[1]JIA Zhaoliang,ZHENG Chuan,WU Yanmei,et al.Risk Assessment the Hazard-bearing Bodies by the Earthquake-induced Landslides Based on the Newmark Model:A Case Study of the 2014 Ludian,Yunnan MS6.5 Earthquake[J].Journal of Seismological Research,2023,46(03):366-375.[doi:10.20015/j.cnki.ISSN1000-0666.2023.0043
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Risk Assessment the Hazard-bearing Bodies by the Earthquake-induced Landslides Based on the Newmark Model:A Case Study of the 2014 Ludian,Yunnan MS6.5 Earthquake
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
46
Number of periods:
2023 03
Page number:
366-375
Column:
Public date:
2023-06-25
- Title:
- Risk Assessment the Hazard-bearing Bodies by the Earthquake-induced Landslides Based on the Newmark Model:A Case Study of the 2014 Ludian,Yunnan MS6.5 Earthquake
- Keywords:
- the Newmark model; earthquake-induced landslide; hazard-bearing body; risk assessment; the Ludian earthquake
- CLC:
- R315.94
- DOI:
- 10.20015/j.cnki.ISSN1000-0666.2023.0043
- Abstract:
- Using geological and topographic data of Zhaotong city,the critical acceleration of the slope is calculated based on the Newmark model,and the risk of earthquake-induced landslides in this region is analyzed.Based on the statistical model of the sliding distance of the landslides,a simplified forecasting method for the area affected by the earthquake-induced landslides is established.Using the data of buildings,population,roads and simulated peak ground acceleration of the 2014 Ludian MS6.5 earthquake,the risk assessment of the hazard-bearing bodies induced by the earthquake landslides is carried out.The results show that the high-prone places of the earthquake-induced landslides in Zhaotong city are mainly distributed in the steep slope area on both sides of the river and the concentrated area of the soft strata of the rock.And the distribution of high-prone areas is mainly controlled by slope and lithology.Victims of geological disasters in the Ludian earthquake event were in towns and villages where lots of buildings and large population are threatened by earthquake landslides.The high-risk roads evaluated are consistent with the actual situation in Zhaotong city.The assessment results can display the risk distribution of the disaster-bearing body on the regional scale.
- References:
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Last Update:
2023-06-25