典型文献
A new energy-absorbing bolt used for large deformation control of tunnel surrounding rock
文献摘要：
In order to control the large deformation of tunnel surrounding rock,a new energy-absorbing bolt is developed.This bolt can be transformed into a rigid support when the deformation of the surrounding rock reaches the length of the sleeve tube,thus preventing the surrounding rock from continuing to deform.Moreover,this bolt has a simple structure and is easy to manufacture and assemble.Then the static tensile test is conducted on the bolt specimen to test its working performance.The test results show that when the cone angle of the cone block is small,the load-displacement curve of the bolt con-tains three stages;when the cone angle is large,the load-displacement curve contains only two stages.Meanwhile,both the average constant resistance and the maximum absorbed energy increase linearly with the increase of cone angle.On this basis,ignoring the influence of shear stress,and it is supposed that the thickness of the sleeve tube is constant,then the theoretical calculation formula of constant resistance for the new bolt is derived,and the rationality of the formula is verified using the static tensile test results.It is found that the error of the calculated result is less than 15％when the cone angle does not exceed 15°.At last,the numerical simulation method is used to analyze the performance of the new bolt.The simulation results indicate that the generation of shear stress and the change of tube thickness dur-ing the movement of the cone block are two important factors that cause theoretical errors.
文献关键词：
中图分类号：
作者姓名：
Junbao Wang;Wei Liu;Zhanping Song;Lingfeng Li;Shijin Feng;Yun Cheng
作者机构：
School of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;Shaanxi Key Lab of Geotechnical and Underground Space Engineering,Xi'an 710055,China;The 4th Engineering Co.,Ltd.of China Railway 25th Bureau Group,Liuzhou 545007,China;Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China
文献出处：
引用格式：
[1]Junbao Wang;Wei Liu;Zhanping Song;Lingfeng Li;Shijin Feng;Yun Cheng-.A new energy-absorbing bolt used for large deformation control of tunnel surrounding rock)[J].矿业科学技术学报（英文版）,2022(05):1031-1043
A类：
B类：
new,energy,absorbing,bolt,used,large,deformation,control,tunnel,surrounding,rock,In,order,developed,This,can,transformed,into,rigid,support,when,reaches,length,sleeve,tube,thus,preventing,from,continuing,Moreover,this,has,simple,structure,easy,manufacture,assemble,Then,static,tensile,test,conducted,specimen,its,working,performance,results,show,that,cone,angle,block,small,load,displacement,curve,three,stages,contains,only,two,Meanwhile,both,average,constant,resistance,maximum,absorbed,increase,linearly,On,basis,ignoring,influence,shear,stress,supposed,thickness,then,theoretical,calculation,formula,derived,rationality,verified,using,It,found,calculated,less,than,does,not,exceed,At,last,numerical,simulation,method,analyze,indicate,generation,change,dur,movement,are,important,factors,cause,errors
AB值：
0.475191
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。
