Theory and application of supporting in deep soft roadways
BAI Jianbiao 1, WANG Xiangyu 1, JIA Mingkui 2, HOU Chaojiong 1
1.State Key Laboratory of Coal Resources and Mine Safety China University of Mining Technology Xuzhou 221008 China 2.Jiaozuo Coal Mining Group Corporation Jiaozuo 454100 China
Abstract：Based on the surrounding pressure,shrinkage of whole body,strong deformation characteristics of soft rock in deep roadways,a stress-relief method of active control was established.It was put forward that the expansive deformation energy of surrounding rock would be released,the high stress be transferred to the deeper surrounding rock,and the stress in shallow rock be reduced.Considering the geological conditions of the west tunnel in Guhanshan Mine,the rational space for deformation release was determined.Using high-water rapid hardening materials to reinforce the mudstone easily weakened and expanded by water,the rational time of the secondary support was obtained.The obtained results were successfully applied in the coal mining,and the large deformation of soft rock in deep roadways could be controlled effectively.
柏建彪；王襄禹；贾明魁；侯朝炯；. 深部软岩巷道支护原理及应用[J]. 岩土工程学报, 2008, 30(5): 632-635.
BAI Jianbiao 1, WANG Xiangyu 1, JIA Mingkui 2, HOU Chaojiong 1. Theory and application of supporting in deep soft roadways. Chinese J. Geot. Eng., 2008, 30(5): 632-635.
