帮助 关于我们

返回检索结果

基于连续介质离散元的双重介质渗流应力耦合模型
COUPLED FLUID FLOW AND STRESS COMPUTATION MODEL OF DUAL MEDIA BASED ON CONTINUUM-MEDIUM DISTINCT ELEMENT METHOD

查看参考文献19篇

文摘 为模拟边坡在库水涨落和降雨作用下的渐进破坏过程,发展基于连续介质离散元的双重介质渗流应力耦合模型。它分为固体计算模型、孔隙渗流应力耦合模型和裂隙渗流应力耦合模型3个部分。固体计算模型能够反映地质体的破坏规律,可以模拟从连续到非连续的破坏过程;孔隙渗流应力耦合模型可以方便地计算出自由水位线 (浸润线)的位置;裂隙渗流应力耦合模型可以避免由于不连通裂隙(孤立裂隙)存在所导致的收敛性问题;假设只考虑库水涨落和降雨的最终状态,裂隙渗流产生的水头分布和由库水涨落所引起的水头改变作为孔隙渗流的变边界条件,从而实现孔隙渗流场和裂隙渗流场的耦合。典型算例计算结果表明,基于连续介质离散元的双重介质渗流应力耦合模型对于库区古滑坡的研究是很有效的。
其他语种文摘 To simulate the progressive failure process of the slope in water level fluctuation and rainfall conditions,a coupled fluid flow and stress computation model of dual media is established based on continuum-medium distinct element method.It contains solid calculation model,pore hydromechanical coupling model and fissure hydromechanical coupling model.Solid calculation model could reflect failure regularity of the geologic body,also could simulate the process from continuum to discontinuum.Pore hydromechanical coupling model could calculate the location of phreatic surface conveniently.Fissure hydromechanical coupling model could avoid convergence problem caused by isolated fissure.Considering the final states of the water level fluctuation and rainfall,the waterhead distribution caused by fissure seepage and water level fluctuation in reservoir are regarded as the variable boundary condition,thus implementing the coupling analysis for pore and fissure seepage flow field.Typical example computational results show that a coupled fluid flow and stress computation model of dual media based on continuum-medium distinct element method is very effective for the analysis of reservoir ancient landslide.
来源 岩石力学与工程学报 ,2011,30(5):951-959 【核心库】
关键词 数值模型 ; 基于连续介质离散元 ; 双重介质模型 ; 渗流应力耦合 ; 动态松弛技术
地址

中国科学院力学研究所, 北京, 100190

语种 中文
文献类型 研究性论文
ISSN 1000-6915
学科 数学
基金 国家973计划
文献收藏号 CSCD:4206296

参考文献 共 19 共1页

1.  QI S W. Characteristics,mechanism and development tendency of deformation of Maoping landslide after commission of Geheyan reservoir on the Qingjiang River,Hubei Province,China. Engineering Geology,2006,86(1):37-51 被引 9    
2.  YAN F Z. Deformation behavior of ancient landslides on Qingjiang River after impoundment of the reservoir. Proceedings of the 6th Symposium on Rock Mechanics and Engineering,2000:543-546 被引 1    
3.  GOKCEOGLU C. The 17 March 2005 Kuzulu landslide(Sivas,Turkey)and landslide-susceptibility map of its near vicinity. Engineering Geology,2005,81(1):65-83 被引 9    
4.  GRIFFITHS D V. Slope stability analysis by finite elements. Geotechnique,1999,49(3):387-403 被引 465    
5.  MAO S H. Strength reduction FEM in stability analysis of soil slopes subjected to transient unsaturated seepage. Computers and Geotechnics,2009,36(1/2):93-101 被引 1    
6.  JUANG C H. Stability analysis of existing slopes considering uncertainty. Engineering Geology,1998,49(2):111-122 被引 9    
7.  刘耀儒. 基于双重孔隙介质模型的渗流-应力耦合并行数值分析. 岩石力学与工程学报,2007,26(4):705-711 被引 10    
8.  黎水泉. 双重孔隙介质非线性流固耦合渗流. 力学季刊,2000,21(1):96-101 被引 10    
9.  孔亮. 非饱和流固耦合双重孔隙介质模型控制方程. 西安石油大学学报:自然科学版,2007,22(2):163-165 被引 5    
10.  BARENBLATT G I. Basic concepts in the theory of seepage of homogeneous liquids in fissured rocks. Journal of Applied Mathematics and Mechanics,1960,24(5):852-864 被引 89    
11.  REICHENBERGER V. A mixeddimensional finite volume method for two-phase flow in fractured porous media. Advances in Water Resources,2006,29(7):1020-1036 被引 6    
12.  RUTQVIST J. A modeling approach for analysis of coupled multiphase fluid flow,heat transfer,and deformation in fractured porous rock. International Journal of Rock Mechanics and Mining Sciences,2002,39(4):429-442 被引 64    
13.  WARREN J E. The behavior of naturally fractured reservoirs. Society of Petroleum Engineers Journal,1963,3(3):245-255 被引 194    
14.  李广信. 高等土力学,2004:194-195 被引 2    
15.  党发宁. 有自由面渗流分析的变单元渗透系数法. 西北水力发电,2004,20(1):1-3 被引 7    
16.  柴军瑞. 岩体中裂隙水流对裂隙壁的双重力学效应. 岩土力学,2003,24(4):514-517 被引 9    
17.  蔡美峰. 岩石力学与工程,2002:482-483 被引 2    
18.  胡冉. 基于变分不等式法的渗流有限元分析及程序设计. 水电能源科学,2009,27(4):54-57 被引 1    
19.  袁中友. 蓄水和水位变动对三峡库区崩塌滑坡的影响及对策. 热带地理,2003,23(1):30-34 被引 7    
引证文献 10

1 李世海 水电能源开发中的关键工程地质体力学问题 中国科学. 物理学, 力学, 天文学,2013,43(12):1602-1616
被引 5

2 王理想 一种中心型有限体积孔隙-裂隙渗流求解方法及其OpenMP并行化 岩石力学与工程学报,2015,34(5):865-875
被引 5

显示所有10篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护:中国科学院文献情报中心
地址:北京中关村北四环西路33号 邮政编码:100190 联系电话:(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号