基于Visual MODFLOW的景观湖防渗方式评估及优化设计
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摘要
为探究景观湖生态设计方法,基于Visual MODFLOW模型,对景观湖4种防渗方式进行模拟分析,从水资源、水生态和成本方面进行定量评估,提出了优化复合防渗方式,并探究不防渗景观湖的影响因素和设计条件。研究发现:湖底土工膜和岸坡黏土压实防渗方式能够减少59. 89%的渗漏,降低9. 82%的成本,复合方式较之单一方式更能兼顾生态环境、防渗效果和经济成本;当景观湖不采取防渗时,在湖体水位、湖体面积和区域水文条件因素中,湖体水位变化、面积变化对景观湖渗漏量影响更大,湖体面积变化则对周边潜水水位的影响更加明显,而区域水文条件的改变则会影响地下水对景观湖的补充。
In order to explore the ecological design method of landscape lake,based on Visual MODFLOW model,four kinds of anti-seepage modes of landscape lake were simulated and analyzed,and quantitative assessment was made on aspect of water resources,water ecology and cost. On this basis,the composite anti-seepage mode was proposed,and the influencing factors and design conditions of the non-seepage landscape lake were explored. The study found that the submarine geomembrane and bank slope clay compaction anti-seepage method could reduce the leakage by 59. 89% and reduce the total cost by 9. 82%.The composite method could better balance the ecological environment,anti-seepage effect and economic cost,compared with the single method. For the landscape lake without anti-seepage measures,among lake water level,lake area and regional hydrological condition factors,lake water level change had more influence on the landscape lake leakage than area change. The change in lake area was more obvious for the surrounding phrealic water level. Changes in regional hydrological conditions would affect the complementary effect of groundwater on landscape lakes.
In order to explore the ecological design method of landscape lake,based on Visual MODFLOW model,four kinds of anti-seepage modes of landscape lake were simulated and analyzed,and quantitative assessment was made on aspect of water resources,water ecology and cost. On this basis,the composite anti-seepage mode was proposed,and the influencing factors and design conditions of the non-seepage landscape lake were explored. The study found that the submarine geomembrane and bank slope clay compaction anti-seepage method could reduce the leakage by 59. 89% and reduce the total cost by 9. 82%.The composite method could better balance the ecological environment,anti-seepage effect and economic cost,compared with the single method. For the landscape lake without anti-seepage measures,among lake water level,lake area and regional hydrological condition factors,lake water level change had more influence on the landscape lake leakage than area change. The change in lake area was more obvious for the surrounding phrealic water level. Changes in regional hydrological conditions would affect the complementary effect of groundwater on landscape lakes.
引文
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[19]刁维杰,冯忠伦,刘希琛,等.基于Visual MODFLOW的潍坊市北部地区水资源优化配置[J].水电能源科学,2017,35(4):25-28.
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[22]王波雷,刘莹莹.人工湖防渗常用方法比较分析研究:以国家旅游休闲度假区生态谷人工湖为例[J].水利规划与设计,2013(8):64-67.
[23]张彬,李亚玲,崔亦浩,等.基于MODFLOW渗流分析的景观湖防渗方案优化研究[C]∥第三届全国岩土与工程学术大会论文集.成都,2009:580-583.
[2]El-Zehairy A A,Lubczynski M W,Gurwin J.Interactions of artificial lakes with groundwater applying an integrated MODFLOWsolution[J].Hydrogeology Journal,2018,26(1):109-132.
[3]Fan L Q,Wei L P,Zhu L T.Anti-seepage and water treatment of artificial landscape lake[J].China Water&Wastewater,2008,24(12):72-74.
[4]Solder J E,Gilmore T E,Genereux D P,et al.A tube seepage meter for in situ measurement of seepage rate and groundwater sampling[J].Groundwater,2016,54(4):588-595.
[5]Frandsen M,Nilsson B,Engesgaard P,et al.Groundwater seepage stimulates growth of aquatic macrophytes[J].Freshwater Biology,2012,57(5):907-921.
[6]Lv L,Yang J Y,Qin J N.Numerical simulation of impact of artificial lake leakage on shallow groundwater in Taiyuan in third stage of fenhe river water storage project[J].Water Resources and Power,2017,35(1):89-92,208.
[7]Rattray G W.Estimated seepage rates from selected ditches,ponds,and lakes at the Camas National Wildlife Refuge,eastern Idaho[J].Journal of Environmental Management,2017,203:578-591.
[8]Munter J A,Anderson M P.The use of ground-water flow models for estimating lake seepage rates[J].Groundwater,1981,19(6):608-616.
[9]刘志龙.人工湖补水措施及湖底防渗技术[J].中国农村水利水电,2011(9):109-110.
[10]周春生,张文娟,赵盼盼,等.用于寒旱灌区渠道防渗的人工钠化GCL特性研究[J].干旱区资源与环境,2018,32(4):152-159.
[11]樊立群,韦联平,朱林涛.人工景观湖的防渗与水处理[J].中国给水排水,2008,24(12):72-74.
[12]李改琴,孙夏利,李学军.膜料防渗人工湖水质模拟试验研究[J].水资源与水工程学报,2015,26(3):55-59.
[13]王学广,王泽秀.滹沱河石家庄市区段河道人工湖防渗技术研究[J].南水北调与水利科技,2009,7(3):38-41,54.
[14]吴东杰,王金生,丁爱中.湖泊防渗对湖底及周边土壤水分分布的影响[J].环境科学,2007,28(5):1075-1081.
[15]王帅兵,张雪蕾,李常斌,等.基于Visual MODFLOW的武威盆地地下水动态模拟及预测[J].兰州大学学报(自然科学版),2015,51(2):159-165.
[16]饶磊,魏兴萍,刘迅.基于Visual Modflow的重庆某工业园区地下水污染物运移模拟[J].重庆师范大学学报(自然科学版),2018,35(5):72-78,2.
[17]刘建国,许光照,马学礼,等.不同模拟软件在地下水环评中的应用对比研究[J].环境科学与技术,2018,41(增刊1):359-362.
[18]周奇,岑国平,冀鹏,等.采用Visual Modflow研究机场场区地下水渗流场[J].中国给水排水,2011,27(11):51-54.
[19]刁维杰,冯忠伦,刘希琛,等.基于Visual MODFLOW的潍坊市北部地区水资源优化配置[J].水电能源科学,2017,35(4):25-28.
[20]马从安,李克民,石磊,等.Visual MODFLOW在露天矿地下水模拟中的应用[J].环境工程,2011,29(1):98-101.
[21]高双强,周云,雒望余.西安市灞河广运潭人工湖防渗方案优选[J].甘肃水利水电技术,2013,49(4):17-19.
[22]王波雷,刘莹莹.人工湖防渗常用方法比较分析研究:以国家旅游休闲度假区生态谷人工湖为例[J].水利规划与设计,2013(8):64-67.
[23]张彬,李亚玲,崔亦浩,等.基于MODFLOW渗流分析的景观湖防渗方案优化研究[C]∥第三届全国岩土与工程学术大会论文集.成都,2009:580-583.