DHANI, FAIZ ASSYFA NUR RAHMAT (2026) EVALUASI DAYA DUKUNG FONDASI PADA PROYEK PEMBANGUNAN GEDUNG 13 LANTAI DI JAKARTA SELATAN. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Pembangunan gedung 13 lantai di Jakarta Selatan menghadapi tantangan geoteknik yang signifikan akibat kondisi tanah yang didominasi oleh lapisan lempung lunak, lanau, dan pasir halus dengan stratigrafi yang kompleks serta tingkat kejenuhan tinggi. Kondisi tersebut menuntut evaluasi daya dukung fondasi yang komprehensif guna menjamin stabilitas struktur, mencegah penurunan berlebih, dan meminimalkan risiko kegagalan akibat beban statis maupun dinamis. Penelitian ini bertujuan untuk mengidentifikasi karakteristik tanah berdasarkan data investigasi lapangan dan laboratorium, mengevaluasi kapasitas daya dukung fondasi eksisting, membandingkan alternatif desain fondasi dalam, serta menganalisis potensi penurunan dan likuifaksi. Metode penelitian yang digunakan adalah studi kasus dengan pendekatan kuantitatif melalui analisis data Standard Penetration Test (SPT), Cone Penetration Test (CPT), serta pengujian laboratorium tanah. Perhitungan daya dukung dilakukan menggunakan metode Meyerhof, Schmertmann (1967), dan Reese & Wright dengan mengacu pada SNI 8460:2017. Variabel penelitian meliputi nilai N-SPT terkoreksi, kohesi tak terdrainase (Cu), sudut geser dalam (φ), berat isi jenuh (γsat), diameter dan kedalaman tiang, kapasitas ultimit dan izin, efisiensi kelompok tiang, serta besaran penurunan elastik. Hasil analisis menunjukkan bahwa fondasi bored pile dengan variasi diameter 600 mm dan 800 mm pada kedalaman optimal mampu memenuhi kapasitas daya dukung izin dengan faktor keamanan yang disyaratkan serta menghasilkan penurunan dalam batas toleransi. Evaluasi likuifaksi menunjukkan tingkat kerentanan rendah hingga sedang pada lapisan tertentu. Berdasarkan hasil tersebut, fondasi bored pile direkomendasikan sebagai alternatif desain yang paling aman dan efektif untuk kondisi tanah lokasi penelitian. The construction of a 13-story building in South Jakarta faces significant geotechnical challenges due to subsoil conditions dominated by soft clay, silt, and fine sand layers with complex stratigraphy and high saturation levels. These conditions require a comprehensive evaluation of foundation bearing capacity to ensure structural stability, prevent excessive settlement, and minimize the risk of failure under static and dynamic loads. This study aims to identify soil characteristics based on field and laboratory investigation data, evaluate the bearing capacity of the existing foundation system, compare alternative deep foundation designs, and assess potential settlement and liquefaction. The research adopts a case study approach with quantitative analysis based on Standard Penetration Test (SPT), Cone Penetration Test (CPT), and laboratory soil test data. Bearing capacity calculations were performed using the Meyerhof, Schmertmann (1967), and Reese & Wright methods in accordance with SNI 8460:2017. The research variables include corrected N-SPT values, undrained shear strength (Cu), internal friction angle (φ), saturated unit weight (γsat), pile diameter and depth, ultimate and allowable capacities, pile group efficiency, and elastic settlement. The results indicate that bored pile foundations with diameters of 600 mm and 800 mm at optimal depths are capable of meeting the required allowable bearing capacity and safety factors, while producing settlements within permissible limits. Liquefaction analysis shows low to moderate susceptibility in certain soil layers. Therefore, bored pile foundations are recommended as the safest and most effective design alternative for the site conditions.
| Item Type: | Thesis (S1) |
|---|---|
| NIM/NIDN Creators: | 41122010085 |
| Uncontrolled Keywords: | Daya Dukung Fondasi; Bored Pile; Likuefasi; Kapasitas Ultimit; Penurunan Elastik. |
| Subjects: | 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 620.1-620.9 Standard Subdivisions of Engineering and Applied Operations/Subdivisi Standar Dari Ilmu Teknik dan operasi Terapan > 620.3 Mechanical Vibrations/Getaran Mekanis 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 624 Civil Engineering/Teknik Sipil > 624.1 Structural Engineering and Underground Construction/Teknik Struktural dan Konstruksi Bawah Tanah |
| Divisions: | Fakultas Teknik > Teknik Sipil |
| Depositing User: | Haqi ar rachma nur |
| Date Deposited: | 02 Apr 2026 04:37 |
| Last Modified: | 02 Apr 2026 04:37 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/101485 |
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