基于三维激光扫描技术的岩体结构面智能识别与信息提取

doi:10.13722/j.cnki.jrme.2017.0870

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Abstract The geometric parameters of rock discontinuities are important for stability and permeability analysis of rock mass. The intelligent identification and properties calculation of rock discontinuities based on the improved algorithm of region growing and analytic geometry were made according to the nodded cloud data of exposed rock measured with the terrestrial laser scanning. To identify the rock discontinuities from nodded cloud data effectively，the region growing algorithm was improved by specifying the normal vectors to the nodes as the judgment indicator and setting two thresholds(smoothness detection threshold and region growing threshold ). The orientation，spacing and scale of rock discontinuities can be computed using the analytic geometry. The effects of two thresholds on the identification results were investigated，and a suggestion for threshold selection was provided according to the difference of normal vectors between the adjacent discontinuities. Additionally，the proposed method was applied to two cases，regular planes and road slopes，to verify the robustness of the algorithm.

Key words： rock mechanics terrestrial laser scanning rock discontinuities intelligent identification geometric properties extraction improved region growing

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	Articles by authors
	GE Yunfeng1
	2
	XIA Ding1
	TANG Huiming1
	3
	ZHAO Binbin4
	WANG Liangqing1
	CHEN Yong1

Cite this article:

GE Yunfeng1,2,XIA Ding1, et al. Intelligent identification and extraction of geometric properties of rock discontinuities based on terrestrial laser scanning[J]. , 2017, 36(12): 3050-3061.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2017.0870 OR http://www.rockmech.org/EN/Y2017/V36/I12/3050

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