黎崇金等：含孔洞大理岩破坏特性的颗粒流分析 *1801· 洞试样为对角剪切破坏. Zhao X D,Zhang H X,Zhu W C.Fracture evolution around pre- (3)岩石微观结构的非均质性导致了试样微观强 existing cylindrical cavities in brittle rocks under uniaxial compres- 度的非均匀性，从而造成试样宏观裂纹的非对称性；试 sion.T Nonferr Metal Soc,2014,24(3)806 1o] Wang S Y,Sloan S W,Tang CA.Three-dimensional numerical 样内部的矿物结核影响了裂纹的扩展路径，从而改变 investigations of the failure mechanism of a rock disc with a cen- 试样的宏观破坏模式. tral or eccentric hole.Rock Mech Rock Eng,2014,47(6):2117 (4)在PFC2D模型中，颗粒间的黏结力超过该处 [11]Zhang S R,Sun B,Wang C,et al.Discrete element analysis of 的黏结强度后，黏结断裂并产生微观裂纹，相邻微观裂 failure process of hard rock with a pre-existing circular opening. 纹相互搭接形成宏观裂纹，微裂纹的萌生与扩展过程 Chin J Rock Mech Eng,2012,31 (Suppl 2)3855 伴随着应力集中区的释放与转移：位移场分析表明，含 (张社荣，孙博，王超，等.含孔洞硬岩破坏过程的离散元分 析.岩石力学与工程学报，2012,31（增刊2）：3855) 孔洞试样的宏观裂纹主要有3种：孔洞左右边缘的颗 [12]Li D Y,Li X B,Li C L,et al.Experimental and numerical 粒剥落，孔洞上下端的拉伸裂纹，以及试样对角方向的 studies of mechanical response of plate-shape granite samples 压剪裂纹 containing pre-fabricated holes under uniaxial compression.Chin J Rock Mech Eng,2011,30(6):1198 参考文献 (李地元，李夕兵，李春林，等.单轴压缩下含预制孔洞板 [Germanovich L N,Dyskin A V.Fracture mechanisms and insta- 状花岗岩试样力学响应的试验和数值研究.岩石力学与工 bility of openings in compression.Int Rock Mech Min Sci,2000, 程学报，2011,30(6)：1198) 37(12):263 [13]Li D Y,Cheng T J,Zhou T,et al.Experimental study of the dy- 2]Fakhimi A,Carvalho F,Ishida T,et al.Simulation of failure namic strength and fracturing characteristics of marble specimens around a circular opening in rock.Int J Rock Mech Min Sci, with a single hole under impact loading.Chin Rock Mech Eng, 2002,39(4):507 2015,34(2):249 B3]Zhu W C,Liu J,Tang CA,et al.Simulation of progressive frac- (李地元，成腾蛟，周韬，等.冲击载荷作用下含孔洞大理岩 turing processes around underground excavations under biaxial 动态力学破坏特性试验研究.岩石力学与工程学报，2015， compression.Tunn Undergr Space Technol,2005,20(3):231 34(2):249) [4]Wong R H C,Lin P,Tang C A.Experimental and numerical [14]Li X B,Weng L,Xie X F,et al.Study on the degradation of study on splitting failure of brittle solids containing single pore un- hard rock with a pre-existing opening under static-ynamic load- der uniaxial compression.Mech Mater,2006,38(12):142 ings using nuclear magnetic resonance technique.Chin Rock [5]Wang S H,Lee C I,Ranjith P G,et al.Modeling the effects of Mech Eng,2015,34(10):1985 heterogeneity and anisotropy on the excavation damaged/disturbed (李夕兵，翁磊，谢晓锋，等.动静载荷作用下含孔洞硬岩损 zone (EDZ).Rock Mech Rock Eng,2009,42(2):229 伤演化的核磁共振特性试验研究.岩石力学与工程学报， [6]Yang S Q,Li C H,Qu T.Investigations of crack expansion in 2015,34(10):1985) marble having a single pre-existing hole:experiment and simula- 05] Read R S.20 years of excavation response studies at AECL's Un- tions.J China Unir Min Technol,2009,38(6):774 derground Research Laboratory.Int Rock Mech Min Sci,2004, (杨圣奇，吕朝辉，渠涛.