|
Abstract In order to research the invalidation mode of anchor bolt and the changing rule of anchoring force under different lateral pressure coefficients，pull-out tests were performed. The results show that：it was dominated by losing binding between anchor bolt with anchor layer interface accompanying that breaking of anchor layer and also losing binding between anchor layer with drilling hole wall，and the largest load force enlarged with the lateral pressure coefficients increase，when the coefficient reach 1.3，the largest load force of anchor blot was received，after that it was decreased by lateral pressure coefficients increased. The elastic deformation zone，plastic slip deformation zone and the losing binding deformation zone were emerged one after another on binding interface with anchor damaged. The friction force was enhanced by radial load on slip deformation zone between anchor bolt and anchor layer interface and then the largest pull-out load was increased.
|
|
Received: 22 May 2013
|
|
|
|
2013, Vol. 32 
