Temporary supporting method for tunneled roadway

A temporary support and temporary support technology, which is applied to temporary shields, tunnels, tunnel linings, etc., can solve problems such as the inability to effectively avoid repeated support of the roof, and the inability to fundamentally solve the problem of roadway temporary support

Inactive Publication Date: 2016-09-28
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "Coal Mine Safety Regulations" stipulates that "empty operations are strictly prohibited on the excavation face". Temporary support devices on the excavat

Method used

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  • Temporary supporting method for tunneled roadway
  • Temporary supporting method for tunneled roadway
  • Temporary supporting method for tunneled roadway

Examples

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Example Embodiment

[0017] Please refer to the figure, the ultra-long movable temporary support of the excavation roadway of the present invention includes the welding parts of the support and the support hydraulic system

[0018] 1. A roadway temporary support method, comprising cooperating with a roadheader to temporarily support the new excavation exposed roof of the roadheader, utilizing the retractable temporary support of the roadway to assist the permanent support operation of the roadway, characterized in that: the roadway is excavated The specific operation steps of temporary support are as follows:

[0019] Step 1: Arrange a group of shrinkable temporary supports in the roadway from the roadway excavation end in the roadway that has completed permanent support; the roadheader is at the front end of the entire support group, and the support group spans the roadheader to support the roof of the roadway and side rails to provide support for the excavation working face. This state is the in...

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Abstract

A temporary support method for an excavation roadway, which solves the problems existing in the existing excavation roadway operation, such as empty roof operation, broken roof due to repeated support, and low operation efficiency, including when the retractable temporary support of the excavation roadway is used in conjunction with the roadheader. For the temporary support of the exposed roof of the new excavation of the roadheader, the retractable temporary support of the tunnel is used to assist the permanent support of the roadway. The method is reasonable in design, mature and reliable in technology, and the support equipment is stable and safe. The operation method is called continuous excavation and continuous anchoring and protection operation, which reduces the preparation time wasted between the two processes of excavation and anchoring and protection, significantly improves the efficiency of excavation and anchoring and protection, and realizes temporary support for the newly exposed roof of the excavation working face. protection to improve the safety of the excavation face.

Description

technical field [0001] The invention relates to a temporary support method for an excavation roadway. In particular, it is a method of temporarily supporting the exposed roof of the new excavation of the tunneling machine when the retractable temporary support of the excavation roadway cooperates with the roadheader, and using the retractable temporary support of the tunneling roadway to assist the permanent support of the roadway. It is mainly used in underground The excavation working face provides temporary mechanized support for the newly exposed roof and sides during the excavation operation of the excavation machine, assists the permanent support operation, and provides effective safety guarantee for the operators. The invention belongs to the technical field of roadway support technology for roadway excavation. Background technique [0002] In the current mining, especially in the underground mining of coal mines, the tunneling operation of the underground roadway is...

Claims

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Application Information

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IPC IPC(8): E21D11/00E21D20/00E21D19/02
CPCE21D11/00E21D19/02E21D20/00
Inventor 孟国营时剑文汪爱明刘剑程晓涵刘跃袁文琦李栋杜岩孙珂肖雅静张妙恬冯禹王富勇
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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