A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of Near-Fault Ground Motions on a Large Underground Rock Cavern: A Case Study
In the present paper, the effects of controlling geological discontinuity on seismic stability of underground caverns subjected to near-fault ground motions are studied. Based on a nonlinear continuously yielding joint model, the mechanism of the impact of the near-fault ground motions on unfavorable geological structure is analyzed with ground motion records collected from NGA-West2 database. Then, the PGV is proposed as the damage potential index (DPI) of unfavorable geological structure. Finally, the 1# surge chamber of Baihetan hydropower project is studied. The results demonstrate the cavern is apparently fragile under the near-fault ground motion; thus, some special seismic reinforcement measures should be carried out.
Effects of Near-Fault Ground Motions on a Large Underground Rock Cavern: A Case Study
In the present paper, the effects of controlling geological discontinuity on seismic stability of underground caverns subjected to near-fault ground motions are studied. Based on a nonlinear continuously yielding joint model, the mechanism of the impact of the near-fault ground motions on unfavorable geological structure is analyzed with ground motion records collected from NGA-West2 database. Then, the PGV is proposed as the damage potential index (DPI) of unfavorable geological structure. Finally, the 1# surge chamber of Baihetan hydropower project is studied. The results demonstrate the cavern is apparently fragile under the near-fault ground motion; thus, some special seismic reinforcement measures should be carried out.
Effects of Near-Fault Ground Motions on a Large Underground Rock Cavern: A Case Study
Cui, Zhen (author) / Sheng, Qian (author)
Seventh China-Japan-US Trilateral Symposium on Lifeline Earthquake Engineering ; 2016 ; Shanghai, China
2017-08-10
Conference paper
Electronic Resource
English
Rock Behavior of Large Underground Cavern During Excavation
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Behavior of discontinuous rock during large underground cavern excavation
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