Steel sheet piles are steel structures with linkages along their edges that can be freely combined to form continuous, compact retaining walls and water retaining walls. Due to their functionality, appearance, and practical value, steel sheet piles fully meet the standards for building materials in the 21st century and have been hailed by experts and scholars within and outside the industry as a revolutionary material in the new century's construction field.

International Research Status

Sunirmail proposed the need to consider seepage safety factors in their design and used a semi-analytical method to calculate and analyze the impact of a double-row steel sheet pile structure on steady-state seepage.

Buhan et al. equated steel sheet piles to a shell and the fill to an elastic continuum. Based on limit equilibrium theory, they analyzed and explored the distribution of earth pressure on steel sheet piles under the action of fill.

Lefas et al. used a simplified two-dimensional model to calculate a steel sheet pile cofferdam. They also used software to analyze and compare the stress and deformation of the cofferdam structure under various working conditions. The model was then compared with data obtained using traditional calculation methods to validate the validity of this simplified two-dimensional model.

D.A. Kort proposed two variable matrix methods for steel sheet pile walls. The first model assumes that a plastic hinge forms when the retaining wall exceeds the maximum bending moment; the second method is primarily applicable to asymmetric beams that can withstand bending in two directions.

Benmebarek et al. utilized the fluid-structure interaction model in FLAC software and an explicit finite-difference solution to comprehensively compare and analyze the factors affecting the stability of steel sheet pile cofferdam structures and the changes in instability mechanisms caused by head loss.

Chad A. Underwood et al. presented four permanent steel sheet pile projects in Minnesota, USA, proposing that steel sheet piles can also achieve economic optimization as permanent support. Steel sheet pile structures facilitate top-down construction, eliminating temporary anchor bolts or sheet pile wall support and significantly shortening construction schedules.

Kevin L. Rens et al. proposed a sustainable approach to the repair and maintenance of ideal steel sheet pile structures. This approach combines on-site testing, CI index, reliability assessment, and environmental LCA impacts. Through CI, reliability, preliminary LCCA, environmental LCA and personal judgment, engineers can independently form a preliminary plan for maintaining the steel sheet pile structure.