典型文献
An analytical analysis for the mechanical performance of fully-grouted rockbolts based on the exponential softening model
文献摘要：
This paper presented a novel bond-slip model to better reveal the mechanical behavior of the bolt-grout interface for fully-grouted rockbolts under tensile loads by considering the non-linear response in the softening stage.The exponential decay function is adopted for describing the non-linear response in the softening stage.Based on the improved bond-slip model,the corresponding analytical solutions for the interfacial shear stress and the axial force of the bolt under different loading stages are solved.Then,the validity of this proposed model was verified by comparing with the experimental results.The results show that compared with the linear softening model,the proposed model is more suitable for predicting the mechanical performance of fully-grouted rockbolts.Finally,a series of parametric stud-ies are conducted to explore the effect of model parameters on the mechanical properties of fully-grouted rockbolts.The results indicate that compared with the anchor length,the bolt diameter and the bond strength of the bolt-grout interface have a significance influence on the ultimate load of bolt,especially for the elastic and softening stage.Moreover,it can be found that using the linear softening model maybe overestimates the supporting performance of grouted bolt,resulting in an unsafe design for bolt.
文献关键词：
中图分类号：
作者姓名：
Zhongwen Yue;Akang Li;Peng Wang
作者机构：
Department of Mechanics and Civil Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China;Pan-China Construction Group Co.,Ltd.,Beijing 100070,China
文献出处：
引用格式：
[1]Zhongwen Yue;Akang Li;Peng Wang-.An analytical analysis for the mechanical performance of fully-grouted rockbolts based on the exponential softening model)[J].矿业科学技术学报（英文版）,2022(05):981-995
A类：
rockbolts
B类：
An,analytical,analysis,mechanical,performance,fully,grouted,exponential,softening,model,This,paper,presented,novel,bond,slip,better,reveal,behavior,interface,under,tensile,loads,by,considering,linear,response,decay,function,adopted,describing,Based,improved,corresponding,solutions,interfacial,shear,stress,axial,force,different,loading,stages,solved,Then,validity,this,proposed,was,verified,comparing,experimental,results,show,that,compared,more,suitable,predicting,Finally,series,parametric,stud,conducted,explore,effect,parameters,properties,indicate,anchor,length,diameter,strength,have,significance,influence,ultimate,especially,elastic,Moreover,found,using,maybe,overestimates,supporting,resulting,unsafe,design
AB值：
0.445455
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
