Abstract
This study aims to analyze the deflection behavior of the sheet pile through experimental testing and numerical analysis using the Finite Element Method (FEM). The Laboratorium scale test on a Tub with length of 1500 mm, width of 600 mm, and height of 1500 mm, and Steel Plate 3.2 mm with dimensions of 1400 mm x 590 mm was used as a model of the sheet pile wall. The subgrade material is clay soil and embankment material in the form of Sirtu which passes the No. sieve. 40. Physical and mechanical testing of soil and gravel materials is carried out with reference to ASTM standards. The measurement of the value of the strip load (q) and deflection was carried out using a load cell with a capacity of 100 kN and a linear variable differential transformer (LVDT). The deflection of the sheet pile was using was analyzed using Plaxis 8.2 software of the FEM method. The results of laboratory tests show that the pile wall collapses at a load of 74 kN/m2, with a deflection of 24.56 mm, while the FEM analysis shows that the pile wall collapses at a load of 71 kN/m2 with a deflection of 21.29 mm.
Highlights
The retaining structure is generally applied in the land expansion works in steep areas, reclamation works in coastal and port areas, supporting soil in basement excavation work, and abutment structures on bridges
The results of laboratory tests show that the pile wall collapses at a load of 74 kN/m2, with a deflection of 24.56 mm, while the Finite Element Method (FEM) analysis shows that the pile wall collapses at a load of 71 kN/m2 with a deflection of 21.29 mm
From the mapping of soil types referring to the ASTM D2487 standard, the soil samples in this study can be classified as sandy fat clay with high plasticity (CH, sandy fat clay)
Summary
The retaining structure is generally applied in the land expansion works in steep areas, reclamation works in coastal and port areas, supporting soil in basement excavation work, and abutment structures on bridges. Sheet pile walls are a flexible type of slope reinforcement that has advantages in terms of fast construction, lightweight, high resistance to driving pressure, and long service life for conditions above and below the water surface [2]. This technical advantage encourages the use of sheet pile walls in various constructions with many types of constituent materials, such as wood, concrete, and steel
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