Study on the correlation between load and resistance variables in the probabilistic limit state design method of tunnels

Shufen LIU; Fan FENG; Jianyou LIU; Chiyu QIAN

doi:10.13928/j.cnki.wrahe.2025.S2.069

Water Resources and Hydropower Engineering ›› 2025, Vol. 56 ›› Issue (S2) :414 -418. DOI: 10.13928/j.cnki.wrahe.2025.S2.069

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Study on the correlation between load and resistance variables in the probabilistic limit state design method of tunnels

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Abstract

The effect of load(S) and the resistance of the structure(R) in the probabilistic limit state design method are two independent variables, which are for the water coming from the buildings such as industrial and civil buildings, bridges, etc., to meet the requirements that the load and the structural bearing capacity are independent of each other, but for the tunnel and underground engineering, they do not meet the conditions that are independent of each other, the surrounding rock load of the tunnel is closely related to the resistance of the structure, and the load increases with the increase of the resistance of the structure, therefore, it is necessary to follow the correlation between the load and the resistance. Modify the probability function of the limit state design method.

Keywords

tunnel / loads / resistance / probability / ultimate limit state design method

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Shufen LIU, Fan FENG, Jianyou LIU, Chiyu QIAN. Study on the correlation between load and resistance variables in the probabilistic limit state design method of tunnels. Water Resources and Hydropower Engineering, 2025, 56(S2): 414-418 DOI:10.13928/j.cnki.wrahe.2025.S2.069