1. Northwest Engineering Corporation Limited, 710065, Xi'an, China; 2. State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, 100048, Beijing, China; 3. School of Engineering and Technology, China University of Geosciences (Beijing), 100083, Beijing, China; 4. Fujian Communications Planning & Design Institute Co. Ltd., 350004, Fuzhou, China; 5. Shaanxi Union Research Center of University and Enterprise for River and Lake Ecosystems Protection and Restoration, 710065, Xi'an, China
Abstract：[Background] In recent years, due to the poor service condition and frequent extreme rainfall weather during flood season, the check dams are in the risk of breach while bringing comprehensive benefits, which causes a great threat to the life and property of downstream people and the protection of the ecological environment. Therefore, it is urgent to propose a quantitative calculation method for the loss from check dam system breach under extreme rainfall conditions. [Methods] This study was based on the FT-IWHR program for the risk analysis of dam system failure using the "Genealogy Method", the DB-IWHR program for dam breach flow calculation, and the one-dimensional flood routing calculation program. It proposed a comprehensive calculation method for the entire process of check dam system failure and subsequent flood routing. By integrating the Li-Zhou method for estimating life loss, it constructed a calculation methodology for assessing the impact of dam breach that encompasses life loss, economic loss, and social-environmental impact. [Results] Based on the calculating method system proposed in this study, an application study was carried out on the check dam system in Xiwuselang basin. The results show that the warning time has a great impact on the number of life loss. Under full warning and no warning, the number of life loss is about 10 times different, and the loss increases sharply after the rainfall exceeds 100-year return period. This dam system is mainly breached by small and medium-sized check dam. [Conclusions] The proposed calculation method for breach loss can achieve rapid quantitative evaluation of the loss from check dam system breach, and provide technical support for the safe operation of check dams and reinforcement of dangerous dams. It is suggested that the Xiwuselang basin should do a good work in preventing and controlling the risk of small-and medium-sized check dam breach.
张金良.基于新型淤地坝的黄土高原"小流域+"综合治理新模式探讨[J].人民黄河, 2022, 44(6):1. ZHANG Jinliang. Discussion on the new model of "small watershed +" comprehensive management of the Loess Plateau based on new check dam[J]. Yellow River, 2022, 44(6):1.
[2]
WANG Zhaoyin, CHEN Zuyu, YU Shu, et al. Erosion-control mechanism of sediment check dams on the Loess Plateau[J]. International Journal of Sediment Research, 2021, 36(5): 668.
[3]
陈祖煜, 李占斌, 王兆印.对黄土高原淤地坝建设战略定位的几点思考[J].中国水土保持, 2020(9):32. CHEN Zuyu, LI Zhanbin, WANG Zhaoyin. Some thoughts on the strategic positioning of check dam construction on the Loess Plateau[J]. Soil and Water Conservation in China, 2020(9):32.
[4]
GUO Wenzhao, WANG Wenlong, XU Qiang, et al. Distribution, failure risk and reinforcement necessity of check-dams on the Loess Plateau: A review[J]. Journal of Mountain Science, 2021, 18(2): 499.
[5]
刘雅丽, 王白春.黄土高原地区淤地坝建设战略思考[J].中国水土保持, 2020(9):48. LIU Yali, WANG Baichun. Strategic thinking on check dam construction in Loess Plateau[J]. Soil and Water Conservation in China, 2020(9):48.
[6]
马建业, 张扬, 袁水龙.淤地坝系安全运行保障技术探析[J].中国水土保持, 2019(5):6. MA Jianye, ZHANG Yang, YUAN Shuilong. Analysis of safe operation guarantee technology of check dam system[J]. Soil and Water Conservation in China, 2019(5):6.
[7]
李双双, 孔锋, 韩鹭, 等.陕北黄土高原区极端降水时空变化特征及其影响因素[J].地理研究, 2020, 39(1):140. LI Shuangshuang, KONG Feng, HAN Lu, et al. Spatial-temporal variation characteristics and influencing factors of extreme precipitation in the Loess Plateau of northern Shaanxi[J].Geographical Research, 2020, 39(1):140.
[8]
汪自力, 张宝森, 刘红珍, 等.2016年达拉特旗淤地坝水毁原因及拦沙效果[J].水利水电科技进展, 2019, 39(4):1. WANG Zili, ZHANG Baosen, LIU Hongzhen, et al. Damage causes and sand-blocking effects of warping dams in Dalat Banner in 2016 [J].Advances in Science and Technology of Water Resources, 2019, 39(4):1.
[9]
周克发, 李雷, 盛金保.我国溃坝生命损失评价模型初步研究[J].安全与环境学报, 2007(3):145. ZHOU Kefa, LI Lei, SHENG Jinbao. Preliminary study on life loss evaluation model of dam failure in China[J].Journal of Safety and Environment, 2007(3):145.
[10]
BROWN C A, GRAHAM W J. Assessing the threat to life from dam failure 1[J]. JAWRA Journal of the American Water Resources Association, 1988, 24(6): 1303.
