采矿与安全工程学报 ›› 2012, Vol. 29 ›› Issue (6): 762-769.

• 论文 • 上一篇    下一篇

深部高应力软岩巷道围岩流变数值模拟研究

  

  1. 1. 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏  徐州  221008;
    2. 山东科技大学土木建筑学院,山东  青岛  266510
  • 收稿日期:2011-09-30 出版日期:2012-11-15 发布日期:2012-11-05
  • 作者简介:孟庆彬(1985-),男,山东省菏泽市人,博士,从事岩体加固理论与应用技术方面的研究。 E-mail:mqb1985@126.com Tel:13951468390
  • 基金资助:

    国家自然科学基金项目(51174196);

    教育部新世纪优秀人才支持计划资助项目(NCET-07-0519)

Study on the Rheology of Soft Rock with High Stress by Numerical Simulation

  • Received:2011-09-30 Online:2012-11-15 Published:2012-11-05

摘要: 针对深部高应力软岩巷道围岩变形量大、变形速率快、持续时间长、流变性强的特点,采用Burgers流变模型,基于FLAC3D进行了巷道围岩流变数值模拟研究,得到了巷道埋深-时间蠕变曲线、侧压力系数-时间蠕变曲线、弹性模量-时间蠕变曲线及黏滞系数-时间蠕变曲线,分析了它们对巷道围岩流变的影响规律。

关键词: 深部, 高应力软岩巷道, 流变, FLAC3D数值模拟

Abstract: In connection with the characteristic of large deformation, high deformation rate, long duration and strong rheology in tunnel with soft rock under high pressure, the author has analyzed the regulation of their impact on the rheology of surrounding rock which is based on the software of FLAC3D numerical simulation through the model of Burgers, and four creep curves can be got to show the relationship between time and depth, lateral pressure coefficient, elastic modulus and viscosity coefficient respectively.

Key words: deep, soft rock roadway under high stress, rheology, FLAC3D numerical simulation