柱状节理几何参数对硐室稳定性影响的DDA分析

doi:10.13722/j.cnki.jrme.2014.1407

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摘要柱状节理岩体几何特征的复杂性为评价柱状节理硐室的稳定性和破坏模式带来了极大的困难，以柱内陡倾角隐节理面为例，该类型节理的存在导致节理密度增大，围岩力学性质被削弱，但同时该节理面的镶嵌特征又十分明显，增强了围岩力学性质。为进一步认识和评价柱状节理岩体几何参数对硐室稳定性的影响，在深入分析其几何分布特征的基础上，采用DDA深入研究这些几何特征对柱状节理硐室稳定性的影响，并以此为基础，对柱状节理岩体的破坏模式进行探讨。研究结果表明：(1) 保持柱内近水平隐节理面的倾角不变，当柱间节理面与水平隐节理面夹角小于20°时，硐室稳定性很好；夹角为90°时，硐室稳定性最差；当柱间节理面与柱内近水平隐节理面节理倾角组合为0°和90°时，顶拱的稳定性最差。(2) 节理间距对柱状节理硐室稳定性的影响主要体现在节理间距绝对值和节理间距比两方面，对于节理间距比，随着比值增大，硐室越稳定，反之亦然；对于节理间距绝对值，随着其增大，硐室越稳定，并且增加到一定程度会形成不可动块体，硐室稳定性大大增加。(3) 柱状节理硐室破坏模式为：首先是部分被柱内陡倾角隐节理所切割裸露在外的小柱体首先发生张拉破坏，而后沿柱间节理面发生剪切破坏，最后沿柱内近水平隐节理面开始向临空面垮落；同时顶拱节理面在切向应力作用下也会发生一定的破坏。

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	郝宪杰
	冯夏庭
	陈炳瑞
	江权

关键词 ：岩石力学, 柱状节理, 几何特征, DDA, 破坏模式

Abstract：The complexity geometric features of columnar joint bring great difficulties for the evaluation of tunnel stability and failure pattern. Taking the plumose joint inside column as an example，on one hand，the mechanical properties is weakened for the existence of this type of joint，which leading to the increase of joint density，and on the other hand，the inlay characteristic of this type of joint is also very obviously，which could enhance its mechanical properties. Based on the in-situ investigation of the geometric distribution of columnar joints，the impact of these geometric features on the stability of columnar joints is studied using DDA and the failure pattern of columnar joints is discussed. The research results shows that：(1) When the angle of joint between the column and horizontal joint inside column is 90°，the tunnel stability is the worst，and when the angle is less than 20°，the tunnel stability is well. (2) The effects of joint space on the stability of underground tunnel mainly include two aspects，the ratio of joint spacing and the absolute value of the joint spacing. For the joint spacing ratio，with the ratio increased，the tunnel is more stable，and vice versa. For the absolute value of joint spacing，with increasing of it，the stress acting on the block is decreased，and the tunnel is more stable. (3) The joints inside the columnar joints are so well developed that the columnar will first break inside the column，and then it will break between columns. At last，the small columnar would collapse under the effect of gravity and excavation disturbance. In addition，for the crosswise joints are so well developed，large scale of collapse would happen in severe cases. The columnar joints at arch would also break under the tangential stress.

Key words： rock mechanics columnar jointed rock mass geometric features DDA failure pattern

引用本文:

郝宪杰，冯夏庭，陈炳瑞，江权. 柱状节理几何参数对硐室稳定性影响的DDA分析[J]. 岩石力学与工程学报, 2016, 35(S1): 2593-2602.
HAO Xianjie，FENG Xiating，CHEN Bingrui，JIANG Quan. Analysis of influence of geometric parameters of columnar joints on tunnel stability by DDA. , 2016, 35(S1): 2593-2602.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.1407 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS1/2593

