摘要
锚杆锚固岩土体后,形成的锚固体单元能否提供足够的锚固力是整个锚固工程的关键。现有研究表明,锚固系统的破坏模式主要表现为锚杆与锚固剂界面和锚固剂与围岩界面发生滑脱。总结了影响锚杆锚固界面力学特性的因素,分析归纳了锚固界面力学特征研究领域存在的主要问题。指出合理利用数值模拟与试验手段并结合理论分析对锚固界面的力学特性进行深入研究,有助于弄清锚杆锚固系统的作用机理,对提升锚固工程安全性与稳定性有着重大意义。相关结论为今后锚杆锚固界面力学特性的研究提供了方向和参考。
After anchoring rock and soil with anchor rod,whether the anchoring solid unit can provide enough anchoring force is the key of the whole anchoring project.The existing research shows that the failure mode of an anchoring system is mainly occurring at the interface between bolt and anchoring agent and the interface between anchoring agent and surrounding rock,which are the vulnerable link in the anchoring system.This paper summarized the factors that affect the interfacial mechanical properties of anchorage bolt and analyzed the main problems in this research field.It was pointed out that the rational use of numerical simulation and combination of test methods and theoretical analysis was helpful to understanding the mechanism of anchorage system and had great significance to improving the safety and stability of anchorage engineering.It provided the direction and reference for the future research on the mechanical properties of anchor bolt interface.
作者
查文华
王京九
华心祝
刘造保
王澄菡
ZHA Wenhua;WANG Jingjiu;HUA Xinzhu;LIU Zaobao;WANG Chenghan(School of Civil and Architectural Engineering,East China University of Technology,Nanchang 330013,China;School of Energy Resources and Safety,Anhui University of Science and Technology,Huainan 232001,China;School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《人民长江》
北大核心
2021年第11期161-168,共8页
Yangtze River
基金
国家自然科学基金资助项目(51964002,51474005)
安徽省重点研究和开发计划资助项目(1804b06020361)
东华理工大学研究生创新基金资助(项目YC2019-S281)。
关键词
锚固界面
力学特性
黏结强度
数值模拟
理论分析
anchoring interface
mechanical property
adhesive strength
numerical simulation
theoretical analysis
