| 石羊河下游咸水区饮用水成井关键工艺分析与应用 |
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| 引用本文： | 付东林,薛斌义,叶得金,佟成利,贾贵义,李爱军,刘如珍.石羊河下游咸水区饮用水成井关键工艺分析与应用[J].水文地质工程地质,2006,33(6):104-106. |
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| 作者姓名： | 付东林 薛斌义 叶得金 佟成利 贾贵义 李爱军 刘如珍 |
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| 作者单位： | 甘肃省地质调查院,兰州,730000 |
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| 基金项目： | 甘肃省严重缺水地区地下水勘查示范项目 |
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| 摘 要： | 文章分析了石羊河下游咸水区人饮水成井中存在降低井水含砂量,避免上部咸水与下部淡水相串两个关键性技术问题。通过孔径与管径的调配设计,增大环状粒料层和止水粘土层的厚度;滤水管外包尼龙纱网;粒料与止水粘土接触界面上设计反滤层;填粒后先行拉活塞利用水力夯实粒料层,再投粘土球止掉上部咸水等措施,在民勤县三口人饮水井施工中取得显著效果,证明了该套成井工艺的有效性和可行性,有望为同类地区人饮水井施工提供技术示范作用。
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| 关 键 词： | 咸水区 人饮水井 成井工艺 技术问题 |
| 文章编号： | 1000-3665(2006)06-0104-03 |
| 收稿时间： | 2006-03-03 |
| 修稿时间： | 2006-05-12 |
Application and analysis of the key well completion technologies for drinking-water supply in the salt-water area on the lower Shiyanghe River basin |
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| FU Dong-lin,XUE Bin-yi,YE De-jin,TONG Cheng-li,JIA Gui-yi,LI Ai-jun,LIU Ru-zhen.Application and analysis of the key well completion technologies for drinking-water supply in the salt-water area on the lower Shiyanghe River basin[J].Hydrogeology and Engineering Geology,2006,33(6):104-106. |
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| Authors: | FU Dong-lin XUE Bin-yi YE De-jin TONG Cheng-li JIA Gui-yi LI Ai-jun LIU Ru-zhen |
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| Institution: | The geological surrey institution of Gansu province, Lanzhou 730000, China |
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| Abstract: | The article analyzes the important problems existing in the well completion technologies for drinking-water suppling in salt-water area on the lower Shiyanghe river basin,which reduces sand content of well water and avoids mixing the upper salt water and the lower fresh water.Designning well tube and drill-hole diameter in order to increase thickness of both annular packing gravel and water-resisting clay,nylon net packing around well tube filters,designing filter layer on the boundary between packing gravel and water-resisting clay and ramming the gravel by working the piston into the well after gravel packing completion and the filling clay for salt-water resisting etc.we succeeded in constructing 3 drinking-water wells in Minqin County,proved the affectivity and feasibility of using it and giving a certain technical demonstration of construction of drinking-water well in the same similar to this area. |
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| Keywords: | salt-water area drinking-water well well completion technologies technical problems |
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