不同回灌条件下通辽市科尔沁区的地下水位响应研究  

Response of Groundwater Level Under Different Recharge Conditions in Horqin District,Tongliao City

作　　者：刘圣昱 束龙仓[1,2] 澈丽木格 张彤豪 刘波[1,2] LIU Sheng-yu;SHU Long-cang;CHE Li-mu-ge;ZHANG Tong-hao;LIU Bo(College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;The National Laboratory of Water Disaster Prevention,Hohai University,Nanjing 210098,China;Tongliao Water Conservancy Development Center,Tongliao 028000,China)

机构地区：[1]河海大学水文水资源学院,江苏南京210098 [2]河海大学水灾害防御全国重点实验室,江苏南京210098 [3]通辽市水利事业发展中心,内蒙古通辽028000

出　　处：《水电能源科学》2024年第7期30-34,共5页Water Resources and Power

基　　金：国家重点研发计划(2021YFC3200502)。

摘　　要：随着社会经济的发展,为满足农业生产需求,科尔沁区内的开采井规模及数量不断扩大增加,造成区内地下水超采严重,地下水位持续下降,严重制约着当地的发展。为此,参考地下水位下降较严重区域位置、水系分布、引水工程的引水量及单井的回灌能力等条件,选取河道、回灌井、河道回灌井结合的回灌方式,设计不同降水条件下的9种回灌方案(s1~s9),利用FEFLOW软件建立相应的地下水流数值模型,并模拟不同的回灌方案,分析各方案下地下水位的响应情况。结果表明,丰水年条件下,方案s3的地下水位平均抬升值最大,地下水位的恢复效果最好,而方案s2的单位回灌量最小,回灌效率最高,其次为方案s3,平水年与枯水年条件下结果类似。研究结果可为当地的地下水位恢复和地下水资源的合理开发利用提供重要参考。With the development of society and economy,in order to meet the demand for agricultural production,the scale and quantity of production wells continue to expand,causing serious overexploitation of groundwater.And the local groundwater level continues to decline,seriously restricting local development.Refering to the location of areas with severe groundwater level decline,the distribution of water systems,the amount of water diverted by the water diversion project,and the recharge capacity of individual wells,the recharge methods including river channels,recharge wells,and combination of river channel with recharge wells were selected.Nine recharge schemes were designed under different precipitation conditions.The software FEFLOW was used to establish the corresponding numerical model of groundwater flow for simulating different schemes.The response of groundwater level under each scheme was analyzed.The results show that under the conditions of wet year,scheme s3 had the highest average increase in groundwater level and the restoration effect of groundwater level is the best.However,scheme s2 had the smallest unit recharge amount and the highest recharge efficiency,followed by scheme s3.The results were similar in normal and dry water years.This research result can provide important references for the restoration of local groundwater levels and the rational development and utilization of groundwater resources.

关 键 词：地下水人工回灌 地下水位 数值模型 科尔沁区 FEFLOW 

分 类 号：TV211.12[水利工程—水文学及水资源]