Author:
Yu Huaichang,Wang Jialiang,Cao Li,Bai Rui,Wang Peng
Abstract
Monte-Carlo random finite-difference analysis (MCRFDA) can incorporate the spatial variability of soil properties into the analysis of geotechnical structures. However, two factors, namely, the fineness of the generated elements (reflected by the number of elements,Ne) and the number of MC simulation iterations,NMC, considerably affect the computational efficiency of this method, creating a barrier to its broad use in real-world engineering problems. Hence, an MCRFDA model of a circular underground cavern is developed in this study. The convergent deformation of the cavern is analyzed while considering the spatial variability distribution of the elastic modulus. Moreover, the effects ofNMCandNeon random FD calculations are investigated. The results show the following. AnNMCgreater than 500 is desirable for the FD analysis of a conventional structure. For a specific structure,Nedoes not have a significant impact on the mean of the simulated values but appreciably affects the standard deviation (SD) of the simulated values, where reducingNeincreases the SD of the simulated values.
Subject
General Earth and Planetary Sciences
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献