Coal mine well wall anti-collapse supporting column

Abstract

The utility model belongs to the field of coal mine supporting devices, and provides a coal mine well wall anti-collapse supporting column which comprises a first supporting piece and a second supporting piece, a reinforcing steel plate is arranged on the inner wall of the first supporting piece, and after the first supporting piece and the second supporting piece are spliced, the reinforcing steel plate is arranged on the inner wall of the first supporting piece. The reinforcing steel plate on the inner wall of the first supporting piece extends into the second supporting piece, the butt-joint assembly is connected to the first supporting piece and the second supporting piece, and multi-layer splicing of the first supporting piece and the second supporting piece is achieved through the butt-joint assembly; through the arrangement of the supporting assembly, the supporting performance in the coal mine well wall can be improved, and the firmness in the coal mine well wall is improved.

Description

Technical Field

[0001] The utility model belongs to the field of coal mine supporting devices, in particular to a coal mine shaft wall anti-collapse supporting column. Background Art

[0002] The coal mine shaft wall is an important component of the coal mine shaft. Its main function is to withstand ground pressure, block water gushing, prevent weathering of surrounding rocks, and ensure the stability and safety of the shaft.

[0003] Before mining, support columns are installed on the shaft walls of coal mines. Common ones are one-piece concrete support columns, which are prefabricated and placed layer by layer in the shaft. However, during the mining process, due to the increase in excavation depth and the destruction of the strata, the stress on the shaft walls increases, causing the support columns to be squeezed and cracked, resulting in poor stability of the shaft. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a coal mine wall anti-collapse support column to solve the problem that the support column installed in the shaft in the prior art has poor extrusion cracking stability due to increased excavation depth and damage to the stratum.

[0005] A coal mine shaft wall anti-collapse support column, comprising a first support member and a second support member, wherein the inner wall of the first support member is provided with a reinforcing steel plate, and when the first support member and the second support member are spliced ​​together, the reinforcing steel plate on the inner wall of the first support member extends into the interior of the second support member;

[0006] A docking assembly is connected to the support member 1 and the support member 2, and the multi-layer splicing of the support member 1 and the support member 2 is achieved through the docking assembly.

[0007] Preferably, the support member 1 and the support member 2 are prefabricated from concrete, and a waterproof layer is provided on the outer walls of the support member 1 and the support member 2.

[0008] Preferably, the height of the waterproof layer on the second support member is greater than the height of the waterproof layer on the first support member.

[0009] Preferably, the splicing assembly includes a plug-in and a supporting ring, the plug-in and the support member 2 are integrally formed, and the plug-in is distributed at intervals on the top and bottom of the support member 2, and the top and bottom of the support member 1 are provided with support grooves that are spaced apart from each other. When the support member 1 and the support member 2 are spliced ​​together, the plug-in is inserted into the support groove.

[0010] Preferably, the carrying rings are symmetrically distributed on the inner wall of the support member, and matching grooves are provided on the back sides of the two carrying rings, and the reinforcing steel plates are inserted into the matching grooves.

[0011] Preferably, a slit groove for allowing adhesive to pass through is provided between the second support member and the first support member.

[0012] Preferably, guide lights are provided on opposite surfaces of the two carrying rings at intervals, and the guide lights are externally connected to a power source.

[0013] Preferably, the plug-in on the support member 1 can also be in the form of an integrated ring, and the support groove on the support member 2 can also be in the form of an integrated ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The utility model arranges support member 1 and support member 2 on the inner wall of the coal mine shaft, and support member 1 and support member 2 are stacked together in multiple layers by splicing. During the installation process, the reinforcement steel plate on the inner wall of support member 1 will extend into the interior of support member 2, thereby realizing a double-layer reinforcement method of outer concrete and inner steel plate, improving the supporting force of the coal mine shaft, enhancing the bearing capacity of the shaft wall, and improving the overall stability of the shaft wall.

[0016] 2. The utility model provides a waterproof layer on the outer wall of support member 2 and support member 1, thereby effectively preventing groundwater from entering support member 2 and support member 1, causing support member 2 and support member 1 to become damp and crack over a long period of time, thereby affecting the strength of support member 2 and support member 1. In addition, the height of the waterproof layer on support member 2 is greater than the height of the waterproof layer on support member 1. After support member 2 is assembled on support member 1, the waterproof layer on support member 2 will extend over the gap where support member 1 and support member 2 are connected, thereby effectively preventing groundwater from entering the interior of the well wall through the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the integral coal mine wall support column component of the utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the integral coal mine wall support column component of the utility model Figure 2 ;

[0019] Figure 3 This is a cross-sectional view of the internal components of the support member 1 and the support member 2 of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the support member 2 and the carrying ring and other components of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the second embodiment of the support member 1 and the support member 2 of the present invention.

