Study on the Ultimate Pullout Capacity and Shape Modification Factors of Horizontal Plate Anchors Based on Nonlinear Mohr-Coulomb Failure Criterion

Based on the limit analysis and nonlinear Mohr-Coulomb failure criterion, the ultimate pull-out capacity of horizontal plate anchors is calculated, in which the type of anchors and the corresponding failure mechanism are taken into consideration. The ultimate pullout capacity is obtained by a nonlinear sequential quadratic programming algorithm, and the theoretical results are compared with the available results presented in the existing literatures. The relationship between the nonlinear parameter and the ultimate pullout capacity is analyzed. The shape modification factors for different kind of anchors are given through a multiple nonlinear regression method.