IMHE OpenIR  > 山地灾害与地表过程重点实验室
岩体裂隙开挖卸荷扩展机理研究
张正波; 王东坡; 何思明
Corresponding Author何思明
2012-04
Source Publication西藏科技
Issue4Pages:59-63
Other Abstract岩体开挖卸荷作用导致岩体应力重分布,使得处于压剪状态的岩体内部原生裂隙失稳扩展,发生卸荷损伤。文章以岩体断裂力学为基础,考虑岩体开挖卸荷作用三种基本模式:(1)围压卸荷作用;(2)大主应力与围岩同时卸荷作用;(3)主应力方向旋转卸荷作用。采用岩体压—剪断裂理论研究这三种卸荷模式下岩体裂隙扩展的条件,阐述了岩体裂隙开挖卸荷扩展机理。最后,通过具体算例验证了本文方法的合理性,进一步得到三种典型开挖卸荷模式下岩体裂隙的启裂条件。 
Keyword岩体断裂力学 裂纹 开挖卸荷 失稳扩展
Indexed By其他
Language中文
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6737
Collection山地灾害与地表过程重点实验室
Recommended Citation
GB/T 7714
张正波,王东坡,何思明. 岩体裂隙开挖卸荷扩展机理研究[J]. 西藏科技,2012(4):59-63.
APA 张正波,王东坡,&何思明.(2012).岩体裂隙开挖卸荷扩展机理研究.西藏科技(4),59-63.
MLA 张正波,et al."岩体裂隙开挖卸荷扩展机理研究".西藏科技 .4(2012):59-63.
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