Method and device for determining treatment range of room-pillar type goaf under proposed building

Abstract

The invention provides a method and a device for determining a treatment range of a room-pillar type goaf under a proposed building. The method comprises the following steps: determining the number of room-mining goaf in a proposed building range of the proposed building in a plurality of room-mining goaf under the proposed building; and based on the trend grouting treatment range of the single room mining goaf and the number of the room mining goaf, the room-pillar type goaf treatment range corresponding to the proposed building is determined. According to the method, the number of the room mining goaf below the to-be-built object and the grouting treatment range of the single goaf are accurately evaluated, so that the accuracy of determining the treatment range is improved, the unnecessary treatment area is reduced, and resource waste is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, and particularly to a method and device for determining the treatment scope of a room-and-pillar goaf under a proposed building. Background Art

[0002] A room-and-pillar goaf is an underground space formed due to the historical use of the room-and-pillar coal mining method. Due to the disorder in the coal mining process and the irregular sizes of the rooms and pillars, these goafs have potential safety hazards. For example, sudden collapses may occur from the roof of the goaf to the ground surface, and even induced mining seismicity may be triggered, posing a threat to the safe production of coal mines and the construction of surface buildings. Therefore, a very crucial and important technical task in the treatment of room-and-pillar goafs is the determination of the treatment scope of the goaf.

[0003] In the related art, the vertical section method is used to roughly determine the treatment scope of the goaf. However, the determined treatment scope of the goaf has the characteristics of a large treatment scope of the goaf, a large number of borehole layouts, a large amount of engineering work, a long construction period, and high treatment costs. Therefore, a more accurate method for determining the treatment scope of the goaf is needed. Summary of the Invention

[0004] The present invention provides a method and device for determining the treatment scope of a room-and-pillar goaf under a proposed building, so as to solve the defects in the related art that the determined treatment scope of the goaf has a large treatment scope of the goaf, a large number of borehole layouts, a large amount of engineering work, a long construction period, and high treatment costs.

[0005] The present invention provides a method for determining the treatment scope of a room-and-pillar goaf under a proposed building, including the following steps.

[0006] Determine the number of room-and-pillar goafs within the proposed scope of the proposed building among a plurality of room-and-pillar goafs under the proposed building; Based on the strike grouting treatment scope of a single room-and-pillar goaf and the number of the room-and-pillar goafs, determine the treatment scope of the room-and-pillar goaf of the proposed building.

[0007] According to the method for determining the treatment scope of a room-and-pillar goaf under a proposed building provided by the present invention, the strike grouting treatment scope of a single room-and-pillar goaf is determined by the following method: Determine the size of the coal-extracted room, the roof caving angle, and the caving height of the coal-extracted room of a single room-and-pillar goaf; Based on the size of the coal-extracted room, the roof caving angle, and the caving height of the coal-extracted room of a single room-and-pillar goaf, determine the strike grouting treatment scope of a single room-and-pillar goaf.

[0008] A method for determining the treatment scope of gob areas under a proposed building in a room-and-pillar mining method provided by the present invention. The treatment scope of grouting in the strike direction of a single room-and-pillar mined gob area is obtained through the following formula based on the size of the mined coal room, the roof caving angle, and the caving height of the mined coal room in the single room-and-pillar mined gob area: ; Wherein, is the treatment scope of grouting in the strike direction of a single room-and-pillar mined gob area; is the size of the mined coal room in the single room-and-pillar mined gob area; is the roof caving angle of the single room-and-pillar mined gob area; is the caving height of the mined coal room in the single room-and-pillar mined gob area.

[0009] A method for determining the treatment scope of gob areas under a proposed building in a room-and-pillar mining method provided by the present invention. The method for determining the number of room-and-pillar mined gob areas within the proposed scope of the proposed building among multiple room-and-pillar mined gob areas under the proposed building includes: Determine the positions and sizes of each room-and-pillar mined gob area under the proposed building; Based on the positions and sizes of each room-and-pillar mined gob area under the proposed building, determine the number of room-and-pillar mined gob areas within the proposed scope of the proposed building.

