Physical vulnerability assessment of damaged buildings to the Shenzhen catastrophic CSW landslide
Citation
Zhang, S., Li, C., Peng, J., Wang, S., Chen, W., Wang, Q., Ma, P. (2024). Physical vulnerability assessment of damaged buildings to the Shenzhen catastrophic CSW landslide. Landslides, 21: 1023-1039. Link to paper
Abstract
A catastrophic construction solid waste (CSW) landslide occurred in Shenzhen, China, in December 2015, directly destroying 75 buildings along the travel path. This study uses statistical fundamental information of the damaged buildings and the reproduced motion process of the landslide using numerical modeling, with both simulation-based progressive destruction process characterization and statistical-based analyses of the relationships between intensity data and vulnerability indexes. A typical vertical continuous collapse model due to the bending failure of the bottom column and the upward extension of the plastic hinge area is observed in the established single-frame structure under a set of impact pressure data. Results indicate that flow velocity and impact pressure indicators are more appropriate for quantifying the vulnerability of buildings exposed to high-mobility CSW landslides.