[11]
HUANG Dongjing, YU Zhongbo, LI Yiping, et al. Calculation method and application of loss of life caused by dam break in China[J]. Natural Hazards, 2017(85): 39.
[12]
仇蕾, 王慧敏, 马树建.极端洪水灾害损失评估方法及应用[J].水科学进展, 2009, 20(6):869. QU Lei, WANG Huimin, MA Shujian. Extreme flood disaster loss assessment method and application[J].Advances in Water Science, 2009, 20(6):869.
[13]
李雷. 大坝风险评价与风险管理[M]. 北京: 中国水利水电出版社, 2006:59. LI lei. Risk assessment and risk management of dams[M]. Beijing: China Water & Power Press, 2006:59.
[14]
王丹, 哈玉玲, 李占斌, 等.宁夏典型流域淤地坝系运行风险评价[J].中国水土保持科学, 2017, 15(3):17. WANG Dan, HA Yuling, LI Zhanbin, et al. Operation risk assessment of check dam system in typical river basin in Ningxia[J].Science of Soil and Water Conservation, 2017, 15(3):17.
[15]
CHEN Zuyu, HUANG Xieping, YU Shu, et al. Risk analysis for clustered check dams due to heavy rainfall[J]. International Journal of Sediment Research, 2021, 36(2): 291.
[16]
祖强, 陈祖煜, 于沭, 等.极端降雨条件下小流域淤地坝系连溃风险分析[J].水土保持学报, 2022, 36(1):30. ZU Qiang, CHEN Zuyu, YU Shu, et al. Risk analysis of check dam system under extreme rainfall in small watershed [J].Journal of Soil and Water Conservation, 2022, 36(1):30.
[17]
陈祖煜, 陈淑婧, 王琳, 等.土石坝溃坝洪水分析:原理和计算程序[J].水利科学与寒区工程, 2019, 2(2):12. CHEN Zuyu, CHEN Shujing, WANG Lin, et al. Flood analysis of earth-rock dam failure: Principle and calculation procedure[J]. Hydro Science and Cold Zone Engineering, 2019, 2(2):12.
[18]
周兴波, 金松丽, 杨子儒, 等.基于断波的溃坝洪水演进分析模型研究[J].应用基础与工程科学学报, 2023, 31(3):611. ZHOU Xingbo, JIN Songli, YANG Ziru, et al. Research on flood evolution analysis model of dam failure based on fault wave[J]. Journal of Basic Science and Engineering, 2023, 31(3):611.
[19]
盛金保, 厉丹丹, 蔡荨, 等.大坝风险评估与管理关键技术研究进展[J].中国科学:技术科学, 2018, 48(10):1057. SHENG Jinbao, LI Dandan, CAI Qian, et al. Research progress and its practice of key techniques for dam risk assessment and management[J]. Scientia Sinica Technologica, 2018, 48(10):1057.
[20]
盛金保, 厉丹丹, 龙智飞, 等.水库大坝风险及其评估与管理[M]. 南京:河海大学出版社, 2019:71. SHENG Jinbao, LI Dandan, LONG Zhifei, et al. Risk of reservoir dam and its assessment and management[M]. Nanjing: Hohai University Press, 2019:71.
[21]
葛巍, 焦余铁, 李宗坤, 等.溃坝风险后果研究现状与发展趋势[J].水科学进展, 2020, 31(1):143. GE Wei, JIAO Yutie, LI Zongkun, et al. Research status and development trend of dam failure risk consequences[J].Advances in Water Science, 2020, 31(1):143.
[22]
徐佳成, 杜景灿, 周家骢, 等.现行水电行业标准隐存的梯级水库大坝群风险分析[J].水力发电学报, 2014, 33(5):72. XU Jiacheng, DU Jingcan, ZHOU Jiacong, et al. Risk analysis for dam group of cascade reservoirs based on current hydropower industry standards [J].Journal of Hydroelectric Engineering, 2014, 33(5):72.
[23]
SL/Z 720—2015水库大坝安全管理应急预案编制导则[S].北京:中国水利水电出版社, 2015:23. SL/Z 720—2015 Guidelines for the preparation of emergency plans for the safety management of reservoirs and dams[S].Beijing: China Water & Power Press, 2015:23.
[24]
刘森, 李永明, 栗端付, 等.洪灾经济总损失按产值估算方法探讨[J].灾害学, 2015, 30(3):29. LIU Sen, LI Yongming, LI Duanfu, et al. Discussion on the estimation method of total economic loss of flood disaster by output value[J].Journal of Catastrophology, 2015, 30(3):29.
[25]
李占斌.小流域淤地坝坝系防洪风险评价技术[M].北京:科学出版社, 2018:8. LI Zhanbin. Flood control risk assessment technology of check dam system in small watershed[M].Beijing: Science Press, 2018:8.
2024, Vol. 22 
