Evaluation of stress state in rock mass surrounding underground structures of waterworks

Challenges for Development in Mining Science and Mining Industry

Gakhova, L.N.^1

Chinakal Institute of Mining, Siberian Branch Russian, Academy of Sciences, Novosibirsk, Russia^1

关键词: Inelastic strain;    Level structure;    Regular patterns;    Rock mass;    Stress state;    Underground construction;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/262/1/012017/pdf
DOI  :  10.1088/1755-1315/262/1/012017

来源: IOP

【 摘 要 】

Using the data of the numerical modeling of stress state in rock mass surrounding deep-level structures of waterworks, the author finds regular patterns and specific features of stress distribution under stage-wise underground construction. It is shown in the paper that as cross-section of an underground structure is enlarged, inelastic strain zones arise nearby the structures, and parameters of these zones are determined.