DICE:An open-source MATLAB application for quantification and parametrization of digital outcrop model-based fracture datasets
作者机构：Department of Earth and Environmental SciencesUniversity of PaviaPavia27100Italy National Research Council of ItalyResearch Institute for Geo-Hydrological Protection(CNR-IRPI)Torino10135Italy Signal S.r.l.Via Fratelli Cuzio 42Pavia27100Italy
出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)
年 卷 期：2023年第15卷第5期
页 面：1090-1110页
核心收录：
学科分类：0820[工学-石油与天然气工程] 08[工学] 082002[工学-油气田开发工程]
主 题：Fracture parameter Discontinuity Fault Fracture intensity Linear fracture intensity(P10) Areal fracture intensity(P21) Volumetric fracture intensity(P32)
摘 要：An open-source MATLAB application(app)named Discontinuity Intensity Calculator and Estimator(DICE)was developed in order to quantitatively characterize the fractures,or in more general,discontinuities within a rocky outcrop in three-dimensional(3D)digital data,such as digital outcrop model(DOM).The workflow proposed for the parametrization of the discontinuities consists of the following steps:(1)Analysis and mapping of the fractures detected within the 3D DOMs;(2)Calculation of the orientation,position and dimensions of discontinuities that are represented by best-fit circular planes;(3)Determining the discontinuity parameters(dimension,distribution,spacing and intensity)by the DICE algorithm using different 3D oriented sampling techniques(3D oriented scanline,3D oriented circular scan window and spherical scan volume).Different sampling methods were bench tested with a synthetic,as well as a natural case study,and compared in order to understand the advantages and limitations of each *** 3D oriented circular scan window appears to be the most effective method for fracture intensity estimation with high accuracy(error 0.4%)and stability with variations in scan radius.
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