In allusion to the engineering background of a roadway embedded about one kilometer underground in Shandong Yuncheng Mine, study is taken to get the strength attenuation law of surrounding rock by ways of true triaxial physical simulation, rock sample test with MTS, theoretical analysis and numerical simulation. The main research contents and conclusions are as follows:
(1) With WYQ1000-I large scale three-dimension test system for underground engineering simulation, the full unloading process of surrou...
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