Dynamic crack ecological water storage device and method for coal mining subsidence area

Abstract

The present invention provides a dynamic crack ecological water storage device and method in a coal mining subsidence area. The device includes: a dynamic crack, at least one fine-grained layer, and a water interception and diversion system. The water interception and diversion system is used to intercept surface runoff generated by surface precipitation after the dynamic crack is closed, and to infiltrate the surface runoff into at least one of the fine-grained layers, so that the surface runoff is stored in deep soil. The method includes: before the dynamic crack develops, determining the soil structure characteristics by soil particle size; determining the number of fine-grained layers in the vegetation root water absorption depth area based on the soil structure characteristics; when there are multiple fine-grained layers and dynamic cracks develop, filling clay fine-grained soil below the first fine-grained layer and placing a water release pipe on the first fine-grained layer; when the dynamic crack is closed, installing an interception pipe and a water guide pipe, intercepting the surface runoff through the interception pipe, and then entering the water release pipe through the water guide pipe, and then entering the soil between the first fine-grained layer and the second fine-grained layer.

Description

Technical Field

[0001] The present invention relates to the fields of environmental science and hydrology technology, and in particular to a dynamic crack ecological water storage device and method in a coal mining subsidence area. Background Art

[0002] At present, underground coal production methods will form a subsidence basin on the surface that is slightly larger than the mining working face. During the advancement of the mining working face, as the coal mining roof behind it collapses, dynamically developing cracks will form above it.

[0003] The development of dynamic cracks changes continuously as the working face advances. When the working face roof collapses, its collapse is gradually transmitted to the surface through the roof strata. The subsequent ground subsidence and deformation will cause the surface to stretch and deform, forming cracks. The continuous advancement of the mining working face causes the surface to deform in sequence along the direction of the working face advancement. When the surface subsidence and deformation before and after the cracks stabilize, the cracks will close. According to existing monitoring research, the cycle from the development to the closure of dynamic cracks in coal mines is about 14 days. After the dynamic cracks are closed, the impact on the surface is relatively small. However, during the existence of dynamic cracks, they will become channels for soil moisture evaporation and surface water infiltration, affecting the surrounding soil moisture conditions. In arid and semi-arid areas, the presence of dynamic cracks often causes soil moisture evaporation, reducing the soil moisture content.

[0004] Soil water serves as a bridge between precipitation and groundwater. Precipitation entering the surface is converted into soil water, stored in the vadose zone, and then infiltrates into groundwater from there. Plug flow and preferential flow are two mechanisms for soil water infiltration. In plug flow, new water entering the soil mixes with existing water and slowly penetrates the soil profile in a layered manner, replacing old water and pushing it deeper into the soil. In preferential flow, new water does not mix with old water and can quickly reach deep soil layers, thereby replenishing groundwater.

[0005] The arid and semi-arid regions of central and western China mostly have a temperate continental climate. While precipitation is not insignificant, over 70% of this annual rainfall comes in the form of short, intense downpours in summer and autumn. This short, intense downpour has little water infiltration into the soil, resulting in surface runoff that converges along hillsides and valleys, failing to replenish soil moisture and causing soil erosion. The addition of coal mining to this harsh natural environment can lead to significant soil erosion. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a dynamic crack ecological water storage device and method in coal mining subsidence areas, and use the opening and closing of dynamic cracks to set up a water interception and diversion system to reduce the workload of earth excavation, improve work efficiency, and reduce costs; surface runoff is stored in deep soil, which is conducive to the recovery and growth of surface vegetation in coal mining subsidence areas and improves the drought resistance of vegetation in mining areas; the fine-grained structure layer of soil is used to slow down the movement speed of soil water and improve the water storage capacity of soil.

[0007] In a first aspect, an embodiment of the present invention provides a dynamic fracture ecological water storage device in a coal mining subsidence area, the device comprising: a dynamic fracture, at least one fine-grained layer, and a water interception and diversion system;

[0008] The water interception and diversion system is used to intercept the surface runoff generated by surface precipitation after the dynamic crack is closed, and to infiltrate the surface runoff into at least one of the fine particle layers, so that the surface runoff is stored in the deep soil layer;

[0009] The dynamic cracks are cracks formed when the ground sinks and deforms after the roof of the coal mining face collapses, causing the ground to stretch and deform.

[0010] Furthermore, the water interception and diversion system includes an interception pipe, a water diversion pipe and a water release pipe;

[0011] The upper opening of the intercepting pipe receives the surface runoff, the lower portion of the intercepting pipe is connected to the upper portion of the water guide pipe, and the lower portion of the water guide pipe is connected to the water release pipe.

