赵娜;张怡斌;王来贵;张亦海;

• 1:辽宁工程技术大学力学与工程学院
• 2:中国安全生产科学研究院
• 3:中安国泰(北京)科技发展有限公司

摘要(Abstract)：

为探究不同工况下含软弱夹层岩石的蠕变破裂演化规律，基于连续-非连续单元方法（CDEM），采用理论分析和数值模拟方法研究恒载作用下含软弱夹层岩石的蠕变破裂演化规律，模拟了不同倾角、不同厚度及不同弱层力学特性的含弱层岩石蠕变演化全过程.研究结果表明：岩体蠕变受控于软弱夹层倾角的影响，随着弱层倾角的增加，岩石蠕变速率越快，进入加速蠕变阶段的时间越短；相同倾角时，弱层厚度越大，蠕变速率越慢，蠕变破坏时轴向应变也越小；含软弱夹层岩石的蠕变速率与软弱夹层的弹性模量大小成反比，软弱夹层材料弹性模量越小，岩体总体强度越小，岩石蠕变速率越快.

关键词(KeyWords)： 软弱夹层;蠕变;连续-非连续单元法;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目（2017YFC1503102）;; 辽宁省重点科技创新基地联合开放基金（2020-KF-13-06）;; 辽宁省教育厅科研项目（LJ2020JCL013）

作者(Authors): 赵娜;张怡斌;王来贵;张亦海;

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