软硬互层状岩体局部区域的细观非均匀特性研究

doi:10.13722/j.cnki.jrme.2017.1165

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摘要

以锦屏工程地下厂房区典型软硬互层状岩体为研究对象，基于区域生长算法的图像分割技术表征岩体局部区域的细观结构特征，探讨获取区域生长算法中生长参数的方法；采用FLAC^3D差分程序，以比例关系映射方法建立与软硬互层状岩体岩样相对应的细观尺度均匀化网格模型。在此基础上，实现各组分基元力学参数满足Weibull分布的细观概率模型。并以程序内嵌的fish语言，实现考虑岩体局部细观结构及组分材料非均匀性时基元的弹–脆–塑性本构关系，建立互层状岩体局部区域细观数值模型，进而以多种数值模拟方案考察细观非均匀性对岩体力学行为的影响。结果表明，软硬互层状岩体的细观非均匀特性对其变形特性、强度特征、声发射规律及累计损伤过程影响显著。

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	李昂1
	邵国建2
	孙阳1
	师后盖2
	苏静波1

关键词 ：岩石力学, 软硬互层状岩体, 区域生长算法, 生长参数, 细观概率模型, 细观非均匀特性

Abstract：

For the alternatively distributed soft and hard rockmass of Jinping underground carves，the technology of image segmentation based on region growing algorithm is employed to characterize the meso-structure features of local areas of rock mass，and the method for obtaining growth parameter in algorithm is discussed. A meso-scale homogeneous mesh model corresponding to the rock sample is established by using the FLAC^3Dprogram according to the proportional relation mapping method. On this basis，the mesoscopic probability model and elastic-brittle-plastic constitutive relation is realized for mechanical parameters of elements. Then，a mesoscopic numerical model of local region of stratified rock mass is established. And several numerical simulation schemes are used to investigate the influence of meso-inhomogeneity on rock mechanical properties. The results show that the meso-inhomogeneity of alternatively distributed soft and hard rockmass has remarkable influence on their deformation property，strength characteristic，acoustic emission law and cumulative damage process.

Key words： rock mechanics alternatively distributed soft and hard rockmass region growing algorithm growth parameter meso-scopic probability model meso-inhomogeneity

引用本文:

李昂1，邵国建2，孙阳1，师后盖2，苏静波1. 软硬互层状岩体局部区域的细观非均匀特性研究[J]. 岩石力学与工程学报, 2017, 36(S2): 3852-3863.
LI Ang1，SHAO Guojian2，SUN Yang1，SHI Hougai2，SU Jingbo1. Study on meso-inhomogeneity of local region of alternatively distributed soft and hard composite rockmass. , 2017, 36(S2): 3852-3863.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2017.1165 或 https://rockmech.whrsm.ac.cn/CN/Y2017/V36/IS2/3852

[1] 王思敬，黄鼎成. 工程地质世纪成就[M]. 北京：地质出版社， 2004：125–134.(WANG Sijing，HUANG Dingcheng. Century achievement of engineering geology in China[M]. Beijing：Geological Publishing House，2004：125–134.(in Chinese))

[2] 鲜学福，谭学术. 复合岩体力学理论及其应用[M]. 北京：煤炭工业出版社，1994： 119–131.(XIAN Xuefu，TAN Xueshu. The theory of composite rock mechanics and application[M]. Beijing：China Coal Industry Press，1994：119–131.(in Chinese))

[3] TIEN Y M，KUO M C. A failure criterion for transversely isotropic rocks[J]. International Journal of Rock Mechanics and Mining Sciences，2001，38(3)：399–412.

[4] TIEN Y M，KUO M C，JUANG C H. An experimental investigation of the failure mechanism of simulated transversely isotropic rocks[J]. International Journal of Rock Mechanics and Mining Sciences，2006，43(8)：1 163–1 181.

[5] 蒋昱州，朱杰兵，王瑞红. 软硬互层岩体卸荷蠕变力学特性试验研究[J]. 岩石力学与工程学报，2012，31(4)：778–784.(JIANG Yuzhou，ZHU Jiebing，WANG Ruihong. Experimental study of unloading creep mechanical properties of alternatively distributed soft and hard rockmass[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(4)：778–784.(in Chinese))

[1] 黄书岭，丁秀丽，邬爱清，等. 层状岩体多节理本构模型与试验验证[J]. 岩石力学与工程学报，2012，31(8)：1 627–1 635. (HUANG Shuling，DING Xiuli，WU Aiqing，et al. Study of multi-joint constitutive model of layered rock mass and experimental verification[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(8)：1 627–1 635.(in Chinese))

[2] GONZALEZ R C，WOODS R E. Digital image processing(third edition) [M]. Upper Saddle River，N J：Pearson Prentice Hall，2010：1–10.

[3] YUE Z Q，MORIN I. Digital image processing for aggregate orientation in asphalt concrete mixture[J]. Canadian Journal of Civil Engineering，1996，23(2)：480–489.

[4] CHEN S，YUE Z Q，THAM L G. Digital image-based numerical modeling method for prediction of inhomogeneous rock failure[J]. International Journal of Rock mechanics and Mining Sciences，2004，41(6)：939–957.

