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您的检索式：作者名="Di Honggui"
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| 1 | Effects of soil spatial variability on structural reliability assessment in excavations显示文摘In this study,the effects of soil spatial variability in braced excavations are investigated by focusing on three structural responses:wall bending moments,wall shear forces,and strut forces.The soil spatial variability is modeled using random field theory,and the generated soil parameters are mapped onto a finite element model.A procedure for automating the Monte Carlo simulation,which is used for probabilistic analysis,is described.A case study demonstrates that the soil spatial variability has a considerable effect on the excavation-induced structural responses.Furthermore,a reliability analysis is performed to estimate the failure probability for three structural failure modes.The results demonstrate the importance of considering soil spatial variability in the structural assessment of braced excavati ons. | Zhe Luo Honggui Di Mehrad Kamalzare Yixiang Li | 2020 | Underground Space2020，5，1： | 1 |
| 2 | An analytical model for evaluating the dynamic response of a tunnel embedded in layered foundation soil with different saturations显示文摘This paper proposes an analytical model for evaluating the dynamic response of an underground railway tunnel in layered foundation soil with different saturations.The soil is modeled as layered media,and the circular tunnel lining is modeled as an infinite Flügge cylindrical shell.The separation of variables method is used to solve the motion equation of the shell,and the wave equation of the soil is solved using the Helmholtz decomposition theorem.A dynamic matrix reflecting the wave vectors of soil layers is established using the transfer matrix method.Based on boundary conditions,the tunnel-soil model is coupled using the transformation method of plane wave functions and cylindrical wave functions.The proposed model is validated by comparison with existing tunnel models,and the effects of saturation and the layered properties of soil on the dynamic response of a layered tunnel-soil system is demonstrated via case studies. | Di Honggui Guo Huiji Zhou Shunhua Wang Binglong He Chao Zhang Xiaohui | 2022 | Earthquake Engineering and Engineering Vibration2022，21，3： | 1 |
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