可回收树脂锚杆锚固段锚固特性研究

Recoverable Resin Bolt Anchoring Section Anchoring Characteristic Study

通过ANSYS模拟出锚固段与围岩接触面上剪应力τ和正应力σ的分布曲线和相应数据,得出该锚杆的主要锚固作用发生在锚固段的深部;锚固段底部处于挤压膨胀状态,由库仑准则可知,接触面上正应力提高了锚固段围岩的抗剪强度。

Distributing form and correspond data of shear stress τ and normal stress σ on the interface of wall rock and resin anchoring section is educed by ANSYS simulation, and shows that anchoring action occurs mostly at deep anchoring section, where under extrusion swell state. The conclusion that the interface normal stress enhances shear strength of anchoring section is drawn from Coulomb Criterion.