Using an elastic-plastic finite element method

the effect of excavation on bearing capacity of neighboring soils under a rigid strip footing was investigated to analyze the influence of such factors as ex- cavating depth

distance between load and excavated pit

load width

un-drained shear strength of soil and bracing stiffness.It shows that the un-drained shear strength of soil

the load position and excavating depth all have great effects on the ultimate bearing capacity

but the influence of bracing stiffness is rela- tively small.The ultimate bearing capacity decreases rapidly with the increasing of excavating depth and shortening of the distance between the rigid strip footing and excavation.And the uhimate bearing capaci- ty increases linearly with the un-drained shear strength of soil and load position.The bracing stiffness has little influence on the uhimate bearing capacity.