[1]马 力,张秋芬,倪用鑫,等.岔巴沟流域不同淤积状态下淤地坝淤积深度研究[J].水土保持研究,2022,29(02):18-22+30.
　MA Li,ZHANG Qiufen,NI Yongxin,et al.Study on Siltation Depth in Warping Dam Under Different Silting Conditions in Chabagou Watershed[J].Research of Soil and Water Conservation,2022,29(02):18-22+30.
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岔巴沟流域不同淤积状态下淤地坝淤积深度研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 29 期数: 2022年02期 页码: 18-22+30 栏目: 出版日期: 2022-03-20
Title:
Study on Siltation Depth in Warping Dam Under Different Silting Conditions in Chabagou Watershed
文章编号:
1005-3409(2022)02-0018-05
作者:
马 力1,2, 张秋芬1,2, 倪用鑫1,2, 李 勉1,2, 吕锡芝1,2
(1.黄河水利科学研究院, 郑州 450003; 2.河南省黄河流域生态环境保护与修复重点实验室, 郑州 450003)
Author(s):
MA Li1,2, ZHANG Qiufen1,2, NI Yongxin1,2, LI Mian1,2, LÜ Xizhi1,2
(1.Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China; 2.Key Laboratory of Yellow River Basin Ecological Environment Protection and Restoration in Henan Province, Zhengzhou 450003, China)
关键词:
淤地坝;  暴雨洪水;  不同淤积状态;  淤积深度;  岔巴沟
Keywords:
warping dam;  rainstorm and flood;  different silting conditions;  siltation depth;  Chabagou
分类号:
S157.1
文献标志码:
A
摘要:
为了进一步明确次暴雨条件下淤地坝的拦沙作用,利用岔巴沟流域不同淤积状态淤地坝泥沙沉积信息,结合线性回归和相关分析等方法,研究了不同淤积状态下淤地坝淤积深度关系。结果表明:(1)不同淤积状态淤地坝的最大淤积深度和平均淤积深度由高到低为堵塞坝(1.07 m,0.62 m)>水毁坝(0.72 m,0.53 m)>完好坝(0.70 m,0.45 m)>淤满坝(0.19 m,0.15 m)。(2)不同淤积状态下坝地淤积深度与降雨强度相关性拟合不明显; 堵塞坝和水毁坝坝地淤积深度与B值(坝地面积与坝控流域面积之比)呈指数负相关,相关指数分别为0.73,0.71。(3)不同淤积状态淤地坝平均拦沙模数由大到小依次为:堵塞坝(14 274 t/km2)>完好坝(12 480 t/km2)>水毁坝(11 725 t/km2)>淤满坝(3 350 t/km2)。综上所述,暴雨条件下,堵塞坝具有高效的拦沙作用,但小库容坝地极易产生较大的淤积深度,从而对坝体产生威胁; 堵塞坝和完好坝的合理配置是流域高效滞洪拦沙的关键。
Abstract:
In order to further clarify the silt retention effect of warping dam under the condition of rainstorm, this study used the sediment deposition information of warping dam under different deposition states in Chabagou Basin to study the relationship between the deposition depth in warping dam under different deposition states by combining with the methods of linear regression and correlation analysis. The results show that:(1)the maximum and average siltation depth in warping dams under different siltation conditions decrease in the order: blocking dam(1.07 m, 0.62 m)>waterlogging dam(0.72 m, 0.53 m)>intact dam(0.70 m, 0.45 m)>full dam(0.19 m, 0.15 m);(2)there is no obvious correlation between the siltation depth and rainfall intensity under different siltation conditions; the siltation depth and B value(the ratio of dam field to dam-controlled watershed area)of blocking dam and waterlogging dam have an exponential negative correlation, and the correlation indexes are 0.73 and 0.71, respectively;(3)warping dam average moduli of intercepting sediment under different silting conditions decreased in the order: blocking dam(14 274 t/km2)>intact dam(12 480 t/km2)>waterlogging dam(11 725 t/km2)>full dam(3 350 t/km2). To sum up, under the condition of rainstorm, the blocking dam has the function of high-efficiency sediment retention, but the dam with small storage capacity is prone to produce a greater depth of sedimentation, which threatens the dam. The reasonable allocation of blocking dam and intact dam is the key to efficient flood detention and sediment retention.

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备注/Memo

收稿日期:2021-02-22 修回日期:2021-03-30
资助项目:国家自然科学基金(51979118); 中央级公益性科研院所基本科研业务费专项资金(HFY-JBYW-2019-01,HFY-JBYW-2019-12); 国家重点实验室基金(IWHR-SKL-KF201903)
第一作者:马力(1987—),男,河南周口人,工程师,硕士,主要从事土壤侵蚀与水土保持研究。E-mail:hilary777@126.com
通信作者:吕锡芝(1986—),男,山东惠民人,高级工程师,博士,主要从事生态水文、水土保持研究。E-mail:nihulvxizhi@163.com

更新日期/Last Update: 2022-04-20