本文着重于岩体中洞室超挖-不稳定楔形体的预测.This article emphasizes a prediction of overbreak, the unstable wedge , for openings jointed rock mass.分析了超挖回填层和不同回填材料对复合衬砌模型结构承载力的影响.提出的结论可供隧道设计、工参考.Presented conclusion may be used for reference ...

“超挖”的英语可以翻译为：ackbreak，overbreak，overexcavation ...