Underground mine soft rock roadway ground pressure safety early warning monitoring method

Abstract

The invention relates to an underground mine soft rock roadway ground pressure safety early warning monitoring method, and belongs to the technical field of heavy rail ultrasonic flaw detection methods. According to the technical scheme, the method comprises the steps that firstly, a soft rock roadway which is extremely critical to safety production is selected as a key monitoring area, ground pressure monitoring equipment is installed, and ground pressure monitoring is mainly stress and deformation monitoring; then roadway surrounding rock pressure monitoring and data analysis are conducted, and roadway surrounding rock deformation monitoring and data analysis are conducted; finally, all-dimensional remote dynamic monitoring is conducted. The method has the advantages that soft rock roadway surrounding rock stress monitoring and surrounding rock deformation monitoring are closely linked together for comprehensive ground pressure monitoring, continuous collection, online identification, intelligent analysis and disaster early warning of underground mine soft rock roadway ground pressure dynamic information are achieved, ground pressure disaster control measures are taken in time according to the monitoring condition, and the mine safety production major disaster early warning capacity is improved; the effect of capturing roadway surrounding rock pressure and deformation rules is remarkable, field organization and implementation are facilitated, the method is economical and feasible, and reference can be provided for design of a broken stope bottom structure and a rock drilling chamber deformation monitoring system.

Description

technical field [0001] The invention relates to an early warning monitoring method for ground pressure safety in soft rock roadways of underground mines, and belongs to the technical field of ultrasonic flaw detection methods for heavy rails. Background technique [0002] The appearance of ground pressure is the deformation, cracking, breaking, chipping, collapse and roof fall of the surrounding rock mass and support structure caused by the formation pressure acting on the mining tunnel and stope. It is one of the main reasons for the difficulty of mining underground deposits. . Many domestic mines suffer from this, such as Zhangjiawa Iron Mine, Shouyun Iron Mine, Xiaoguanzhuang Iron Mine, Xishimen Iron Mine, Yushiwa Iron Mine, Chengchao Iron Mine, Jinshandian Iron Mine, Maoyuan Iron Mine, Jinchuan Nickel Mine A large number of mines, such as Tonghua Jien Nickel Mine, Fanshan Phosphate Mine, Kaiyang Phosphate Mine, Jiaojia Gold Mine, Jinfeng Gold Mine, Fengshan Copper Mine,...

AI Technical Summary

Problems solved by technology

[0003] Although scholars at home and abroad have done a lot of research work on the mechanism of rock pressure, rock pressure monitoring and control technology, etc. In terms of monitoring, the monitoring means are relatively independent, and there are problems such as insufficient test parameters, comprehensive processing of monitoring information, and remote transmission and processing of on-site data collection. A systematic and reliable observation method has not yet been formed.

Moreover, the installation accuracy of monitoring sensors is required to be high, resulting in unstable monitoring data and unable to effectively guide mine safety production

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