|Table of Contents|

Construction of 3D Real Scene Model of High-steep Rock Slope Surface and Development of Automatic Interpretation Method and Platform of Rock Mass Discontinuous(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2022年第06期
Page:
1066-1082
Research Field:
纪念刘国昌先生诞辰110周年专辑
Publishing date:

Info

Title:
Construction of 3D Real Scene Model of High-steep Rock Slope Surface and Development of Automatic Interpretation Method and Platform of Rock Mass Discontinuous
Author(s):
DONG Wen-chuan;  ZHANG Wen*;  LI Teng-yue;  CHEN Jun-qi;  WANG Jia;  LI Wan-kun;  YIN Han;  ZHAO Xiao-han;  LAN Sheng;  PAN Xiao-juan
(College of Construction Engineering, Jilin University, Changchun 130026, Jilin, China)
Keywords:
engineering geology;  structural plane of rock mass;  multi-angle nap-of-the-object photogrammetry;  cusp mutation;  3D real scene model;  3D point cloud model;  automatic interpretation;  Tibet
PACS:
TU45; TP391.4
DOI:
10.19814/j.jese.2022.10053
Abstract:
The 3D modeling accuracy of high-steep rock slopes is low, and the automatic interpretation of surface rock mass is difficult. A high-precision 3D real scene model construction method based on UAV multi-angle nap-of-the-object photogrammetry technology was proposed, which realized the construction of millimeter 3D real scence model and provided data support for the subsequent fine interpretation of structural planes. At the same time, the mutation theory was applied to the 3D point cloud model generated by the 3D real scene model. By judging whether the physical information of the point cloud is in the mutation state in the cusp mutation model, the automatic identification of discontinuities is realized, which simplifies the process of traditional algorithm requiring input of a large number of parameters. On this basis, the automatic rock discontinuity interpretation and identification(ARFD-RMS)platform is developed to realize the automation and visualization of the rock discontinuity identification and interpretation process. Using the above methods, the high-steep rock slope on the northern bank of Sequ grand bridge in Changdu area of Tibet was taken as the research object, and a 3D real scene model of millimeter scale was constructed, which identified and interpreted 659 fractures in the slope where the structural plane was obviously exposed. Compared with manual measurement data, the error of interpretation results is within 6°. In addition, the applicability of the ARFD-RMS platform is tested through open source point cloud datasets, and the results show that the platform is competent for interpretation of structural plane in different regions.

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Last Update: 2022-11-25