[0010] A method for determining the treatment scope of gob areas under a proposed building in a room-and-pillar mining method provided by the present invention. The proposed building includes at least one of a building, a structure, a railway, and a highway.

[0011] The present invention also provides a device for determining the treatment scope of gob areas under a proposed building in a room-and-pillar mining method, including: The first module for determining the treatment scope of gob areas under a proposed building in a room-and-pillar mining method, which is used to determine the number of room-and-pillar mined gob areas within the proposed scope of the proposed building among multiple room-and-pillar mined gob areas under the proposed building; The second module for determining the treatment scope of gob areas under a proposed building in a room-and-pillar mining method, which is used to determine the treatment scope of the room-and-pillar mined gob areas of the proposed building based on the treatment scope of grouting in the strike direction of a single room-and-pillar mined gob area and the number of the room-and-pillar mined gob areas.

[0012] According to the device for determining the treatment scope of gob areas under a proposed building in a room-and-pillar mining method provided by the present invention, the second module for determining the treatment scope of gob areas under a proposed building in a room-and-pillar mining method is further used for: Determine the size of the mined coal room, the roof caving angle, and the caving height of the mined coal room in a single room-and-pillar mined gob area; Based on the size of the mined coal room, the roof caving angle, and the caving height of the mined coal room in a single room-and-pillar mined gob area, determine the treatment scope of grouting in the strike direction of a single room-and-pillar mined gob area.

[0013] A device for determining the treatment range of gob areas under a proposed building in the form of room pillars according to the present invention. The size of the mined coal room, the roof caving angle, and the caving height of the mined coal room in the gob area of a single room mining are used to determine the strike grouting treatment range of the gob area of a single room mining through the following formula: ; Wherein, is the strike grouting treatment range of the gob area of a single room mining; is the size of the mined coal room in the gob area of a single room mining; is the roof caving angle of the gob area of a single room mining; is the caving height of the mined coal room in the gob area of a single room mining.

[0014] A device for determining the treatment range of gob areas under a proposed building in the form of room pillars according to the present invention. The module for determining the treatment range of gob areas under the first proposed building is further configured to: Determine the positions and sizes of the gob areas of each room mining under the proposed building; Based on the positions and sizes of the gob areas of each room mining under the proposed building, determine the number of gob areas of room mining within the proposed range of the proposed building.

[0015] A device for determining the treatment range of gob areas under a proposed building in the form of room pillars according to the present invention. The proposed building includes at least one of a building, a structure, a railway, and a highway.

[0016] The method for determining the treatment range of gob areas under a proposed building in the form of room pillars provided by the present invention determines the number of gob areas of room mining within the proposed range of the proposed building among multiple gob areas of room mining under the proposed building; based on the strike grouting treatment range of the gob area of a single room mining and the number of gob areas of room mining, determine the treatment range of the gob area in the form of room pillars corresponding to the proposed building. The present invention improves the accuracy of determining the treatment range, reduces unnecessary treatment areas, and avoids waste of resources by accurately evaluating the number of gob areas of room mining under the proposed building and the grouting treatment range of a single gob area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic flow chart of the method for determining the treatment range of gob areas under a proposed building in the form of room pillars provided by the present invention.

[0019] Figure 2It is a schematic diagram of the scenario of the method for determining the treatment scope of the room pillar goaf under the proposed building provided by the present invention.

[0020] Figure 3 It is a schematic structural diagram of the device for the method for determining the treatment scope of the room pillar goaf under the proposed building provided by the present invention. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Figure 1 It is a schematic flowchart of the method for determining the treatment scope of the room pillar goaf under the proposed building provided by the present invention. As Figure 1 shown, the method includes step 210 and step 220.

[0023] Step 210: Determine the number of room pillar goafs within the proposed scope of the proposed building among multiple room pillar goafs under the proposed building.

[0024] Here, the proposed scope of the proposed building is determined by the boundary line of the proposed building.

