E3S Web Conf.
Volume 165, 20202020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|Number of page(s)||5|
|Section||Geology, Mapping, and Remote Sensing|
|Published online||01 May 2020|
Research on the Layered Rock Mass Excavation Relaxation Stability of Underground Caverns
1 Northwest Engineering Corporation Limited, Power China, Xi’an, Shanxi, 710065, China
2 High Slope and Geological Hazard Research & Management branch, National Energy and Hydropower Engineering Technology R Center, Xi’an, Shanxi, 710065, China
* Corresponding author: firstname.lastname@example.org
In order to compare the influence of rock mass parameters weakening on the deformation and stability of excavation caverns in layered rock mass, based on power generation system caverns of a hydropower station, the stability and deformation of the caverns is analyzed. The results show that the mechanical characteristics of the structure surface play a major role in controlling the stability of caverns. And the displacement and yield zone value of plan 3, which adopt elastic-plastic softening model, are significantly larger than other two. The method which consider the residual strength of structure surface is more suitable for the excavation calculation of layered rock mass cavern.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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