[0012] Furthermore, the intercepting pipe is a wedge-shaped pipe made of PVC material, with both ends closed.

[0013] Furthermore, the water guide pipe is a pipe made of aluminum-plastic material, and the diameter of the water guide pipe is 10mm-15mm; the water release pipe is a wedge made of the aluminum-plastic material.

[0014] Furthermore, the water release pipe releases the surface runoff into the deep soil through the water conduit.

[0015] Furthermore, when a fine particle layer exists in the water absorption depth area of ​​the vegetation root system, the water release pipe is arranged above the fine particle layer;

[0016] When there are multiple fine particle layers in the water absorption depth area of ​​the vegetation root system, the water release pipe is arranged between the multiple fine particle layers.

[0017] In a second aspect, an embodiment of the present invention provides a method for ecological water storage in dynamic fractures in coal mining subsidence areas, which is applied to the above-mentioned dynamic fracture ecological water storage device in coal mining subsidence areas. The device includes: dynamic fractures, at least one fine-grained layer, and a water interception and diversion system, wherein the water interception and diversion system includes an interception pipe, a water diversion pipe, and a water release pipe; the method includes:

[0018] Before the dynamic cracks develop, determining soil structural characteristics by soil particle size;

[0019] Determining the number of fine-grained layers in the vegetation root water absorption depth area according to the soil structural characteristics;

[0020] When there are multiple fine-grained layers and the dynamic cracks develop, filling the bottom of the first fine-grained layer with clay fine-grained soil and placing the water release pipe on the first fine-grained layer;

[0021] After the dynamic crack is closed, the intercepting pipe and the water guide pipe are installed, and the surface runoff is intercepted by the intercepting pipe. The surface runoff enters the water release pipe through the water guide pipe and then enters the soil between the first fine particle layer and the second fine particle layer.

[0022] Furthermore, installing the intercepting pipe and the water conduit includes:

[0023] The intercepting pipe is placed in the excavated space above the dynamic crack, and the upper edge of the intercepting pipe is flush with the ground or lower than the ground surface.

[0024] In a third aspect, an embodiment of the present invention provides an electronic device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor implements the above-mentioned method when executing the computer program.

[0025] In a fourth aspect, an embodiment of the present invention provides a computer-readable medium having a non-volatile program code executable by a processor, wherein the program code enables the processor to execute the method as described above.

[0026] The embodiment of the present invention provides a dynamic crack ecological water storage device and method in a coal mining subsidence area, the device comprising: a dynamic crack, at least one fine-grained layer and a water interception and diversion system; the water interception and diversion system is used to intercept the surface runoff generated by surface precipitation after the dynamic crack is closed, and to infiltrate the surface runoff into at least one of the fine-grained layers, so that the surface runoff is stored in deep soil; wherein the dynamic crack is a crack formed by the tensile deformation of the ground surface caused by the subsidence deformation of the ground after the roof of the coal mining working face collapses; the method comprises: before the dynamic crack develops, determining the soil structure characteristics by the soil particle size; determining the number of fine-grained layers in the water absorption depth area of ​​the vegetation root system according to the soil structure characteristics; when there are multiple fine-grained layers, the dynamic crack is formed by the subsidence deformation of the ground after the subsidence deformation of the coal mining working face; determining the number of fine-grained layers in the water absorption depth area of ​​the vegetation root system according to the soil structure characteristics ... The first fine-grained layer is formed, and when dynamic cracks develop, clay fine-grained soil is filled below the first fine-grained layer, and a water release pipe is placed on the first fine-grained layer. When the dynamic cracks are closed, intercepting pipes and water guide pipes are installed, and surface runoff is intercepted by the intercepting pipes. After the surface runoff enters the water release pipes through the water guide pipes, it enters the soil between the first fine-grained layer and the second fine-grained layer. The water interception and diversion system is set up by utilizing the opening and closing of dynamic cracks to reduce the workload of earthwork excavation, improve work efficiency and reduce costs. The surface runoff is stored in the deep soil, which is conducive to the recovery and growth of surface vegetation in the coal mining subsidence area and improves the drought resistance of vegetation in the mining area. The fine-grained structure layer of the soil is used to slow down the movement of soil water and improve the water storage capacity of the soil.

