Risk Analysis of Check Dam System Under Extreme Rainfall in Small Watershed

ZU Qiang; CHEN Zuyu; YU Shu; HUANG Xieping; YU Kunxia; WANG Zhijian; WANG Lin

doi:10.13870/j.cnki.stbcxb.2022.01.005

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Risk Analysis of Check Dam System Under Extreme Rainfall in Small Watershed

更新时间：2025-03-12

- Risk Analysis of Check Dam System Under Extreme Rainfall in Small Watershed
- Vol. 36, Issue 1, Pages: 30-37(2022)
- 作者机构：
  
  1. 西安理工大学西北旱区生态水利国家重点实验室,西安,710048
  2. 中国水利水电科学研究院岩土工程研究所,北京,100048
  3. 浙江大学建筑工程学院岩土工程研究所,杭州,310058
  4. 山西农业大学水土保持科学研究所,太原,030013
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2022.01.005
  CLC： TV122
- Published：2022
- 稿件说明：
移动端阅览
ZU Qiang, CHEN Zuyu, YU Shu, et al. Risk Analysis of Check Dam System Under Extreme Rainfall in Small Watershed[J]. 2022, 36(1): 30-37.
DOI：

ZU Qiang, CHEN Zuyu, YU Shu, et al. Risk Analysis of Check Dam System Under Extreme Rainfall in Small Watershed[J]. 2022, 36(1): 30-37. DOI： 10.13870/j.cnki.stbcxb.2022.01.005.

摘要

近年来

黄土高原上的淤地坝在减轻水土流失、淤地造田等方面发挥了重要作用。但相较土石坝

淤地坝的防洪标准不高

更容易发生溃坝。淤地坝多以梯级形式分布在若干小流域中

构成了一个复杂的坝系网络

为正确评价溃决风险带来很大的挑战。采用一种基于小流域水文计算和考虑复杂入流条件的淤地坝系连溃风险分析模型及相应的计算程序FT-IWHR

以山西省西廒沟流域淤地坝除险加固工程为实例

在校核工况(洪水重现期为200年)下对现状淤地坝系进行了连溃风险分析。同时在现状坝系和若干年后各坝淤积面达到设计淤积高程这2种工况下对除险加固方案进行了可行性分析。结果表明: 现有8#中型坝不满足防洪标准

临界降雨量仅为133 mm; 增设宽6 m、高3 m的溢洪道后临界降雨量增至945 mm

在淤积面达到设计淤积高程后临界降雨量降为886 mm

均满足防洪要求; 且增设溢洪道能够有效减少淤积面升高带来的风险。研究提出的淤地坝系连溃风险分析方法及实例应用成果对淤地坝系在极端降雨下的防洪风险分析和规划设计具有一定的参考价值。

Abstract

In recent years

check dams on the Loess Plateau have played an important role in mitigating soil erosion and silting land for land reclamation. But compared with earth and rock dams

the flood control standard of check dams is not high

and the dam break is more likely to occur. Check dams are distributed in a number of small basins in the form of stairs

forming a complex dam system network

which brings great challenges for the correct evaluation of the risk of failure. This paper adopted a failure risk analysis model of check dam systems based on hydrological calculations in small watersheds and considered the complex inflow conditions and the corresponding calculation program FT-IWHR. Taking the check dam reinforcement project in the Xi'ao watershed in Shanxi Province as an example

under the checking conditions (the flood return period is 200 years)

the current check dam system was analyzed for continuous collapse risk. At the same time

the feasibility analysis of the danger-removing and reinforcement scheme was carried out under the two working conditions of the current check dam system and the siltation surface of each dam reaching the design siltation elevation after a few years. The results showed that the current 8# medium dam did not meet the flood control standards

and the critical rainfall was only 133 mm. The critical rainfall would increase to 945 mm after adding the spillway of 6 m wide and 3 m high

and the critical rainfall would decrease to 886 mm after the siltation surface reached the siltation elevation. both of which could meet the flood control requirements. And the addition of a spillway could effectively reduce the risk caused by the rise of the siltation surface. The risk analysis method and practical application results of check dam system have certain reference value for flood control risk analysis and planning design of check dam system under extreme rainfall.

