Application of Block Theory in Stability Analysis of Surrounding Rock of an Underground Cavern

2021 ◽  
Vol 43 (01) ◽  
pp. 36-41
Author(s):  
大宝 徐
Keyword(s):  
Stability Analysis ◽  
Surrounding Rock ◽  
Block Theory ◽  
Underground Cavern

scholarly journals Dynamic Monitoring and Stability Analysis of Rock-bolted Crane Girder In large Cavern With Layered Surrounding Rock

2020 ◽  
Vol 165 ◽  
pp. 03025
Author(s):  
Jing Liu ◽  
Xiaomin Liu ◽  
Shengjie Di ◽  
Xi Lu
Keyword(s):  
Stability Analysis ◽  
Stability Condition ◽  
Stress Condition ◽  
Surrounding Rock ◽  
Monitoring Data ◽  
Dynamic Monitoring ◽  
Power Station ◽  
Load Bearing ◽  
Underground Cavern ◽  
Normal Law

The large and medium-sized hydropower projects underground cavern group are basically in relatively integrate surrounding rock, so there are few engineering examples in layered surrounding rock with type III surrounding rocks as the main rock, and lack of successful experience. According to rock-bolted crane girder under the layered surrounding rock of a large underground power station, analyzing prototype dynamic monitoring data of the excavation, unloading and load-bearing test .The distribution of the monitoring data conforms to the normal law, and there are no large outliers, under the action of a large number of bolts, rock-bolted crane girder basically forms a good integrity with the layered surrounding rock, and the load-bearing test has no effect on the stress condition and stability condition of surrounding rock.

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

Stability Analysis of Surrounding Rock with Two Groups Parallel Joints Using DDARF Method

2014 ◽  
Vol 919-921 ◽  
pp. 735-739
Author(s):  
Hai Ping Ma ◽  
Li Ge Wang ◽  
Xue Wei Li
Keyword(s):  
Stability Analysis ◽  
Uniaxial Compression ◽  
Surrounding Rock ◽  
Discontinuous Deformation Analysis ◽  
Deformation Analysis ◽  
Compression Tests ◽  
Underground Cavern ◽  
Excavation Process ◽  
Discontinuous Deformation ◽  
The Stability

In order to analyze the stability of surrounding rocks with two groups parallel joints under different angles, a new method, DDARF (discontinuous deformation analysis for rock failure) program was adopted to investigate three cases of uniaxial compression tests of two groups parallel joints sample with the angels 30, 45 and 60. The results show the sample with 30 is least prone to be destroyed and the sample with 60 are most likely to be destroyed. Then DDARF program was also applied to investigate the underground cavern excavation process of two groups parallel joints surrounding rocks with the angels 30, 45 and 60. The results show that the stability of underground cavern with joint angel of 60 is worst in the aspect of stability.

Rock bridge fracture model and stability analysis of surrounding rock in underground cavern group

2015 ◽  
Vol 53 (3) ◽  
pp. 481-495 ◽  
Author(s):  
Song Yu ◽  
Wei-Shen Zhu ◽  
Wei-Min Yang ◽  
Dun-Fu Zhang ◽  
Qing-Song Ma
Keyword(s):  
Stability Analysis ◽  
Surrounding Rock ◽  
Fracture Model ◽  
Rock Bridge ◽  
Underground Cavern
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