摘要
在解决崩塌、滑坡、泥石流等大变形地质灾害问题时,常采用数值模拟的方法。如何准确高效地模拟这类问题一直以来都是个难题。物质点法(material point method,MPM)作为一种新兴的数值方法,克服了传统有限元和有限差分等数值方法在模拟大变形时产生的网格畸变问题,并已成功应用于地质灾害中的大变形分析。为了解物质点法在地质灾害大变形模拟中的应用情况,文章在现有研究的基础上简要介绍了物质点法的基本原理,主要总结了物质点法在模拟滑坡、泥石流、地裂缝等地质灾害大变形问题中的应用以及最新的研究进展。同时,指出了物质点法在现有研究中存在的精度、计算效率、多物理场耦合等问题,并展望了物质点法在工程地质中进一步发展的趋势。
Numerical simulation is commonly used to address large deformation geological disasters such as collapses,landslides,and debris flows.Accurately and efficiently simulating these issues has always been a challenge.The material point method(MPM),as emerging numerical method,overcomes the grid distortion problems of traditional numerical methods such as the finite element method(FEM)and finite difference method(FDM)when simulating large deformations,and has been successfully applied in the large deformation analysis of geological disasters.In order to understand the research progress of MPM in the large deformation simulation of geological disasters,this paper briefly introduces the basic principles of MPM based on current research.It also summarizes the application of MPM in simulating large deformations of geological disasters such as landslide,debris flow,and ground fracture,highlighting the latest research progress.Furthermore,it identifies issues in existing MPM research,such as accuracy,computational efficiency,and coupling of multi-physics fields,and discusses future trends in MPM development withinengineering geology.
作者
王梦晨
李滨
万佳威
高杨
王文沛
WANG Mengchen;LI Bin;WAN Jiawei;GAO Yang;WANG Wenpei(School of Geological Engineering and Geomatics,Chang’an University,Xi’an,Shaanxi 710054,China;Institute of Geomechanics,Chinese Academy of Geological Sciences,Beijing 100081,China;Key Laboratory of Active Tectonics and Geological Safety,Ministry of Natural Resources,Beijing 100081,China;China Institute of Geo-Environment Monitoring(Guide Center of Prevention Technology for Geo-Hazards,MNR),Beijing 100081,China)
出处
《中国地质灾害与防治学报》
2025年第4期37-47,共11页
The Chinese Journal of Geological Hazard and Control
基金
国家自然科学基金项目(U2244226,42407280)
中国地质调查局地质调查项目(DD20230538)
中国电建集团项目(CD2C20230228,CD2C20231102)。
关键词
物质点法
地质灾害
大变形
数值方法
滑坡
material point method(MPM)
geological disasters
large deformation
numerical methods
landslides
