块体理论在某地下洞库围岩稳定性分析中的应用

Application of Block Theory in Stability Analysis of Surrounding Rock of an Underground Cavern

稳定性分析是岩体工程研究的核心问题,块体理论是常用的岩体工程稳定性分析方法之一。本文依托某地下水封洞库工程实例,通过对储油洞室围岩发育的各组节理进行地质素描,再利用Unwedge程序进行分析计算,进行关键块体的搜索计算并判断其稳定性,进而为施工支护提供依据,为地下洞室的块体稳定性分析提供了一种准确快捷的途径。

Stability analysis is the core issue of rock mass engineering research, and block theory is one of the commonly used analysis methods of rock mass engineering stability. Based on an example of an underground water-sealed cavern project, this paper conducts a geological sketch of each group of joints developed in the surrounding rock of the oil storage cavern, and then uses the Unwedge program to search for key blocks, and judges their stability. The construction support provides a basis, and provides an accurate and quick way for the block stability analysis of underground caverns.