基于LiDAR技术的节理岩质边坡有限元分析

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Abstract Rock slope stability is subject to the dominant joint group. The joint system of outcrop rock-mass is automatically recognized and categorized based on point cloud data captured by terrestrial laser scanner(TLS) and fuzzy clustering method(FCM). Geometric spatial information and spatial position of several major joint groups can then be acquired. In order to determine the dominant joint group which controls rock slope stability，stereo graphic projection is applied to disclose the spatial position relationship between each major joint group and slope surface. The potential slip surface and corresponding factor of safety can be calculated by using strength reduction finite element method. The analysis results demonstrate that the slip surface mainly goes along the direction of dominant joint and extends from bottom to top. Shear failure commonly takes place along the joint fissure at the lower part of rock slope，while tensile fracture often occurs at the top part of rock slope.

Key words： slope engineering jointed rock slope three-dimensional laser scanning fuzzy clustering method stereo graphic projection analysis strength reduction finite element method(FEM)

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	Articles by authors
	SONG Jie
	HU Hui
	RAFIG Azzam

Cite this article:

SONG Jie,HU Hui,RAFIG Azzam. LIDAR-BASED FINITE ELEMENT SIMULATION FOR JOINTED ROCK SLOPE[J]. , 2013, 32(s2): 3972-3978.

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/3972

[1] 董秀君，黄润秋. 三维激光扫描技术在高陡边坡地质调查中的应用[J]. 岩石力学与工程学报，2006，25(增2)：3 629–3 635. (DONG Xiujun，HUANG Runqiu. Application of 3D laser scanning technology to geologic survey of high and steep slope[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.2)：3 629–3 635.(in Chinese))

[2] 何秉顺，丁留谦，孙平. 三维激光扫描系统在岩体结构面识别中的应用[J]. 中国水利水电科学研究院学报，2007，5(1)：43–48. (HE Bingshun，DING liuqian，SUN Ping. The application of 3D laser scanning technology in rock joint sets identification[J]. Journal of China Institute of Water Resources and Hydropower Research，2007，5(1)：43–48.( in Chinese))

[3] SLOB S，HACK R，VAN KNAPEN B，et al. A method for automated discontinuity analysis of rock slopes with 3D laser scanning[J]. Transportation Research Record，2005，1913：187–194.

[4] 刘昌军，丁留谦，孙东亚. 基于激光点云数据的的岩体结构面全自动模糊群聚分析及几何信息获取[J]. 岩石力学与工程学报，2011，30(2)：358–365.(LIU Changjun，DING Liuqian，SUN Dongya. Automatic fuzzy clustering analysis and geometric information acquisition of rock mass discontinuities based on laser point cloud data[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(2)：358–365.(in Chinese))

[5] LATO M，DIEDERICHS M S，HUTCHINSON D J，et al. Optimization of LiDAR scanning and processing for automated structural evaluation of discontinuities in rockmasses[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(1)：194–199.

[6] 连镇营，韩国城，孔宪京. 强度折减有限元法研究开挖边坡的稳定性[J]. 岩土工程学报，2001，23(4)：407-411.(LIAN Zhenying，HAN Guocheng，KONG Xianjing. Stability analysis of excavation by strength reduction FEM[J]. Chinese Journal of Geotechnical Engineering，2001，23(4)：407–411.(in Chinese))

[7] 赵尚毅，郑颖人，时为民，等. 用有限元强度折减法求边坡稳定安全系数[J]. 岩土工程学报，2002，24(3)：343–346.(ZHAO Shangyi，ZHENG Yingren，SHI Weiming，et al. Analysis of safety factor of slope by strength reduction FEM[J]. Chinese Journal of Geotechnical Engineering，2002，24(3)：343-346.(in Chinese))

[8] GRIFFITHS D V，LANE P A. Slope stability analysis by finite elements[J]. Geotechnique，1999，49(3)：387–403.

[9] 栾茂田，武亚军，年廷凯. 强度折减有限元法中边坡失稳的塑性区判据及其应用[J]. 防火减灾工程学报，2003，23(3)：1–8.(LUAN Maotian，WU Yajun，NIAN Tingkai. A criterion for evaluating slope stability based on development of plastic zone by shear strength reduction FEM[J]. Journal of Disaster Prevention and Mitigation Engineering，2003，23(3)：1–8.(in Chinese))

[10] HU H，FERNANDEZ-STEEGER T M，DONG M，et al. Numerical modeling of LiDAR-based geological model for landslide analysis[J]. Automation in Construction，2012，24：184–193.

[11] 郑颖人，赵尚毅，邓卫东. 岩质边坡破坏机制有限元数值模拟分析[J]. 岩石力学与工程学报，2003，22(12)：1 943–1 952. (ZHENG Yingren，ZHAO Shangyi，DENG Weidong. Numerical simulation on failure mechanism of rock slope by strength reduction FEM[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(12)：1 943–1 952.(in Chinese))

[12] 吴顺川，金爱兵，高永涛. 基于遍布节理模型的边坡稳定性强度折减法分析[J]. 岩土力学，2006，27(4)：537–542.(WU Shunchuan，JIN Aibing，GAO Yongtao. Slope stability analysis by strength reduction method based on ubiquitous-joint model[J]. Rock and Soil Mechanics，2006，27(4)：537–542.(in Chinese))

[13] HAMMAH R E，CURRAN J H. Fuzzy cluster algorithm for the automatic identification of joints sets[J]. International Journal of Rock Mechanics and Mining Sciences，1998，35(7)：889-905.

[14] FISHER R. Dispersion on a sphere[C]// Proceedings of the Royal Society of London. [S. l.]：[s. n.]，1953：295–305.