全长粘结型抗浮锚杆的受力分析与应用研究  

FORCE ANALYSIS AND APPLICATION OF FULL-LENGTH BONDED ANTI-FLOATING ANCHOR

作　　者：马迅 熊正朝 周茜 田兴 付鸣 明皓 MA Xun;XIONG Zheng-chao;ZHOU Qian;TIAN Xing;FU Ming;MING Hao(Beijing Urban Construction Group Co.,Ltd.,100088,Beijing,China;Beijing Urban Construction Eighth Construction DevelopmentCo.,Ltd.,102218,Beijing,China)

机构地区：[1]北京城建集团有限责任公司,北京100088 [2]北京城建八建设发展有限责任公司,北京102218

出　　处：《建筑技术》2022年第6期745-748,共4页Architecture Technology

摘　　要：在分析全长粘结型抗浮锚杆作用机理的基础上,阐述了在抗浮锚杆的设计与施工中,材料本身特性、围岩特性、荷载与施工方法等诸多因素对抗浮锚杆承载力的影响,并综合考虑这些因素对建设项目的抗浮锚杆进行设计与施工,最终通过现场拉拔试验进行验证,试验结果表明:所有受检锚杆在最大加载时均未出现破坏特征,锚杆抗拔承载力满足要求;最大加载锚头变形与卸载后残余变形均在合理范围内。证明该项目的抗浮锚杆设计合理、施工效果较好,为其他项目提供了参考依据。This paper based on the analysis of full length binder type anti-floating rod mechanism,elaborated in the design and construction of anti-floating anchor rod,the material itself characteristics,the characteristics of surrounding rock,load and construction method,and many other factors that affect the bearing capacity of anti-floating anchor rod.Considering these factors,the anti-floating anchor of construction project was designed and constructed,and finally verified by on-site drawing test.The test results show that:all tested bolts have no failure characteristics during the maximum loading,and the pulling capacity of bolts meets the requirements.The maximum deformation of loading anchor head and residual deformation after unloading are in reasonable range.It is proved that the anti-floating anchor design is reasonable and the construction effect is good,which can provide reference for other projects.

关 键 词：地下结构 抗浮锚杆 全长粘结型 受力分析 拉拔试验 

分 类 号：TU399[建筑科学—结构工程]