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本文通过实际工程的大量调查,分析了隧洞压力拱形态和压力拱内岩体裂隙的分布类型及岩体的受力状态,针对岩石牢固系数在实际应用中的问题,提出了用岩体抗拉强度来分析隧洞围岩稳定性的观点,给出了牢固系数和岩体抗拉强度计算分析结果的对照表,可供隧洞稳定分析时参考。
In this paper, a large number of actual engineering survey, analysis of the tunnel arch pressure and arch arch rock mass fissure distribution and stress state, in view of the rock solid coefficient in the practical application of the problem, put forward the use of rock tensile Strength to analyze the stability of the surrounding rock tunnel point of view, given the solid coefficient and rock tensile strength calculation and analysis of the results of the table for the stability analysis of the tunnel reference.