| 确定含水层渗透系数的冲击试验方法 |
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| 引用本文： | 独仲德,马炳辉,姚来根,王志明.确定含水层渗透系数的冲击试验方法[J].水科学进展,2003,14(6):759-762. |
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| 作者姓名： | 独仲德 马炳辉 姚来根 王志明 |
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| 作者单位： | 中国辐射防护研究院, 山西, 太原, 030006 |
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| 基金项目： | 中国辐射防护研究院与日本原子力研究所合作研究项目(CIRP/073) |
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| 摘 要： | 运用Hvorslevr冲击试验方法测定CIRP试验场地下研究设施(URF)试验含水层的渗透系数。由于含水层厚度小、富水性差,正在进行核素迁移试验,以及操作空间有限,因此不能进行抽水或注水试验,同时考虑到试验范围较小,故采取冲击试验求含水层的渗透系数。含水层介质为亚粘土,隔水底板距URF底板面约6m。试验的冲击量小,可以忽略URF内南部含水层对试验结果的影响。试验钻孔的孔径和井管内径相近,减小了钻孔结构对试验结果的影响。试验结果(472×10-4、658×10-4cm/s)与采用自URF内试验含水层的未扰动土柱所作的室内渗透试验结果(41×10-4～82×10-4cm/s)在同一数量级。
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| 关 键 词： | 冲击试验 含水层 渗透系数 |
| 文章编号： | 1001-6791(2003)06-759-04 |
| 收稿时间： | 2002-05-08 |
| 修稿时间： | 2002年5月8日 |
Slugging test method for determining permeability coefficient of unconfined aquifer |
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| DU Zhong-de,MA Bing-hui,YAO Lai-gen,WANG Zi-ming.Slugging test method for determining permeability coefficient of unconfined aquifer[J].Advances in Water Science,2003,14(6):759-762. |
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| Authors: | DU Zhong-de MA Bing-hui YAO Lai-gen WANG Zi-ming |
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| Institution: | China Institute for Radiation protection, Taiyuan 030006, China |
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| Abstract: | The permeability coefficient of unconfined aquifer in the underground research facilities (URF) at CIRP's test field was obt ained by Hvorslevr's slug test which seems to be an only appropriate option that in the condition of thin aquifer, poor water quantities, limited space for ongoing test of nuclides migration, we can not adopted any pumping test ot injection test.The aquifer medium is made of loam.The bot tom of URF is 6 meters higher than the bottom of the aquifer.The impulse capacity of the test was so small that we can neglect the impact on test results from the south of the aquifer.The aperture of bore hole for test designed was closed to the inner diameter of well pipe theref or the influence of the structure of bore hole on test results was reduced.Comparison of the results of laboratory test (4.1×10-4~8.2×10-4cm/s) in which undist urbed soil column was used and the permeability coefficients result acquired by the slug test (4.72×10-4, 6.58×10-4cm/s) was same in magnitude. |
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| Keywords: | slug test unconfined aquifer permeability coefficient |
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