等效岩体随机节理三维网络模型构建方法研究

摘要
图/表
参考文献(17)
相关文章 (15)

全文: PDF (1990 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要由于目前仍难以将建立的结构面网络模型直接应用于岩体力学行为的分析，构建反映节理真实空间状态的等效岩体模型是岩体工程稳定性分析与计算的研究基础。以内蒙古白云鄂博铁矿东矿为研究背景，通过现场节理测线法调查，运用概率统计理论对节理倾向、倾角、间距和迹长进行统计分析、偏差校正并建立概率分布模型。在此基础上，根据Monte Carlo随机模拟理论并采用Matlab软件，获取节理模拟数据，并通过OPEN GL三维可视化技术构建能充分反映工程岩体节理分布特征的等效岩体随机节理三维网络模型，模拟结果与实测数据具有良好的统计相似性。该研究成果可为等效岩体技术所利用，并为后续开展节理岩体变形特性、强度特性、尺寸效应、各向异性、表征单元体积(REV)、关键块体识别、开挖效应、破裂机理等量化分析研究奠定基础。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	吴顺川1
	周喻1
	2
	高永涛1
	MISRA A2

关键词 ：岩石力学, 等效岩体随机节理三维网络模型, 等效岩体技术, 概率统计, Monte Carlo随机模拟

Abstract：Because that it is hardly applicable for mechanical analysis of rock mass currently，equivalent rock mass model，which is constructed to reflect actual space status of joints，is the research foundation for stability analysis of rock mass engineering. Taking Baiyunebo eastern iron open pit in Inner Mongolia as research background，based on the field joint investigation by scanline，the dip direction，dip angle，spacing and trace length of field joints are statistically analyzed with bias correction；and then their corresponding probability distribution models are established by using probability statistics theory. Based on these work，Monte Carlo stochastic simulation theory and Matlab software are adopted to obtain simulated joints data. Based on OPEN GL technique，these data are then used to construct visual stochastic joints 3D-network model of equivalent rock mass，which reflects the distribution feature of field joints. The simulation result shows excellent statistical similarity with the measured data. These research achievements can be utilized by equivalent rock mass technique，and can lay a foundation for following quantitative research of rock mass property，such as deformation，strength，size effect，anisotropy，representative elemental volume(REV)，key block identification，excavation effect and fracture mechanism.

Key words： rock mechanics stochastic joints 3D-network model of equivalent rock mass equivalent rock mass technique probability statistics Monte Carlo stochastic simulation

引用本文:

吴顺川1，周喻1，2，高永涛1，MISRA A2. 等效岩体随机节理三维网络模型构建方法研究[J]. 岩石力学与工程学报, 2012, 31(S1): 3082-3090.
WU Shunchuan1，ZHOU Yu1，2，GAO Yongtao1，MISRA A2. RESEARCH ON CONSTRUCTION METHOD OF STOCHASTIC JOINTS 3D-NETWORK MODEL OF EQUIVALENT ROCK MASS. , 2012, 31(S1): 3082-3090.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2012/V31/IS1/3082

[1] 蔡美峰，何满潮，刘冬燕. 岩石力学与工程[M]. 北京：科学出版社，2002：75–76.(CAI Meifeng，HE Manchao，LIU Dongyan. Rock mechanics and engineering[M]. Beijing：Science Press，2002：75–76.(in Chinese))

[2] HUDSON J A，PRIEST S D. Discontinuity and rock mass geometry[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1979，16(6)：339–362.

[3] KULATILAKE P H S W，WU T H. Estimation of mean trace length of discontinuities[J]. Rock Mechanics and Rock Engineering，1984，17(4)：215–232.

[4] 陈剑平，肖树芳，王清. 随机不连续面三维网络计算机模拟原理[M]. 长春：东北师范大学出版社，1995：52–233.(CHEN Jianping，XIAO Shufang，WANG Qing. A principle of random discontinuities 3D network numerical modeling[M]. Changchun：Northeast Normal University Press，1995：52–233.(in Chinese))

[5] 潘别桐，徐光黎. 用统计窗法确定岩石节理规模[J]. 工程勘测，1990，(5)：16–20.(PAN Bietong，XU Guangli. Determination of scale of rock joints by statistic method[J]. Geotechnical Investigation and Surveying，1990，(5)：16–20.(in Chinese))

[6] ROBINSON P C. Connectivity of fracture systems—a percolation theory approach[J]. Journal of Physics A：Mathematical and General，1983，16(3)：605–614.

[7] 陈剑平. 岩体随机不连续面三维网络数值模拟技术[J]. 岩土工程学报，2001，23(4)：398–402.(CHEN Jianping. 3D network numerical modeling technique for random discontinuities of rock mass[J]. Chinese Journal of Geotechnical Engineering，2001，23(4)：398–402. (in Chinese))

[8] DOWD P A，MARTIN J A，XU C，et al. A three-dimensional fracture network data set for a block of granite[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(5)：811–818.

[9] XU C，DOWD P. A new computer code for discrete fracture network modeling[J]. Computers and Geosciences，2010，36(3)：292–301.

[10] 吴顺川，周喻，高利立，等. 等效岩体技术在岩体工程中的应用[J]. 岩石力学与工程学报，2010，29(7)：1 435–1 441.(WU Shunchuan，ZHOU Yu，GAO Lili，et al. Application of equivalent rock mass technique to rock mass engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(7)：1 435–1 441.(in Chinese))

[11] 吴顺川，周喻，高斌. 卸载岩爆试验及PFC^3D数值模拟研究[J]. 岩石力学与工程学报，2010，29(增2)：4 082–4 088.(WU Shunchuan，ZHOU Yu，GAO Bin. Study of unloading tests of rock burst and PFC^3D numerical simulation[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(Supp.2)：4 082–4 088.(in Chinese))

[12] SEN Z，KAZI A. Discontinuity spacing and RQD estimates from finite length scanlines[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1984，21(4)：203–212.

[13] PRIEST S D，HUDSON J A. Estimation of discontinuity spacing and trace length using scanline surveys[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1981，18(3)：183–197.

[14] ROBERTSON A M. The interpretation of geological factors for use in slope theory[C]// RENSBURG P W J ed. Symposium on Planning Open Pit Mines. Balkema，South Africa：[s.n.]，1970：55–71.

[15] 陈征宙，胡伏生，方磊，等. 岩体节理网络模拟技术研究[J]. 岩土工程学报，1998，20(1)：22–25.(CHEN Zhengzhou，HU Fusheng，FANG Lei，et al. Technique for simulating joint network of rock masses[J]. Chinese Journal of Geotechnical Engineering，1998，20(1)：22–25.(in Chinese))

[16] 李新强，杨松青，汪小刚. 岩体随机结构面三维网络的生成和可视化技术[J]. 岩石力学与工程学报，2007，26(12)：2 564–2 569.(LI Xinqing，YANG Songqing，WANG Xiaogang. Generation and visualization technologies of three-dimensional network of rock mass stochastic structural plane[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(12)：2 564–2 569.(in Chinese))

[17] 伍法权，王思敬，宋胜武，等. 岩体力学中的统计方法与理论[J]. 科学通讯，1993，38(15)：1 345–1 354.(WU Faquan，WANG Sijing，SONG Shengwu，et al. Statistic method and theory of rockmass mechanics[J]. Chinese Science Bulletin，1993，38(15)：1 345–1 354. (in Chinese))