A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Collapsibility and seismic settlement of loess
AbstractLoess collapsibility and seismic settlement have proven to be costly geotechnical hazards in China. Since collapsibility assessment and mitigation are now conventional practices in Chinese design codes, some previous efforts have been made to relate collapsibility and seismic settlement in order to simplify assessment of the latter. However, these works have neglected mechanical difference between the two phenomena. In this study, the similarity and difference between collapsibility and seismic settlement of loess are analyzed, which shows that both are based on the metastable microstructure of loess, but their triggering mechanisms are different. Collapsibility is primarily driven by suction loss, whereas seismic settlement is caused by shear failure of the loess matrix during dynamic loading, though both of them result in collapse of trellis structure pores. Consequently, the lack of a common mechanism demonstrates there is no tenable physical basis to relate collapsibility and seismic settlement.
Collapsibility and seismic settlement of loess
AbstractLoess collapsibility and seismic settlement have proven to be costly geotechnical hazards in China. Since collapsibility assessment and mitigation are now conventional practices in Chinese design codes, some previous efforts have been made to relate collapsibility and seismic settlement in order to simplify assessment of the latter. However, these works have neglected mechanical difference between the two phenomena. In this study, the similarity and difference between collapsibility and seismic settlement of loess are analyzed, which shows that both are based on the metastable microstructure of loess, but their triggering mechanisms are different. Collapsibility is primarily driven by suction loss, whereas seismic settlement is caused by shear failure of the loess matrix during dynamic loading, though both of them result in collapse of trellis structure pores. Consequently, the lack of a common mechanism demonstrates there is no tenable physical basis to relate collapsibility and seismic settlement.
Collapsibility and seismic settlement of loess
Yuan, Z.X. (author) / Wang, L.M. (author)
Engineering Geology ; 105 ; 119-123
2008-12-03
5 pages
Article (Journal)
Electronic Resource
English
Collapsibility and seismic settlement of loess
| Online Contents | 2009
Collapsibility and seismic settlement of loess
| British Library Online Contents | 2009
Collapsibility of Egyptian loess soil
| British Library Conference Proceedings | 2000
Factors and Mechanism of Loess Collapsibility
| British Library Conference Proceedings | 1995
Loess foundation collapsibility sensitivity evaluation method
| European Patent Office | 2023