摘要
由于工程需要,常常在岩体中开挖各种洞室,这些原处于不连续状态的由空间断裂块体组成的天然岩体伴随着岩体洞室的开挖,相应产生整体或部分块体的移动,出现不稳定甚至破坏效应。而文章所提及的块体理论是近几十年来发展和完善起来的用于解决非连续块状岩体岩石工程的重要方法之一,得到了广泛的运用和验证。文章通过简单算例分析快体理论应用于实际的原理和运算过程,并同时利用UNWEDGE程序计算进行比较、分析,寻找出不稳定块体,给工程实践提供参考,以保证工程安全性。
Because of the needs in rock engineering, various kinds of caverns are excavated in natural rock mass. With the excavation, the whole or parts of blocks in these rock mass which originally exists discontinuity and consists of spaeial jointed blocks will slide, then, the instability or even failure will take place. The Block Theory introduced in this paper is developed in recent ten years, it is an effective and reliable method for discontinuously jointed rock mass stability analysis,which also have been applied and confirmed widely. Through a simple example the stability of a cave in rock mass is analyzed with Block Theory, and then the procedure UNWEDGE is also used for comparison and analysis. So the Block Theory can be applied for determining the movable blocks, which is helpful for rock engineering and ensures the security in engineering.
出处
《地下空间与工程学报》
CSCD
2006年第B08期1408-1412,共5页
Chinese Journal of Underground Space and Engineering
基金
国家自然科学基金委员会
二滩水电开发有限公司雅砻江水电开发联合研究基金项目(50539090)
国家自然科学基金项目(NO.50479021)。
关键词
岩体
洞室
围岩
块体理论
块体稳定性
rock mass
cavern
surrounding rock mass
block theory
block stahility
