Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Stability Prediction of Surrounding Rock in Tunnel Crossing Fault Zone Based on Cusp Catastrophe Theory
https://orcid.org/https://orcid.org/0000-0003-0940-7440
To solve the practical engineering problem of cusp catastrophe theory in the prediction of surrounding rock stability. This paper establishes the cusp catastrophe equation in tunnel fault zones, according to the mechanical model of tunnel-fault systems and the control variable parameters of rock mass constitutive models. It reveals the mechanism of surrounding rock instability in tunnel-fault systems. It also forms a predictive criterion for surrounding rock instability. Additionally, a monitoring criterion for surrounding rock instability is developed, utilizing the deformation increment of surrounding rock as the state variable, based on monitoring data of surrounding rock deformation following tunnel digging. The feasibility of the two criteria in practical projects is examined, using the Pingtan and Minjiang River saliva resource allocation projects in Fujian Province, China as case studies. The results show that the predictive criterion can predict the deformation state of surrounding rock before tunnel excavation. Based on the criterion of monitor, The monitoring criterion the surrounding rock can be monitored in real time and it can be evaluated the stability after excavation. Based on the stability prediction results obtained by the predictive criteria, the surrounding rock with high risk is targeted to monitor, so as to improve the stability prediction accuracy of the tunnel through the fault zone.
Stability Prediction of Surrounding Rock in Tunnel Crossing Fault Zone Based on Cusp Catastrophe Theory
https://orcid.org/https://orcid.org/0000-0003-0940-7440
To solve the practical engineering problem of cusp catastrophe theory in the prediction of surrounding rock stability. This paper establishes the cusp catastrophe equation in tunnel fault zones, according to the mechanical model of tunnel-fault systems and the control variable parameters of rock mass constitutive models. It reveals the mechanism of surrounding rock instability in tunnel-fault systems. It also forms a predictive criterion for surrounding rock instability. Additionally, a monitoring criterion for surrounding rock instability is developed, utilizing the deformation increment of surrounding rock as the state variable, based on monitoring data of surrounding rock deformation following tunnel digging. The feasibility of the two criteria in practical projects is examined, using the Pingtan and Minjiang River saliva resource allocation projects in Fujian Province, China as case studies. The results show that the predictive criterion can predict the deformation state of surrounding rock before tunnel excavation. Based on the criterion of monitor, The monitoring criterion the surrounding rock can be monitored in real time and it can be evaluated the stability after excavation. Based on the stability prediction results obtained by the predictive criteria, the surrounding rock with high risk is targeted to monitor, so as to improve the stability prediction accuracy of the tunnel through the fault zone.
Stability Prediction of Surrounding Rock in Tunnel Crossing Fault Zone Based on Cusp Catastrophe Theory
https://orcid.org/https://orcid.org/0000-0003-0940-7440
To solve the practical engineering problem of cusp catastrophe theory in the prediction of surrounding rock stability. This paper establishes the cusp catastrophe equation in tunnel fault zones, according to the mechanical model of tunnel-fault systems and the control variable parameters of rock mass constitutive models. It reveals the mechanism of surrounding rock instability in tunnel-fault systems. It also forms a predictive criterion for surrounding rock instability. Additionally, a monitoring criterion for surrounding rock instability is developed, utilizing the deformation increment of surrounding rock as the state variable, based on monitoring data of surrounding rock deformation following tunnel digging. The feasibility of the two criteria in practical projects is examined, using the Pingtan and Minjiang River saliva resource allocation projects in Fujian Province, China as case studies. The results show that the predictive criterion can predict the deformation state of surrounding rock before tunnel excavation. Based on the criterion of monitor, The monitoring criterion the surrounding rock can be monitored in real time and it can be evaluated the stability after excavation. Based on the stability prediction results obtained by the predictive criteria, the surrounding rock with high risk is targeted to monitor, so as to improve the stability prediction accuracy of the tunnel through the fault zone.
Stability Prediction of Surrounding Rock in Tunnel Crossing Fault Zone Based on Cusp Catastrophe Theory
KSCE J Civ Eng
Liu, Guangjin (Autor:in) / Peng, Yaxiong (Autor:in) / Wu, Li (Autor:in) / Cheng, Yao (Autor:in) / Dong, Daojun (Autor:in) / Jia, Lin (Autor:in) / Zhu, Sheng (Autor:in)
KSCE Journal of Civil Engineering ; 28 ; 4146-4157
01.09.2024
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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