The present application solves the problem of high porosity when grouting in the goaf in the prior art.

[0155] 2) The adjacent grouting filling device of the present application comprises a first determining unit, which is used to determine the adjacent face mining tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity; a second determining unit, which is used to drill holes into the goaf according to the position of the adjacent face mining tunnel, determine a plurality of grouting holes, and install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, wherein the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe; a grouting unit, which is used to execute the grouting step, and when the indication of the pressure gauge on the current grouting pipe reaches the set pressure, the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe. Under the condition of fixed value, the flow valve of the next grouting pipeline is controlled to be opened and the stop valve of the next grouting pipeline is closed, and the next grouting pipeline is updated to the current grouting pipeline, and grouting is carried out to the current grouting pipeline. The current grouting pipeline is the grouting pipeline currently undergoing grouting, and the next grouting pipeline is the adjacent next grouting pipeline of the current grouting pipeline. The stop valve is the valve for controlling the stop of grouting, and the flow valve is the valve for adjusting and controlling the flow and pressure of the slurry. The repeating unit is used to repeat the grouting steps until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and the slurry filling is controlled to be stopped. The present application determines the adjacent face mining tunnel according to the location of the belt drop in the goaf and the filling capacity of the adjacent grouting system, and drills an upward grouting hole through the section coal pillar in the adjacent mining tunnel to the goaf; installs a grouting pipe in the grouting hole to fill the goaf with slurry; grouts are sequentially injected into multiple grouting boreholes, and when the pressure indication number on the current grouting pipe reaches a set value, the current grouting borehole is stopped for grouting, and the next grouting hole of the current grouting hole is grouted until the pressure indication number on the grouting pipe of the last grouting hole reaches a set value to complete the slurry filling. The present application solves the problem of high porosity when grouting in the goaf in the prior art.

[0156] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ortho-site grouting filling method, characterized in that: The method comprises: Determine the adjacent mining tunnel according to the distribution of the collapse zone in the goaf and the grouting filling capacity; According to the position of the adjacent face mining roadway, drilling is performed into the goaf, and a plurality of grouting holes are determined so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, wherein the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe; A grouting step, when the indication of the pressure gauge on the current grouting pipeline reaches a set value, controlling to open the flow valve of the next grouting pipeline and to close the stop valve of the next grouting pipeline, and updating the next grouting pipeline to the current grouting pipeline, grouting is performed to the current grouting pipeline, the current grouting pipeline is the grouting pipeline currently being grouted, the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline, the stop valve is a valve for controlling to stop grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry; The grouting steps are repeated until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and the slurry filling is stopped by control.

2. The method according to claim 1, characterized in that Before determining the adjacent face mining tunnel according to the distribution position of the collapse zone and the grouting filling capacity of the goaf, the method further includes: Obtaining the working face advancement distance, the cross-sectional area of ​​the mining tunnel, the cross-sectional area of ​​the filling body, the porosity of the collapse zone, the effective filling coefficient, the slurry density and the slurry mass concentration of the slurry; Calculate the product of the cross-sectional area of ​​the filling body, the porosity of the collapse zone and the effective filling coefficient and add them to the cross-sectional area of ​​the mining roadway to obtain the filling area; The product of the filling area, the working face advancement distance, the slurry density and the slurry mass concentration is calculated to obtain the grouting filling capacity.

3. The method according to claim 2, characterized in that Before obtaining the working face advancement distance, the cross-sectional area of ​​the mining tunnel, the cross-sectional area of ​​the filling body, the porosity of the collapse zone, the effective filling coefficient, the slurry density and the slurry mass concentration of the slurry, the method further comprises: The slurry is prepared according to the collapse degree of the collapse zone and the distribution position so that the particle size of the slurry is less than or equal to the set particle size.

4. The method according to claim 1, characterized in that According to the position of the adjacent face mining roadway, drilling is performed into the goaf, and a plurality of grouting holes are determined so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, including: Drilling from the adjacent face mining tunnel to the goaf at fixed intervals to obtain a plurality of grouting holes; The grouting hole is used to connect the grouting pipeline with the slurry conveying pipe in the chute so as to inject grout into the slurry conveying pipe in the chute through the grouting pipeline to achieve slurry filling. The slurry conveying pipe in the chute is used to fill the goaf with the slurry.

5. The method according to claim 4, characterized in that Drilling from the adjacent face mining tunnel to the goaf at fixed intervals to obtain a plurality of grouting holes includes: Determine multiple drilling angles according to the distance between the adjacent face mining roadway and the goaf and multiple section coal pillars; According to the multiple drilling angles, drilling is performed from the adjacent surface mining tunnel to the goaf at fixed intervals to obtain multiple grouting holes, and the grouting holes correspond to the drilling angles one by one.

6. The method according to claim 1, characterized in that After drilling into the goaf according to the position of the adjacent face mining tunnel, and determining a plurality of grouting holes so as to install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, the method further comprises: Controlling to close the flow valve on the grouting pipe in the first grouting hole, and injecting water into the grouting pipe until the grouting pipe is full of water; A first set volume of mortar is injected into the grouting pipe and the opening of the flow valve is controlled to be increased until the mortar injection is completed, and at the same time, the opening of the flow valve is adjusted to the maximum.

7. The method according to claim 4, characterized in that After repeating the grouting step until the pressure indicator on the last grouting hole reaches the set value and controlling to stop the slurry filling, the method further includes: Filling the grouting pipe with a second set volume of grout using a grouting pump; Water is injected into the plurality of grouting pipes until the corresponding grouting pipes are filled with the water, and a bypass valve on the grouting pipe is controlled to open and the flow valve is closed. The bypass valve is installed on the grouting pipe and can be used to change the flow direction of the fluid in the grouting pipe to achieve diversion of the fluid.

8. An adjacent grouting filling device, characterized in that: The device comprises: The first determination unit is used to determine the adjacent face mining tunnel according to the distribution position of the collapse zone of the goaf and the grouting filling capacity; A second determination unit is used to drill holes into the goaf according to the position of the adjacent face mining roadway, determine a plurality of grouting holes, and install a plurality of grouting pipes through the plurality of grouting holes for slurry filling, wherein the grouting holes correspond to the grouting pipes one by one, and a pressure gauge is disposed at the outlet of the grouting pipe, and the pressure gauge is used to detect the flow pressure of the slurry in the grouting pipe; A grouting unit is used to perform a grouting step. When the indication of the pressure gauge on the current grouting pipeline reaches a set value, the flow valve of the next grouting pipeline is controlled to be opened and the stop valve of the next grouting pipeline is closed, and the next grouting pipeline is updated to the current grouting pipeline, and grouting is performed to the current grouting pipeline. The current grouting pipeline is the grouting pipeline currently being grouted, and the next grouting pipeline is the next grouting pipeline adjacent to the current grouting pipeline. The stop valve is a valve for controlling the stop of grouting, and the flow valve is a valve for adjusting and controlling the flow and pressure of the slurry; A repeating unit is used to repeat the grouting steps until the indication of the pressure gauge on the last grouting pipeline reaches the set value, and control the slurry filling to stop.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method according to any one of claims 1 to 7.

10. An adjacent grouting system, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of claims 1 to 7.

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