[0025] Specifically, all room pillar goafs existing under the proposed building can be identified and counted to determine which room pillar goafs are within the proposed scope of the proposed building and need to be included in the treatment scope of the room pillar goaf. For example, it can be determined through geological exploration, historical mining data, on-site investigation, etc. For example, if there are 5 room pillar goafs under a proposed building, but only 3 room pillar goafs overlap with the proposed scope of the proposed building, then the number of room pillar goafs related to the proposed scope of the proposed building is determined to be 3.

[0026] Step 220: Determine the treatment scope of the room pillar goaf of the proposed building based on the strike grouting treatment scope of a single room pillar goaf and the number of the room pillar goafs.

[0027] Here, the strike grouting treatment scope of a single room pillar goaf refers to the scope of the area that needs to be grouted and reinforced around a single room pillar goaf, and this scope is usually distributed along the strike of the room pillar goaf. In this embodiment, the strike grouting treatment scope of a single room pillar goaf can be determined by analyzing the size, shape, coal seam properties, and geological conditions of the room pillar goaf.

[0028] In this embodiment, after determining the grouting treatment range for the goaf in the direction of a single room-and-pillar mining goaf, considering the number of room-and-pillar mining goafs, the treatment range for the room-and-pillar mining goafs of the proposed structure is determined. For example, if the grouting treatment range for the goaf in the direction of a single room-and-pillar mining goaf is 5 meters, then when the number of room-and-pillar mining goafs related to the proposed range of the proposed structure is 3, the total treatment range for the room-and-pillar mining goafs will be 15 meters. This range will be used to guide the grouting project to ensure effective treatment of the room-and-pillar mining goafs under the proposed building and prevent ground subsidence and mine tremors.

[0029] In practical applications, the proposed structure includes, but is not limited to, buildings, structures, railways, and highways.

[0030] In one example, there is a proposed building above the ground surface, the proposed range of the proposed building is L, and there are multiple room-and-pillar mining goafs with a mined coal room size of m in the bedrock layer below the ground surface due to room-and-pillar coal mining method. There are coal pillars with a size of n left between the multiple room-and-pillar mining goafs to support the overlying rock layer and prevent it from collapsing.

[0031] As Figure 2 shown, by drawing a vertical sectional view of the distribution of the room-and-pillar mining goafs under the proposed structure according to the layout of the proposed building and the layout of the room-and-pillar mining goafs under the proposed building, in the vertical sectional view, considering the proposed range L of the proposed building and the relative positional relationship between each room-and-pillar mining goaf and the proposed range L of the proposed building, it is determined that the number of room-and-pillar mining goafs within the proposed range L of the proposed building is 2. Finally, according to the grouting treatment range L 1 in the direction of a single room-and-pillar mining goaf, the treatment range for the room-and-pillar mining goafs of the proposed building can be determined as 2L 1 .

[0032] The method for determining the treatment range of room-and-pillar mining goafs under a proposed structure provided by the embodiment of the present invention determines the number of room-and-pillar mining goafs within the proposed range of the proposed structure among the multiple room-and-pillar mining goafs under the proposed structure; based on the grouting treatment range in the direction of a single room-and-pillar mining goaf and the number of room-and-pillar mining goafs, determines the treatment range of the room-and-pillar mining goafs corresponding to the proposed structure. The present invention improves the accuracy of determining the treatment range by precisely evaluating the number of room-and-pillar mining goafs under the proposed structure and the grouting treatment range of a single goaf, reduces unnecessary treatment area, and avoids waste of resources.

[0033] In some embodiments, the grouting treatment range in the direction of a single room-and-pillar mining goaf is determined by the following method: Determine the mined coal room size, roof caving angle, and mined coal room caving height of a single room-and-pillar mining goaf; Based on the mined coal room size, roof caving angle, and mined coal room caving height of a single room-and-pillar mining goaf, determine the grouting treatment range in the direction of a single room-and-pillar mining goaf.

