Advance support and anti-scour method of rock burst roadway

Abstract

The invention provides an advanced support and anti-scour method for rockburst roadway. The method includes collecting stress data of the advanced roadway of the working face, and analyzing the supporting pressure range and the peak value of the supporting pressure of the advanced roadway of the working face according to the stress data. The support strength of the advanced support pillar is determined based on the peak value of the support pressure, and the pillar specification of the advanced support pillar is determined according to the support strength. Set advanced support struts that meet strut specifications within the bearing pressure range. In the embodiment of the present invention, the advanced support pillar after being supported does not require maintenance and management by staff, which reduces the workload of maintenance and repair, and ensures strict management of personnel in the impact danger area, which significantly improves the effectiveness of rockburst prevention and management. , and also meet the anti-shock requirements.

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...

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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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