Kinematic limit analysis of pullout capacity for plate anchors in sandy slopes

Undrained uplift capacity of deeply embedded strip anchors in non-uniform soil

“…Three different limit analysis techniques are used to analyze the problem defined in Section 2: (1) a semi-analytical approach based on upper bound limit analysis, (2) the block set mechanism proposed by Yu et al [35,36], which is also based on upper bound limit analysis, and (3) lower and upper bound finite element limit analysis (FELA). Upper bound limit analysis rests on consideration of kinematically admissible velocity fields (collapse mechanisms), and it rigorously brackets the true ultimate load from above for loads inducing collapse.…”

“…To calculate upper bounds using the block set mechanism [35,36], the collapse mechanism shown in Fig. 4 is assumed.…”

“…Within the framework of limit analysis [34], newly derived semi-analytical upper bound solutions are compared with numerical results obtained using a recently developed upper bound numerical approach known as the ''block set mechanism'' [35,36] as well as lower and upper bound finite element limit analysis (FELA). Tacit assumptions are that the material is perfectly plastic and obeys the Tresca yield criterion.…”