[0034] The size of the extracted coal room refers to the width of the coal room extracted during the room-and-pillar coal mining process. The size of the extracted coal room is usually between 5 and 10 meters, mainly depending on the properties of the surrounding rock, the hardness of the coal, the mining depth, the thickness of the coal seam, and the coal winning technology. In practical applications, the size of the extracted coal room can be determined through mine surveying, geological exploration reports, design drawings of the mined-out area in room mining, or on-site actual measurement.

[0035] The roof caving angle is the angle formed between the fracture surface of the roof after caving and the roof plane in the direction of the mined-out area. In practical applications, the roof caving angle can be determined through geological surveys, on-site observations, theoretical calculations, or simulation experiments.

[0036] The caving height of the extracted coal room refers to the height at which the roof of the coal room collapses from its original position to the bottom of the mined-out area, that is, the height of the roof caving after the extraction of the coal room. In practical applications, it can be determined through mine surveying, geological exploration, on-site observations, or by using geophysical exploration techniques.

[0037] Specifically, in one example, the scope of the strike grouting treatment for a single room-and-pillar mined-out area is determined based on the size of the extracted coal room, the roof caving angle, and the caving height of the extracted coal room in the single room-and-pillar mined-out area through the following formula: ; where is the scope of the strike grouting treatment for a single room-and-pillar mined-out area; is the size of the extracted coal room in the single room-and-pillar mined-out area; is the roof caving angle of the single room-and-pillar mined-out area; is the caving height of the extracted coal room in the single room-and-pillar mined-out area.

[0038] Continuing to refer to Figure 2 as shown, after determining the size of the extracted coal room in the single room-and-pillar mined-out area, the roof caving angle of the single room-and-pillar mined-out area, and the caving height of the extracted coal room in the single room-and-pillar mined-out area, substitute these parameters into the formula , and calculate the scope of the grouting treatment for the single room-and-pillar mined-out area.

[0039] In this embodiment, by comprehensively analyzing the size of the extracted coal room, the roof caving angle, and the caving height of the extracted coal room in the single room-and-pillar mined-out area, the scope of the strike grouting treatment for the single room-and-pillar mined-out area is accurately determined.

[0040] In some embodiments, determining the number of room-and-pillar mined-out areas within the proposed scope of a proposed structure among multiple room-and-pillar mined-out areas under the proposed structure includes: Determine the positions and dimensions of the room pillar goafs under the proposed building; Based on the positions and dimensions of the room pillar goafs under the proposed building, determine the number of room pillar goafs within the proposed scope of the proposed building.

[0041] Specifically, first, the boundary line range of the proposed building on the ground surface, that is, the proposed scope of the proposed building, can be determined through the design drawings of the proposed building or on-site actual measurements. That is, the position of the outer contour line of the proposed building on the ground, which is the direct area of future construction and influence of the proposed building.

[0042] Then, the positions and dimensions of the room pillar goafs under the proposed building can be determined through the design drawings of the room pillar goafs underground or on-site actual measurements. Specifically, the position of the room pillar goaf refers to the projection position on the ground surface of the central position of the room pillar goaf underground, and the dimension refers to the geometric dimensions of the room pillar goaf, such as length, width, and height.

[0043] In this embodiment, the vertical sectional view of the distribution of the room pillar goafs under the proposed building can be drawn by combining the boundary line range of the proposed building on the ground surface and the positions and dimensions of the room pillar goafs under the proposed building. Comparative analysis is carried out in the vertical sectional view to determine the number of room pillar goafs within the proposed scope of the proposed building, that is, the number of room pillar goafs whose boundaries are within the boundary line range of the proposed building.

[0044] As Figure 2 shown, by drawing the vertical sectional view of the distribution of the room pillar goafs under the proposed building according to the layout of the proposed building and the layout of the room pillar goafs under the proposed building, in the vertical sectional view, by combining the relative positional relationship between the proposed scope L of the proposed building and the boundaries of each room pillar goaf, it can be determined that the number of room pillar goafs within the proposed scope L of the proposed building is 2.

