Preprint Technical Note Version 1 Preserved in Portico This version is not peer-reviewed

Three-Dimensional Laser Scanning-Based Method for Identifying Rock Discontinuities

Version 1 : Received: 21 April 2021 / Approved: 23 April 2021 / Online: 23 April 2021 (13:15:02 CEST)

How to cite: Hu, S.; Jianglin, G.; Hu, L.; Dai, Z.; Chen, F. Three-Dimensional Laser Scanning-Based Method for Identifying Rock Discontinuities. Preprints 2021, 2021040641 (doi: 10.20944/preprints202104.0641.v1). Hu, S.; Jianglin, G.; Hu, L.; Dai, Z.; Chen, F. Three-Dimensional Laser Scanning-Based Method for Identifying Rock Discontinuities. Preprints 2021, 2021040641 (doi: 10.20944/preprints202104.0641.v1).

Abstract

Manual measurement of rock discontinuities is time-consuming and subjective according to the experience of the surveyor. This work proposes a three-dimensional laser scanning-based method for the semi-automatic identification of rock discontinuities. Multisite cloud scanning is performed with real-time kinematic (RTK)-assisted orientation to estimate the rock fracturing degree; then, discontinuity orientations are extracted with the man–machine interactive method or automatic method. The proposed method was applied to actual examples to illustrate its accuracy at identifying rock discontinuities. The sensitivity of the identification accuracy to different parameters was investigated.

Subject Areas

three-dimensional laser scanning; rock discontinuity; rock fracture; rock joint; discontinuity orientation.

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