Gob-side entry retaining gangue bank deformation control device

Abstract

The application relates to a deformation control device for a gangue slope along a gob-side entry retaining, which comprises an anchoring assembly and a gangue blocking support piece. The anchoring assembly comprises an anchor cable, an anchor fluke component and an adjusting component. The anchor fluke component and the adjusting component are respectively arranged at two ends of the length direction of the anchor cable. The anchor fluke component is suitable for being arranged in a gangue slope, and the adjusting component is suitable for being arranged in a roadway. The position of the adjusting component relative to the anchor cable is adjustable, so as to provide a pre-tightening force for the anchor fluke component to support the gangue slope. The blocking support piece is suitable for being arranged in the roadway, and is used for supporting the outer wall of the gangue slope. The deformation control device for the gangue slope along the gob-side entry retaining has a reasonable structural design and a good supporting effect.

Description

Technical Field

[0001] This invention relates to the field of roadway support technology, specifically to a device for controlling the deformation of gangue sidewalls in roadways with goaf retention. Background Technology

[0002] my country began research on pillarless mining in the 1950s, progressing from gangue walls and wooden supports to dense pillars, steel supports, and masonry blocks, and further to pillarless mining technologies using high-water-content materials, high-strength concrete, and flexible molding materials in the new century. However, with increasing mining depth, these techniques face challenges such as severe roof subsidence, large deformation of the gangue walls, and severe floor heave, hindering the widespread application of pillarless mining with roadway retention. Furthermore, the roadway retention support devices in these technologies have complex structures, poor support effectiveness, and low safety during use. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention propose a deformation control device for gangue slope along the goaf with reasonable structural design and good support effect.

[0005] An embodiment of the present invention provides a deformation control device for a gangue wall in a goaf-retention roadway, comprising: an anchoring assembly, the anchoring assembly including an anchor cable, an anchor claw component, and an adjusting component, the anchor claw component and the adjusting component being respectively disposed at both ends of the anchor cable along its length direction, the anchor claw component being adapted to be disposed within the gangue wall, the adjusting component being adapted to be disposed within the roadway, the position of the adjusting component relative to the anchor cable being adjustable to provide a preload force to the anchor claw component to support the gangue wall; and a gangue retaining support component, the retaining support component being adapted to be disposed within the roadway, the retaining support component being used to support the outer wall of the gangue wall.

[0006] According to an embodiment of the present invention, the deformation control device for gangue slope along the goaf can place anchor claw components within the gangue slope. By changing the position of the adjusting component relative to the anchor cable, a preload force supporting the gangue slope is provided to the anchor claw components, thereby forming active support for the gangue slope without waiting for the deformation of the gangue slope to stabilize, thus improving the support effect of the gangue slope. Furthermore, by placing the gangue retaining support component within the roadway to support the outer wall of the gangue slope, passive support is formed. Therefore, the deformation control device for gangue slope along the goaf slope according to the embodiments of the present invention, by setting the above two support structures, can improve the quality of roadway formation, and has a reasonable structural design and good support effect.

[0007] In some embodiments, the anchor claw component includes a connector and an anchor claw, the connector being sleeved on the rear end of the anchor cable, the anchor claw being disposed on the connector, and the anchor claw extending obliquely toward the front end of the anchor cable.

[0008] In some embodiments, there are multiple anchor claws, which are arranged at intervals along the circumferential and / or axial directions of the connector.

[0009] In some embodiments, the anchor claw component further includes a first tray and a first locking member, the first locking member being disposed at the rear end of the connector and detachably connected to the anchor cable, and the first tray being disposed between the connector and the first locking member.

[0010] In some embodiments, the adjusting component includes a second locking member, a second tray, and a third tray, all of which are disposed on the anchor cable. The third tray is closer to the rockfill side than the second tray. The second locking member is disposed on the side of the second tray opposite to the third tray. The third tray has an abutment portion adapted to contact the rockfill side.

[0011] In some embodiments, the rock-blocking support includes a support column and a baffle plate, the baffle plate being disposed at one end of the support column and adapted to abut against the outer wall of the rock-blocking wall, and the support column being adapted to be inclinedly supported within the roadway.

[0012] In some embodiments, there are multiple anchoring components, wherein two anchoring components are arranged at intervals along the vertical direction of the rockfill side, and the rockfill retaining support is disposed between the two anchoring components. Attached Figure Description

[0013] Figure 1 This is an installation schematic diagram of the deformation control device for the gangue side of the goaf retention tunnel according to an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the anchoring component of the deformation control device for the gangue side of the goaf-retaining roadway according to an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the retaining rod support component of the deformation control device for the gangue side of the goaf retention tunnel according to an embodiment of the present invention.

