Processing outcrop point clouds to 3D rock structure using open source software

Qian Liu*, Lisa Wronski, Philipp Danzl

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

This study proposes a processing procedure to extract the 3D rock structure directly from point clouds using open source software. The basic processing involves: (1) estimating the Hough's normal of each point; (2) converting the normal to dip direction and dip of the corresponding plane; (3) coloring each point in HSV color space according to its normal; (4) decoding the sets number using the multivariate kernel density estimators; (5) extracting and visualizing the set-based points; and (6) estimating the set-based geometric parameters and conducting stereographic projection. The result is an actual discrete fracture network aggregated with the set-based point clouds having HSV colors. From the initial point cloud to the completion of processing, we manage all data in one single file. The case studies show that the processing procedure can identify, extract, and quantify the fracture sets that have less exposed areas, which facilitates the evaluation of main risks.

Original languageEnglish
Title of host publicationMechanics and Rock Engineering, from Theory to Practice
Subtitle of host publicationEuropean Rock Mechanics Symposium
PublisherIOP Publishing
DOIs
Publication statusPublished - 6 Sep 2021
Event2021 ISRM International Symposium on Mechanics and Rock Engineering from Theory to Practice: EUROCK 2021 - Virtuell, Italy
Duration: 20 Sep 202125 Sep 2021

Publication series

NameIOP Conference Series: Earth and Environmental Science
Volume833

Conference

Conference2021 ISRM International Symposium on Mechanics and Rock Engineering from Theory to Practice
Abbreviated titleEUROCK 2021
Country/TerritoryItaly
CityVirtuell
Period20/09/2125/09/21
OtherEUROCK TORINO 2021 - European Rock Mechanics Symposium

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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