中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2005, Vol. 24 ›› Issue (4): 84-88.

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Research Oil numerical simulation of damage—firacture process of control fissure in unstable rock

TANG Hong-mei 1 , YE Si—qiao1 , CHEN Hong-kai 1 ,2   

  1. 1.Imt.of Ceotechnical Engineering,Chongqing Jiaotong University,Chongqing 400074,China;2.Key Lab.For the Exploitation of Southwestern Resources&the Environmental Dester Control EIlgiIleeriIlg,Ministry ofEducation, Chongqing University,Chongqing 4OOO44,China
  • Received:2004-05-21 Revised:2004-09-07 Online:2005-08-15 Published:2015-05-18

危岩主控结构面损伤一断裂数值模拟研究

唐红梅1,叶四桥1,陈洪凯1,2   

  1. 1.重庆交通学院岩土工程研究所,重庆400074;2.重庆大学西南资源开发及 环境灾害控制工程教育部重点实验室,重庆4OOO44
  • 作者简介:唐红梅(1968一),女,重庆人,女,副研究员、硕士生导师,从事公路泥石流、危岩及地质灾害研究.
  • 基金资助:
    交通部跨世纪人才专项基金项目(85050508)、西部交通项目(200332822047)、交通部重点科技基金项目 (95060233)及高等学校重点实验室访问学者基金资助项目成果之一

Abstract: Hitherto,unstable rock is the weakest one to study in disasters,speclany也咖 and fracture of control fissure under loads is one key technique in study ofdevelop mecl1anism ofumtable rock.Based Oil scale identification and也唧pst'anlete,l's solution,fdamage zone in control fi~-ure end,the allIhol'~make a lot of numerical simulationtO control fissure in FEN method under nature state,continue rRime~dl state and caith~ e b-'t~e.Spare constant offracture tenacity ofcontrol fissure in every loads eonslitute aIe o0m Irable with stabaity eoettieient of ilnst~ e roc

Key words: umtable rock, control fissure, damage-fi-aeture process, numerical simulation

摘要: 危岩是迄今研究程度极其薄弱的地质灾害类型,而主控结构面受荷损伤断裂扩展过程是危岩发育机理研究 的核心技术。本文通过对主控结构面裂端损伤区范围确定及损伤区损伤材料参数的求解,运用有限元数值模拟方 法对天然状态工况、持续暴雨工况及地震工况进行了数值模拟,获取了不同工况主控结构面的断裂韧度富余系数, 与危岩体的稳定系数具有良好的一致性

关键词: 危岩, 主控结构面, 损伤一断裂过程, 数值模拟

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