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摘要
In the disaster areas of Wenchuan Earthquake, anti-dip slope is a kind of slope with less development of earthquake-induced mountain disasters, but the excavation often exacerbates the eakthquake-induced mountain disasters on slopes. According to the survey, deformation and failure of anti-dip slope is characterized by both collapse and slide. In order to reproduce the deformation and failure process of slope, the deformation and failure laws of slope under seismic loading were analyzed. The slope, where Wangjiaping landslide was located in Longmenshan Town, Pengzhou City was selected as a typical example of anti-dip slope with excavation failure in this study and indoor physical model tests were carried out on deformation and failure under seismic loading. The results showed that the deformation and failure of slope under seismic loading were exacerbated by excavation. As viewed from failure mode, the deformation and failure of anti-dip slope were characterized by both collapse and slide, consistent with the results of field surveys. The entire process of deformation and failure could be divided into the following phases: the initial stage of earthquake (a gradual connecting process between superficial overburden and bedrock interface), excavated excavation stage.
- 出版日期2012-4
- 单位中国科学院、水利部成都山地灾害与环境研究所; 昆明理工大学
