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茂县宗渠堰塞湖漫顶溃决洪水演进规律模型试验研究
Alternative TitleModel Experiment Study of Evolution ot Overtopping Outburst Flood for Zongqu Landslide Lake in Mao County
胡桂胜1,2,3; 陈宁生1,2; 邓明枫1,2,3; 邓虎4
2011
Source Publication水土保持研究
ISSN1005-3409
Volume7Issue:3Pages:172-176
SubtypeArticle
Contribution Rank1
Abstract5·12汶川大地震诱发了大量堰塞湖,这些堰塞湖一旦溃决,溃决洪水将对下游居民的生命财产造成很大的威胁,因此研究堰塞湖溃决洪水沿程水位变化规律对决策部门发布洪水预警,组织撤离与逃生,实施紧急救援等具有十分重要的意义。该文选取四川省茂县宗渠堰塞湖为原型进行野外模型试验,通过在堰塞湖库区及其下游建立一套高清晰DV摄影为主,辅以下游水位定点标记的模型试验方法,研究了堰塞湖库区水位变化过程,通过对时间差分推导出堰塞湖水量平衡方程,进一步得到溃口流量随时间变化规律;研究了下游水位变化过程揭示出堰塞湖漫顶溃决洪水的演进规律。溃口发展过程在纵向上主要以陡坎前进的方式推进,而横向上主要由土体坍滑失稳引起。此结果也可为今后堰塞湖的应急排险,溃决洪水的深入研究等具有参考价值。
Other AbstractLarge numbers of landslide lake are induced by the 5 · 12 Wenchuan earthquake.The outburst flood will be great threat to the lives and poverty downstream if these dammed lakes breach.Research for the vari able rule of outburst flood has great significance in dealing with releasing the warning and organizing the evacuation to decision-making departments.We do some model experiments to select the Zongqu dammed lake of Maoxian county as prototype model.We studied the variable rule of water level and revealed the variable rule of outburst flood by using high-definition photography cooperated with positioning a group of watermarks on reservoir area and downstream of landslide lake.We obtained the rule that the burst flow changes with time through uilibrium equation.During these processes,the breach in the longitudinal way develops in the means of heatcut erosion,while in the cross way through soil mass collapse.This result can be used as guidance for emergency risk-elimination of the dammed lake and the study of outburst flood.
Keyword宗渠堰塞湖 漫顶溃决 洪水演进 模型试验
Indexed ByCSCD
Language中文
CSCD IDCSCD:4221600
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26008
Collection山地灾害与地表过程重点实验室
Corresponding Author胡桂胜
Affiliation1.中国科学院水利部成都山地灾害与环境研究所;
2.中国科学院研究生院;
3.中国科学院山地灾害与地表过程重点实验室;
4.成都理工大学
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
胡桂胜,陈宁生,邓明枫,等. 茂县宗渠堰塞湖漫顶溃决洪水演进规律模型试验研究[J]. 水土保持研究,2011,7(3):172-176.
APA 胡桂胜,陈宁生,邓明枫,&邓虎.(2011).茂县宗渠堰塞湖漫顶溃决洪水演进规律模型试验研究.水土保持研究,7(3),172-176.
MLA 胡桂胜,et al."茂县宗渠堰塞湖漫顶溃决洪水演进规律模型试验研究".水土保持研究 7.3(2011):172-176.
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