双重孔隙介质的抗剪强度及弹塑性有限元分析

doi:10.13722/j.cnki.jrme.2014.0247

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Abstract Considering the connectivity rate and spacing of fractures，volume fractions of pore matrix and fracture material in a representative element volume，a method of determining the cohesion and internal friction angle which vary with direction in a dual porosity medium was suggested，and the equations established for calculating the values of and were proved to be reasonable. Introducing the method solving and values into the elasto-plastic finite element method(FEM) code，the computations were carried out for a change obviously，the plastic zones accelerate development，and the distributions of displacements，stresses and plastic zones change from symmetric ones to asymmetric ones，as well as the anisotropy of surrounding rock mass displays more significantly；but with the increase of fracture spacing，the dynamic state of surrounding is just the reverse of what in the case of increasing fracture connectivity rate.

Key words： rock mechanics dual porosity medium cohesion internal friction angle elasto-plasticity FEM analysis

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2014.0247 OR http://www.rockmech.org/EN/Y2015/V34/Is1/3037

	[3]杨天鸿，唐春安，梁正召，等. 脆性岩石破裂过程损伤与渗流耦合数值模型研究[J]. 力学学报，2003，35(5)：533-541.(YANG Tianhong，TANG Chun?an，LIANG Zhengzhao，et al. Study on model of damage and flow coupling in brittle rock failure process[J]. Acta Mechanica Sinica，2003，35(5)：533-541.(in Chinese)) " target="_blank">
	[7]王媛，徐志英，速宝玉. 复杂裂隙岩体渗流与应力弹塑性全耦合分析[J]. 岩石力学与工程学报，2000，19(2)：177-181.(WANG Yuan，XU Zhiying，SU Baoyu. Complete coupled analysis of fluid flow and elastoplastic stress in complicated fractured rock masses[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19(2)：177-181.(in Chinese))
	[13]WU W，LI X，CHARLIER R，et al. A thermo-hydro-mechanical constitutive model and its numerical modelling for unsaturated soils[J]. Computers and Geotechnics，2004，31(2)：155-167.
	[17]华若丹. 利用隐伏断层定量预测公式确定断层的延展范围[J]. 江苏煤炭，1996，(4)：41-42.(HUA Ruodan . Using quantitative prediction formula for hidden fault to determine the fault extends[J]. Jiangsu coal，1996，(4)：41-42. (in Chinese)) " target="_blank">
	[21]张玉军，刘谊平. 层状岩体抗剪强度的方向性及剪切破坏面的确定[J]. 岩土力学，2001，22(3)：254-257.(ZHANG Yujun，LIU Yiping. Anisotropy of shear strength of layered rocks and determination of shear failure plane[J]. Rock and Soil Mechanics，2001，22(3)：254-257.(in Chinese)) " target="_blank">
[1]	张玉军. 遍有节理岩体的双重孔隙介质热-水-应力耦合模型及有限元分析[J]. 岩石力学与工程学报，2009，28(5)：947-955.(ZHANG Yujun. Coupled thermo-hydro-mechanical model and finite element analyses of dual-porosity fractured medium for ubiquitous-joint rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(5)：947-955.(in Chinese))
	[5]郑少河，朱维申. 裂隙岩体渗流损伤耦合模型的理论分析[J]. 岩石力学与工程学报，2001，20(2)：156-159.(ZHENG Shaohe，ZHU Weishen. Theoretical analysis on a coupled seepage-damage model of fractured rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2001，20(2)：156-159.(in Chinese))
	[15]黎水泉. 弹脆塑性双重孔隙介质油藏流固耦合数值模拟[博士学位论文][D]. 北京：清华大学，2000.(LI Shuiquan. Fully coupled numerical simulation of fractured porous media with elasto-brittle-plastic deformation[Ph. D. Thesis[D]. Beijing：Tsinghua University，2000.(in Chinese)) " target="_blank">
