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Intelligent characterization of discontinuities and heterogeneity evaluation of potential hazard sources in high-steep rock slope by TLS-UAV technology

文献类型：期刊论文

作者Liu, Changqing2,3; Bao, Han2; Wang, Tianyi2; Zhang, Jingfeng2; Lan, Hengxing1; Qi, Shengwen4; Yuan, Wei3; Koshimura, Shunichi3
刊名JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
出版日期2026
卷号18期号:1页码:509-527
关键词High-steep slope Rock mass hazard source Discontinuities Intelligent characterization Terrestrial laser scanning (TLS) Unmanned aerial vehicle (UAV)
ISSN号1674-7755
DOI10.1016/j.jrmge.2025.03.023
产权排序3
文献子类Article
英文摘要The identification of rock mass hazard sources is fundamental for preventing rockfall and landslide disasters in mountainous regions, with rock mass structural characteristics playing a vital role in hazard assessment. In this study, terrestrial laser scanning (TLS) and unmanned aerial vehicle (UAV) technologies were integrated to enhance the evaluation methodology for rock mass hazard sources, focusing on the Sichuan Yanjiang Expressway project in China. The findings demonstrate that TLS-UAV technology enhanced both spatial coverage and data density in slope modeling. Through integrated algorithmic analysis, rock discontinuities within heterogeneous datasets were systematically identified, enabling quantitative extraction and statistical analysis of key geometric parameters, including orientation, trace length, spacing, and roughness. Furthermore, quantitative models were developed for cohesion, friction angle and the morphology parameter M of in situ discontinuities, respectively, facilitating efficient mechanical parameter acquisition. A novel rock mass hazard index (RHI) was developed incorporating discontinuity geometric rating (DGR), discontinuity mechanical rating (DMR), and slope mass rating (SMR). Field validation confirmed the methodology's effectiveness in evaluating risk levels and spatial heterogeneity of rock mass hazard sources, revealing the contribution of different discontinuity sets to the rock mass hazard and identifying the primary discontinuity sets controlling instability mechanisms. This study is of great significance for evaluating discontinuity-controlled rock mass hazard sources and preventing rockfall disasters. (c) 2026 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/ 4.0/).
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WOS关键词INSTABILITY ; 2D
WOS研究方向Engineering
语种英语
WOS记录号WOS:001663890500001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/219648]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Bao, Han; Zhang, Jingfeng
作者单位1.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
2.Changan Univ, Sch Highway, Xian 710064, Peoples R China;
3.Tohoku Univ, Int Res Inst Disaster Sci, Sendai 9808572, Japan;
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Changqing,Bao, Han,Wang, Tianyi,et al. Intelligent characterization of discontinuities and heterogeneity evaluation of potential hazard sources in high-steep rock slope by TLS-UAV technology[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2026,18(1):509-527.
APA Liu, Changqing.,Bao, Han.,Wang, Tianyi.,Zhang, Jingfeng.,Lan, Hengxing.,...&Koshimura, Shunichi.(2026).Intelligent characterization of discontinuities and heterogeneity evaluation of potential hazard sources in high-steep rock slope by TLS-UAV technology.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,18(1),509-527.
MLA Liu, Changqing,et al."Intelligent characterization of discontinuities and heterogeneity evaluation of potential hazard sources in high-steep rock slope by TLS-UAV technology".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 18.1(2026):509-527.

入库方式： OAI收割

来源：地理科学与资源研究所

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