Impact ground pressure roadway advanced support anti-impact method,

Abstract

The invention provides an impact ground pressure roadway advanced support anti-impact method. The method comprises the steps of collecting stress data of a working face advanced roadway, analyzing a support pressure range and a support pressure peak value of the working face advanced roadway according to the stress data, determining the support strength of an advanced support strut based on the support pressure peak value, determining the specification of the advanced support strut according to the support strength, and arranging the advanced support strut meeting the specification of the strut in the support pressure range. The supported advanced support strut does not need maintenance and management by workers, the maintenance and repair workload is reduced, strict management of personnel in an impact dangerous area is guaranteed, effectiveness of impact ground pressure prevention and control management is remarkably improved, and anti-impact requirements are met.

Description

technical field [0001] The invention relates to the technical field of coal mine safety mining, in particular to a method for advance support and anti-scour of rock burst roadways. Background technique [0002] Due to the concealment of the disaster-causing factors, coal mine disasters often cause casualties, which seriously restricts the control of the death rate of one million tons of coal mines in the country. In recent years, the proportion of casualties caused by rock burst disasters has leapt to the first place among the casualties in coal mine accidents. As a multi-factor coupling dynamic disaster, the breeding process of rock burst is very hidden, and the shock initiation, energy transfer and appearance are completed in just a few seconds, and it has the characteristics of suddenness, complexity, destructiveness, etc. It can cause multiple types and quantities of secondary disasters, resulting in casualties, equipment damage, roadway damage, etc., which seriously th...

AI Technical Summary

Problems solved by technology

[0003] At the current stage, there is a scientific understanding of the mechanism of rock burst disasters and the prevention and control, but the following problems still exist: the front section of the work is facing an empty roadway, and people should be prohibited from entering and leaving according to the degree of danger. Supported by single props or hydraulic supports, the management of equipment still requires personnel maintenance, and it is difficult to implement strict personnel restriction management measures, so maintenance personnel have to continue to be exposed to danger, causing frequent impacts on personnel in the advanced support range land pressure death

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