Full-section grouting construction method for coal mine roadway
A technology of full-section grouting and coal mine roadway, which is applied in tunnels, tunnel linings, mining equipment, etc., can solve the problems of frequent equipment handling, unreasonable procedures, and high labor intensity, so as to improve the efficiency of grouting construction and reduce auxiliary projects The effect of reducing labor intensity
Inactive Publication Date: 2021-02-12
SHANXI JINMEI GRP TECH RESEACH INST
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Problems solved by technology
[0003] The present invention aims at a series of problems such as low construction efficiency, frequent equipment handling, high labor intensity, unreasonable process, and other problems in the method of grouting, strengthening and sealing the broken surrounding rock of the roof when the cracks in the surrounding rock of the existing coal mine roadway are developed and the roof is sprayed with water. Provide a full-section grouting construction method for coal mine roadway
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[0014] The present invention will be further described in conjunction with the accompanying drawings.
[0015] A full-section grouting construction method for a coal mine roadway, comprising the following steps:
[0016] In the first step, according to the layout parameters of the grouting reinforcement drilling in the surrounding rock of the coal mine roadway, when the roadway side and the roadway roof are arranged with grouting reinforcement drilling holes in a section, the drilling construction of the roadway side grouting drilling is carried out first , and then carry out the drilling construction of the grouting drilling on the roof of the roadway. After completing the construction and grouting of all the grouting drilling in the same section, move the drilling rig to construct the drilling of the next section;
[0017] In the second step, after the construction of the roadway side and the roadway roof grouting reinforcement of the same section is completed, the boreholes...
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The invention discloses a full-section grouting construction method for a coal mine roadway, and belongs to the field of mining engineering. The problems of low construction efficiency, frequent equipment carrying, high labor intensity, unreasonable process and the like of an existing grouting reinforcement plugging method during water spraying of a surrounding rock fracture development top plateof the coal mine roadway can be solved. The method comprises the steps that drilling construction of grouting drill holes of roadway side parts is conducted firstly, then drilling construction of grouting drill holes of a roadway top plate is conducted, after the grouting drill holes in the same section are completely constructed and grouted, a drilling machine is moved to construct the drill holes in the next section, and after grouting reinforcement drill hole construction of the roadway side parts and the roadway top plate of the same section is completed, the drill holes in the same section are grouted, and firstly, grouting construction is conducted on the drill holes of the two roadway side parts from bottom to top; and then grouting construction is conducted on the drill holes of the roadway top plate, the sequential construction from two sides to the middle is adopted so that the labor intensity can be remarkably reduced, and the grouting construction efficiency is greatly improved.
Description
technical field [0001] The invention belongs to the technical field of mining engineering, and in particular relates to a technical method for grouting, reinforcing and sealing the broken surrounding rock of the roof when the cracks in the surrounding rock of the coal mine roadway are developed and the roof is sprayed with water. It can solve a series of problems such as low construction efficiency, frequent equipment transportation, high labor intensity, and unreasonable procedures in the method of grouting the broken surrounding rock of the roof when the cracks in the surrounding rock of the existing coal mine roadway are developed and the roof is sprayed with water. Background technique [0002] After the coal mine roadway is excavated, a plastic zone is formed in the surrounding rock. When it encounters geological structures such as faults and collapsed columns, the structure will be connected to the roof aquifer, which will cause the roof of the roadway to spray water, w...
Claims
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IPC IPC(8): E21D11/10
CPCE21D11/105
Inventor 张江利赵斌陶广美马赛王萌原小路陈志强司朝王朋卫
Owner SHANXI JINMEI GRP TECH RESEACH INST