An analytical model of fully grouted rock bolts subjected to tensile load

被引：178
作者：
Ma, Shuqi [1 ]
Nemcik, Jan [1 ]
Aziz, Naj [1 ]
机构：
[1] Univ Wollongong, Sch Civil Min & Environm Engn, Wollongong, NSW 2522, Australia
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 49卷
关键词：
Bond/shear strength; Rock bolts; Bond-slip relationship; Complete decoupling mechanism; CONCRETE INTERFACES; BOND STRENGTH;
D O I：
10.1016/j.conbuildmat.2013.08.084
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An analytical model for fully encapsulated rock bolts subjected to tensile load in pull-out tests is presented. This model is based on the bond-slip relationship describing the mechanical interaction at the bolt-grout interface. The model takes into account the residual shear stress in addition to the complete decoupling mechanisms. Formulations are also derived for the load-displacement curve, shear stress distribution at the bolt-joint interface and axial load distribution in the bolt. The model was validated with experimental results from both the laboratory experiments and in situ studies. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：519 / 526
页数：8
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