A modified method of discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces
This paper presents an automated method for discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces. Specifically, the method consists of five steps: (1) detection of trace feature points by normal tensor voting theory, (2) contraction of trace feature points, (3) conn...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-06-01
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| Series: | Journal of Rock Mechanics and Geotechnical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S167477552030041X |
| _version_ | 1828174749178527744 |
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| author | Keshen Zhang Wei Wu Hehua Zhu Lianyang Zhang Xiaojun Li Hong Zhang |
| author_facet | Keshen Zhang Wei Wu Hehua Zhu Lianyang Zhang Xiaojun Li Hong Zhang |
| author_sort | Keshen Zhang |
| collection | DOAJ |
| description | This paper presents an automated method for discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces. Specifically, the method consists of five steps: (1) detection of trace feature points by normal tensor voting theory, (2) contraction of trace feature points, (3) connection of trace feature points, (4) linearization of trace segments, and (5) connection of trace segments. A sensitivity analysis was then conducted to identify the optimal parameters of the proposed method. Three field cases, a natural rock mass outcrop and two excavated rock tunnel surfaces, were analyzed using the proposed method to evaluate its validity and efficiency. The results show that the proposed method is more efficient and accurate than the traditional trace mapping method, and the efficiency enhancement is more robust as the number of feature points increases. |
| first_indexed | 2024-04-12T04:18:01Z |
| format | Article |
| id | doaj.art-a4ea0a5b512b452e90d79c154a382e6b |
| institution | Directory Open Access Journal |
| issn | 1674-7755 |
| language | English |
| last_indexed | 2024-04-12T04:18:01Z |
| publishDate | 2020-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Rock Mechanics and Geotechnical Engineering |
| spelling | doaj.art-a4ea0a5b512b452e90d79c154a382e6b2022-12-22T03:48:20ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552020-06-01123571586A modified method of discontinuity trace mapping using three-dimensional point clouds of rock mass surfacesKeshen Zhang0Wei Wu1Hehua Zhu2Lianyang Zhang3Xiaojun Li4Hong Zhang5Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, ChinaDepartment of Geotechnical Engineering, Tongji University, Shanghai, 200092, China; Corresponding author.Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, ChinaDepartment of Civil Engineering and Engineering Mechanics, University of Arizona, Tucson, AZ, 85721, USADepartment of Geotechnical Engineering, Tongji University, Shanghai, 200092, ChinaDepartment of Hydraulic Engineering, Tongji University, Shanghai, 200092, ChinaThis paper presents an automated method for discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces. Specifically, the method consists of five steps: (1) detection of trace feature points by normal tensor voting theory, (2) contraction of trace feature points, (3) connection of trace feature points, (4) linearization of trace segments, and (5) connection of trace segments. A sensitivity analysis was then conducted to identify the optimal parameters of the proposed method. Three field cases, a natural rock mass outcrop and two excavated rock tunnel surfaces, were analyzed using the proposed method to evaluate its validity and efficiency. The results show that the proposed method is more efficient and accurate than the traditional trace mapping method, and the efficiency enhancement is more robust as the number of feature points increases.http://www.sciencedirect.com/science/article/pii/S167477552030041XRock massDiscontinuityThree-dimensional point cloudsTrace mapping |
| spellingShingle | Keshen Zhang Wei Wu Hehua Zhu Lianyang Zhang Xiaojun Li Hong Zhang A modified method of discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces Journal of Rock Mechanics and Geotechnical Engineering Rock mass Discontinuity Three-dimensional point clouds Trace mapping |
| title | A modified method of discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces |
| title_full | A modified method of discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces |
| title_fullStr | A modified method of discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces |
| title_full_unstemmed | A modified method of discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces |
| title_short | A modified method of discontinuity trace mapping using three-dimensional point clouds of rock mass surfaces |
| title_sort | modified method of discontinuity trace mapping using three dimensional point clouds of rock mass surfaces |
| topic | Rock mass Discontinuity Three-dimensional point clouds Trace mapping |
| url | http://www.sciencedirect.com/science/article/pii/S167477552030041X |
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