| 某高铁隧道小口径井抽水试验探讨 |
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| 引用本文： | 谭茂兰,武兴龙,肖纲通,覃明彩,辛武.某高铁隧道小口径井抽水试验探讨[J].绿色科技,2020(6):209-211. |
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| 作者姓名： | 谭茂兰 武兴龙 肖纲通 覃明彩 辛武 |
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| 作者单位： | 核工业衡阳第二地质工程勘察有限公司 |
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| 摘 要： | 指出了在某高铁隧道勘察中采用小口径抽水试验方法,具有操作简单便捷,成本低的优势。通过小口径井抽水试验查明场地的水文地质条件,得出了水文地质原始数据资料,根据单孔稳定流承压水非完整井的水文地质实际情况,选取合适的公式分别计算出了隧道岩层渗透系数及影响半径,为高铁隧道的勘察设计及顺利施工提供参考。
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| 关 键 词： | 高铁隧道 小口径井 稳定流 抽水试验 渗透系数 影响半径 |
Discussion on Pumping Test of Small Diameter Well in a High Speed Railway Tunnel |
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| Tan Maolan,Wu Xinglong,Xiao Gangtong,Qin Mingcai,Xin Wu.Discussion on Pumping Test of Small Diameter Well in a High Speed Railway Tunnel[J].LVSE DASHIJIU,2020(6):209-211. |
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| Authors: | Tan Maolan Wu Xinglong Xiao Gangtong Qin Mingcai Xin Wu |
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| Institution: | (Nuclear industry Hengyang Second Geological Engineering Survey Co.,Ltd.Hunan Hengyang 421008 Hengyang Second Gealogical Engineering Survey Co.,Ltd.,Hengyang,Hunan,421008,China) |
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| Abstract: | In the investigation of a high-speed railway tunnel,the small-diameter pumping test method has the advantages of simple operation and low cost.Through the pumping test of small-diameter well,the hydrogeological conditions of the site are found out,and the original hydrogeological data are obtained.According to the hydrogeological actual situation of the non-complete well with single hole unsteady flow confined water,the appropriate formula is selected to calculate the permeability coefficient of the rock stratum and the affected half diameter respectively,which provides reliable technical data support for the investigation,design and smooth construction of the highspeed railway tunnel. |
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| Keywords: | high-speed rail tunnel small bore well steady flow pumping test permeability coefficient Radius of influence |
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