含单个孔洞大理岩裂纹扩展细观试 41(8):1251 验和模拟.中国矿业大学学报，2009,38(6)：774) 16 Tang C A,Lin P,Wong R H C,et al.Analysis of crack coales- Yang S Q,Liu X R,Li Y S.Experimental analysis of mechanical cence in rock-ike materials containing three flaws-Part II:nu- behavior of sandstone containing hole and fissure under uniaxial merical approach.Int J Rock Mech Min Sci,2001,38(7):925 compression.Chin J Rock Mech Eng,2012,31 (Suppl 2):3539 7] Zhang X P,Wong L N Y.Crackingprocesses in rock-ike materi- (杨圣奇，刘相如，李玉寿.单轴压缩下含孔洞裂隙砂岩力学 al containing a single flaw under uniaxial compression:a numeri- 特性试验分析.岩石力学与工程学报，2012,31（增刊2）： cal study based on parallel bonded-particle model approach.Rock 3539) Mech Rock Eng,2012,45(5)711 8]Liu Z W,Li Y H.Experimental investigation on the deformation [18]Cundall P A,Strack O D L.A discrete numerical mode for gran- and crack behavior of rock specimen with a hole undergoing uniax- ular assemblies.Geotechnique,1979,29 (1):47 ial compression load.Eng Mech,2010,27(8):133 [19]Cho N,Martin C D,Sego D C.A clumped particle model for (刘招伟，李元海.含孔洞岩石单轴压缩下变形破裂规律的实 rock.Int J Rock Mech Min Sci,2007,44(7):997 验研究.工程力学，2010,27(8)：133)黎崇金等: 含孔洞大理岩破坏特性的颗粒流分析 洞试样为对角剪切破坏． ( 3) 岩石微观结构的非均质性导致了试样微观强 度的非均匀性，从而造成试样宏观裂纹的非对称性; 试 样内部的矿物结核影响了裂纹的扩展路径，从而改变 试样的宏观破坏模式． ( 4) 在 PFC2D 模型中，颗粒间的黏结力超过该处 的黏结强度后，黏结断裂并产生微观裂纹，相邻微观裂 纹相互搭接形成宏观裂纹，微裂纹的萌生与扩展过程 伴随着应力集中区的释放与转移; 位移场分析表明，含 孔洞试样的宏观裂纹主要有 3 种: 孔洞左右边缘的颗 粒剥落，孔洞上下端的拉伸裂纹，以及试样对角方向的 压剪裂纹． 参 考 文 献 ［1］ Germanovich L N，Dyskin A V． Fracture mechanisms and insta￾bility of openings in compression． Int J Ｒock Mech Min Sci，2000， 37( 1-2) : 263 ［2］ Fakhimi A，Carvalho F，Ishida T，et al． Simulation of failure around a circular opening in rock． Int J Ｒock Mech Min Sci， 2002，39( 4) : 507 ［3］ Zhu W C，Liu J，Tang C A，et al． Simulation of progressive frac￾turing processes around underground excavations under biaxial compression． Tunn Undergr Space Technol，2005，20( 3) : 231 ［4］ Wong Ｒ H C，Lin P，Tang C A． Experimental and numerical study on splitting failure of brittle solids containing single pore un￾der uniaxial compression． Mech Mater，2006，38( 1-2) : 142 ［5］ Wang S H，Lee C I，Ｒanjith P G，et al． Modeling the effects of heterogeneity and anisotropy on the excavation damaged / disturbed zone ( EDZ) ． Ｒock Mech Ｒock Eng，2009，42( 2) : 229 ［6］ Yang S Q，Lü C H，Qu T． Investigations of crack expansion in marble having a single pre-existing hole: experiment and simula￾tions． J China Univ Min Technol，2009，38( 6) : 774 ( 杨圣奇，吕朝辉，渠涛． 含单个孔洞大理岩裂纹扩展细观试 验和模拟． 