水利水电技术2017，Vol.48Issue(9)：148-154,7.DOI:10.13928/j.cnki.wrahe.2017.09.023
基于FREAD溃坝体系的堰塞湖溃决过程反演分析
FREAD's dam-break system-based backanalysis on failure process of landslide dam
摘要
Abstract
In order to propose a method suitable for the simulation of failure of landslide dam,the DWOPER,DAMBRK,BREACH and FLDWAV models in FREAD's dam-break flood analysis system are systematically sorted out for summarizing the basic principles,adaptable conditions,merits and defects of all of them.Based on the function characteristics of all the models,a back analysis is made on the failure process of Sunkoshi Landslide Dam with the joint-utilization of both BREACH model for dam-break and FLDWAV model for flood routing.The result shows that the failure process of Sunkoshi Landslide Dam reaches the dam failure flood peak discharge of 1 794 m3/s through a duration of 68 min,while the duration for the routing of the dam failure flood peak discharge to Pachuwarghat Hydrological Station that is 37.9 km downstream from the breach is 154 min under the consideration of the tributary inflows,from which the calculated discharge result is relatively coincided with the measured da ta from the hydrological station,thus the feasibility and reasonability of the calculation made on the failure of landslide dam with the joint-utilization of both BREACH model and FLDWAV model are verified.The study result can provide references for making the emergency treatment scheme for the similar landslide dam.关键词
溃坝/BREACH模型/FLDWAV模型/逊柯西堰塞坝/洪水演进Key words
dam failure/BREACH model/FLDWAV model/Sunkoshi Landslide Dam/flood routing分类
建筑与水利引用本文复制引用
王双敬,李守义,周兴波,郭新蕾..基于FREAD溃坝体系的堰塞湖溃决过程反演分析[J].水利水电技术,2017,48(9):148-154,7.基金项目
国家重点基础研究发展计划(973)项目(2013CB036403) （973）
流域水循环模拟与调控国家重点实验室开放研究基金项目(IWHR-SKL-201717) （IWHR-SKL-201717）
国家重点研发计划课题(2016YFC0401706) （2016YFC0401706）
国家自然科学基金项目(51679262) （51679262）
