| 岩体裂隙系统渗流场与应力场耦合模型 |
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| 引用本文： | 仵彦卿.岩体裂隙系统渗流场与应力场耦合模型[J].地质灾害与环境保护,1996,7(1):31-34. |
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| 作者姓名： | 仵彦卿 |
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| 作者单位： | 西安理工大学岩土工程研究所 |
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| 基金项目： | 国家自然科学基金,地质灾害防治与工程地质环境保护国家专业实验室开放基金 |
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| 摘 要： | 岩体系统具有复杂的结构。一般认为，岩体系统是非均质各向异性不连续的多相介质体系。当岩体以裂隙为主，且其分布较密集时，可将岩体系统看作等效连续多相介质体系。本文运用等效连续介质理论，提出了两种岩体裂隙系统渗流场与应力场耦合模型：一是以渗透水压力与隙变形关系、应力与渗透系统数关系为基础，建立渗透系数张量计算公式，进而建立等效效连续介质渗流为数学模型。以裂隙岩体应变张量分析为基础，建立裂隙岩体效应力张量
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| 关 键 词： | 岩体裂隙 渗流场 应力场 耦合模型 |
THE COUPLED STRESS-GROUNDWATER FLOW MODEL FOR JOINTED ROCK MASS |
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| Wu Yanqing.THE COUPLED STRESS-GROUNDWATER FLOW MODEL FOR JOINTED ROCK MASS[J].Journal of Geological Hazards and Environment Preservation,1996,7(1):31-34. |
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| Authors: | Wu Yanqing |
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| Abstract: | Rock mass system is generally a kind of multiphase medium system with heterogeneity,anisotropy and discontinuity.If there are a lot of Joints and fractures in it, the rock mass system can be taken as an equivalent multiphase continuum system. In this paper,two models are presented for coupled stress groundwater flow analysis with equivalent continuum theory.According to the relation among seepage pressure and fracture deformation, stress and hydraulic conductivity,the hydraulic conductivity tensor is constructed in fractured rock mass.The mathematical seepage model is deduced from equivalent continuum theory in fractured rock mass.The mathematical model of equivalent stress tensor is deduced from elastic strain tensor analysis in fractured rock mass. The seepage term influenced by stress in groundwater flow eqation is only considered in first model, but both the seepage term and storage term are considered in second model for coupled stress-flow analsis. The relation between seepage and stress is reflected in the models. |
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| Keywords: | Jointed rock mass system Equivalent continuum Seepage field Stress field Model Hydraulic conductivity tensor Elastic strain tensor Elastic stress tensor |
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