[0022] In the picture:

[0023] 1. Support part 1; 2. Support part 2; 3. Reinforcement steel plate; 4. Waterproof layer; 5. Insert; 6. Loading ring; 7. Support groove; 8. Matching groove; 9. Slit groove; 10. Guide light. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] As attached Figure 1 To the attached Figure 4 As shown:

[0026] Embodiment 1: The utility model provides a support column for preventing the wall from collapsing in a coal mine, comprising a support member 1 and a support member 2 2. The inner wall of the support member 1 is provided with a reinforcing steel plate 3. When the support member 1 and the support member 2 2 are spliced ​​together, the reinforcing steel plate 3 on the inner wall of the support member 1 extends into the interior of the support member 2 2.

[0027] The docking assembly is connected to the support member 1 and the support member 2 2, and the multi-layer splicing of the support member 1 and the support member 2 2 is achieved through the docking assembly.

[0028] It should be noted that by arranging support member 1 and support member 2 2 on the inner wall of the coal mine shaft, support member 1 and support member 2 2 are stacked together in multiple layers by splicing. During the installation process, the reinforcing steel plate 3 on the inner wall of support member 1 will extend to the interior of support member 2 2, thereby realizing a double-layer reinforcement method of outer concrete and inner steel plate, improving the supporting force of the coal mine shaft, enhancing the bearing capacity of the shaft wall, and improving the overall stability of the shaft wall.

[0029] In this embodiment, the support member 1 and the support member 2 2 are prefabricated from concrete, and a waterproof layer 4 is provided on the outer walls of the support member 1 and the support member 2 2 .

[0030] It should be noted that support member 1 and support member 2 2 are prefabricated with concrete, thereby ensuring the support strength of the well wall and effectively avoiding collapse. A waterproof layer 4 is set on the outer wall of support member 2 2 and support member 1, thereby effectively preventing groundwater from entering support member 2 2 and support member 1, causing support member 2 2 and support member 1 to become damp and crack in the long term, affecting the strength of support member 2 2 and support member 1.

[0031] In this embodiment, the height of the waterproof layer 4 on the second support member 2 is greater than the height of the waterproof layer 4 on the first support member 1.

[0032] It should be noted that, by making the height of the waterproof layer 4 on support member 2 greater than the height of the waterproof layer 4 on support member 1, after support member 2 is assembled on support member 1, the waterproof layer 4 on support member 2 will extend over the gap where support member 1 and support member 2 are connected, thereby effectively preventing groundwater from entering the well wall through the gap.

[0033] In this embodiment, the splicing assembly includes an insert 5 and a carrying ring 6. The insert 5 and the support member 2 2 are integrally formed, and the insert 5 is spaced apart at the top and bottom of the support member 2 2. The top and bottom of the support member 1 are provided with support grooves 7 that are spaced apart from each other. When the support member 1 and the support member 2 2 are spliced ​​together, the insert 5 is inserted into the support groove 7.

[0034] It should be noted that by providing the insert 5 on the second support member 2, the material of the insert 5 can also be made of the same concrete, and the height of the insert 5 is greater than the height of the support groove 7, so that after the first support member 1 and the second support member 2 are assembled, the insert 5 will be inserted into the support groove 7 and a portion will leak out, thereby forming a gap groove 9 between the first support member 1 and the second support member 2;

[0035] By assembling the plug-in 5 and the support groove 7, the support member 1 and the support member 2 2 can be easily assembled together, thereby ensuring the stability between the two.

[0036] In this embodiment, the carrying rings 6 are symmetrically distributed on the inner wall of the support member. Matching grooves 8 are opened on the back sides of the two carrying rings 6 , and the reinforcing steel plates 3 are inserted into the matching grooves 8 .

[0037] It should be noted that the reinforcing steel plate 3 can be inserted into the matching groove 8 after the support member 1 and the support member 2 are assembled, thereby further improving the strength of the support member 1 and the support member 2, and effectively avoiding collapse.

[0038] In this embodiment, a slit groove 9 is provided between the second support member 2 and the first support member 1 for allowing the adhesive to pass through.

[0039] It should be noted that a gap groove 9 is set between support member 1 and support member 2 2. After the two are assembled, adhesive can be injected into the gap groove 9 to stick support member 1 and support member 2 2 together. On the one hand, it not only effectively seals the gap between the two to avoid water ingress in the later stage, but also connects support member 1 and support member 2 2 into a whole, thereby improving the overall compressive strength.

[0040] In this embodiment, guide lights 10 are provided on opposite surfaces of the two carrying rings 6 at intervals, and the guide lights 10 are connected to an external power source.

