考虑地下水入渗的洪水演进模型构建及应用
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摘要
近年来我国北方地下水埋深逐渐增加,在洪水演进中,地下水渗漏的可能性较大,从而对洪水演进可能产生较大影响。针对此问题,以小清河分洪区及其西部为研究对象,建立了考虑地下水入渗的洪水演进模型。利用该模型对小清河分洪区的设计标准洪水进行了模拟,分析了地下水渗漏对小清河分洪区、河北省部分区域的水位以及出口东茨村的水位和泄量的影响。模拟结果表明:地下水渗漏对小清河分洪区的洪水演进有较大影响。因此在小清河分洪区的调度运用以及治理规划时,需要充分考虑地下水渗漏这一重要因素。
In recent years,the gradual increase of groundwater depth may cause large proportion of leakage,which may influence flood routing obviously. For that reason,flood routing model considering groundwater leakage was established taking Xiaoqinghe flood diversion area and 'its west zone as study object. The model was applied to simulate the flood design-standard of Xiaoqinghe flood diversion area.Then the influence of groundwater leakage on flood level of the Xiaoqinghe flood diversion area in Hebei Province,and flood level of Dongcicun station,which is the exit of the flood diversion area,was analyzed. The study result indicated that groundwater leakage had great effect on flood routing in the Xiaoqinghe flood diversion area. Therefore,groundwater leakage must be considered sufficiently in flood control and manage,and construction planning.
In recent years,the gradual increase of groundwater depth may cause large proportion of leakage,which may influence flood routing obviously. For that reason,flood routing model considering groundwater leakage was established taking Xiaoqinghe flood diversion area and 'its west zone as study object. The model was applied to simulate the flood design-standard of Xiaoqinghe flood diversion area.Then the influence of groundwater leakage on flood level of the Xiaoqinghe flood diversion area in Hebei Province,and flood level of Dongcicun station,which is the exit of the flood diversion area,was analyzed. The study result indicated that groundwater leakage had great effect on flood routing in the Xiaoqinghe flood diversion area. Therefore,groundwater leakage must be considered sufficiently in flood control and manage,and construction planning.
引文
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[4]Bronstert A,Bardossy A,Bismuth C,et al.Multi-scale modelling of land-use change and river training effects on floods in the Rhine basin[J].River Research and Applications,2007,23(10):1102-1125.
[5]李建柱,冯平.紫荆关流域下垫面变化对洪水的影响[J].地理研究.2011,30(5):921-930.
[6]李杰,许光泉.一次洪水后河流对地下水影响数学模型及其应用研究[J].地下水.2016,38(5):12-15.
[7]张倩,王文科,段磊,等.金陵河洪水入渗对地下水调蓄能力影响的数值模拟研究[J].水资源与水工程学报.2014,25(1):91-94.
[8]徐华山,赵同谦,孟红旗,等.河岸带地下水理化指标变化及与洪水的响应关系研究[J].环境科学.2011,32(3):632-640.
[9]尹立河,张俊,王晓勇,等.基于地下水对洪水响应的含水层水力参数反演[J].人民黄河.2014,36(10):58-60+64.
[10]姜姗姗,占车生,王会肖,等.地下水开采对海河流域水循环过程影响的模拟[J].南水北调与水利科技.2016,14(4):54-59.
[11]韩鹏.海河流域地下水开发利用现状与对策[J].海河水利,2015(1):1-5.
[12]任永强,潘云,宫辉力.海河流域地下水储量空间变化趋势分析[J].首都师范大学学报(自然科学版).2014,35(2):89-98.
[13]胡春岐,刘惠霞.河北省“7.21”暴雨洪水分析[J].河北水利,2012(7):7-7+21.
[14]李大鸣,林毅,徐亚男,等.河道、蓄滞洪区洪水演进数学模型[J].天津大学学报(自然科学与工程技术版),2009,42(1):47-55.
[15]沈冰,黄红虎.水文学原理[M].北京:中国水利水电出版社,2008:61-62.
[16]张兆吉,费宇红,陈宗宇,等.华北平原地下水可持续利用调查评价[M].北京:地质出版社,2009:179-180.
[17]姚晨光,董传红,马建礼,等.小清河分洪区(河北省部分)安全建设工程可行性研究报告[R].河北省水利水电勘测设计研究院,2012,6:111-112.