	[19]ATTEWELL P B，SANDFORD M R. Intrinsic shear strength of a brittle，anisotropic rock-I：experimental and mechanical interpretation[J]. International Journal of Rock Mechanics and Mining Sciences，1974，11(11)：423-430. " target="_blank">
	[2]ELSWORTH D，BAI M. Flow-eformation response of dual-porosity media[J]. Journal of Geotechnical Engineering，1992，118(1)：107-124. " target="_blank">
	[4]唐春安，马天辉，李连崇，等. 高放废料地质处置中多场耦合作用下的岩石破裂问题[J]. 岩石力学与工程学报，2007，26(增2)：3 932- 3 938.(TANG Chun?an，MA Tianhui，LI Lianchong，et al. Rock failure issues in geological disposal of high-level radioactive wastes under multi-field coupling function[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.2)：3 932-3 938.(in Chinese)) " target="_blank">
	[6]朱珍德，孙钧. 裂隙岩体非稳态渗流场与损伤场耦合分析模型[J]. 四川联合大学学报：工程科学版，1999，3(4)：73-80.(ZHU Zhende，SUN Jun. Coupling model of unstable seepage field and damaging field of fractured rock mass[J]. Journal of Sichuan Union University：Engineering Science，1999，3(4)：73-80.(in Chinese)) " target="_blank">
	[8]盛金昌，速宝玉，王媛，等. 裂隙岩体渗流-弹塑性应力耦合分析[J]. 岩石力学与工程学报，2000，19(3)：304-309.(SHENG Jinchang，SU Baoyu，WANG Yuan，et al. Coupling analysis of elasto-plastic stress and fluid flow in jointed rock masses[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19(3)：304-309. (in Chinese))
	[9]杨延毅，周维垣. 裂隙岩体的渗流-损伤耦合分析模型及其工程应用[J]. 水利学报，1991，5：19-27.(YANG Yanyi，ZHOU Weiyuan. A coupled seepage-damage analysis model for jointed rock masses and its application to rock engineering[J]. Journal of Hydraulic Engineering，1991，5：19-27.(in Chinese)) " target="_blank">
	[12]李荣涛，李锡夔. 高温下混凝土化学塑性-损伤耦合本构模拟及破坏分析[J]. 应用力学学报，2008，25(1)：51-56.(LI Rongtao，LI Xikui. Coupled chemo-elastoplastic-damage constitutive model of concrete at high temperature and failure analysis[J]. Chinese Journal of Applied Mechanics，2008，25(1)：51-56.(in Chinese)) " target="_blank">
	[14]HUECKEL T，PELLEGRINI R，OLMO C. A constitutive study of thermoelasto-plasticity of deep carbonatic clays[J]. International Journal for Numerical and Analytical Methods in Geomechanics，1998，22(7)：549-574. " target="_blank">
	[16]张玉军，杨朝帅，琚晓冬. 一种确定双重孔隙介质黏聚力与内摩擦角的方法及其有限元分析[J]. 中国科学：技术科学，2014，44(2)：182-188.(ZHANG Yujun，YANG Chaoshuai，JU Xiaodong. A method for determining cohesion and internal friction angle of dual- pore-fracture medium and the relative FEM analyses[J]. Scientia Sinica Techologia Sciences，2014，44(2)：182-188.(in Chinese)) " target="_blank">
	[18]ELSWORTH D，MAI M. Flow-deformation response of dual-porosity media[J]. Journal of Geotechnical Engineering，1992，118(1)：107-124. " target="_blank">
	[20]张玉军，唐仪兴. 考虑层状岩体强度异向性的地下洞室平面有限元分析[J]. 岩土工程学报，1999，21(3)：307-310.(ZHANG Yujun，TANG Yixing. 2D FEM analysis for an underground opening considering the strength anisotropy of the layered rock mass[J]. Chinese Journal of Geotechnical Engineering，1999，21(3)：307-310.(in Chinese)) " target="_blank">
	[10]刘泽佳，李锡夔. 非饱和多孔介质中混合元法的化学-热-渗流-力学耦合的本构模拟[J]. 计算力学学报，2007，24(4)：397-402. (LIU Zejia，LI Xikui. The coupled chemo-thermo-hydro-mechanical constitutive modeling for the mixed finite element of unsaturated porous media[J]. Chinese Journal of Computational Mechanics，2007，24(4)：397-402.(in Chinese)) " target="_blank">
	[11]刘泽佳，李锡夔，武文华. 多孔介质中化学-热-水力-力学耦合过程本构模型和数值模拟[J]. 岩土工程学报，2004，26(6)：797-803.(LIU Zejia，LI Xikui，WU Wenhua. A constitutive model and numerical simulation for coupled chemo-thermo-hydro-mechanical process in porous media[J]. Chinese Journal of Geotechnical Engineering，2004，26(6)：797-803.(in Chinese))