基于通用椭圆盘模型及3DEC实现的节理岩质边坡稳定性分析

doi:10.13722/j.cnki.jrme.2022.0805

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摘要构建节理岩质边坡三维离散裂隙网络是目前研究岩体内部不连续面分布的常用方法。为克服基于传统Baecher圆盘和多边形模型构建边坡三维离散裂隙网络模型的不足，提出基于通用椭圆盘模型构建三维离散裂隙网络在3DEC软件中的实现方法，进而准确高效评估节理岩质边坡稳定性。同时，简要介绍通用椭圆盘模型的基本原理，包括多边形裂隙平面化、最优椭圆盘模型拟合和空间椭圆盘模型生成等。给出在3DEC软件中基于通用椭圆盘模型构建节理岩质边坡三维离散裂隙网络的流程。最后以某露天矿边坡为例，调查不连续面组椭圆盘特征参数(长短轴比和旋转角)对边坡稳定性的影响，对比通用椭圆盘模型与传统Baecher圆盘模型之间的差别。结果表明：提出方法有效避免了繁琐的fish语言编程与效率较低的3DEC软件内部建模过程，实现了在3DEC软件中快速基于通用椭圆盘模型构建三维离散裂隙网络及进行边坡稳定性分析，为高效评估三维复杂节理岩质边坡稳定性提供了一种重要的技术手段。此外，阐明了通用椭圆盘模型特征参数对边坡稳定性的影响规律，说明了在工程实际中运用通用椭圆盘模型构建边坡离散裂隙网络的必要性。

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	蒋水华1
	陈佳栋1
	邹宗毅1
	郑俊2
	黄劲松1

关键词 ：边坡工程, 节理岩质边坡, 稳定性分析, 通用椭圆盘模型, 三维离散裂隙网络, 3DEC软件

Abstract：Constructing three-dimensional discrete fracture network(DFN) is a commonly-used method to simulate the random distribution of discontinuities in the rock masses for jointed rock slopes. To overcome the shortcomings of traditional Baecher disc and polygon models in constructing three-dimensional DFN model of a slope，in this paper，a method for generating an universal elliptical disc(UED) model-based DFN in 3DEC software is proposed. Based on this，the stability of a jointed rock slope can be accurately and efficiently evaluated. At the same time，the basic principles of the UED model are briefly introduced，including planarization of polygon fractures，optimal elliptic disc model fitting and generation of spatial elliptical disc model，etc. The procedure of constructing the DFN model of jointed rock slopes based on the UED model in 3DEC software is presented. Finally，taking an open pit mine slope as the example，the influences of characteristic parameters(ratio of long axis to short axis and rotation angle) of elliptic disc model for discontinuity groups on slope stability are investigated，and the differences between the UED model and traditional Baecher disc model are compared. The results show that the proposed method can avoid tedious programming using fish language and inefficient internal modeling of 3DEC software，and quickly construct the three-dimensional DFN based on the UED model and conduct slope stability analysis in 3DEC software. It thereby provides an important technical means for efficiently evaluating the stability of three-dimensional complex jointed rock slopes. Additionally，the influences of the characteristic parameters of UED model on the slope stability are addressed. It is confirmed that it is of great necessity to construct the DFN of slope by using the UED model in engineering practice.

Key words： slope engineering jointed rock slope stability analysis universal elliptical disc model three-dimensional discrete fracture network(DFN) 3DEC software

引用本文:

蒋水华1，陈佳栋1，邹宗毅1，郑俊2，黄劲松1. 基于通用椭圆盘模型及3DEC实现的节理岩质边坡稳定性分析[J]. 岩石力学与工程学报, 2023, 42(7): 1610-1622.
JIANG Shuihua1，CHEN Jiadong1，ZOU Zongyi1，ZHENG Jun2，HUANG Jinsong1. Stability analysis of jointed rock slopes based on a universal elliptical disc model and its realization in 3DEC. , 2023, 42(7): 1610-1622.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2022.0805 或 http://rockmech.whrsm.ac.cn/CN/Y2023/V42/I7/1610

