[1]邓睿,崔建宏,来庆勇,等.花红树沟泥石流灾害特征及堰塞区工程地质问题分析[J].高速铁路技术,2023,14(06):26-31.[doi:10.12098/j.issn.1674-8247.2023.06.005]
　DENG Rui,CUI Jianhong,LAI Qingyong,et al.Analysis on the Characteristics of Debris Flow Disaster and the Geological Problems of the Dammed Area in Huahongshu Gully[J].HIGH SPEED RAILWAY TECHNOLOGY,2023,14(06):26-31.[doi:10.12098/j.issn.1674-8247.2023.06.005]
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花红树沟泥石流灾害特征及堰塞区工程地质问题分析()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
14卷
期数:
2023年06期
页码:
26-31
栏目:
理论探索
出版日期:
2023-12-30

文章信息/Info

Title:
Analysis on the Characteristics of Debris Flow Disaster and the Geological Problems of the Dammed Area in Huahongshu Gully
文章编号:
1674-8247（2023）06-0026-06
作者:
邓睿1; 2; 崔建宏2; 来庆勇2; 唐鸥玲2; 刘瑞芳3
1.成都理工大学，成都610059;2.中铁二院工程集团有限责任公司，成都610031;3.国家铁路局安全技术中心，北京100160
Author(s):
DENG Rui1; 2; CUI Jianhong2; LAI Qingyong2; TANG Ouling2; LIU Ruifang3
1.Chengdu University of Technology ， Chengdu 610059 ，China;2.China Railway Eryuan Engineering Group Co. ，Ltd. ，Chengdu 610031 ，China;3.Safety Technology Center, National Railway Administration of the People’s Republic of China, Beijing 100160, China
关键词:
泥石流; 灾害特征; 危害评价; 堰塞沉积; 砂土液化
Keywords:
debris flow; disaster characteristics; hazard assessment; dammed sediment deposition; sand liquefaction
分类号:
TU45
DOI:
10.12098/j.issn.1674-8247.2023.06.005
文献标志码:
A
摘要:
汶川地震后泥石流长期频发，局部形成堰塞湖灾害，极大危害了当地人民生命财产及工程建设安全。本文以地震强烈影响区花红树沟泥石流为研究对象，通过遥感解译、现场调查、钻探、原位测试及室内试验等勘察方法，综合分析了泥石流孕灾环境及发育特征。在动力学计算的基础上对新发泥石流堵河危害进行了评价，并对其形成的堰塞沉积场地工程地质问题进行了分析。研究表明：花红树沟为中等易发、中型规模黏性泥石流冲沟，沟内动储量物源约16×104m3，最大淤积高度约2.82m，最大堵河范围约10m；该泥石流堰塞场地范围较大，主要工程地质问题为砂土液化。研究结果可为确保该区域居民安全及工程建设提供科学参考依据。
Abstract:
After the Wenchuan earthquake，the frequency of debris flows increased for a long time，resulting in the formation of local dammed lake disasters，posing great threats to lives and properties of the locals，and to construction safety. Focusing on the debris flow of Huahongshu Gully，which was strongly affected by the earthquake，the paper comprehensively analyzed the hazardous environment and development characteristics of debris flow through remote sensing interpretation，field surveys，drilling，in-situ testing，and laboratory tests. Based on dynamic calculations，the new damming hazard of debris flow was evaluated，and the geological problems of the dammed sediment deposit site were analyzed. The findings indicate that Huahongshu Gully is a moderately prone，mid-sized viscous debris flow gully，with a dynamic stock volume of about 16×104 m3，a maximum deposition height of about 2. 82 m，and a maximum damming range of about 10 m. The debris flow dammed site covers a large area，and the main geological problem is the liquefaction of sandy soil. The results of the study can provide a scientific reference basis for the safety of residents and construction activities in the area.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2023-03-17
作者简介：邓睿（1983-），男，高级工程师。
更新日期/Last Update: 2023-12-30