| 含水介质各向异性对渗透系数空间变异性统计的影响 |
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| 引用本文： | 施小清,吴吉春,袁永生,姜蓓蕾. 含水介质各向异性对渗透系数空间变异性统计的影响[J]. 水科学进展, 2005, 16(5): 679-684 |
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| 作者姓名： | 施小清 吴吉春 袁永生 姜蓓蕾 |
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| 作者单位： | 南京大学地球科学系,江苏,南京,210093;南京大学地球科学系,江苏,南京,210093;南京大学地球科学系,江苏,南京,210093;南京大学地球科学系,江苏,南京,210093 |
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| 基金项目： | 国家自然科学基金资助项目(40272106)，博士点基金联合资助项目(20030284027)~~ |
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| 摘 要： | 针对目前渗透系数实测样本假定满足各向同性的局限,以Borden含水层试验场实测数据为例,通过反证法进行相关数据分析,总结了含水介质各向异性对渗透系数空间变异性统计的影响,并指明渗透系数各向同性假设的适用条件以及不合理之处。同时相应地给出了研究尺度下渗透系数场能否采用平稳随机场描述的判定依据。最后为今后进一步开展渗透系数空间变异性研究提出几点建议。
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| 关 键 词： | 含水介质 各向异性 渗透系数 空间变异 地质统计 |
| 文章编号： | 1001-6791（2005）05-0679-06 |
| 收稿时间： | 2004-06-09 |
| 修稿时间： | 2004-07-23 |
Effect of the anisotropy in porous media on the spatial variability of the hydraulic conductivity |
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| SHI Xiao-qing,WU Ji-chun,YUAN Yong-sheng,JIANG Bei-lei. Effect of the anisotropy in porous media on the spatial variability of the hydraulic conductivity[J]. Advances in Water Science, 2005, 16(5): 679-684 |
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| Authors: | SHI Xiao-qing WU Ji-chun YUAN Yong-sheng JIANG Bei-lei |
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| Affiliation: | Department of Earth Sciences, Nanjing University, Nanjing 210093, China |
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| Abstract: | The spatial variability of the hydraulic conductivity in porous media is the base of the groundwater flow and transport.To aim at the limitation of the assumption of the isotropy of the hydraulic conductivity got from the geotechnical tests,the measured data in the Borden test are analyzed to illustrate the applicability and the illogicality of the assumption through reduction to absurdity.The effect of the anisotropy on spatial variability of the hydraulic conductivity is also summarized and the principle to determine whether the hydraulic conductivity field is stationary at different field scales is provided in this paper.(Finally,) some advices on the research of the spatial variability of the hydraulic conductivity are presented. |
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| Keywords: | porous media anisotropy hydraulic conductivity spatial variability geostatistic |
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