Dynamic Response of Underground Structure Subjected to Collapse-touchdown Impact Loading

5th Annual International Workshop on Materials Science and Engineering

Ji, Shan^1 ; Xie, Weiping^1 ; Zhao, Jielin^1 ; Wang, Guobo^2

School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan

430070, China^1

Hubei Key Laboratory of Roadway Bridge and Structure Engineer, Wuhan University of Technology, Wuhan, Hubei

430070, China^2

关键词: Field test;    Impact loadings;    Small pipes;    Underground pipeline;    Vibration response;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012081/pdf
DOI  :  10.1088/1757-899X/585/1/012081

来源: IOP

【 摘 要 】

As the urbanization and urban planning in China make progress, many buildings are facing demolition. These buildings to be demolished are often located close to various underground structures built in many cities. Therefore, the impact loading due to the touchdown of these buildings will inevitably affect the underground structures. In this paper, field tests were used to analyze the response of underground structure subjected to the impact loading due to the collapse touchdown of superstructure. The dynamic response of underground pipeline to the collapse of a single-span viaduct was analyzed. The results showed that the vibration responses of both the soil and structure are mainly vertical, which generally attenuate rapidly with the distance away from the collapse touchdown area, and also the impact effect has little influence on small pipes.