沿江圩区局部洼地排涝模数关联因子分析及应用

doi:10.3969/j.issn.1674-8530.15.0186

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摘要沿江圩区局部洼地涝灾频发,是目前圩区涝灾治理的重点.针对局部洼地排涝特点,以扬州江都沿江开发区为例,通过排涝水文分析计算得到排涝模数与排涝面积、水面率、调蓄水深、暴雨重现期4种关联因子之间的关系,选取典型区对局部洼地涝灾进行成因分析,并在此基础上提出圩区内局部洼地涝灾的防治措施.结果表明:排涝面积与排涝模数的偏相关系数为-0.905,相关性最大;局部洼地排涝面积小,洪水汇流速度快,洪峰径流模数和排涝模数较大;局部洼地区缺乏小型河网、河流间距过大、水系布置不合理和采用排涝模数较低,是涝灾频发的主要原因.以关联因子分析和成因分析为基础,提出了通过缩小河流间距、增加水面率、充分发挥河道的调蓄作用等措施以防治涝灾的产生,并且提出了符合圩区局部洼地水情特征的一种排水管网与河道布置模式.

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	段圣泼
	吴玉柏

	金秋
	邵孝侯

关键词 ：局部洼地, 排涝模数, 调蓄水深, 排涝面积, 涝灾防治

Abstract：Serious waterlogging disasters occur frequently in local depressions of polders along Yangtze River, so that it should be managed at first of the moment. Focused on the local depressions of polders in Jiangdu District, the relationships between drainage modulus, drainage acreage, water surface ratio, depth of river and recurrence period are established based on hydrology analysis and calculation. The reasons of waterlogs occur in a typical local depression are inferred, which were followed by the effective preventive measures. The results indicate that the partial correlation coefficient between drainage modulus and drainage area is -0.905, which has the strongest correlation. Furthermore, flooding peak runoff and waterlogging drainage modulus are larger because of the fast floodwater conflux speed in local depressions. The main reasons for the occurrence of waterlogging disaster in local depressions include a lack of river network, large interval between rivers and small drainage modulus as well as unreasonable layout of drainage system. Based on this analysis, a series of measures are put forward to prevent from waterlogs, namely shrinking the interval between rivers, increasing water surface ratio, fully using regulation and storage capacity of waterway. Finally, a drainage pipe network and a layout of waterways, which are suitable to the hydrologic characteristics of local depressions, are proposed.

Key words： local depressions drainage modulus the water depth of regulation and storage drainage area prevention of waterlog

收稿日期: 2015-08-25

基金资助:江苏省2015年度普通高校研究生实践创新计划项目(2015B43014)

通讯作者: 金秋(1983—),男,江苏徐州人,工程师,博士(通信作者,fengyuwuzujq@163.com),主要从事农业水土资源与水土保持研究.

作者简介: 段圣泼(1992—),男,江苏丰县人,硕士研究生(854930001@qq.com),主要从事农业水土资源与防洪排涝研究.

引用本文:

段圣泼, 吴玉柏^,, 金秋, 邵孝侯. 沿江圩区局部洼地排涝模数关联因子分析及应用[J]. 排灌机械工程学报, 2016, 34(3): 238-243. DUAN Shengpo, WU Yubai^,, JIN Qiu, SHAO Xiaohou. Factor analysis and application of drainage modulus of local depression in polders along Yangtze River. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(3): 238-243.

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http://zzs.ujs.edu.cn/pgjx/CN/10.3969/j.issn.1674-8530.15.0186 或 http://zzs.ujs.edu.cn/pgjx/CN/Y2016/V34/I3/238

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