Perencanaan Alternatif Pondasi Bored Pile dan Spun Pile Untuk Base Oil Tank, Liquid Mud Plant, dan Silo Tank pada Pelabuhan Penajam Banua Taka, Kalimantan Timur

Andirossa, Christian Detiana (2025) Perencanaan Alternatif Pondasi Bored Pile dan Spun Pile Untuk Base Oil Tank, Liquid Mud Plant, dan Silo Tank pada Pelabuhan Penajam Banua Taka, Kalimantan Timur. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada Pelabuhan Penajam Banua Taka di Kabupaten Penajam, Kalimantan Timur dibangun infrastruktur penunjang layanan shore base berupa tangki penyimpanan bahan mentah di atas lapisan tanah lempung lunak dengan nilai SPT kurang dari 4 hingga kedalaman 35 meter, yang berimplikasi pada kapasitas dukung rendah dan potensi penurunan tanah yang besar. Penelitian ini mengevaluasi fondasi tiang pancang (spun pile) eksisting pada tiga area, Base Oil Tank (BOT), Liquid Mud Plant (LMP), dan silo tank, yang menunjukkan ketidaksesuaian antara hasil uji Pile Driving Analyzer (PDA) dengan perhitungan analitis. Diskrepansi ini terutama disebabkan oleh ketidakakuratan data tanah akibat jarak pengujian yang berjauhan dan heterogenitas tanah, sebagaimana terlihat dari variasi hasil uji S-01 dan BH-01, serta potensi keterbatasan intepretasi data tanah dalam analisis program CAPWAP. Berdasarkan hasil perhitungan analitis, perencanaan fondasi eksisting pada area BOT dan silo tank tidak memenuhi syarat keamanan, sebagai solusi ditambahkan spun pile pada perencanaan eksisting. Sebagai alternatif perencanaan, penelitian mengusulkan penggunaan fondasi bored pile dengan diameter 80 cm yang ditanam hingga kedalaman 44-46,5 meter serta fondasi spun pile dengan diameter 50 cm yang ditanam hingga kedalaman 42-45 meter. Hasil analisis membuktikan bahwa solusi alternatif ini mampu memenuhi faktor keamanan daya dukung fondasi sesuai standar API650 dan SNI. Studi komparatif menunjukkan bahwa implementasi penggunaan fondasi spun pile pada ketiga area menawarkan solusi yang lebih ekonomis dibandingkan dengan penggunaan bored pile. Temuan ini memberikan pertimbangan dalam perancangan fondasi optimal untuk infrastruktur pelabuhan pada tanah lunak, dengan mempertimbangkan aspek teknis dan ekonomis.
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At Penajam Banua Taka Port in Penajam Regency, East Kalimantan, supporting infrastructure for shore-based services consists storage tanks on soft clay soil with SPT value of less than 4 to a depth of 35 meters. This results in low bearing capacity and the potential for significant settlement. This study evaluated existing spun pile foundations in three areas: the Base Oil Tank (BOT), the Liquid Mud Plant (LMP), and the silo tank, which showed discrepancies between the results of the Pile Driving Analyzer (PDA) test and analytical calculations. This discrepancy was mainly caused by inaccurate soil data due to the far location of test location to the existing foundation areas and soil heterogeneity, as seen fromthe variations in S-01 and BH-01 test results, as well as potential limitations in interpreting soil data in the CAPWAP program analysis. Analytical calculations indicated that the existing foundation design for the BOT and silo tank areas did not meet safety requirements. Based on the results of analytical calculations, the existing foundation design in the BOT and silo tank areas did not meet safety requirements, as a solution, spun piles were added to the existing design. As an alternative planning, the study proposed the use of bored pile foundations with a diameter of 80 cm planted to a depth of 44-46.5 meters and spun pile foundations with a diameter of 50 cm planted to a depth of 42-45 meters. The analysis results proved that these alternative solutions were able to meet the safety factor of the foundation bearing capacity according to API650 and SNI standards. The comparative study showed that the implementation of the use of spun pile foundations in all three areas offered a more economical solution compared to the use of bored piles. These findings provide considerations in designing optimal foundations for port infrastructure on soft soils, taking into account both technical and economic aspects.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Infrastruktur, Tangki, Spun pile, Bored pile, Pile Driving Analyzer (PDA), Tanks
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA775 Foundations. T Technology > TA Engineering (General). Civil engineering (General) > TA780 Piles and pile-driving
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	Christian Detiana Andirossa
Date Deposited:	29 Jul 2025 04:04
Last Modified:	29 Jul 2025 04:04
URI:	http://repository.its.ac.id/id/eprint/122485

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