城市地质
城市地質
성시지질
URBAN GEOLOGY
2015年
2期
31-35
,共5页
郭彤%薛洪林%付昌鸿%牛升晟
郭彤%薛洪林%付昌鴻%牛升晟
곽동%설홍림%부창홍%우승성
岩溶水%水文地质参数%地下水水质
巖溶水%水文地質參數%地下水水質
암용수%수문지질삼수%지하수수질
Karst water%Hydrogeological parameter%Quality of groundwater
在北京市昌平区高崖口-南口岩溶水分布区,通过水文地质钻探4眼勘查井,进行“非稳定流”抽水试验,采用配线法计算渗透系数、导水系数;按舒卡列夫分类,划分岩溶水水化学类型,并根据Piper图论述了岩溶水水化学特性;根据国家《地下水质量标准》(GB/T14848—93)进行水质标准评价;结果表明区内蓟县系雾迷山组岩溶裂隙含水层空间分布受到南部、西部和西南部3个方向岩浆岩体的明显挤压,空间范围减少,地下水补给受阻,区内东北部南口-孙河断裂上升盘800m以浅,岩溶裂隙发育、渗透性好、导水性强,地下水质量为Ⅲ类,可选作集中生活饮用水水源地靶区。
在北京市昌平區高崖口-南口巖溶水分佈區,通過水文地質鑽探4眼勘查井,進行“非穩定流”抽水試驗,採用配線法計算滲透繫數、導水繫數;按舒卡列伕分類,劃分巖溶水水化學類型,併根據Piper圖論述瞭巖溶水水化學特性;根據國傢《地下水質量標準》(GB/T14848—93)進行水質標準評價;結果錶明區內薊縣繫霧迷山組巖溶裂隙含水層空間分佈受到南部、西部和西南部3箇方嚮巖漿巖體的明顯擠壓,空間範圍減少,地下水補給受阻,區內東北部南口-孫河斷裂上升盤800m以淺,巖溶裂隙髮育、滲透性好、導水性彊,地下水質量為Ⅲ類,可選作集中生活飲用水水源地靶區。
재북경시창평구고애구-남구암용수분포구,통과수문지질찬탐4안감사정,진행“비은정류”추수시험,채용배선법계산삼투계수、도수계수;안서잡렬부분류,화분암용수수화학류형,병근거Piper도논술료암용수수화학특성;근거국가《지하수질량표준》(GB/T14848—93)진행수질표준평개;결과표명구내계현계무미산조암용렬극함수층공간분포수도남부、서부화서남부3개방향암장암체적명현제압,공간범위감소,지하수보급수조,구내동북부남구-손하단렬상승반800m이천,암용렬극발육、삼투성호、도수성강,지하수질량위Ⅲ류,가선작집중생활음용수수원지파구。
In the karst water distribution area of Gaoyakou–Nankou in Beijing, four exploration holes are drilled for the “non-steady lfow pumping test”. The permeability coefifcient and hydraulic conductivity are calculated by iftting curve method. According to the classiifcation of Shug Kalev, we have classiifed the karst water chemistry types; according to the Piper Chart, discussed the karst water chemistry; according to China national standard of Ground Water Quality Standard (GB/T14848—93), evaluated water quality standards. The research results show that the karst fractured aquifer in Jixian System Wumishan Fm. are obviously pressed by the igneous rock bodies from three directions of south, west and southwest, so the aquifer space range is reduced, recharge of groundwater is blocked. In the below 800m surface zone (hanging wall of Nankou-Sunhe fault in the northeastern study area), the karst ifssures are well-developed, permeability and water conductivity are favorable, and groundwater quality is up toⅢ category. As a result, this area may be selected as the target area of centralized drinking water source.