Skip to main content
main-content

Tipp

Weitere Kapitel dieses Buchs durch Wischen aufrufen

2021 | OriginalPaper | Buchkapitel

An Optimal 3D-LS Method with High Accuracy and Efficiency to Identify Rock Discontinuities Considering Its Development Degree and Its Application

verfasst von: Shengming Hu, Jianglin Gao, Chenghui Wan, Jiarong Liao, Zhiguang Dai

Erschienen in: Developments in Sustainable Geomaterials and Environmental Geotechnics

Verlag: Springer International Publishing

share
TEILEN

Abstract

Rock discontinuities are the basic component of the rock mass. Accurate investigation and collection of the spatial geometric information of rock discontinuities is an important basic work for rock mass stability analysis and evaluation. The three-dimensional laser scanning (3D-LS) technology has revolutionized the investigation manner of rock discontinuities, and has been used more and more widely in geological engineering investigation, especially the geological disaster emergency rescue project. Develop new 3D-LS methods with high accuracy and efficiency to identify rock discontinuities in an automatic or semi-automatic manner is a considerable challenge, as an alternative to the use of traditional manual methods. This work presents an optimal 3D-LS method that aims to achieve rapid registration and orientation of multi-site cloud and automatic/semi-automatic identify rock discontinuities. The method proposed herein starts multi-site cloud scanning based on RTK auxiliary orientation, and multi-site cloud scanning based on RTK auxiliary orientation. The development degree of rock discontinuities was then being estimated, and then proper method to extract the spatial orientation was determined: man-machine interactive extraction of orientations for the under-developed discontinuities or automatic extraction of multi-discontinuities using Discontinuity Set Extractor for the well-developed discontinuities. Through the single discontinuity scanning and orientation extraction tests and multi-discontinuities scanning and automatic orientation extraction tests of a rock specimen, the accuracy and efficiency of the methods proposed in this paper has been verified, and has high application promotion value. Besides that, a complete sensitivity analysis of the parameters has been performed for the automatic extraction of multi-discontinuities using Discontinuity Set Extractor, and the proper range of the parameters has been recommended.
Anhänge
Nur mit Berechtigung zugänglich
Literatur
Zurück zum Zitat Riquelme, A., Tomás, R., Cano, M., Pastor, J.L., Abellán, A.: Analysis of the persistence and normal spacing of discontinuities via 3D point clouds: a practical discussion. In: EGUGA, p. 3076 (2018a) Riquelme, A., Tomás, R., Cano, M., Pastor, J.L., Abellán, A.: Analysis of the persistence and normal spacing of discontinuities via 3D point clouds: a practical discussion. In: EGUGA, p. 3076 (2018a)
Metadaten
Titel
An Optimal 3D-LS Method with High Accuracy and Efficiency to Identify Rock Discontinuities Considering Its Development Degree and Its Application
verfasst von
Shengming Hu
Jianglin Gao
Chenghui Wan
Jiarong Liao
Zhiguang Dai
Copyright-Jahr
2021
DOI
https://doi.org/10.1007/978-3-030-79647-1_4