The safety factor of karst cave roof is defined as the ratio of actual shear strengthparameter to critical failure shear strengthparameter in this paper.
定义溶洞顶板稳定性安全系数为顶板岩体实际剪切强度与折减到临界破坏时的剪切强度之比值。
3
In the paper we use the shear strengthparameter of triaxial compression test under the starting water content to correct the direct shear strengthparameter.