[0045] Next, the method and device for determining the treatment scope of room pillar goafs under a proposed building provided by the present invention will be described. The method and device for determining the treatment scope of room pillar goafs under a proposed building described below can be mutually referred to with the method for determining the treatment scope of room pillar goafs under a proposed building described above.

[0046] Refer to Figure 3 , in this embodiment, the device for determining the treatment scope of room pillar goafs under a proposed building includes a first module 310 for determining the treatment scope of room pillar goafs under a proposed building and a second module 320 for determining the treatment scope of room pillar goafs under a proposed building.

[0047] The first module 310 for determining the treatment scope of room pillar goafs under a proposed building is used to determine the number of room pillar goafs within the proposed scope of the proposed building among a plurality of room pillar goafs under the proposed building.

[0048] Here, the proposed scope of the proposed structure is determined by the boundary line of the proposed structure.

[0049] Specifically, all room-and-pillar gob areas existing under the proposed structure can be identified and counted to determine which room-and-pillar gob areas are directly related to the proposed scope of the proposed structure and need to be included in the scope of room-and-pillar gob area treatment. For example, it can be determined through geological exploration, historical mining data, on-site investigation, etc. For instance, if there are 5 room-and-pillar gob areas under a proposed structure, but only 3 room-and-pillar gob areas overlap with the proposed scope of the proposed structure, then the number of room-and-pillar gob areas related to the proposed scope of the proposed structure is determined to be 3.

[0050] The room-and-pillar gob area treatment scope determination module 320 for the second proposed structure is used to determine the room-and-pillar gob area treatment scope of the proposed structure based on the grouting treatment scope along the strike of a single room-and-pillar gob area and the number of such room-and-pillar gob areas.

[0051] Here, the grouting treatment scope along the strike of a single room-and-pillar gob area refers to the scope of the area that needs to be grouted and reinforced around a single room-and-pillar gob area, and this scope is usually distributed along the strike of the room-and-pillar gob area. In this embodiment, the grouting treatment scope along the strike of a single room-and-pillar gob area can be determined by analyzing the size, shape, coal seam properties, and geological conditions of the room-and-pillar gob area.

[0052] In this embodiment, after determining the grouting treatment scope along the strike of a single room-and-pillar gob area, combined with the number of room-and-pillar gob areas, the room-and-pillar gob area treatment scope of the proposed structure is determined. For example, if the grouting treatment scope along the strike of a single room-and-pillar gob area is 5 meters, then in the case where the number of room-and-pillar gob areas related to the proposed scope of the proposed structure is 3, the total room-and-pillar gob area treatment scope will be 15 meters. This scope will be used to guide the grouting project to ensure that the room-and-pillar gob areas under the proposed building are effectively treated and prevent ground collapse and mine tremors.

[0053] In practical applications, the proposed structure includes, but is not limited to, buildings, structures, railways, and highways.

[0054] In an example, there is a proposed building above the ground surface, the proposed scope of the proposed building is L, and there are multiple room-and-pillar gob areas with a mined coal room size of m formed by room-and-pillar coal mining method in the bedrock layer below the ground surface. There are room pillars with a size of n left between multiple room-and-pillar gob areas to support the overlying rock layer and prevent it from collapsing.

[0055] The device for determining the treatment scope of the room-column goaf under the proposed building provided by the embodiment of the present invention determines the number of room-mined goafs within the proposed scope of the proposed building among multiple room-mined goafs under the proposed building; based on the strike grouting treatment scope of a single room-mined goaf and the number of room-mined goafs, it determines the treatment scope of the room-column goaf corresponding to the proposed building. The present invention improves the accuracy of determining the treatment scope by precisely evaluating the number of room-mined goafs under the proposed building and the grouting treatment scope of a single goaf, reduces the unnecessary treatment area, and avoids resource waste.

