2016年达拉特旗淤地坝水毁原因及拦沙效果
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TV873

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国家重点研发计划(2016YFC0401610);黄河水利科学研究院基本科研业务费专项(HKY-JBYW-2017-20)


Damage causes and sand-blocking effects of warping dams in Dalat Banner in 2016
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    摘要:

    为核查淤地坝水毁原因及对入黄泥沙的影响,基于西柳沟和罕台川小流域19座淤地坝决口现场调查资料,分析得出2016年“8·17”暴雨降雨过程和入黄水沙的特征。针对淤地坝结构和运行特点,结合现场对淤地坝水毁情况尤其是决口部位冲蚀形态的详细查勘,从降雨以及淤地坝规划、设计、施工、管理等方面分析了淤地坝水毁原因,定性给出了淤地坝决口形式及拦沙效果。提出优化坝系布局和建设标准,改进放水建筑物结构并强化施工质量管理,重视预警预报等非工程措施建设等建议。

    Abstract:

    To examine the damage causes of warping dams and their impacts on sediment delivery into the Yellow River, the characteristics of the rainstorm process at August 17 and the inflow of water-sediment into the Yellow River were obtained based on the field investigation results of 19 warping dam breaches and the data of hydrological stations and rainfall stations in Xiliugou and Hantaichuan watersheds. According to the structure and operation characteristics of the warping dams, combined with the detailed investigation of the flood-induced damage situation, especially the erosion form at the break sites, the causes of flood-induced damage were analyzed from the aspects of rainfall, planning, design, construction and operation management of the warping dams. The break modes and sand-blocking effects of the warping dams were qualitatively presented. Suggestions are proposed, including optimizing dam-system layout and construction standard, improving the structure of drainage structures, strengthening construction quality management, and paying attention to non-engineering measures such as early warning and prediction.

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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.(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):1-6.(in Chinese))

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  • 在线发布日期: 2019-07-24
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