陕北大、中型淤地坝现状调查与分析
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陕西省水土保持局淤地坝建设重大项目


Field Survey and Analysis on Status of Large and Medium Sized Check-Dams in Northern Shaanxi Province
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    摘要:

    对陕西省淤地坝安全大检查专项行动中陕北大、中型淤地坝的建坝密度、实测拦泥库容、单坝控制面积等指标进行了实地调查和数据整理。结果表明,陕北大、中型淤地坝控制面积为28 703.84 km2,拦沙总量达4.11×1015kg,反映了淤地坝具有显著的拦泥淤地作用。淤地坝的建坝密度、实测拦泥库容、单坝控制面积,两两成正相关关系。陕北榆林市已淤成的大、中型淤地坝地主要用于种植农作物。但种植作物太过单一,而延安市已淤成的大、中型淤地坝地只局限于拦截泥沙。陕北淤地坝主要的管护方式为集体管护。淤地坝各部件中最严重的安全隐患是坝体隐患。

    Abstract:

    Indices of structure density,measured sediment blocking capacity,and single-dam control area were surveyed,compiled and analyzed for the large and medium sized check-dams in Northern Shaanxi Province in the special action of check-dam safety inspection.The results show that the total control area of large and medium sized check-dams was 28703.84 km2 and the total sediment discharge reduction was 4.11@1015kg,highlighting the critical role of check-dams on sediment blocking and silting.Positive pair-wise correlations were found significantly among building density of check-dams,capacity of sediment blocking and control areas of the single-dam.The silted check-dams of Yulin City were utilized mainly for crops limited to a few species only,while in Yan.an City,the silted check-dams were confined to sediment holding only.The management and protection of check-dams were conducted collectively through governments.The most serious potential safety hazard of the check-dams could be the hidden danger in the dam body.

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马宁,朱首军,王盼.陕北大、中型淤地坝现状调查与分析[J].水土保持通报,2011,(3):155-160

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历史
  • 收稿日期:2011-03-09
  • 最后修改日期:2011-04-01
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  • 在线发布日期: 2014-11-26
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