A 3D material point discretization approach for complex terrain and geological body: Numerical implementation and application

IF 5.3 1区工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Computers and Geotechnics Pub Date : 2024-11-09 DOI:10.1016/j.compgeo.2024.106884

Yuyang You , Junsheng Yang , Xiangcou Zheng , Yipeng Xie , Jingkang Lyu , Ashraf S. Osman

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引用次数: 0

Abstract

The construction of three-dimensional numerical models for complex terrains and geological bodies has always posed a challenge in geoengineering. This study introduces an efficient discretization approach that facilitates the establishment of material point models for three-dimensional complex terrain and geological conditions. The proposed approach incorporates three structural components and employs an efficient algorithm for data processing to characterize terrain and geological bodies within the model. This enables the construction of complex, heterogeneous discrete models using elevation and material information as input data. A detailed procedure for implementing the proposed three-dimensional material point discretization approach is outlined. Additionally, robust metrics for discretization deviation and efficiency evaluation are introduced to assess the accuracy and efficiency of the constructed discretized models. The efficacy of the proposed approach is verified and evaluated through both two-dimensional and three-dimensional examples, demonstrating its accuracy and effectiveness.

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复杂地形和地质体的三维材料点离散方法：数值实现与应用

为复杂地形和地质体构建三维数值模型一直是地质工程领域的一项挑战。本研究介绍了一种高效的离散化方法，有助于建立复杂地形和地质条件下的三维物质点模型。所提出的方法包含三个结构组件，并采用高效的数据处理算法来描述模型中地形和地质体的特征。这样就能利用高程和材料信息作为输入数据，构建复杂的异质离散模型。本文概述了实施所建议的三维材料点离散化方法的详细程序。此外，还引入了离散化偏差和效率评估的稳健指标，以评估所构建离散化模型的准确性和效率。通过二维和三维实例验证和评估了建议方法的功效，证明了其准确性和有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Computers and Geotechnics 地学-地球科学综合

CiteScore

9.10

自引率

15.10%

发文量

438

审稿时长

45 days

期刊介绍： The use of computers is firmly established in geotechnical engineering and continues to grow rapidly in both engineering practice and academe. The development of advanced numerical techniques and constitutive modeling, in conjunction with rapid developments in computer hardware, enables problems to be tackled that were unthinkable even a few years ago. Computers and Geotechnics provides an up-to-date reference for engineers and researchers engaged in computer aided analysis and research in geotechnical engineering. The journal is intended for an expeditious dissemination of advanced computer applications across a broad range of geotechnical topics. Contributions on advances in numerical algorithms, computer implementation of new constitutive models and probabilistic methods are especially encouraged.