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According to actual engineering of a highway neighborhood tunnel, The surrounding rock stress field monitoring of bench cut method has done and the field monitoring data has been compared with numerical simulation results. The result shows: The surrounding rock stress release with time in excavation, every construction step can effect the stress of surrounding rock and lining. The construction of...
Large-scale goaf appeared after underground mining, and the widespread connection of the goaf is main reason causing surface subsidence. Surface subsidence is a serious engineering geological disaster impacted on ecological environment, which has plagued the underground mining enterprises at home and abroad. In order to ensure safety mining of the deep level and effectively control surface subsidence,...
In order to study the support design of large section roadway, filed experiment research of anchor-cable roadway support was carried out, with the engineering background of Zhaozhuang Mine of Jincheng Coal Industry Group. Field monitoring results indicate that, total deformation of Lane5101 is greater than Lane 5102 at the same amount of time, the ribs convergence value of Lane 5101 is 250mm, while...
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