Proceedings of the 11th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC 2024)

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Analysis of Rock Failure Modes of High and Steep Slopes based on non-Contact Measurements

- A Case Study of Wadugou Quarry Slopes

Authors
Jiang Tao1, Cui Shenghua1, *
1State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China
*Corresponding author. Email: cuishenghua18@cdut.edu.cn
Corresponding Author
Cui Shenghua
Available Online 4 January 2026.
DOI
10.2991/978-94-6463-946-9_34How to use a DOI?
Keywords
High and Steep Slopes; Non-contact Measurements; Automatic Discontinuity Dentification; Stability Analysis; Stereographicprojection
Abstract

The stability of rock slopes is significantly influenced by rock discontinuity structural planes, yet traditional manual measurement methods are often hindered by incomplete data, low efficiency, and the inaccessibility of steep slopes. To address these issues, this study introduces an innovative approach using UAV close photogrammetry combined with an automatic structural surface extraction algorithm, which efficiently captures detailed structural surface information. By conducting multi-angle UAV close photogrammetry on the quarry slope of Wadugou, this paper obtained ultra-high resolution images and constructed a refined 3D model using an image-based 3D point cloud method. Advanced automatic discontinuity dentification techniques, such as random Hough space transformation for point cloud normal vector calculation and structural surface point cloud clustering, were applied to analyze the slope’s damage patterns. The results indicated that the slope is characterized by four main structural surfaces, with the wedge damage pattern being the most probable at 36.87%, notably with a 91.57% probability for the J2 vs J3 combination. This method is not only cost-effective and labor-light but also highly efficient, providing a rapid analysis of slope rock mass damage patterns, which is invaluable for mine safety and geological engineering applications.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 11th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC 2024)
Series
Advances in Economics, Business and Management Research
Publication Date
4 January 2026
ISBN
978-94-6463-946-9
ISSN
2352-5428
DOI
10.2991/978-94-6463-946-9_34How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Jiang Tao
AU  - Cui Shenghua
PY  - 2026
DA  - 2026/01/04
TI  - Analysis of Rock Failure Modes of High and Steep Slopes based on non-Contact Measurements
BT  - Proceedings of the 11th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC 2024)
PB  - Atlantis Press
SP  - 262
EP  - 269
SN  - 2352-5428
UR  - https://doi.org/10.2991/978-94-6463-946-9_34
DO  - 10.2991/978-94-6463-946-9_34
ID  - Tao2026
ER  -