• captcha

中国科技核心期刊

美国化学文摘社(CAS)数据库

美国EBSCO学术数据库

日本科学技术振兴机构数据库(JST)

期刊导读

首页   >    采矿工程

循环荷载下岩石材料力学特性研究进展

  • 孙冰|刘顺|曾晟|樊军伟|尹裕|陈寅
  • 作者单位:
  • 南华大学土木工程学院|南华大学土木工程学院|南华大学资源环境与安全工程学院|南华大学土木工程学院|中钢集团马鞍山矿山研究院有限公司|新疆喀拉通克矿业有限责任公司
  • 基金项目:

  • 湖南省自然科学基金项目(2018JJ2331)
  • 详细信息:

  • 作者简介:
  • 孙冰(1979—),女,河南平顶山人,教授,博士,研究方向为岩石力学;湖南省衡阳市常胜西路28号,南华大学土木工程学院,421001;E-mail:sunbingnh@126.com
  • 通讯作者:
  • E-mail:usczengs@126.com,18773487811
  • PDF下载

Research progress of mechanical properties of rock materials under circulating loading

  • English Author:
  • School of Civil Engineering,University of South China|School of Civil Engineering,University of South China|School of Resource & Environment and Safety Engineering,University of South China|School of Civil Engineering,University of South China|Sinosteel Maanshan Institute of Mining Research Co.,Ltd.|Xinjiang Kalatongke Mining Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

工程实际中的岩体常常受到地质构造运动、工程施工及次生应力场等循环荷载作用,表现出与单调荷载不同的力学特性。为了更好地研究循环荷载作用下岩石材料的力学特性,对强度特征、变形特征及破坏特征3个方面进行了总结分析,同时对现有研究的局限性提出了几点建议:在更宽频率范围内研究频率对循环力学特性的影响,从而得出更为准确的结论;将现有的力学理论与数值模拟手段结合起来研究岩石材料的循环力学特性;通过扫描电镜与原位CT扫描等技术深入开展循环荷载下岩石力学特性的微观结构研究,探究岩石材料的失稳破坏机制。

关键词:

岩石力学;循环荷载;强度特征;变形特征;破坏特征

Abstract:

Rock mass in engineering practice is often subjected to circulating loads such as geological tectonic movement,engineering construction and secondary stress field,which shows different mechanical properties from monotonic loads.In order to study the mechanical properties of rock material under circulating load,the study summarized and analyzed from the 3 aspects of strength characteristics,deformation characteristics and failure characteristics,at the same time put forward some suggestions to the limitations of existing research:to study the effect of frequency on circulating mechanical characteristics in a wider frequency range,thus to reach more accurate conclusion;to study the circulating mechanical properties of rock materials by combining the existing mechanical theories with numerical simulation methods;scanning electron microscopy and on-situ CT scanning were used to conduct in-depth research on the microstructure of rock mechanical properties under circulating loading to explore the instability failure mechanism of rock materials.

Keywords:

rock mechanics;circulating load;strength characteristics;deformation characteristics;failure characteristics