中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
地震灾区新建蒲虹公路弃土泥石流成灾特征与防治建议

文献类型:期刊论文

作者陈宁生
刊名地质灾害与环境保护
出版日期2010
卷号21期号:2页码:7-10
关键词泥石流 弃土 工程治理 公路
其他题名CHARACTERISTICS AND PREVENTION STRATEGY OF SPOIL DEBRIS FLOW ALONG NEWLY-BUILT PUYANG-HONGKOU HIGHWAY IN EARTHQUAKE-STRICKEN AREA
通讯作者崔纯纯
合作状况国内
中文摘要蒲虹公路是地震灾区的一条灾后新建公路。公路外边坡堆放有大量的弃土,在强降雨的作用下易转化为泥石流。此类现象受到研究者的关注。本文通过对弃土场的分布、组成及成灾特征的研究,提出了科学合理的处理方法。弃土泥石流形成模式包括:(1)沟道内弃土场在沟道洪水侵蚀作用下产生泥石流或土体溜滑形成泥石流;(2)坡面上弃土场滑动,表面液化形成局部坡面泥石流;(3)沟道两侧弃土场的基脚被侵蚀,形成滑坡堵河后溃决形成泥石流。弃土泥石流的成灾特征主要为弃土泥石流翻越挡墙或摧毁挡墙,堵塞涵洞或排水口,淤埋公路,威胁居民点等,它的处置需要特别注意排水,并平整压实,恢复生态。
英文摘要Debris flows induced by the Wenchuan Earthquake greatly affect the reconstruction in earthquake-stricken area.Puyang-Hongkou highway is one newly-built in the earthquake-stricken area.A lot of discarding soil is piled up on the slope,which may be transferred into debris flow under heavy rains.This phenomenon and hazards are very attractive for researchers.In this paper,the distribution of the sites of discarding soil,the formation and hazards characteristics and control measures are studied.In conclusion,the debris flows are triggered by 3 types of model:(1) the discarded soil in the gullies is triggered by flood or liquefied into debris flows;(2) The discarded soil landslides and the soil on surface liquefied partially into debris flow;(3) the foot of discarded soil at both sides of gullies is eroded and the soil collapses to block,and then bursts to form debris flows.The hazards appear to be turning over or destroy the wall,blocking the culvert,covering the road and endangering the residents.When settling down this problem,it is important to drain,flat the surface and plant trees. 
学科主题灾害学
分类号P642.23
资助信息中国科学院知识创新工程重要方向项目(KZCX2-YW-332),中国科学院西部之光联合学者资助项目
语种中文
公开日期2012-03-29
源URL[http://192.168.143.20:8080/handle/131551/3864]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
推荐引用方式
GB/T 7714
陈宁生. 地震灾区新建蒲虹公路弃土泥石流成灾特征与防治建议[J]. 地质灾害与环境保护,2010,21(2):7-10.
APA 陈宁生.(2010).地震灾区新建蒲虹公路弃土泥石流成灾特征与防治建议.地质灾害与环境保护,21(2),7-10.
MLA 陈宁生."地震灾区新建蒲虹公路弃土泥石流成灾特征与防治建议".地质灾害与环境保护 21.2(2010):7-10.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。