Study On The Control Of Massive And Discreteness Cracking Wall Rock And Bolt Supporting

Massive and discreteness cracking terrenes contain many joint planes and fissures and are divided into many non-uniform cracking rocks, how to support the entries with massive and discreteness cracking wall rock is still a puzzle. This paper takes massive and discreteness cracking wall rocks as the research object, the Geology condition of ChengZhuang coal mine 3216 entry as the studying background, carried on the systematic analysis and research to the supporting techniques for massive and discreteness cracking wall rocks by the way of spot investigation, theory analysis, geo-mechanics evaluation, numerical simulation and local observation.Based on the spot investigation and taking mechanics experiment on the rocks which were taken out of well we made the analysis and evaluation on the geo-mechanics characters of wall rocks in ChengZhuang coal mine, and aiming at the no continuity character of this type of wall rock we take research on its stability and the mowing regular after destabilization and set...