Abstract
The behavior of laterally loaded pile groups in elasto-plastic soil is examined in two papers by writers. This paper is the first and deals with plastic soil resistance which has a great influence on the behavior of piles. In the second paper (part II), the analysis for a pile group in due consideration of above plastic soil resistance and more realistic boundary condition than that in the employed by Poulos is proposed. The plastic soil resistance around a pile group is different from single pile, and is governed by the arrangement of piles and distance of those, etc. Considering these conditions, the peculiar plastic soil resistance for pile groups are presented in this paper.
