scholarly journals Jointed Surrounding Rock Mass Stability Analysis on an Underground Cavern in a Hydropower Station Based on the Extended Key Block Theory

Energies ◽  
2017 ◽  
Vol 10 (4) ◽  
pp. 563 ◽  
Author(s):  
Chao Jia ◽  
Yong Li ◽  
Mingyuan Lian ◽  
Xiaoyong Zhou
Keyword(s):  
Rock Mass ◽  
Stability Analysis ◽  
Surrounding Rock ◽  
Hydropower Station ◽  
Block Theory ◽  
Rock Mass Stability ◽  
Underground Cavern ◽  
Key Block

Stability analysis of underground surrounding rock mass based on block theory

2020 ◽  
Vol 27 (10) ◽  
pp. 3040-3052
Author(s):  
Jian-yun Lin ◽  
Yu-jun Zuo ◽  
Jian Wang ◽  
Lu-jing Zheng ◽  
Bin Chen ◽  
...  
Keyword(s):  
Rock Mass ◽  
Stability Analysis ◽  
Surrounding Rock ◽  
Block Theory

scholarly journals Impact of In Situ Stress Distribution Characteristics on Jointed Surrounding Rock Mass Stability of an Underground Cavern near a Hillslope Surface

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Bangxiang Li ◽  
Yong Li ◽  
Weishen Zhu ◽  
Chao Li ◽  
Zhenxing Dong
Keyword(s):  
Rock Mass ◽  
Stress Distribution ◽  
In Situ Stress ◽  
Surrounding Rock ◽  
Horizontal Distance ◽  
Distribution Characteristics ◽  
Slope Surface ◽  
Rock Mass Stability ◽  
Underground Cavern

In this paper, a series of numerical simulations are performed to analyze the in situ stress distribution characteristics of the rock mass near different slope angles hillslope surfaces, which are subjected to the vertical gravity stress and different horizontal lateral stresses and the influence which the in situ stress distribution characteristics of 45° hillslope to the integral stability of surrounding rock mass when an underground cavern is excavated considering three different horizontal distances from the underground cavern to the slope surface. It can be concluded from the numerical results that different slope angles and horizontal lateral stresses have a strong impact on the in situ stress distribution and the integral surrounding rock mass stability of the underground cavern when the horizontal distance from the underground cavern to the slope surface is approximately 100 m to 200 m. The relevant results would provide some important constructive suggestions to the engineering site selection and optimization of large-scale underground caverns in hydropower stations.

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