To the deep rock engineering, stress state of rock mass directly influences the stability of project.

对于深埋岩石工程，岩体的地应力状态直接关系到工程的稳定性。

youdao

The initial stress is one of the most important parameters for the design of underground rock engineering, and hydro-fracturing method is a robust technique for stress measurement in deep rock mass.

初始地应力状态是岩石地下工程设计中的重要参数，而水压致裂法是深部岩体应力测量的理想方法。

youdao