摘要
介绍PFC的基本原理及其在岩土工程基础理论和工程应用研究中的主要功能,包括描述岩土介质材料基本力学特性的特点;概述PFC目前在国际上应用的现状及其在解决岩土体问题时的适用性和针对性。结合在进行矿山崩落法开采实际工程问题时PFC数值模拟的应用过程,介绍真实问题PFC应用研究的基本思想和工作步骤,包括模型构建与设置、材料模拟的数值试验以确定给定岩体的微力学参数、破裂发生和发展过程的追综记录等;同时,还给出具体工程崩落开采过程中的破坏形态、应力变化、围岩响应等。
The paper concisely describes fundamental aspects of the particle flow code（PFC）, its features to perform scientific study and engineering application in geotechnical engineering. The descriptions include the advantages of PFC to depict the essential behaviors of rock and soil materials, the current status of PFC application worldwide, and its capability and applicability in geotechnical engineering practice. The procedures of using PFC to solve engineering problem has been introduced including model construction approach, numerical tests for determining micromechanical properties that governs rock mass behaviors, recording of cracking and facture propagating, by taking a cave study case as an example. The paper also presents the process of orebody caving and associated rock mass fracturing, stress altering, and response of surrounding rocks.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2006年第9期1927-1931,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
采矿工程
粒子流
介质
应力
数值试验
崩落开采
破裂
mining engineering
particle flow
media
stress
numerical test
caving
fracture
