气候变化领域集成服务门户(CCPortal): A method to interpret fracture aperture of rock slope using adaptive shape and unmanned aerial vehicle multi-angle nap-of-the-object photogrammetry

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DOI	10.1016/j.jrmge.2023.07.010
	A method to interpret fracture aperture of rock slope using adaptive shape and unmanned aerial vehicle multi-angle nap-of-the-object photogrammetry
	Zhao, Mingyu; Song, Shengyuan; Wang, Fengyan; Zhu, Chun; Liu, Dianze; Wang, Sicong
发表日期	2024
ISSN	1674-7755
EISSN	2589-0417
起始页码	16
结束页码	3
卷号	16 期号:3
英文摘要	The aperture of natural rock fractures significantly affects the deformation and strength properties of rock masses, as well as the hydrodynamic properties of fractured rock masses. The conventional measurement methods are inadequate for collecting data on high-steep rock slopes in complex mountainous regions. This study establishes a high -resolution three-dimensional model of a rock slope using unmanned aerial vehicle (UAV) multi-angle nap-of-the-object photogrammetry to obtain edge feature points of fractures. Fracture opening morphology is characterized using coordinate projection and transformation. Fracture central axis is determined using vertical measuring lines, allowing for the interpretation of aperture of adaptive fracture shape. The feasibility and reliability of the new method are verified at a construction site of a railway in southeast Tibet, China. The study shows that the fracture aperture has a significant interval effect and size effect. The optimal sampling length for fractures is approximately 0.5-1 m, and the optimal aperture interpretation results can be achieved when the measuring line spacing is 1% of the sampling length. Tensile fractures in the study area generally have larger apertures than shear fractures, and their tendency to increase with slope height is also greater than that of shear fractures. The aperture of tensile fractures is generally positively correlated with their trace length, while the correlation between the aperture of shear fractures and their trace length appears to be weak. Fractures of different orientations exhibit certain differences in their distribution of aperture, but generally follow the forms of normal, log -normal, and gamma distributions. This study provides essential data support for rock and slope stability evaluation, which is of significant practical importance. (c) 2024 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting 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/).
英文关键词	Unmanned aerial vehicle (UAV); photogrammetry; High-steep rock slope; Fracture aperture; Interval effect; Size effect; Parameter interpretation
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Geological
WOS记录号	WOS:001233825100001
来源期刊	JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304087
作者单位	Jilin University; Jilin University; Hohai University
推荐引用方式 GB/T 7714	Zhao, Mingyu,Song, Shengyuan,Wang, Fengyan,et al. A method to interpret fracture aperture of rock slope using adaptive shape and unmanned aerial vehicle multi-angle nap-of-the-object photogrammetry[J],2024,16(3).
APA	Zhao, Mingyu,Song, Shengyuan,Wang, Fengyan,Zhu, Chun,Liu, Dianze,&Wang, Sicong.(2024).A method to interpret fracture aperture of rock slope using adaptive shape and unmanned aerial vehicle multi-angle nap-of-the-object photogrammetry.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,16(3).
MLA	Zhao, Mingyu,et al."A method to interpret fracture aperture of rock slope using adaptive shape and unmanned aerial vehicle multi-angle nap-of-the-object photogrammetry".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 16.3(2024).