Development and Analysis of Compound Steel Sheet Piles

Due to the limited sections of steel sheet piles available in Thailand, this paper presents a new type of steel sheet piles called ‘compound sheet piles’ that consists of a conventional or noncompound steel sheet pile attached with a structural steel such as H-Beams, Cut-Beams and Castellated Beams. The compound steel sheet pile system has higher stiffness compared with conventional retaining wall and thus enhance safety and productivity. The section properties of various compound steel sheet piles are presented and investigated for their performance. A flexural test of full-scale compound sheet piles is carried out to study their behavior and also to verify the proposed section properties. Finite element simulations for both static and buckling analyses are also conducted to verify and evaluate the flexural performance of various compound sheet piles. The results from the finite element simulations are in very good agreement with those obtained from the full-scale laboratory.