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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Jurnal Konstruksia REKAYASA Journal of Advanced Civil and Environmental Engineering RACIC : Rab Construction Research AGREGAT Jurnal Aplikasi Teknik Sipil Jurnal Pensil : Pendidikan Teknik Sipil EPI International Journal of Engineering Nusantara Science and Technology Proceedings Extrapolasi Jurnal Teknik Sipil AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) KERN : Jurnal Ilmiah Teknik Sipil Jurnal Talenta Sipil JITSi : Jurnal Ilmiah Teknik Sipil RESLAJ: Religion Education Social Laa Roiba Journal Journal of Civil Engineering and Vocational Education Advance Sustainable Science, Engineering and Technology (ASSET) Media Konstruksi : Jurnal Ilmiah Teknik Sipil Jurnal Abdi Karya Sipil Jurnal Ilmiah Teknik Sipil Open Access DRIVERset
Dian Purnamawati Solin
Civil Engineering Department, Faculty Of Science And Technology, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya, Indonesia.
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Analysis of Foundation Modification with Enlarged Base for Eight-Story Oncology Building at RSUD Haji Surabaya: Analisis Modifikasi Fondasi dengan Pembesaran Ujung pada Bangunan Gedung Onkologi 8 Lantai Rsud Haji Surabaya Salsabila Aulia; Arasi Arahman; Solin Dian Purnamawati
EXTRAPOLASI Vol. 23 No. 01 (2026)
Publisher : Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/ep.v23i01.132970

Abstract

The projected rise in cancer cases in Indonesia, expected to exceed 70% by 2050, underscores the need for accelerated development of healthcare infrastructure, including the Oncology Building at RSUD Haji Surabaya. The presence of soft clay soil at the site requires a foundation system capable of maintaining structural stability and limiting settlement. This study examines the performance of pile group foundations within a raft system through numerical analysis using the Luciano Decourt and Converse–Labarre methods, supported by Allpile simulations, under two design scenarios: an existing foundation without base enlargement and a modified design featuring pile base enlargement.The numerical evaluation shows that the existing configuration provides allowable capacities of 213.91 ton for a single pile and 12,025.79 ton for the pile group, with settlements of 5.22 cm and 11.48 cm. After base enlargement, allowable capacities increase to 330.63 ton and 18,588.17 ton, accompanied by reduced settlements of 1.37 cm and 6.07 cm. Allpile simulations similarly show improved performance, from 17,345.78 ton to 24,731.68 ton after modification.These findings confirm that pile base enlargement significantly enhances bearing capacity and effectively controls settlement, making it a suitable solution for structures on low-strength clay deposits.
Co-Authors Abidin Isa Alhabsyi, Ali Zainal Ahmad Yusuf Habibur Rouf Albar, Aldino Maulana Alfin Reza Saputra Alfin Alivia Wulan Yufika Andini Chaerania Arasi Arahman Arasi Arahman Arraya Fredericko Romanza Aryaseta, Bagas Astawa, Made Dharma Dini Oktavia Dio Alif Hutama Fithri Estikhamah Griselda Junianda Velantika Haryono, Muhammad Iqbal Yefa Imam Hendrata Wibisana Himatul Farichah Himatul Farichah Hoang-Khanh Le Jovanda Anggie Hirza Rivansyah Karina Jelita Putri Karina Meilawati Eka Putri Lutfiah, Ine M. Yusril Inza Mahendra Made Dharma Astawa Mochammad Nouval Diva Ramadhan Mochammad Nouval Diva Ramadhan Muhammad Fauzi Jatmiko Muhammad Wildan Naufal Angger Wasesa Nugroho Utomo Nugroho Utomo Nulya M, Anisya Aura Pare, Jeremy Rumbaya Kondo Primasari Cahya Wardhani Putri, Karin Dwi Jayanti Salsabila Aulia Salva Achmad Lail Saputra, Alfin Reza Sefrina, Ani Siti Zainab Siti Zainab, Siti Sukmawati, Eka Vio Aditya Pratama Wijaya Wulandari, Malinda Yerry Kahaditu Yerry Kahaditu Firmansyah Yulia Putri Ramadhani