Modeling of ground vibrations from a tunnel in layered unsaturated soil with spatial variability

• Autorzy: Di Honggui , Yu Jiayong , Guo Huiji , Zhou Shunhua , He Chao , Zhang Xiaohui

Identyfikatory

DOI

10.1007/s43452-021-00358-5

• Języki publikacji: EN

Abstrakty

EN

This paper presents a method for modeling the ground vibrations from a railway tunnel in layered unsaturated soil, considering the uncertainty and spatial variability of soil parameters. A deterministic ground vibration prediction model, which is an improved Euler beam model, is developed to evaluate the vibrations for a tunnel in layered unsaturated soil. Furthermore, the spatial variability of soil parameters is simulated by random fields using the Monte Carlo theory and the middle point method of Cholesky decomposition. By coupling the random fields of soil parameters to the deterministic vibration prediction model, the effect of uncertainty and spatial variability of soil on the ground vibrations is demonstrated through a case study. It is found that the variability of soil parameters has little influence on the spatial distribution regularities of ground vibrations, but it has a significant effect on the dynamic response amplitude and the critical velocity of the system.

Słowa kluczowe

EN

underground railway tunnel; ground vibration; unsaturated soil; soil parameter uncertainty

PL

tunel kolejowy; drgania gruntu; gleba

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2022
• Tom: Vol. 22, no. 1
• Strony: art. no. e33, 2022
• Opis fizyczny: Bibliogr. 32 poz., tab., wykr.

Twórcy

autor

Di Honggui

• Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China
• Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China

autor

Yu Jiayong

• Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China
• Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China

autor

Guo Huiji

• Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China
• Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China

autor

Zhou Shunhua

• Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China
• Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China

autor

He Chao

• Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China
• Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China

autor

Zhang Xiaohui

• Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China
• Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai 201804, China

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)