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- Title
玄武岩纤维锚杆加固岩体的夹持效应.
- Authors
王瑞兴; 冯君; 涂正楠; 王明星; 张卓晟
- Abstract
The research on new type bolt and new type anchor system has broad prospects in the optimization of slope bolt support means. By replacing the traditional steel bolt with basalt fiber composite reinforcement, a cross arrangement basalt fiber bolt anchorage system was proposed, and the reinforcement effect of the structure on the rock mass was analyzed by finite element method. The results show that the stress at the interface between the bolt and rock reaches the peak value under the influence of the clamping effect in the middle of the cross bolt, which drives the surrounding rock mass to bear the pulling load together. At the initial stage of the load response, the clamping effect of the bolt is not obvious. When the bolt enters the nonlinear displacement stage, the clamping effect of the cross-bolt anchorage system plays a role, which makes the bearing capacity of the anchorage system at this stage greatly improved compared with the traditional parallel anchorage system. The anchorage angle of the cross bolt has a great influence on the ultimate bearing capacity of the anchorage system, and the optimal analysis should be carried out in the engineering design to determine the dominant anchorage angle.
- Publication
Science Technology & Engineering, 2023, Vol 23, Issue 33, p14306
- ISSN
1671-1815
- Publication type
Article