[0041] It should be noted that by setting a guide light 10 with an external power supply on the supporting ring 6, the guide light 10 can emit flashing light of different colors, so that after the staff enters the wellbore, the emitted guide light 10 can illuminate the staff in the wellbore, thereby avoiding bumps.

[0042] As attached Figure 5 As shown:

[0043] Embodiment 2: The present invention provides a support column for preventing the wall of a coal mine from collapsing. The plug 5 on the support member 1 can also be in the form of an integrated ring, and the support groove 7 on the support member 2 2 can also be in the form of an integrated ring.

[0044] As a second embodiment of the present invention, the plug-in 5 can be designed into an integrated annular form, and the support groove 7 on the support member 2 can be designed into a one-circle annular form. The plug-in 5 also cooperates with the support groove, thereby reducing the difficulty of assembling the support member 1 and the support member 2, making it more convenient for assembly and reducing the construction time.

[0045] From the above, it can be seen that when it is necessary to support the coal mine shaft wall, the prefabricated support member 1 that matches the size of the shaft wall is first placed at the bottom of the shaft wall. This process can be done by hoisting to ensure that the support member 1 is in a horizontal state after being placed at the bottom of the shaft wall. The top of the support member 1 is provided with spaced plug-ins 5. When the installation of the support member 1 is completed, the support member 2 2 is hoisted in the same way. The top and bottom of the support member 2 2 have spaced support grooves 7, which are matched with the plug-in 5 to complete the assembly of the support member 1 and the support member 2 2. Since the height of the plug-in 5 is greater than the height of the support groove 7, a gap groove 9 will be formed between the top and bottom surfaces of the support member 2 2 and the support member 1. At this time, the staff will pass the adhesive into the gap groove 9 to achieve the connection between the support member 1 and the support member 2 2.

[0046] The inner wall of support member 1 is provided with a reinforcing steel plate 3. When the upper support member 2 2 is assembled with the lower support member 1, the matching groove 8 on support member 2 2 will be inserted into the reinforcing steel plate 3 to cooperate with it, thereby realizing a double-layer reinforcement method of outer concrete and inner steel plate, improving the supporting force of the coal mine shaft, enhancing the bearing capacity of the shaft wall, and improving the overall stability of the shaft wall.

[0047] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A coal mine wall anti-collapse support column, characterized in that: include; Support member 1 (1) and support member 2 (2), wherein the inner wall of support member 1 (1) is provided with a reinforcing steel plate (3), and when support member 1 (1) and support member 2 (2) are spliced ​​together, the reinforcing steel plate (3) on the inner wall of support member 1 (1) extends into the interior of support member 2 (2); A docking assembly is connected to the support member 1 (1) and the support member 2 (2), and the multi-layer splicing of the support member 1 (1) and the support member 2 (2) is achieved through the docking assembly.

2. The anti-collapse support column for a coal mine wall according to claim 1, characterized in that: The support member 1 (1) and the support member 2 (2) are prefabricated from concrete, and a waterproof layer (4) is provided on the outer walls of the support member 1 (1) and the support member 2 (2).

3. The coal mine wall anti-collapse support column according to claim 2, characterized in that: The height of the waterproof layer (4) on the second support member (2) is greater than the height of the waterproof layer (4) on the first support member (1).

4. The coal mine wall anti-collapse support column according to claim 1, characterized in that: The splicing assembly includes a plug-in (5) and a bearing ring (6), wherein the plug-in (5) and the support member 2 (2) are integrally formed, and the plug-in (5) is spaced apart at the top and bottom of the support member 2 (2), and the top and bottom of the support member 1 (1) are provided with support grooves (7) spaced apart and opened relative to each other, and when the support member 1 (1) and the support member 2 (2) are spliced ​​together, the plug-in (5) is inserted into the support groove (7).

5. The coal mine wall anti-collapse support column according to claim 4, characterized in that: The carrying rings (6) are symmetrically distributed on the inner wall of the support member. The back surfaces of the two carrying rings (6) are provided with matching grooves (8), and the reinforcing steel plates (3) are inserted into the matching grooves (8).

6. The coal mine wall anti-collapse support column according to claim 1, characterized in that: A slit groove (9) for allowing adhesive to pass through is provided between the second support member (2) and the first support member (1).

7. The coal mine wall anti-collapse support column according to claim 4, characterized in that: Guide lights (10) are arranged at intervals on the opposite surfaces of the two carrying rings (6), and the guide lights (10) are externally connected to a power source.

8. The coal mine wall anti-collapse support column according to claim 1, characterized in that: The plug-in unit (5) on the second support member (2) can also be in the form of an annular integrated unit, and the support groove (7) on the first support member (1) can also be in the form of an annular integrated unit.

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