【摘要】 收敛约束原理是解释围岩和支护相互动态作用过程的一种理论和方法。根据施工监测的位移数据 ,应用该原理判别隧道稳定性 ,其关键在于稳定性判据即极限位移值的确定。得出的极限位移计算结果已被铁路隧道相关规范采纳。更多还原

【Abstract】 Convergence confinement principle is a theory and a method to explain the process of dynamic interaction between the surrounding rock and the support in a tunnel. The stability of a tunnel can be judged using the principle according to the displacement data measured during tunnel construction,the key to which lies in the basis for judgment of stability,i.e.,the determination of the limit value of displacement.更多还原