机译:钢纤维混凝土力学性能试验及其在深层地下工程中的应用
College of Resources and Safety Engineering Central South University Changsha Hunan 410083 China;
Henan Polytechnic University Jiaozuo Henan 454000 China;
Guizhou Kaiyang Phosphor Mine Group Co. Guiyang Guizhou 532000 China;
volume ratio; steel fiber concrete; mechanical performance; experiment; great depth; soft rock tunnel;