摘要
由于地下水的大量开采及永定河补水的减少,玉泉山泉水自1975年断流。随着南水北调工程的实施,在西山地区进行回灌和压采区域地下水成为可能。利用GMS数值模型,以河道补给、人工回灌、关井压采等手段设计4种调蓄方案,分析玉泉山泉复涌可行性及复涌后对地质环境的影响。研究表明,方案四可优先作为玉泉山泉复涌的调蓄方案,该方案主要利用在永定河引水渠和南旱河沿岸进行大口井回灌,回灌量约为8000万m^(3)·a^(-1),同时,岩溶水集中水厂停采,其余开采量保持现状不变。在此方案下,区域水位平均每年上升0.84 m,预计到2050年末,玉泉山泉水位51.9 m,达到出流水位。
Due to massive groundwater exploitation and reduction of Yongding River water replenishment,Yuquan Mountain's spring water has been dry since 1975.With the implementation of the South-to-North Water Diversion Project,it is possible to recharge and press regional groundwater in the Xishan area.Using the GMS numerical model,four kinds of regulation and storage schemes are designed by means of river recharge,artificial recharge,shut-in and pressure production,to analyze the feasibility of Yuquan Mountain spring recovery and its impact on the geological environment.Studies show that Option 4 can be prioritized as the regulation and storage plan for Yuquan Mountain spring recovery.The plan mainly recharges the large wells along the diversion canal of Yongding River and Nanhan River,with a recharge volume of about 80 million m^(3).a^(-1).At the same time,concentrated water plants stopped exploring karst water,and the rest of the water exploitation volume remained unchanged.Under this plan,the regional water level will rise by 0.84 m per year on average.It is estimated that by the end of 2050,the water level of the Yuquan Mountain spring will be 51.9 m,reaching the outflow level.
作者
董殿伟
马如林
李玉虎
林佳旭
DONG Dianwei;MA Rulin;LI Yuhu;LIN Jiaxu(Beijing Institute of Geological&Prospecting Engineering,Beijing 100048,China;Beijing Chaobai River Management Office,Beijing 101300,China)
出处
《城市地质》
2021年第2期139-146,共8页
Urban Geology
基金
北京市科技计划课题“北京市西郊地区地下水战略储备关键技术研究与示范”(Z141100003614060)资助。
关键词
玉泉山泉
泉水恢复
岩溶水
地下水调蓄方案
GMS
回灌
数值模拟
Yuquan Mountain spring
recovery of the spring water
karst water
groundwater regulation and storage schemes
GMS
recharge
numerical simulation