[6]	ZHENG J，GUO J，WANG J，et al. A universal elliptical disc(UED) model to represent natural rock fractures[J]. International Journal of Mining Science and Technology，2022，32(2)：261-270.
[16]	李航. 统计学习方法[M]. 2版北京，清华大学出版社，2019： 282-286.(LI Hang. Statistical learning methods[M]. 2 nd ed. Beijing：Tsinghua University Press，2019：282-286.(in Chinese))
[21]	郑颖人，赵尚毅. 有限元强度折减法在土坡与岩坡中的应用[J]. 岩石力学与工程学报，2004，23(19)：3 381-3 388.(ZHENG Yingren，ZHAO Shangyi. Application of strength reduction fem in soil and rock slope[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(19)：3 381-3 388.(in Chinese))
[23]	蒋水华，欧阳苏，冯泽文，等. 基于结构面参数概率分布更新的节理岩质边坡可靠性分析[J]. 岩土力学，2021，42(9)：2 589-2 599. (JIANG Shuihua，OUYANG Su，FENG Zewen，et al. Reliability analysis of jointed rock slopes using updated probability distributions of structural plane parameters[J]. Rock and Soil Mechanics，2021，42(9)：2 589-2 599.(in Chinese))
[26]	JIANG S H，LIU X，WANG Z Z，et al. Efficient sampling of the irregular probability distributions of geotechnical parameters for reliability analysis[J]. Structural Safety，2023，101：102309.
[28]	夏才初，肖维民，刘远明. 非贯通节理的岩桥弱化力学模型研究[J].岩石力学与工程学报，2010，29(8)：1 538-1 545.(XIA Caichu，XIAO Weimin，LIU Yuanming. Study of mechanical model for weakening process of discontinuous joint rock bridge[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(8)：1 538-1 545. (in Chinese))
[4]	岳攀，钟登华，吴含，等. 基于LHS的坝基岩体三维裂隙网络模拟[J]. 水力发电学报，2016，35(10)：93-102.(YUE Pan，ZHONG Denghua，WU Han，et al. Simulations of 3D fracture networks in rock mass of dam foundation using latin hypercube sampling[J]. Journal of Hydroelectric Engineering，2016，35(10)：93-102.(in Chinese))
[14]	GUO J，ZHENG J，LÜ Q，et al. A procedure to estimate the accuracy of circular and elliptical discs for representing the natural discontinuity facet in the discrete fracture network models[J]. Computers and Geotechnics，2020，121：103483.
[24]	ZHENG J，KULATILAKE P，SHU B，et al. Probabilistic block theory analysis for a rock slope at an open pit mine in USA[J]. Computers and Geotechnics，2014，61(3)：254-265.
[1]	周四宝. 水工岩体离散裂隙网络多面体模拟及其应用[硕士学位论文][D]. 天津：天津大学，2016.(ZHOU Sibao. Polyhedron simulation and application of discrete fracture network in hydraulic rock mass[M. S. Thesis][D]. Tianjing：Tianjing University，2016.(in Chinese))
[3]	BAECHER G B. Statistical analysis of rock mass fracturing[J]. Journal of the International Association for Mathematical Geology，1983，15(2)：329-348.
[5]	武娜，梁正召，宋文成，等. 等效岩体三维随机节理网络模型构建及其在两河口水电站中的应用[J]. 工程科学学报，2022，44(7)：1 282-1 290.(WU Na，LIANG Zhengzhao，SONG Wencheng，et al. Construction of a 3D equivalent rock random fracture network model and its application in the Lianghekou Hydropower Station[J]. Chinese Journal of Engineering，2022，44(7)：1 282-1 290.(in Chinese))
[7]	WARBURTON P M. Stereological interpretation of joint trace data：Influence of joint shape and implications for geological surveys[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1980，17(6)：305-316.
[8]	DERSHOWITZ W S，EINSTEIN H H. Characterizing rock joint geometry with joint system models[J]. Rock Mechanics and Rock Engineering，1988，21(1)：21-51.
[11]	IVANOVA V M，SOUSA R，MURRIHY B，et al. Mathematical algorithm development and parametric studies with the GEOFRAC three-dimensional stochastic model of natural rock fracture systems[J]. Computers and Geosciences，2014，67：100-109.