[0027] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purposes and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of a dynamic fracture ecological water storage device in a coal mining subsidence area is provided for the first embodiment of the present invention;

[0031] Figure 2 A flow chart of a method for dynamic crack ecological water storage in coal mining subsidence areas is provided for the second embodiment of the present invention;

[0032] Figure 3A schematic diagram of the stratum before the development of dynamic fractures is provided for the second embodiment of the present invention;

[0033] Figure 4 A schematic diagram of dynamic crack closure is provided for the second embodiment of the present invention.

[0034] icon:

[0035] 1-dynamic crack; 2-fine-grained layer; 3-water interception and diversion system; 201-second fine-grained layer; 202-first fine-grained layer; 301-interception pipe; 302-water diversion pipe; 303-water release pipe. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] To facilitate understanding of this embodiment, the embodiment of the present invention is described in detail below.

[0038] Example 1:

[0039] Figure 1 A schematic diagram of a dynamic crack ecological water storage device in a coal mining subsidence area is provided for Example 1 of the present invention.

[0040] Reference Figure 1 , the device comprises: a dynamic fracture 1, at least one fine-grained layer 2 and a water interception and diversion system 3;

[0041] The water interception and diversion system 3 is used to intercept the surface runoff generated by surface precipitation after the dynamic fracture 1 is closed, and to infiltrate the surface runoff into at least one fine particle layer 2 so that the surface runoff is stored in the deep soil layer;

[0042] Dynamic cracks 1 are formed when the ground subsides and deforms after the coal mining face roof collapses, causing the ground surface to stretch and deform. Dynamic cracks 1 will first open and then close as the coal mining face advances.

[0043] The fine-grained layer 2 is a fine-grained layer present in the soil of arid and semi-arid mining areas. It is determined by the soil structure and may exist in one or more layers. This application uses two layers as an example for illustration. The presence of the fine-grained layer 2 will change the way soil moisture migrates, thereby affecting the moisture distribution in the soil profile. The fine-grained layer in the soil will slow down the infiltration rate of moisture in the soil, and a high-water content area will form above it. At the same time, the fine-grained layer will also hinder the upward movement of soil moisture and reduce the evaporation of soil moisture. Rational use of the fine-grained layer in the soil can effectively maintain soil moisture, forming a high-water content area in the water absorption depth area of ​​the vegetation root system, which is supplied to plants for use in the dry season, achieving the purpose of ecological water storage in the soil.

[0044] Furthermore, the water interception and diversion system 3 includes an interception pipe 301, a water diversion pipe 302 and a water release pipe 303;

[0045] The upper opening of the intercepting pipe 301 receives surface runoff, and the lower portion of the intercepting pipe 301 is connected to the upper portion of the water guide pipe 302, which in turn is connected to the water release pipe 303, thereby guiding water. The upper opening of the intercepting pipe 301 can also receive precipitation.

[0046] Furthermore, the intercepting pipe 301 is a wedge-shaped pipe made of PVC material, with both ends closed.

[0047] Furthermore, the water conduit 302 is a pipe made of aluminum-plastic material, and the diameter of the water conduit 302 is 10mm-15mm; the water release pipe 303 is a wedge made of aluminum-plastic material.

[0048] Specifically, the aluminum-plastic material has excellent compressive properties and will not flatten the pipe and lose its water-conducting function due to the closing of the dynamic crack 1; the diameter of the water pipe 302 is 10mm-15mm, and a smaller diameter will not become an evaporation channel for deep soil moisture in the dry season.

[0049] Furthermore, the water release pipe 303 releases the surface runoff into the deep soil through the water conduit.

[0050] Specifically, the water release pipe 303 is a wedge made of aluminum-plastic material and has strong rigidity. Even if the dynamic crack 1 closes and deforms the water release pipe 303, the water release pipe 303 will not crack and cause a large amount of water to be lost from a certain outlet. The water release pipe 303 is closed at both ends and has cross-shaped openings on both sides to release water into the soil layer. The installation position of the water release pipe 303 in this application is that its top is connected to the second fine particle layer 201 and its bottom is located above the second fine particle layer 201.

[0051] Specifically, the cross-shaped opening will not significantly reduce the strength and rigidity of the water release pipe, but can quickly release water into the soil layer, while preventing soil from entering the water release pipe and causing blockage.

[0052] Furthermore, when there is a fine particle layer 2 in the water absorption depth area of ​​the vegetation root system, the water release pipe 303 is set above the fine particle layer 2;

[0053] When there are multiple fine particle layers 2 in the water absorption depth area of ​​the vegetation root system, the water release pipe 303 is arranged between the multiple fine particle layers 2. That is, the water release pipe 303 is located between the first fine particle layer and the second fine particle layer from top to bottom.

