| 强随机分布裂隙介质的二维逾渗规律研究 |
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| 引用本文： | 冯增朝,赵阳升,吕兆兴. 强随机分布裂隙介质的二维逾渗规律研究[J]. 岩石力学与工程学报, 2006, 25(Z2): 3904-3908 |
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| 作者姓名： | 冯增朝 赵阳升 吕兆兴 |
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| 作者单位： | 太原理工大学,采矿工艺研究所,山西,太原,030024 |
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| 基金项目： | 国家自然科学基金;山西省自然科学基金 |
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| 摘 要： | 首先以介质中裂隙的方向分布为基础,将孔隙裂隙双重介质分为弱随机分布裂隙介质、分组分布裂隙介质、强随机分布裂隙介质3类。然后将岩体的主要渗流通道——裂隙引入到逾渗研究理论中,以裂隙数量分布分形规律的基础,建立了强随机分布裂隙介质的逾渗模拟方法。通过数值计算的方法研究了强随机分布裂隙介质逾渗现象与逾渗规律,得到了以裂隙分形维数、裂隙数量分布初值、孔隙率为变量的逾渗阈值的数学表达式。
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| 关 键 词： | 岩石力学 强随机分布裂隙介质 孔隙裂隙双重介质 逾渗规律 裂隙分布 |
| 文章编号： | 1000-6915(2006)增2-3904-05 |
| 修稿时间： | 2005-11-18 |
RESEARCH ON LAWS OF 2D PERCOLATION OF FULLY RANDOM DISTRIBUTION FRACTURE MEDIA |
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| FENG Zengchao,ZHAO Yangsheng,L Zhaoxing. RESEARCH ON LAWS OF 2D PERCOLATION OF FULLY RANDOM DISTRIBUTION FRACTURE MEDIA[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(Z2): 3904-3908 |
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| Authors: | FENG Zengchao ZHAO Yangsheng L Zhaoxing |
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| Affiliation: | FENG Zengchao,ZHAO Yangsheng,L(U) Zhaoxing |
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| Abstract: | On the base of direction of crack in various media,the porosity and fracture media are separated to partially random distribution fracture media,group distribution fracture media and fully random distribution fracture media.Then,the main seepage of rock mass with cracks is introduced in the percolation theory.On the base of fractal laws of crack number distribution,the simulation method is proposed,which can be used for the percolation of fully random distribution fracture media.By the numerical simulation method,the percolation phenomena and percolation law are studied,the mathematical expressions of percolation threshold that contains crack fractal dimension,initial fractal constants of crack and pore rate,are obtained. |
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| Keywords: | rock mechanics fully random distribution fracture media porosity and fracture double-media percolation law distribution of cracks |
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