[0016] Figure label:

[0017] 1. Anchoring assembly; 11. Anchor cable; 12. Anchor claw component; 121. Connector; 122. Anchor claw component; 123. First tray; 124. First locking component; 13. Adjusting component; 131. Second locking component; 132. Second tray; 133. Third tray;

[0018] 2. Rockfill retaining support components; 21. Support column; 22. Baffle plate;

[0019] 3. Lanes;

[0020] 4. Gangue gangue. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] The following is a reference appendix. Figures 1 to 3 A deformation control device for gangue slope along the goaf is described according to an embodiment of the present invention.

[0023] like Figures 1 to 3 As shown, the deformation control device for the rockfill side of the goaf-retaining roadway according to an embodiment of the present invention includes an anchoring assembly 1 and a rockfill retaining support 2. The anchoring assembly 1 includes an anchor cable 11, an anchor claw component 12, and an adjusting component 13, with the anchor claw component 12 and the adjusting component 13 respectively located at both ends of the anchor cable 11 along its length. Figure 1 As shown, the anchor claw component 12 is located at the rear end of the anchor cable 11, and the adjusting component 13 is located at the front end of the anchor cable 11. The anchor claw component 12 is adapted to be installed within the rockfill wall 4, and the adjusting component 13 is adapted to be installed within the roadway 3. The position of the adjusting component 13 relative to the anchor cable 11 is adjustable to provide the anchor claw component 12 with a preload to support the rockfill wall 4. The baffle plate 22 support component is adapted to be installed within the roadway 3 and is used to support the outer wall of the rockfill wall 4.

[0024] According to an embodiment of the present invention, the deformation control device for gangue slope protection in a goaf-side roadway can install the anchor claw component 12 inside the gangue slope 4. By changing the position of the adjusting component 13 relative to the anchor cable 11, a preload force supporting the gangue slope 4 is provided to the anchor claw component 12, thereby forming active support for the gangue slope 4 without waiting for the deformation of the gangue slope 4 to stabilize, thus improving the support effect of the gangue slope 4. In addition, by installing the gangue retaining support component 2 inside the roadway 3 to support the outer wall of the gangue slope 4, passive support is formed for the gangue slope 4. Therefore, the deformation control device for gangue slope protection in a goaf-side roadway according to an embodiment of the present invention can improve the quality of roadway formation by setting the above two support structures, and the structural design is reasonable with good support effect.

[0025] In some embodiments, the anchor claw component 12 includes a connector 121 and an anchor claw 122. The connector 121 is sleeved on the rear end of the anchor cable 11, and the anchor claw 122 is disposed on the connector 121, extending obliquely toward the front end of the anchor cable 11. It is understood that the anchor claw 122 is barbed. When it is necessary to lock the anchoring component 1, the anchor cable 11 can be moved by adjusting the component 13, and the collapsed gangue will naturally surround the device. After the gangue has collapsed, the anchor claw 122 can be firmly fixed in the gangue side 4 to form active support for the gangue side 4.

[0026] Specifically, there are multiple anchor claws 122. Some anchor claws 122 are arranged circumferentially along the connector 121, and other anchor claws 122 are arranged axially along the connector 121, thereby further improving the stability of the anchoring assembly 1.

[0027] Optionally, the anchor claw component 12 further includes a first tray 123 and a first locking member 124. The first locking member 124 is located at the rear end of the connector 121 and is detachably connected to the anchor cable 11. The first tray 123 is located between the connector 121 and the first locking member 124. It is understood that when assembling the anchoring component 1, the connector 121 can be first fitted onto the anchor cable 11, then the first tray 123 can be assembled onto the rear end of the connector 121, and then the first locking member 124 can be installed onto the rear end of the first tray 123. This allows the anchor claw component 12 to be locked, and the installation and disassembly are convenient, simplifying the construction process.

[0028] Furthermore, the adjusting component 13 includes a second locking member 131, a second tray 132, and a third tray 133. All three are mounted on the anchor cable 11. The third tray 133 is closer to the rockfill side 4 than the second tray 132. The second locking member 131 is located on the side of the second tray 132 opposite to the third tray 133. The third tray 133 has an abutment portion adapted to contact the surface of the rockfill side 4. It is understood that, as... Figure 1 As shown, the second tray 132 is located to the left of the third tray 133, and the second locking member 131 is located to the left of the second tray 132. The second locking member 131, the second tray 132, and the third tray 133 are all detachably connected to the anchor cable 11. For example, the third tray 133 is an adaptive tray, and the abutment portion on the third tray 133 can contact the surface of the gangue side 4, thereby further improving the support effect of the gangue side 4 and increasing its stability.

[0029] Understandably, the installation process for anchoring component 1 is as follows.