[0054] The present application intercepts more precipitation in the season of abundant precipitation in arid and semi-arid areas, so that it replenishes the water lost during the coal mining process in a preferential flow manner, and also allows the precipitation to infiltrate and be stored in deep soil, avoiding the rapid loss of replenished soil moisture by evaporation.

[0055] Example 2:

[0056] Figure 2 A flow chart of a dynamic fracture ecological water storage method in coal mining subsidence areas is provided for the second embodiment of the present invention.

[0057] Reference Figure 2 , applied to the above-mentioned dynamic fracture ecological water storage device in coal mining subsidence area, the device comprises: dynamic fractures, at least one fine-grained layer and a water interception and diversion system, wherein the water interception and diversion system comprises an interception pipe, a water guide pipe and a water release pipe; the method comprises the following steps:

[0058] Step S101, before dynamic cracks develop, determining soil structural characteristics by soil particle size;

[0059] Step S102, determining the number of fine-grained layers in the water absorption depth area of ​​vegetation roots according to soil structural characteristics;

[0060] Specifically, refer to Figure 3 The strata before the development of the dynamic cracks shown are characterized by determining the soil structure characteristics through the soil particle size. This application uses two fine-grained layers within the water absorption depth area of ​​the vegetation root system as an example for illustration.

[0061] Step S103: when there are multiple fine-grained layers and dynamic cracks develop, filling the bottom of the first fine-grained layer with clayey fine-grained soil and placing a water release pipe on the first fine-grained layer;

[0062] Specifically, when dynamic cracks develop, first fill the area below the first fine-grained layer 202 with clay fine-grained soil to prevent the water released by the water release pipe from migrating downward in large quantities. Then, place the water release pipe on the filled first fine-grained layer 202, with intervals of 1 m above the water release pipe.

[0063] Step S104: After the dynamic crack is closed, an intercepting pipe and a water guide pipe are installed. The surface runoff is intercepted by the intercepting pipe, and then enters the water release pipe through the water guide pipe and then enters the soil between the first fine particle layer and the second fine particle layer.

[0064] Specifically, refer to Figure 4 After the dynamic cracks close, excavate a space above the dynamic cracks to place an interceptor pipe. The top edge of the interceptor pipe should be flush with or slightly below the ground surface to facilitate interception and storage of surface runoff. The installation and connection of the interceptor pipe, water pipe, and water release pipe should be airtight, with no leaks.

[0065] Furthermore, installing the intercepting pipe and the water conduit includes the following steps:

[0066] An intercepting pipe is placed in the excavated space above the dynamic crack, with the upper edge of the intercepting pipe flush with or below the ground surface.

[0067] After the entire device is installed, surface runoff will be intercepted by the interception pipe during heavy rainfall, and the water will flow into the release pipe through the water guide pipe. The water will flow into the soil layer between the second fine particle layer 201 and the first fine particle layer 202 through the cross opening in the release pipe. Since the second fine particle layer 201 and the first fine particle layer 202 slow down the upward and downward migration of water, the soil layer will form a high water content area for a long time. This part of water can supply plant growth during the dry season.

[0068] The embodiment of the present invention provides a dynamic crack ecological water storage device and method in a coal mining subsidence area, the device comprising: a dynamic crack, at least one fine-grained layer and a water interception and diversion system; the water interception and diversion system is used to intercept the surface runoff generated by surface precipitation after the dynamic crack is closed, and to infiltrate the surface runoff into at least one of the fine-grained layers, so that the surface runoff is stored in deep soil; wherein the dynamic crack is a crack formed by the tensile deformation of the ground surface caused by the subsidence deformation of the ground after the roof of the coal mining working face collapses; the method comprises: before the dynamic crack develops, determining the soil structure characteristics by the soil particle size; determining the number of fine-grained layers in the water absorption depth area of ​​the vegetation root system according to the soil structure characteristics; when there are multiple fine-grained layers, the dynamic crack is formed by the subsidence deformation of the ground after the subsidence deformation of the coal mining working face; determining the number of fine-grained layers in the water absorption depth area of ​​the vegetation root system according to the soil structure characteristics ... The first fine-grained layer is formed, and when dynamic cracks develop, clay fine-grained soil is filled below the first fine-grained layer, and a water release pipe is placed on the first fine-grained layer. When the dynamic cracks are closed, intercepting pipes and water guide pipes are installed, and surface runoff is intercepted by the intercepting pipes. After the surface runoff enters the water release pipes through the water guide pipes, it enters the soil between the first fine-grained layer and the second fine-grained layer. The water interception and diversion system is set up by utilizing the opening and closing of dynamic cracks to reduce the workload of earthwork excavation, improve work efficiency and reduce costs. The surface runoff is stored in the deep soil, which is conducive to the recovery and growth of surface vegetation in the coal mining subsidence area and improves the drought resistance of vegetation in the mining area. The fine-grained structure layer of the soil is used to slow down the movement of soil water and improve the water storage capacity of the soil.

