At last, The paper analyzes the calculation of the shallow cover load part, and states the mechanic concept of rock dynamic properties of the NATM.
At last, The paper analyzes the calculation of the shallow cover load part, and states the mechanic concept of rock dynamic properties of the NATM.
最后分析了浅埋段荷载的计算，阐述了新奥法的岩体动态性质的力学概念。