摘要
分析了1987-2007年宁河县地下水各含水层组年水位埋深、开采量变化情况以及累计水位降深与累计开采量、沉降量的变化规律,明确了地下水超采是引起宁河县地面沉降及水位降深增加的主要原因。为了控制地面沉降及水位持续下降的趋势,结合宁河县地下水超采状况、经济发展和地下水资源的战略储备需要,制定了以控制地面沉降量为约束条件的控沉方案,最终通过建立宁河县地下水数值模型,并结合约束条件,预测了3个水平年地下水开采控制方案。研究成果可为今后宁河县地下水优化管理及开采控制研究提供参考。
Firstly,the annual change situation of each aquifer water depth and exploitation in Ninghe County has been ana-lyzed. Then the annual change situation of each aquifer cumulative drawdown and cumulative exploitation has been dis-cussed,as well as the relationship between cumulative settlement and cumulative exploitation has been studied. Analysisresults show that the excessive exploitation of groundwater is the main reason which caused land subsidence and groundwa-ter depth increasing in Ninghe County. In order to control the ground subsidence and water level continued to decline,com-bined with the groundwater overexploitation status,economic development and groundwater resources strategic reserveneeds,the control settlement scheme has been set to control land subsidence which is as constraint condition in NingheCounty. Finally,through the establishment of Ninghe County groundwater numerical model,combined with the constraintcondition,the control scheme of groundwater exploitation in three level years has been predicted. The results may serve asa reference for the future optimal management of the groundwater and study on control of groundwater exploitation in Ning-he County.
出处
《海河水利》
2014年第3期10-13,共4页
Haihe Water Resources
关键词
宁河县
水位埋深
开采量
沉降量
地面沉降
数值模型
开采控制
Ninghe County
groundwater depth
exploitation yield
settlement
ground subsidence
numerical model
exploitation control
