Investigation of Lushan Earthquake Disasters and Analysis of Related Problems during Post-Quake Reconstruction in Sichuan
详细信息
- 责任者：Xie Heping (State Key Laboratory of Hydraulics and Mountain River Engineering ; Sichuan University ; Chengdu 610065 ; China) ; Deng Jianhui
- 刊名：Journal of Earth Sciences and Environment
- 出版年：2013
- 卷期：35(2)
- 关键词：震灾 ; seismic hazard ; 四川 ; Sichuan Province
- 页码：p.1-7
- 图表：illus., 11 refs.
- 分类号：1800
- issnNo：ISSN1672-6561
- isbnNo：CN61-1423/P
摘要
In April 20,2013,a strong earthquake measured Ms7.0 hitted Lushan county,Sichuan province,which was induced by Longmenshan front fault,i.e.Dachuan-Shuangshi fault.It was the second large earthquake occurred along Longmenshan fault zone since Wenchuan earthquake in 2008.From April 25on,the authors made three field visits to the quake-hit area.The disasters were summarized,and the potential problems during post-quake reconstruction were discussed.The results showed that compared with Wenchuan earthquake,the quake-induced disasters were lighter;no obvious surface ruptures were ever witnessed along the quake-inducing fault;both landslide and rockfall happened in small scale,so no large barrier lake was ever formed;landslide distributed along the seismogenic fault,and the rock types were Xujiahe Formation of Upper Triassic;rockfall appeared mainly in the gorge segment of rivers,and the rock types were mainly conglomerate and secondly intrusive rock;severe building damages were mainly brick-wood structured residential housings or brick-concrete-structured ones without constructional columns or ring beams;the major geohazard problems during post-quake reconstruction were rockfalls along major roads and debris flow in Baxing county town.
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