[0030] S1: Insert the anchor claw component 12 into the anchor cable 11, which can be a steel strand;

[0031] S2: Insert the first tray 123 into the anchor cable 11 from the rear and place it behind the anchor claw component 12;

[0032] S3: Place the first locking member 124 behind the first tray 123 and lock it.

[0033] S4: Place the part of the anchor cable 11 containing the anchoring component, the first tray 123 and the first locking component 124 behind the hydraulic support, and pull the part of the adjusting component 13 to be installed into the roadway 3. When the hydraulic support moves forward, the collapsed gangue will naturally surround the device. After the gangue collapses completely.

[0034] S5: After the hydraulic support of the working face is 3m away, the third tray 133, the second tray 132 and the second locking member 131 are installed in sequence at the pulled-out end. The second locking member 131 is used to apply sufficient prestress to form active support for the gangue side 4 without waiting for the gangue to deform and stabilize.

[0035] In some embodiments, the rockfall retaining member 2 includes a support column 21 and a baffle plate 22, with the baffle plate 22 disposed at one end of the support column 21 (e.g., Figure 3 The upper end of the central support column), the baffle 22 is adapted to abut against the outer wall of the gangue side 4, and the support column 21 is adapted to be inclinedly supported in the tunnel 3.

[0036] Understandably, the rockfall retaining support 2 consists of two parts: a support column 21 and a baffle plate 22, which are welded together. The baffle plate 22 can expand the range of support resistance provided by the inclined support column 21 to the rockfall slope 4, transforming point support into surface support, thereby further expanding the support effect and support range.

[0037] Optionally, the retaining rock support component 2 can be prefabricated on the ground. After the anchoring components 1 are installed, a retaining rock support component 2 is installed every 2m along the length of the roadway 3. For example, there are multiple anchoring components 1, with two anchoring components 1 arranged at intervals along the vertical direction of the rockfill side 4, and the retaining rock support component 2 is placed between the two anchoring components 1, thereby further improving the support effect of the deformation control device for the rockfill side in the goaf-retention roadway.

[0038] In summary, the operation process of the goaf retaining gangue deformation control device of the present invention is simple, easy to master, and does not affect the working face advance speed.

[0039] In addition, the deformation control device for gangue slope along the goaf in the embodiments of the present invention is simple to process and has a low threshold. It can be processed in general mines, which facilitates large-scale universal promotion. It can also improve the deformation of gangue slope to a certain extent and improve the quality of roadway formation.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A device for controlling deformation of gangue sidewalls in goaf-retention tunnels, characterized in that, include: An anchoring assembly, comprising an anchor cable, an anchor claw component, and an adjusting component, wherein the anchor claw component and the adjusting component are respectively disposed at both ends of the anchor cable along its length, the anchor claw component is adapted to be disposed within a rockfill slab, and the adjusting component is adapted to be disposed within a roadway, wherein the position of the adjusting component relative to the anchor cable is adjustable to provide a preload force to the anchor claw component to support the rockfill slab, thereby forming active support for the rockfill slab; A rockfall retaining support is provided, which is adapted to be installed in the roadway and is used to support the outer wall of the rockfall slope, thereby forming passive support for the rockfall slope. The rockfall retaining support includes a support column and a baffle plate. The baffle plate is disposed at one end of the support column and is adapted to abut against the outer wall of the rockfall slope. The support column is adapted to be inclinedly supported in the roadway.

2. The deformation control device for gangue slope along the goaf as described in claim 1, characterized in that, The anchor claw component includes a connector and an anchor claw. The connector is sleeved on the rear end of the anchor cable, and the anchor claw is disposed on the connector, with the anchor claw extending obliquely toward the front end of the anchor cable.

3. The deformation control device for the rockfill side of the goaf-retaining roadway according to claim 2, characterized in that, There are multiple anchor claws, and the multiple anchor claws are arranged at intervals along the circumferential direction and / or the axial direction of the connector.

4. The deformation control device for the rockfill side of the goaf-retaining roadway according to claim 2, characterized in that, The anchor claw component further includes a first tray and a first locking member. The first locking member is located at the rear end of the connector and is detachably connected to the anchor cable. The first tray is located between the connector and the first locking member.

5. The deformation control device for the rockfill side of the goaf-retaining roadway according to claim 3, characterized in that, The adjusting component includes a second locking member, a second tray, and a third tray. The second locking member, the second tray, and the third tray are all disposed on the anchor cable. The third tray is closer to the rockfill side than the second tray. The second locking member is disposed on the side of the second tray away from the third tray. The third tray is provided with an abutment portion adapted to contact the rockfill side.

6. The deformation control device for the rockfill side of the goaf-retaining roadway according to any one of claims 1-5, characterized in that, There are multiple anchoring components, with two of the anchoring components arranged at intervals along the vertical direction of the rockfill side, and the rockfill retaining support is located between the two anchoring components.

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