roof of karst cave 溶洞顶板
The safety factor of karst cave roof is defined as the ratio of actual shear strength parameter to critical failure shear strength parameter 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。
The major factors affecting the stability of cave roof under pile in karst region are deeply analyzed.
对影响溶洞顶板稳定性的各种主要因素进行了深入分析。
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