[1]	徐松年. 浙江中生代酸性火山岩柱状节理构造的发现及其地质意义[J]. 岩石学报，1995，11(3)：325-332.(XU Songnian. Discovery of columnar joint structure of mesozolc acidic volcanic rocks in Zhejiang province and its geologicalsignificance[J]. Acta Petrologica Sinica，1995，11(3)：325-332.(in Chinese))
[2]	石安池，唐鸣发，周其健. 金沙江白鹤滩水电站柱状节理玄武岩岩体变形特性研究[J]. 岩石力学与工程学报，2008，27(10)：2 079- 2 086.(SHI Anchi，TANG Mingfa，ZHOU Qijian. Research of deformationcharacteristics of columnar jointed basalt at Baihetan hydropower station on Jinsha River[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(10)：2079-2086.(in Chinese))
[3]	徐卫亚，郑文棠，宁宇，等. 柱状节理坝基岩体三维各向异性数值分析[J]. 岩土力学，2010，31(3)：949-955.(XU Weiya，ZHENG Wentang，NING Yu，et al. 3D anisotropicnumerical analysis of rock mass with columnar joints fordam foundation[J]. Rock and Soil Mechanics，2010，31(3)：949-955. (in Chinese))
[4]	郑文棠，徐卫亚，宁宇，等. 节理玄武岩体变形模量的尺寸效应和各向异性[J]. 工程地质学报，2010，18(4)：559-565.(ZHENG Wentang，XU Weiya，NING Yu，et al. Scale effect and anisotropy of deformation modulus of closely jointed basaltic mass[J]. Journal of Engineering Geology，2010，18(4)：559-565.(in Chinese))
[5]	朱道建，杨林德，蔡永昌. 柱状节理岩体各向异性特性及尺寸效应研究[J]. 岩石力学与工程学报，2009，28(7)：1 405-1 414.(ZHU Daojian，YANG Linde，CAI Yongchang. Research on anisotropic characteristics and size effect of columnar jointed rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(7)：1405-1414.(in Chinese))
[6]	肖维民，邓荣贵，付小敏，等.单轴压缩条件下柱状节理岩体变形和强度各向异性模型试验研究[J]. 岩石力学与工程学报，2014，33(5)：957-963.(XIAO Weimin，DENG Ronggui，FU Xiaomin，et al. Model experiments on deformation and strength anisotropy of columnar jointed rock masses under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(5)：957-963.(in Chinese))
[7]	朱道建，杨林德，蔡永昌. 柱状节理岩体压缩破坏过程模拟及机制分析[J]. 岩石力学与工程学报，2009，28(4)：716-724.(ZHU Daojian，YANG Linde，CAI Yongchang. Simulation of compressive failure process of columnar jointed rock mass and its failure mechanism analysis[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(4)：716-724.(in Chinese))
[8]	郝宪杰，冯夏庭，江权，等．基于电镜扫描实验的柱状节理隧洞卸荷破坏机制研究[J]. 岩石力学与工程学报，2013，32(8)：1 647- 1 655.(HAO Xianjie，FENG Xiating，JIANG Quan，et al. Research on unloading failure mechanism of columnar jointed rock mass in tunnel based on scanning electron microscopy experiments[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(8)：1 647- 1 655.(in Chinese))
[9]	KIM K，CRAMER M L.Rock mass deformation properties of closely jointed basalt[J].Rock Mechanics，1982，12(1)：210-230.
[10]	江权，冯夏庭，樊义林，等. 柱状节理玄武岩各向异性特性的调查与试验研究[J]. 岩石力学与工程学报，2014，32(12)：2 527-2 535.(JIANG Quan，FENG Xiating，FAN Yilin，et al. In-situ and laboratory analysis of anisotropy prosperities for columnar jointing rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2014，32(12)：2 527-2 535.(in Chinese))
[11]	石安池，唐鸣发，单治钢，等. 金沙江白鹤滩水电站可行性研究：选坝阶段柱状节理玄武岩专题研究工程地质研究报告[R]. 杭州：中国水电顾问集团华东勘测设计研究院，2006.(SHI Anchi，TANG Mingfa，SHAN Zhigang，et al. Feasibility study of Baihetan Hydropower Station at the Jinsha River：research report seminar on engineering geological of columnar jointed basalt dam at the selection stage[R]. Hangzhou：HydroChina Huadong Engineering Corporation，2006.(in Chinese))
[12]	宁宇，徐卫亚，郑文棠，等.柱状节理岩体随机模拟及其表征单元体尺度研究[J]. 岩石力学与工程学报，2008，27(6)：1 202-1 208. (NING YU，XU Weiya，ZHENG Wentang，et al. Study of random simulation of columnar jointed rock mass and its representative elementary volume scale[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(6)：1 202-1 208.(in Chinese))
[13]	闫东旭，徐卫亚，王伟，等. 柱状节理岩体宏观等效弹性模量尺寸效应研究[J]. 岩土工程学报，2012，34(2)：243-250.(YAN Dongxu，XU Weiya，WANG Wei，et al. Research of size effect on equivalent elastic modulus of columnar jointed rock mass[J]. Chinese Journal of Geotechnical Engineering，2012，34(2)：243-250.(in Chinese))
