| 二维应力作用下岩石单裂隙渗流规律的实验研究 |
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| 引用本文： | 刘才华,陈从新,付少兰. 二维应力作用下岩石单裂隙渗流规律的实验研究[J]. 岩石力学与工程学报, 2002, 21(8): 1194-1198 |
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| 作者姓名： | 刘才华 陈从新 付少兰 |
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| 作者单位： | 中国科学院武汉岩土力学研究所,武汉,430071 |
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| 基金项目： | 国家自然科学基金资助项目(19872070)。 |
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| 摘 要： | 在对人工充填砂裂进行剪切实验的基础上，分析了剪应力和法向有效应力作用下裂隙岩石的渗流特性，并提出了二维应力作用下裂隙岩石渗流模型，即剪应力和法向有效应力耦合作用下的渗流公式。
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| 关 键 词： | 二维应力 岩体裂隙 剪应力 法向有效应力 渗流模型 大坝 |
| 文章编号： | 1000-6915(2002)08-1194-05 |
| 修稿时间： | 2000-11-17 |
TESTING STUDY ON SEEPAGE CHARACTERISTIC OF A SINGLE ROCK FRACTURE UNDER TWO-DIMENTIONAL STRESSES |
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| Liu Caihua,Chen Congxin,Fu Shaolan. TESTING STUDY ON SEEPAGE CHARACTERISTIC OF A SINGLE ROCK FRACTURE UNDER TWO-DIMENTIONAL STRESSES[J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(8): 1194-1198 |
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| Authors: | Liu Caihua Chen Congxin Fu Shaolan |
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| Abstract: | A new laboratory apparatus for coupled shear-flow of jointed rock was developed and used to investigate the coupled characteristic of a single rock fracture under shear and normal effective stresses. Based on shearing test of jointed marble sample under constant normal loads,the relationships among normal stress,shear stress,water pressure and flow quantity are presented, and the seepage charactristic of jointed rock is analysed. The relation equation between flow quantity and shear stress is deduced to fit the curves of testing data. By using an approximate regression equation,the relationship between the hydraulic conductivity and shear stress is estabilished eventually. The testing results reveal that the hydaulic conductivity of a sand-filled joint is reduced slightly with increasing shear stress,and the relationship between hydraulic conductivity and shear stress is linear approximately. |
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| Keywords: | rock fracture shear stress normal effective stress seepage model |
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