[0056] In some embodiments, the module 320 for determining the treatment scope of the room-column goaf under the second proposed building is further configured to: Determine the size of the coal-extracted room, the roof caving angle, and the caving height of the coal-extracted room in a single room-mined goaf; Based on the size of the coal-extracted room, the roof caving angle, and the caving height of the coal-extracted room in a single room-mined goaf, determine the strike grouting treatment scope of a single room-mined goaf.

[0057] The size of the coal-extracted room refers to the width of the coal-extracted room during room-column coal mining. The size of the coal-extracted room is usually between 5 and 10 meters, which mainly depends on the surrounding rock properties, coal hardness, mining depth, coal seam thickness, and mining technology. In practical applications, the size of the coal-extracted room can be determined through mine surveying, geological exploration reports, mine design drawings, or on-site actual measurement.

[0058] The roof caving angle is the angle formed between the fracture surface of the roof after caving and the roof plane towards the goaf direction. In practical applications, the roof caving angle can be determined through geological surveys, on-site observations, theoretical calculations, or simulation experiments.

[0059] The caving height of the coal-extracted room refers to the height at which the roof of the coal-extracted room collapses from the original position to the bottom of the goaf, that is, the caving height of the roof of the coal-extracted room after mining. In practical applications, it can be determined through mine surveying, geological exploration, on-site observations, or by using geophysical exploration techniques.

[0060] Specifically, in an example, the determination of the strike grouting treatment scope of a single room-mined goaf based on the size of the coal-extracted room, the roof caving angle, and the caving height of the coal-extracted room in a single room-mined goaf is obtained through the following formula: ; Where is the strike grouting treatment scope of a single room-mined goaf; is the size of the coal-extracted room in a single room-mined goaf; is the roof caving angle of a single room-mined goaf; is the caving height of the coal-extracted room in a single room-mined goaf.

[0061] In this embodiment, by comprehensively analyzing the size of the mined coal room, the roof caving angle, and the caving height of the mined coal room in a single room-and-pillar goaf, the grouting treatment range in the strike direction of the single room-and-pillar goaf is accurately determined.

[0062] The first proposed building's room-and-pillar goaf treatment range determination module 310 is further configured to: Determine the positions and sizes of each room-and-pillar goaf under the proposed building; Based on the proposed range of the proposed building and the distribution range under the proposed building, determine the number of room-and-pillar goafs within the proposed range of the proposed building.

[0063] Specifically, first, the boundary line range of the proposed building on the ground surface, that is, the proposed range of the proposed building, can be determined through the design drawings of the proposed building or on-site actual measurement. That is, the position of the outer contour line of the proposed building on the ground, which is the direct area of future construction and influence of the proposed building.

[0064] Then, through the design drawings of the room-and-pillar goafs underground or on-site actual measurement, the positions and sizes of each room-and-pillar goaf under the proposed building can be determined. Specifically, the position of the room-and-pillar goaf refers to the projection position on the ground surface of the central position of the room-and-pillar goaf underground, and the size refers to the geometric size of the room-and-pillar goaf, such as length, width, and height.

[0065] In this embodiment, the vertical sectional view of the distribution of the room-and-pillar goafs under the proposed building can be drawn by combining the boundary line range of the proposed building on the ground surface and the positions and sizes of each room-and-pillar goaf under the proposed building. Through comparative analysis in the vertical sectional view, the number of room-and-pillar goafs within the proposed range of the proposed building can be determined, that is, the number of room-and-pillar goafs whose boundaries are within the boundary line range of the proposed building.

[0066] As Figure 2 shown, by drawing the vertical sectional view of the distribution of the room-and-pillar goafs under the proposed building according to the layout of the proposed building and the layout of the room-and-pillar goafs under the proposed building, in the vertical sectional view, by combining the relative position relationship between the proposed range L of the proposed building and the boundaries of each room-and-pillar goaf, it can be determined that the number of room-and-pillar goafs within the proposed range L of the proposed building is 2.