[14]	钟世英，徐卫亚. 基于微结构张量理论的柱状节理岩体各向异性强度分析[J]. 岩土力学，2011，32(10)：3 081-3 084.(ZHONG Shiying，XU Weiya. Anisotropic failure criterion incorporating microstructure tensor for rock mass with columnar joints[J]. Rock and Soil Mechanics，2011，32(10)：3 081-3 084.(in Chinese))
[15]	陈旭，许模，康小兵，等. 玄武岩柱状节理成因性状研究及其对岩体质量的影响[J]. 地质找矿论丛，2008，23(3)：260-263. (CHEN Xu，XU Mo，KANG Xiaobing，et al. The research on genetic habit of columnar cleavage in basalt and the influence to the rock mass[J]. Geological Prospecting Review，2008，23(3)：260-263.(in Chinese))
[16]	狄圣杰，徐卫亚，王伟，等. 柱状节理岩体横观各向同性本构关系研究[J]. 中国矿业大学学报，2011，40(6)：881-887.(DI Shengjie，XU Weiya，WANG Wei，et al. Transversely isotropic constitutive properties of a columar jointed rock mass[J]. Journal of China Universiyt of Mining and Technology，2011，40(6)：881-887.(in Chinese))
[17]	唐鸣发. 金沙江白鹤滩水电站可行性研究阶段坝线选择工程地质勘察报告[R]. 杭州：中国水电顾问集团华东勘测设计研究院，2008.(TANG Mingfa. Reconnaissance report of place selection of dam of Baihetan Hydropower Station at the Jinsha River[R]. Hangzhou：Hydro-China Huadong Engineering Corporation，2008.(in Chinese))
[18]	BROWN E T，TROLLOPE D H. Strength of a model of jointed rock[J]. Journal of the Soil Mechanics and Foundations Division，1970，96(2)：685-704.
[19]	GOLDSTEIN M，GOOSEV B，PYROGOVSKY N，et al. Investigation of mechanical properties of cracked rock[C]// Proceedings of the 1st ISRMCongress. Lisbon：[s. n.]，1966：521-524.
[20]	LEE D H，CHOO S K，HONG C S，et al. A parametric study of the discontinuity in rock mass and its influence on tunnel behavior[C]// Proceedings of the 10thISRM Congress. [S. l.]：South African Institute of Mining and Metallurgy，2003：745-748.
[21]	索超峰，石益东，李军.节理特征对破碎围岩稳定性影响的模型试验[J]. 公路交通科技.2013，30(4)：82-87.(SUO Chaofeng，SHI Yidong，LI Jun.Model test of effect of joint characteristics on stability of broken rock mass[J].Journal of Highway and Transportation Research and Development，2013，30(4)：82-87.(in Chinese))
[22]	YEUNG M R，LEONG L L. Effects of joint attributes on tunnel stability[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1997，34(3)：3-4.
[23]	WHU J H，OHNISHI Y，NISHIYAMA S. Simulation of themechanical behavior of inclined rock mass during tunnel constructionusing discontinuous deformation analysis(DDA)[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(5)：731-743.
[24]	许崇帮，夏才初，朱合华. 双向八车道连拱隧道施工方案优化分析[J]. 岩石力学与工程学报，2009，28(1)：17-26.(XU Chongbang，XIA Caichu，ZHU Hehua. Optimum analysis for construction scheme of multiple-arch tunnel with eight traffic lanes[J]. Chinese Journal ofRock Mechanics and Engineering，2009，28(1)：17-26.(in Chinese))
[25]	刘刚，赵坚，宋宏伟，等. 断续节理方位对巷道稳定性的影响[J]. 煤炭学报 2008，33(8)：860-865.(LIU Gang，ZHAO Jian，SONG Hongwei，et al. Influence of intermittent joint orientation on roadway stability[J]. Journal of China Coal Society，2008，33(8)：860-865.(in Chinese))
[26]	齐银萍. 裂隙岩体三维损伤流变模型研究及工程应用[硕士学位论文][D]. 济南：山东大学，2012. (Qi Yinping. The 3D damage theology model analysis of the jointedrock and engineering application[M. S. Thesis][D]. Ji'nan：Shandong University，2012.(in Chinese))
[27]	郑颖人，王永甫，王成，等.节理岩体隧道的稳定分析与破坏规律探讨——隧道稳定性分析讲座之一[J].地下空间与工程学报，2011，7(4)：649-656.(ZHENG Yingren，WANG Yongfu，WANG Cheng，et al. Stability analysis and exploration of failure law of jointed rock tunnel—seminar on tunnel stability analysis[J]. Chinese Journal of Underground Space and Engineering，2011，7(4)：649-656.(in Chinese))
[28]	白世伟，任伟中，丰定祥，等. 共面闭合断续节理岩体强度特性直剪试验研究[J]. 岩土力学，1999，20(2)：10-16.(BAI Shiwei，REN Weizhong，FENG Dingxiang，et al. Research on the strength behavior of rock containing coplanar close intermittent joints bydirect shear test[J]. Rock and Soil Mechanics，1999，20(2)：10-16.(in Chinese))