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references

Zhou Z X, Li J. The correlation analysis on the landscape pattern index and hydrological processes in the Yanhe watershed, China [J]. Journal of Hydrology, 2015, 524(5): 417-426.

杨媛媛, 李占斌, 高海东, 等. 大理河流域淤地坝拦沙贡献率分析[J]. 水土保持学报, 2021, 35(1): 85-89.

冉大川, 姚文艺, 李占斌, 等. 不同库容配置比例淤地坝的减沙效应[J]. 农业工程学报, 2013, 29(12): 154-162.

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): 32-38.

Huang Y, Zhang B. Challenges and perspectives in designing engineering structures against debris-flow disaster [J/OL]. European Journal of Environmental and Civil Engineering, 2020: 1-22. https://doi.org/10.1080/19648189.2020.1854126.

Cascini L, Cuomo S, Pastor M, et al. Modelling of debris flows and flash floods propagation: A case study from Italian Alps [J/OL]. European Journal of Environmental and Civil Engineering, 2020: 1-24. https://doi.org/10.1080/19648189.2020.1756418.

孙从建, 张文强, 李新功, 等. 基于遥感影像的黄土高原沟壑区生态效应评价[J]. 农业工程学报, 2019, 35(12): 165-172.

刘雅丽, 贾莲莲, 张奕迪. 新时代黄土高原地区淤地坝规划思路与布局[J]. 中国水土保持, 2020(10): 23-27.

袁水龙, 李占斌, 李鹏, 等. 基于MIKE模型的不同淤地坝型组合情景对小流域侵蚀动力和输沙量的影响[J]. 水土保持学报, 2019, 33(4): 30-36.

李莉, 王峰, 孙维营, 等. 黄土高原淤地坝水毁问题分析[J]. 中国水土保持, 2014(10): 20-22.

Zhang F Y, Yan B B, Feng X M, et al. A rapid loess mudflow triggered by the check dam failure in a bulldoze mountain area, Lanzhou, China [J]. Landslides, 2019, 16(10): 1981-1992.

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): 1-6.

党维勤, 郝鲁东, 高健健, 等. 基于"7·26"暴雨洪水灾害的淤地坝作用分析与思考[J]. 中国水利, 2019(8): 52-55.

魏艳红, 王志杰, 何忠, 等. 延河流域2013年7月连续暴雨下淤地坝毁坏情况调查与评价[J]. 水土保持通报, 2015, 35(3): 250-255, 2.

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): 17-25.

赵宾华. 淤地坝系溃坝机理与防洪风险评价研究[D]. 西安: 西安理工大学, 2015.

蒋耿民. 淤地坝坝系工程总体布局综合评价指标体系及模型研究[D]. 陕西杨凌: 西北农林科技大学, 2010.

Sepehri M, Ildoromi A R, Malekinezhad H, et al. Assessment of check dams' role in flood hazard mapping in a semi-arid environment [J]. Geomatics, Natural Hazards and Risk, 2019, 10(1): 2239-2256.

Yazdi J, Moghaddam M S, Saghafian B. Optimal design of check dams in mountainous watersheds for flood mitigation [J]. Water Resources Management, 2018, 32(14): 4793-4811.

Zhong Q M, Wang L, Chen S S, et al. Breaches of embankment and landslide dams - State of the art review [J]. Earth-Science Reviews, 2021, 216: e103597.

Chen Z Y, Huang X P, Yu S, et al. Risk analysis for clustered check dams due to heavy rainfall [J]. International Journal of Sediment Research, 2021, 36(2): 291-305.

中华人民共和国水利部. 淤地坝技术规范: SL/T 804-2020[S]. 北京: 中国水利水电出版社, 2020.

Viglione A, Merz R, Bloschl G. On the role of the runoff coefficient in the mapping of rainfall to flood return periods [J]. Hydrology and Earth System Sciences Discussions, 2009, 5(5): 205-216.

水利部水利水电规划设计总院. 水工设计手册. 土石坝[M]. 6卷. 北京: 中国水利水电出版社, 2014.

山西省水利厅. 山西省水文计算手册[M]. 郑州: 黄河水利出版社, 2011.

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