[13]	JIN W，GAO M，ZHANG R，et al. Analytical expressions for the size distribution function of elliptical joints[J]. International Journal of Rock Mechanics and Mining Sciences，2014，70：201-211.
[15]	GUO J，ZHENG J，LÜ Q，et al. Estimation of fracture size and azimuth in the universal elliptical disc model based on trace information[J]. Journal of Rock Mechanics and Geotechnical Engineering，2023. https://doi.org/10.1016/j.jrmge.2022.07.018[A1]
[17]	李伙穆，陈其明，颜庆陆. 不规则多边形面积计算公式的证明及应用[J]. 黎明职业大学学报，2008，(1)：35-40.(LI Huomu，CHEN Qiming，YAN Qinglu. Proof and application of calculation formula of irregular polygon area[J]. Journal of Liming Vocational University，2008，(1)：35-40.(in Chinese))
[18]	FOLEY J D，DAM A V，FEINER S K，et al. Computer graphics：principles and practice[M]. Massachusetts：Addison-Wesley Longman Publishing Co.，Inc.，1995：92-99.
[2]	韩帅，李明超，王刚. 基于控制圆法和迭代反演的岩体多边形裂隙网络模拟方法[J]. 岩石力学与工程学报，2019，38(8)：1 635-1 646.(HAN Shuai，LI Mingchao，WANG Gang. A polygonal DFN modeling approach based on the circle-controlled method and the iterative inversion algorithm[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(8)：1 635-1 646.(in Chinese))
[12]	ZHANG L，EINSTEIN H H，DERSHOWITZ W S. Stereological relationship between trace length and size distribution of elliptical discontinuities[J]. Géotechnique，2002，52(6)：419-433.
[22]	雷远见，王水林. 基于离散元的强度折减法分析岩质边坡稳定性[J]. 岩土力学，2006，27(10)：1 693-1 698.(Lei Yuanjian，WANG Shuilin. Stability analysis of jointed rock slope by strength reduction method based on UDEC[J]. Rock and Soil Mechanics，2006，27(10)：1 693-1 698.(in Chinese))
[9]	DECKER J B，MAULDON M，WANG X. Real-time determination of fracture size and shape using trace data on tunnel walls[J]. Tunnelling and Underground Space Technology，2006，21(3/4)：233-237.
[10]	李建勇，袁广祥，贾景超，等. 岩体裂隙多边形模拟算法研究[J]. 地下空间与工程学报，2015，11(增1)：149-153.(LI Jianyong，YUAN Guangxiang，JIA Jingchao，et al. Study on the simulation of rock fractures by polygons[J]. Chinese Journal of Underground Space and Engineering，2015，11(Supp.1)：149-153.(in Chinese))
[19]	程玉梅. 基于离散元强度折减法的高陡顺层岩质边坡稳定性分析[硕士学位论文][D]. 北京：中国地质大学(北京)，2017.(CHENG Yumei. Stability analysis of high and steep bedding rock slope based on discrete element strength reduction method[M. S. Thesis][D]. Beijing：China University of Geosciences(Beijing)，2017.(in Chinese))
[29]	INDRARATNA B，PREMADASA W，BROWN E，et al. Shear strength of rock joints influenced by compacted infill[J]. International Journal of Rock Mechanics and Mining Sciences，2014，70：296-307.
[20]	宁宇，徐卫亚，郑文棠. 应用离散元强度折减对复杂边坡进行稳定性分析[J]. 岩土力学，2007，28(增1)：569-574.(NING Yu，XU Weiya，ZHENG Wentang. Application in complicated high slope with strength reduction method based on discrete element method[J]. Rock and Soil Mechanics，2007，28(Supp.1)：569-574.(in Chinese))
[A1]	这篇论文目前还是在线出版没有卷号和期号！
[25]	ZHENG J，KULATILAKE P，SHU B. Improved probabilistic kinematic analysis procedure based on finite size discontinuities and its application to a rock slope at open pit mine in US[J]. International Journal of Geomechanics，2017，17(2)：04016052.
[27]	王双，陈征宙，吴强，等. 基于节理产状不确定性的边坡稳定性及敏感度分析[J]. 岩土工程学报，2013，35(2)：348-354.(WANG Shuang，CHEN Zhengzhou，WU Qiang，et al. Slope stability and sensitivity analysis based on uncertainty of joint occurrence[J]. Chinese Journal of Geotechnical Engineering，2013，35(2)：348-354.(in Chinese))