摘要
在傍河浅埋薄层含水层地区,利用大口辐射井工艺增大单井出水量,许多水文地质工作者进行了大量的理论探讨与工作实践。该文通过豫西某傍河地段的工程实例,对此类地段进行含水层底部斜孔辐射施工的孔位选定、模型选取、水文地质参数的确定、出水量计算方法、辐射斜孔长度的确定等进行了详细的探讨。依照该方法,在同类地区先后施工三眼辐射井,单井出水量均大于50m3/h,达到了预期目的。
Many hydrologists have carried out lots of researches and theoretical discussions on enlarging well yield of single-well in shallow and thin aquifers along the river by using techniques of radial well with big diameter. In the article, by given an engineering example of a certain district along the river which is in west Henan Province, the author presents some detailed discussions about following aspects： （ 1 ） the place selection of the diagonal bore, in the floor of aquifer during radial construction; （2）construction of model; （3）determination of hydrogeology parameters; （4）calculation of well yield; （5）the length of diagonal bore, According to this method, drilling three radial wells in similar area arc costructed and every single-well yield is more than 50m^3/h which is close to expectation.
出处
《勘察科学技术》
2006年第3期44-46,共3页
Site Investigation Science and Technology
关键词
辐射井
浅埋簿层含水层
施工
radial well
shallow and thin aquifer
construction