中国矿业大学学报，2009，38( 6) : 774) ［7］ Yang S Q，Liu X Ｒ，Li Y S． Experimental analysis of mechanical behavior of sandstone containing hole and fissure under uniaxial compression． Chin J Ｒock Mech Eng，2012，31( Suppl 2) : 3539 ( 杨圣奇，刘相如，李玉寿． 单轴压缩下含孔洞裂隙砂岩力学 特性试验分析． 岩石力学与工程学报，2012，31 ( 增刊 2) : 3539) ［8］ Liu Z W，Li Y H． Experimental investigation on the deformation and crack behavior of rock specimen with a hole undergoing uniax￾ial compression load． Eng Mech，2010，27( 8) : 133 ( 刘招伟，李元海． 含孔洞岩石单轴压缩下变形破裂规律的实 验研究． 工程力学，2010，27( 8) : 133) ［9］ Zhao X D，Zhang H X，Zhu W C． Fracture evolution around pre￾existing cylindrical cavities in brittle rocks under uniaxial compres￾sion． T Nonferr Metal Soc，2014，24( 3) : 806 ［10］ Wang S Y，Sloan S W，Tang C A． Three-dimensional numerical investigations of the failure mechanism of a rock disc with a cen￾tral or eccentric hole． Ｒock Mech Ｒock Eng，2014，47( 6) : 2117 ［11］ Zhang S Ｒ，Sun B，Wang C，et al． Discrete element analysis of failure process of hard rock with a pre-existing circular opening． Chin J Ｒock Mech Eng，2012，31( Suppl 2) : 3855 ( 张社荣，孙博，王超，等． 含孔洞硬岩破坏过程的离散元分 析． 岩石力学与工程学报，2012，31( 增刊 2) : 3855) ［12］ Li D Y，Li X B，Li C L，et al． Experimental and numerical studies of mechanical response of plate-shape granite samples containing pre-fabricated holes under uniaxial compression． Chin J Ｒock Mech Eng，2011，30( 6) : 1198 ( 李地元，李夕兵，李春林，等． 单轴压缩下含预制孔洞板 状花岗岩试样力学响应的试验和数值研究． 岩石力学与工 程学报，2011，30( 6) : 1198) ［13］ Li D Y，Cheng T J，Zhou T，et al． Experimental study of the dy￾namic strength and fracturing characteristics of marble specimens with a single hole under impact loading． Chin J Ｒock Mech Eng， 2015，34( 2) : 249 ( 李地元，成腾蛟，周韬，等． 冲击载荷作用下含孔洞大理岩 动态力学破坏特性试验研究． 岩石力学与工程学报，2015， 34( 2) : 249) ［14］ Li X B，Weng L，Xie X F，et al． Study on the degradation of hard rock with a pre-existing opening under static-dynamic load￾ings using nuclear magnetic resonance technique． Chin J Ｒock Mech Eng，2015，34( 10) : 1985 ( 李夕兵，翁磊，谢晓锋，等． 动静载荷作用下含孔洞硬岩损 伤演化的核磁共振特性试验研究． 岩石力学与工程学报， 2015，34( 10) : 1985) ［15］ Ｒead Ｒ S． 20 years of excavation response studies at AECL's Un￾derground Ｒesearch Laboratory． Int J Ｒock Mech Min Sci，2004， 41( 8) : 1251 ［16］ Tang C A，Lin P，Wong Ｒ H C，et al． Analysis of crack coales￾cence in rock-like materials containing three flaws-Part II: nu￾merical approach． Int J Ｒock Mech Min Sci，2001，38( 7) : 925 ［17］ Zhang X P，Wong L N Y． Crackingprocesses in rock-like materi￾al containing a single flaw under uniaxial compression: a numeri￾cal study based on parallel bonded-particle model approach． Ｒock Mech Ｒock Eng，2012，45( 5) : 711 ［18］ Cundall P A，Strack O D L． A discrete numerical mode for gran￾ular assemblies． Geotechnique，1979，29( 1) : 47 ［19］ Cho N，Martin C D，Sego D C． A clumped particle model for rock． Int J Ｒock Mech Min Sci，2007，44( 7) : 997 · 1081 ·