Coal mine gob-side entry retaining side supporting method

A technology for coal mines and goafs, applied in mining equipment, earthwork drilling, shaft lining, etc., can solve problems such as difficulty in recovery of single columns, failure of single columns, material loss, etc., to shorten moving time and increase recovery rate , the effect of reducing difficulty
CN103758529AInactive Publication Date: 2014-04-30BEIJING HAOHUA ENERGY RESOURCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING HAOHUA ENERGY RESOURCE
Publication Date
2014-04-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a coal mine gob-side entry retaining side supporting method. The coal mine gob-side entry retaining side supporting method comprises the following steps of supporting the coal mine gob-side entry retaining side through intensive individual hydraulic supporting columns; constructing anchor cable supports for the gob-side entry retaining top plates based on the original rocker bolt supports, enabling the gob-side entry retaining to adopt double-line rocker bolt supports, enabling the distance between the rocker bolts to be 2 m and the row distance to be 2.2 m and enabling the anchor bolts which are close to one side of the coal wall to be installed along a certain inclination angle and the anchor bolts which are close to one side of a gob to be installed perpendicular to the top plates; constructing a row of single hydraulic supporting columns on the inner side of the intensive single hydraulic supporting columns after the designed pretress of the anchor bolts is achieved and enabling the column distance to be 1.2 to 1.5 m; enabling the insensitive single hydraulic supporting columns to be out successively from back to front and enabling supplement single hydraulic supporting columns and the installed anchor bolts to be formed into a gob-side entry retaining side auxiliary supporting system. The coal mine gob-side entry retaining side supporting method solves the problem that the gob-side entry retaining side supporting is difficult.
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Description

technical field

[0001] The invention relates to a supporting method. In particular, it relates to a roadside support method for gob-side entry retention in coal mines. Background technique

[0002] Gobside retaining is used along the trough of the working face. According to past experience, single hydraulic props are used for intensive support of gobside retaining. A large number of single columns are required. These single pillars are difficult to recover, and they are difficult to recover. At that time, many single columns have failed or damaged, resulting in a large amount of material loss. Contents of the invention

[0003] The purpose of the present invention is to provide a method for solving the difficulty of retaining support in gob-side entry in coal mines.

[0004] In order to achieve the above object, the present invention has the following technical solutions:

[0005] The present invention is a coal mine gobside retaining roadside support method, which is c...

Claims

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