Optimization of the fully grouted rock bolts for load transfer enhancement

被引：0
|
作者：
Ghadimi Mostafa [1 ]
Shahriar Korosh [2 ]
Jalalifar Hossein [3 ]
机构：
[1] Department of Mining Engineering,Tehran Science and Research Branch,Islamic Azad University
[2] Faculty of Mining,Metallurgy and Petroleum Engineering,Amir Kabir University of Technology
[3] Department of Petroleum and Mining Engineering,Environmental and Energy Research Center,Shahid,Bahonar University of Kerman
来源：
International Journal of Mining Science and Technology | 2015年 / 25卷 / 05期
关键词：
Fully grouted rock bolts; Numerical modeling; Load transfer; Bolt profile;
D O I：
暂无
中图分类号：
TD353.6 [];
学科分类号：
0819 ;
摘要：
The purpose of this study is to investigate the role of bolt profile configuration in load transfer capacity between the bolt and grout.Therefore,five types of rock bolts are used with different profiles.The rock bolts are modeled by ANSYS software.Models show that profile rock bolt T;and T;with load capacity 180 and 195 kN in the jointed rocks,are the optimum profiles.Finally,the performances of the selected profiles are examined in Tabas Coal Mine by FLAC software.There is good subscription between the results of numerical modeling and instrumentation reading such as tells tale,sonic extensometer and strain gauge rock bolt.According to the finding of this study,the proposed pattern of rock bolts,on 7 + 6 patterns per meter with 2 flexi bolt（4 m） for support gate road.
引用
收藏
页码：707 / 712
页数：6
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