Analysis of Substructure Requirements for Railway Bridges at the Indonesian Railway Polytechnic, Madiun
DOI:
https://doi.org/10.37367/jpi.v8i2.307Keywords:
jembatan kereta, CPT (Cone Penetrometer Test), abutmen, pondasi sumuranAbstract
The purpose of railway bridge construction in Politeknik Perkeretaapian Indonesia Madiun (PPIM) is to facilitate student learning. The limitation of the work area causes the abutment dimension, and the deep foundation type should be well considered. This study aims to design the bottom structure of a railway bridge in PPIM. The CPT (Cone Penetrometer Test) data is used to design the bottom structure of the bridge. Soil physical and technical characteristics were determined by the CPT data correlation method. Analysis of bottom structure load and stability refers to Indonesian building regulations. Based on CPT test data, the location of dense soil is 10 m in depth and dominated by sand. The analysis shows abutment base dimension is 6.5 m x 2.7 m in area and 2.2 m in depth. Considering the difficulties of heavy equipment in accessing the work area, the abutment will be supported by a caisson foundation of 80 cm in diameter and an embedded depth of 3 m.
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