[5] 陈沙，岳中琦，谭国焕. 基于数字图像的非均质岩土工程材料的数值分析方法[J]. 岩土工程学报，2005，27(8)：958–964. (CHEN Sha，YUE Zhongqi，THAM L G. Digital image based numerical modeling method for heterogeneous geomaterials[J]. Chinese Journal of Geotechnical Engineering，2005，27(8)：958–964.(in Chinese))

[6] 秦武，杜成斌. 基于CT切片的三维混凝土细观层次力学建模[J]. 工程力学，2012，29(7)：186–193.(QIN Wu，DU Chengbin. Meso-level model of three-dimensional concrete based on the CT slices[J]. Engineering Mechanics，2012，29(7)：186–193.(in Chinese))

[7] 朱珍德，张勇，李术才，等. 用数字图像相关技术进行红砂岩细观裂纹损伤特性研究[J]. 岩石力学与工程学报，2005，24(7)：1 123–1 128.(ZHU Zhende，ZHANG Yong，LI Shucai，et. al. Studies on microcosmic crack damage properties of a red sandstone with digital image technique[J]. Chinese Journal of Rock Mechanics and Mining Sciences，2005，24(7)：1 123–1 128.(in Chinese))

[6] 朱泽奇，肖培伟，盛谦，等. 基于数字图像处理的非均质岩石材料破坏过程模拟[J]. 岩土力学，2011，32(12)：3 780–3 786. (ZHU Zeqi，XIAO Peiwei，SHENG Qian，et al. Numerical simulation of fracture propagation of heterogeneous rock material based on digital image processing[J]. Rock and Soil Mechanics，2011，32(12)：3 780–3 786.(in Chinese))

[7] 徐金明，黄大勇，朱洪昌. 基于细观组分实际分布的花岗岩宏细观参数关系[J]. 岩石力学与工程学报，2016，35(增1)：2 635–2 643. (XU Jinming，HUANG Dayong，ZHU Hongchang. Relations between macro-and meso-scopic mechanical parameters of granite based on actual distributions of mesocompositions[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(Supp.1)：2 635–2 643.(in Chinese))

[8] 张毓晋. 图像分割[M]. 北京：科学出版社，2001：67–70. (ZHANG Yujin. Image segmentation[M]. Beijing：Science Press，2001：67–70.(in Chinese))

[9] TANG C A，XU X H. Evolution and propagation of material defects and Kaiser effect function[J]. Journal of Seismological Research，1990，13(2)：203–213.

[10] TANG C A，KAISER P K. Numerical simulation of cumulative damage and seismic energy release during brittle rock failure-Part I：Fundamentals[J]. International Journal of Rock Mechanics and Mining Sciences，1998，35(2)：113–121.

[11] 邓荣贵，张倬元. 锦屏水电站坝区绿片岩结构及力学特性研究[J]. 成都理工学院学报，2001，28(1)：93–97.(DENG Ronggui，ZHANG Zhuoyuan. On the microstructure and mechanical properties of greenschist in the dam site of Jinping Hydropower Station[J]. Journal of Chengdu University of Technology，2001，28(1)：93–97.(in Chinese))

[12] 中国水电工程顾问集团公司成都勘测设计研究院. 雅砻江锦屏一级水电站可行性研究报告(3)：工程地质[R]. 成都：中国水电工程顾问集团公司成都勘测设计研究院，2003.(HydroChina Chengdu Engineering Corporation. The research report of check of dam site of Jinping I Hydropower Station at Yalong River(3)： engineering geology condition[R]. Chengdu：HydroChina Chengdu Engineering Corporation，2003.(in Chinese))

[13] 黄书岭. 高应力下脆性岩石的力学模型与工程应用研究[博士学位论文][D]. 武汉：中国科学院武汉岩土力学研究所，2008.(HUANG Shuling. Study of mechanical model of brittle rock under high stress condition and its engineering applications[Ph. D. Thesis][D]. Wuhan：Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，2008.(in Chinese))

[14] LI S C，LI G Y. Effect of heterogeneity on mechanical and acoustic emission characteristics of rock specimen[J]. Journal of Central South University of Technology，2010，17(5)：1 119–1 124.

[15] MOGI K. Study of elastic shocks caused by the fracture of heterogeneous materials and its relations to earthquake phenomena[J]. Bulletin of the Earthquake Reaserch Institute，1962，40(1)：125–173.

[16] 王士民，朱合华，冯夏庭，等. 细观非均匀性对脆性岩石材料宏观破坏形式的影响[J]. 岩土力学，2006，27(2)：224–227.(WANG Shimin，ZHU Hehua，FENG Xiating，et al. Influence of heterogeneity on macroscopical crack form of the brittle rock[J]. Rock and Soil Mechanics，2006，27(2)：224–227.(in Chinese))

[17] 于庆磊，杨天鸿，郑超，等. 岩石细观结构对其变形强度影响的数值分析[J]. 岩土力学，2011，32(11)：3 468–3 472.(YU Qinglei，YANG Tianhong，ZHENG Chao，et al. Numerical analysis of influence of rock mesostructure on its deformation and strength[J]. Rock and Soil Mechanics，2011，32(11)：3 468–3 472. (in Chinese))

[18] 朱泽奇，盛谦，李红霞. 多组贯穿节理岩体正交各向异性变形参数研究[J]. 岩石力学与工程学报，2013，32(增2)：3 022–3 027. (ZHU Zeqi，SHENG Qian，LI Hongxia. Study of orthogonal anisotropy deformation parameters of rock mass with multiple persistent crack sets[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(Supp.2)：3 022–3 027.(in Chinese))

[19] 李昂，邵国建，范华林，等. 基于细观层次的软硬互层状复合岩体力学特性研究[J]. 岩石力学与工程学报，2014，33(增1)：3 042–3 049.(LI Ang，SHAO Guojian，FAN Hualin et al. Investigation of mechanical properties of soft and hard interbedded composite rock mass based on meso-level heterogeneity[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(Supp. 1)：3 042–3 049. (in Chinese))