[0069] An embodiment of the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and runnable on the processor. When the processor executes the computer program, the steps of the dynamic fracture ecological water storage method for coal mining subsidence areas provided in the above embodiment are implemented.

[0070] An embodiment of the present invention also provides a computer-readable medium having non-volatile program code executable by a processor, on which a computer program is stored. When the computer program is run by the processor, the steps of the dynamic fracture ecological water storage method in the coal mining subsidence area of ​​the above embodiment are executed.

[0071] The computer program product provided in the embodiments of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods described in the previous method embodiments. For specific implementation, please refer to the method embodiments and will not be repeated here.

[0072] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems and devices can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0073] In addition, in the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0074] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0075] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0076] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A dynamic crack ecological water storage device in coal mining subsidence area, characterized in that: The device comprises: a dynamic fracture, at least one fine-grained layer and a water interception and diversion system; The water interception and diversion system is used to intercept the surface runoff generated by surface precipitation after the dynamic crack is closed, and to infiltrate the surface runoff into at least one of the fine particle layers, so that the surface runoff is stored in the deep soil layer; The dynamic cracks are cracks formed by the tensile deformation of the ground surface caused by the collapse of the roof of the coal mining face and the ground subsidence deformation; The water interception and diversion system includes an interception pipe, a water diversion pipe and a water release pipe; The upper opening of the intercepting pipe receives the surface runoff, the lower portion of the intercepting pipe is connected to the upper portion of the water guide pipe, and the lower portion of the water guide pipe is connected to the water release pipe; When there is a fine particle layer in the water absorption depth area of ​​the vegetation root system, the water release pipe is arranged above the fine particle layer; When there are multiple fine particle layers in the water absorption depth area of ​​the vegetation root system, the water release pipe is arranged between the multiple fine particle layers.

2. The dynamic crack ecological water storage device for coal mining subsidence area according to claim 1 is characterized in that: The intercepting pipe is a wedge-shaped pipe made of PVC material, and both ends are closed.

3. The dynamic crack ecological water storage device for coal mining subsidence area according to claim 1 is characterized in that: The water guide pipe is a pipe made of aluminum-plastic material, and the diameter of the water guide pipe is 10mm-15mm; the water release pipe is a wedge made of the aluminum-plastic material.

4. The dynamic crack ecological water storage device for coal mining subsidence areas according to claim 1 is characterized in that: The water release pipe releases the surface runoff into the deep soil through the water conduit.

5. A method for ecological water storage in dynamic cracks in coal mining subsidence areas, characterized in that: The dynamic fracture ecological water storage device for coal mining subsidence areas according to any one of claims 1 to 4 comprises: a dynamic fracture, at least one fine-grained layer, and a water interception and diversion system, wherein the water interception and diversion system comprises an interception pipe, a water guide pipe, and a water release pipe; and the method comprises: Before the dynamic cracks develop, determining soil structural characteristics by soil particle size; Determining the number of fine-grained layers in the vegetation root water absorption depth area according to the soil structural characteristics; When there are multiple fine-grained layers and the dynamic cracks develop, filling the bottom of the first fine-grained layer with clay fine-grained soil and placing the water release pipe on the first fine-grained layer; After the dynamic crack is closed, the intercepting pipe and the water guide pipe are installed, and the surface runoff is intercepted by the intercepting pipe. The surface runoff enters the water release pipe through the water guide pipe and then enters the soil between the first fine particle layer and the second fine particle layer.

6. The method for dynamic crack ecological water storage in coal mining subsidence areas according to claim 5, characterized in that: Installing the intercepting pipe and the water conduit includes: The intercepting pipe is placed in the excavated space above the dynamic crack, and the upper edge of the intercepting pipe is flush with the ground or lower than the ground surface.

7. An electronic device comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, wherein: When the processor executes the computer program, the method according to claim 5 or 6 is implemented.

8. A computer-readable medium having a non-volatile program code executable by a processor, characterized in that The program code causes the processor to execute the method of claim 5 or 6.

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