The interaction between soft-weak Surrounding Rock and initial support of deep buried tunnels has become one of the most important subjects in underground engineering research.
深埋隧道软弱围岩与初期支护的相互作用是地下工程研究的重要课题之一。
Surrounding rock of underground engineering has high nonlinear characteristics, so its mechanical behaviors can be studied and predicted by nonlinear theories.
地下工程围岩体具有高度的非线性，可以借助当代非线性科学研究和预测它的力学行为。
For the design of an underground engineering, THS stress and displacement field of the surrounding rock are among the main problems to be solved first.
围岩的应力场和位移场是地下工程设计首先必须解决的主要问题之一。
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