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Coal roadway rapid excavation temporary supporting system and supporting method applying same

A temporary support and coal roadway technology, which is applied in the direction of earth drilling, mine roof support, mining equipment, etc., can solve the problems of structure and operation convenience, safety restrictions, limited support distance, complex structure, etc., and achieve coal mining The effect of high tunneling efficiency, long support distance and high safety

Inactive Publication Date: 2013-12-25
四川省华蓥山煤业股份有限公司李子垭南煤矿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual application process, it was gradually found that the structure of the device was relatively complex, the manufacturing cost was high, and guide rails were required, the operation of moving the bracket forward was cumbersome, and there were certain safety hazards; in addition, due to its structure and operation convenience, safety and other restrictions, its support distance is limited, not suitable for rapid excavation requirements

Method used

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  • Coal roadway rapid excavation temporary supporting system and supporting method applying same
  • Coal roadway rapid excavation temporary supporting system and supporting method applying same
  • Coal roadway rapid excavation temporary supporting system and supporting method applying same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1 see figure 1 , figure 2 , image 3 , Figure 4 , a temporary support system for coal roadway rapid excavation, including two first hydraulic lifting support frame 1 and second hydraulic lifting support frame 2 which are independent of each other and form a front and rear position relationship, the first hydraulic lifting support frame 1 and the second hydraulic lifting support frame Two hydraulic lift support frame 2 is provided with the front probe support beam part that can form the support section of double support to the roof of coal roadway, the base of the first hydraulic lift support frame 1 and the second hydraulic lift support frame 2 are all In the shape of a sliding shoe, a propulsion hydraulic cylinder 3 is provided between the first hydraulic lifting support frame 1 and the second hydraulic lifting support frame 2; a storage space for storing metal mesh rolls is provided on the first hydraulic lifting support frame 1 Roller 4, when the first hyd...

Embodiment 2

[0043] Example 2 see figure 1 , figure 2 , image 3 , Figure 4 , a coal roadway rapid tunneling temporary support method, the method uses the coal roadway rapid tunneling temporary support system described in embodiment 1 to implement the temporary support of coal roadway excavation, comprising the following steps,

[0044] In the first step, the temporary support system is placed in a coal roadway with a set depth of excavation, and the first probing beam 13 of the first hydraulic lifting support frame 1 and the front beam 13 of the second hydraulic lifting support frame 2 are placed A part of the second front probe beam 23 extends below the roof of the coal roadway;

[0045] In the second step, the wire mesh stored on the storage roller 4 of the first hydraulic lift support frame 1 is pulled out upwards, and the first hydraulic lift support frame 1 of the wire mesh is moved toward the second hydraulic lift support frame. The frame 2 direction is laid on the top surface...

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Abstract

The invention discloses a coal roadway rapid excavation temporary supporting system and a supporting method applying the same. The system comprises two independent first hydraulic lifting supporting frame and second hydraulic lifting supporting frame which are in a front-and-rear position relation; supporting forepoling bar parts of the first hydraulic lifting supporting frame and the second hydraulic lifting supporting frame can be provided with supporting sections with a double-supporting effect on a coal roadway top plate; bases of the first hydraulic lifting supporting frame and the second hydraulic lifting supporting frame are of a skid shoe shape; a propelling hydraulic cylinder is arranged between the first hydraulic lifting supporting frame and the second hydraulic lifting supporting frame; the first hydraulic lifting supporting frame is provided with a storage roller for storing a metal net coil; and when the first hydraulic lifting supporting frame moves forwards, the metal net coil on the storage roller can be unfolded and laid on the supporting forepoling bar parts of the first hydraulic lifting supporting frame and the second hydraulic lifting supporting frame. The method applies the supporting system; two supporting frames are utilized to alternately support together; and a coal roadway continuous excavation temporary support can be formed. The coal roadway rapid excavation temporary supporting system and the supporting method have the beneficial effects that the supporting system has a simple structure, is convenient to operate and has high safety; and the supporting method has a long supporting distance and high mine roadway excavation efficiency.

Description

technical field [0001] The invention relates to a soft coal seam roadway support technology, in particular to a coal roadway rapid excavation temporary support system and a support method using the system. Background technique [0002] In the coal roadway or half-coal roadway excavation before the coal mining operation, the circular excavation method is usually adopted, that is, each excavation of a set distance is regarded as a cycle, and after a cycle of excavation is completed, the roadway is permanently supported. For the soft coal seam, because the self-stability of the coal seam is worse, the soft coal seam at the upper part of the roadway may collapse before the single cycle operation is completed, which not only poses safety hazards, but also reduces the excavation efficiency. The softer the coal seam is, the easier it is for coal seam collapse accidents to occur. In order to ensure the safety of excavation and improve the efficiency of excavation, it is necessary t...

Claims

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Application Information

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IPC IPC(8): E21D23/20
Inventor 秦云文邓志学李正军郑小俊马健杨明平李朝国
Owner 四川省华蓥山煤业股份有限公司李子垭南煤矿
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