A roadway support method
A roadway support and roadway technology, applied in the field of roadway support methods and support devices, can solve the problems of roadway collapse and other problems, and achieve low cost and good effect
Active Publication Date: 2016-01-13
CHINA KINGHO ENERGY GRP +1
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Problems solved by technology
[0004] In the above support methods, it is easy to cause roadway collapse
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[0045] The present invention will be described in detail below in conjunction with examples. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.
[0046] figure 1 It is a schematic flow chart of the roadway support method provided by the embodiment of the present invention, figure 2 It is a structural schematic diagram of the roadway support device provided by the embodiment of the present invention.
[0047] An embodiment of the present invention provides a roadway support method, which is realized by a roadway support device. Above-mentioned roadway supporting method comprises the steps:
[0048] Step a, supporting the rear beam 1 , supporting the longitudina...
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The invention discloses a roadway supporting method and a supporting device. The method includes the following steps that firstly, after a rear beam is erected, a girder of the rear beam abuts against a roadway top plate, and a first single column is arranged on the lower portion of the rear beam; secondly, a middle girder is erected, the middle girder is connected with a cross beam of the rear beam, and a temporary single column is erected on the lower portion of the middle girder; thirdly, a front girder is erected, the front girder is connected with the middle girder, and a flat pin is arranged in a joint formed on the connection portion of the front girder and the middle girder; fourthly, the temporary single column is lifted so that the front girder can abut against the side wall of a roadway; fifthly, a second single column is erected on the lower portion of the middle girder, the temporary single column and the flat pin are detached, and the second single column is lifted. According to the roadway supporting method and the supporting device, by means of the arrangement of the rear beam, the middle girder and the front girder, the rear beam abuts against the roadway top plate, the front girder abuts against the side wall of the road wall, and accordingly a soft coal seam is effectively supported.
Description
technical field [0001] The invention relates to the side support of a roadway with a large dip angle and a soft coal seam in coal mining, in particular to a roadway support method and a support device. Background technique [0002] In coal mining, for roadways with large dip angles and soft coal seams, the existing support technology is difficult to effectively control the side of the roadway, and it is prone to collapse. Therefore, the side support of this type of roadway needs higher support. strength. [0003] In the prior art, there are usually three types of roadway side support, bolt support, single column support and shed support. Among them, the bolt support relies on the force of the thread to provide the initial support force of the coal wall. When the force of the coal body on the anchor is greater than the destructive force of the anchor, the anchor will be broken, and when the depth of the crack in the coal is greater than the length of the anchor, the anchor w...
Claims
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IPC IPC(8): E21D11/00E21D17/00
Inventor 周秀山褚万益吕峰
Owner CHINA KINGHO ENERGY GRP