在许多隧道工程中，经如辛普龙大隧道，都要在隧道全面开挖前打一个导洞。
In many projects, like the Simplon, for example, a small pilot tunnel is driven before the full diameter of the tunnel is excavated.
结合对某大厦边坡的加固设计，通过数值模拟稳定性分析和现场观测结果分析，对含有防空洞的岩石开挖边坡进行了较为全面的研究。
The overall study on rock cutting slope with air-raid shelter is presented based on the stabilization design of the slope including the numerical simulation analysis and field tests.
用强度折减有限元方法对开挖边坡的稳定性进行了较为全面的研究。
An elastoplastic shear strength reduction FEM is used to analyze the stability of excavation slope.
本文结合龙首水电站工程，较全面地研究了岩石开挖爆破的机理及生产试验的方法。
Combining Longshou Waterpower Station Project the mechanism of rock excavation explosion and production test method are studied more completely.
本文结合龙首水电站工程，较全面地研究了岩石开挖爆破的机理及生产试验的方法。
Combining Longshou Waterpower Station Project the mechanism of rock excavation explosion and production test method are studied more completely.
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