Research on Analysis Method of Load-Displacement Relationship of Series Anchor Plates

Abstract

To improve the pullout bearing capacity of anchor plate, the series anchor plate is proposed in this paper. Based on the theory of beam on elastic foundation and appropriate assumptions, this paper establishes both a theoretical analysis method and approximate analysis algorithm for the load-displacement relationship of series anchor plates embedded in clay. By the model test of six square series anchor plates of different sizes, two fitting parameters of relationship between proportion coefficient of bed coefficient of clay and horizontal displacement of anchor plates are obtained. Moreover, an approximate analytical formula for the relationship between the fitting parameters and edge length of square anchor plate is established. Finally, The theoretical analysis method is verified by three field tests of square series anchor plates with different edge length and embedded depth. At the same time, the influence of cohesion and internal friction angle on the pullout capacity of anchor plate is discussed. The results show that increasing the internal friction angle of soil is more effective than increasing the cohesion of soil in improving the pullout capacity of anchor plate.