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藏东南典型冰湖溃决危险性分析
Alternative TitleAnalysis on Risk of Glacier-Lake Outburst in Southeastern Tibet
刘建康1,2,3; 程尊兰2,3; 郭芬芬2,3; 徐伟2,3
2011
Source Publication灾害学
ISSN1000-811X
Volume7Issue:3Pages:45-50
SubtypeArticle
Contribution Rank1
Abstract自川藏公路南线(西藏境内)修建通车以来,因受到泥石流、滑坡崩塌等自然灾害的影响而经常出现交通被迫中断的现象。其中,冰湖溃决泥石流由于其突发性强、洪峰高、流量大、破坏性强、持续时间短、范围广等特点,已成为藏东南地区危害程度最为严重的特殊灾种。通过对错下湖区域水文气候、冰川活动以及地震等要素的分析,初步认为该冰湖存在可能溃决的危险;通过终碛堤1/3和1/2溃决模式进行计算,得到溃决洪峰流量分别为2 236 m~3/s和3 697 m~3/s。错下湖一旦溃决,洪水汇入帕隆臧布江时将淹没以至冲毁沟口段公路、桥梁等基础设施,同时,主河还将面临泥石流堵江的危险。
Other AbstractSince construction and opening to traffic,traffic interruptions occur often along the southern line of Sichuan-Tibet highway(in Tibet)due to hazards like debris flow and landslides.Debris flows caused by glacier-lake outburst have become the most serious disasters with the characteristics of unexpected occurrence,high flood peak,great discharge,destructive,short time duration and broad range.Based on analysis on important factors as hydrological climate,glacier movement and earthquake records,etc.in Cuoxiahu area,the glacier-lake is preliminarily proved to be in danger of outburst.Outburst peak flows are obtained respectively as 2 236m~3/s and 3 697m~3/s by calculation in the mode of 1/3 and 1/2 dam break.Once the outburst of the lake happen,infrastructure such as roads,bridges along the Parlung Tsangpo River would be washed off,even worse,the main river also faces the danger of being blocked by debris flows.
Keyword冰湖溃决洪水 泥石流 地震 灾害评估 错下湖 藏东南
Indexed ByCSCD
Language中文
CSCD IDCSCD:4288398
Citation statistics
Cited Times:5[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26033
Collection山地灾害与地表过程重点实验室
Corresponding Author刘建康
Affiliation1.中国科学院地表过程与动力学重点实验室;
2.中国科学院成都山地灾害与环境研究所;
3.中国科学院研究生院
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
刘建康,程尊兰,郭芬芬,等. 藏东南典型冰湖溃决危险性分析[J]. 灾害学,2011,7(3):45-50.
APA 刘建康,程尊兰,郭芬芬,&徐伟.(2011).藏东南典型冰湖溃决危险性分析.灾害学,7(3),45-50.
MLA 刘建康,et al."藏东南典型冰湖溃决危险性分析".灾害学 7.3(2011):45-50.
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