[0067] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0068] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0069] In the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the embodiments of the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for determining the scope of treatment of room-and-pillar goaf under a proposed building, characterized in that: include: Determine the number of housing mining voids within the proposed construction area of ​​the proposed construction among the plurality of housing mining voids below the proposed construction; Based on the grouting treatment range of the goaf direction of a single room-type mining area and the number of goafs in the room-type mining area, the treatment range of the room-and-pillar goaf of the proposed building is determined.

2. The method for determining the scope of room-and-pillar goaf under a proposed building according to claim 1 is characterized in that: The grouting treatment range of the single room mining goaf is determined by the following method: Determine the size of the coal mining room, roof collapse angle and coal mining room collapse height of a single room goaf; Based on the size of the coal mining room, the roof collapse angle and the collapse height of the coal mining room in the single-room mining goaf, the grouting treatment scope of the single-room mining goaf is determined.

3. The method for determining the scope of room-and-pillar goaf under a proposed building according to claim 2 is characterized in that: The determination of the grouting treatment range of the single room mining goaf direction based on the size of the mined coal room, the roof collapse angle and the mined coal room collapse height of the single room mining goaf is obtained by the following formula: ； in, It is the grouting treatment range of the goaf area of ​​a single room; The size of the coal mining room for a single room in the goaf; It is the roof collapse angle of a single room mining goaf; It is the collapse height of the coal mining room in a single mining goaf.

4. The method for determining the scope of room-and-pillar goaf area management under a proposed building according to claim 1, characterized in that: The step of determining the number of the multiple mining voids below the proposed building that are within the proposed construction scope of the proposed building includes: Determine the location and size of the mined areas of each room below the proposed building; Based on the location and size of each mining goaf under the proposed building, determine the number of mining goaf within the proposed construction area.

5. The method for determining the scope of room-and-pillar goaf under a proposed building according to claim 1, characterized in that: The proposed building includes at least one of a building, a structure, a railway, and a highway.

6. A device for determining the scope of treatment of room-and-pillar goaf under a proposed building, characterized in that: include: A module for determining the scope of treatment of room-and-pillar goaf areas under the first proposed building, for determining the number of room-and-pillar goaf areas under the proposed building that are within the proposed scope of the proposed building among the multiple room-and-pillar goaf areas under the proposed building; The module for determining the scope of treatment of room-and-pillar goaf under the second proposed building is used to determine the scope of treatment of room-and-pillar goaf under the proposed building based on the grouting treatment scope of the direction of a single room-and-pillar goaf and the number of the room-and-pillar goaf.

7. The device for determining the scope of room-and-pillar goaf area treatment under a proposed building according to claim 6, characterized in that: The module for determining the scope of treatment of room-and-pillar goaf area under the second proposed building is also used for: Determine the size of the coal mining room, roof collapse angle and coal mining room collapse height of a single room goaf; Based on the size of the coal mining room, the roof collapse angle and the collapse height of the coal mining room in the single-room mining goaf, the grouting treatment scope of the single-room mining goaf is determined.

8. The device for determining the scope of room-and-pillar goaf area management under a proposed building according to claim 7, characterized in that: The determination of the grouting treatment range of the single room mining goaf direction based on the size of the mined coal room, the roof collapse angle and the mined coal room collapse height of the single room mining goaf is obtained by the following formula: ； in, It is the grouting treatment range of the goaf area of ​​a single room; The size of the coal mining room for a single room in the goaf; It is the roof collapse angle of a single room mining goaf; It is the collapse height of the coal mining room in a single mining goaf.

9. The device for determining the scope of room-and-pillar goaf area treatment under a proposed building according to claim 6, characterized in that: The module for determining the scope of room-and-pillar goaf area management under the first proposed building is also used for: Determine the location and size of the mined areas of each room below the proposed building; Based on the proposed scope of the proposed building and the distribution range below the proposed building, determine the number of mining voids within the proposed scope of the proposed building.

10. The device for determining the scope of room-and-pillar goaf area treatment under a proposed building according to claim 6, characterized in that: The proposed building includes at least one of a building, a structure, a railway, and a highway.

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