软硬相间岩层中地下厂房稳定性分析

Stability analysis of a underground powerhouse in the alternatively distributed soft and hard rock layers

对软硬相间岩层中地下厂房进行稳定性分析,既要考虑岩石的软弱性质,又要考虑岩石的脆性。本文分别采用弹塑脆性理论和弹塑性理论对某地下厂房进行稳定性分析,结果表明对于软硬相间岩层中地下厂房的稳定性分析,如果仅考虑其弹塑性性质,其结果是偏危险的。

This paper revealed that rock mass with alternatively distributed soft and hard rock layers is not only of elastic-plastic characteristics,but also of brittle characteristics.So the elastic-plastic-brittle theory should be used in the stability calculation of the underground powerhouse that is in the rock mass with alternatively distributed soft and hard layers.Stability of a underground powerhouse was analyzed respectively with elastic-plastic-brittle theory and elastic-plastic theory.The results show that it is unsafe only to use elastic-plastic theory for the stability analysis of the underground powerhouse.