Pompina Manullang, 1015011068 (2014) STUDI DAYA DUKUNG PONDASI TIANG BERDASARKAN DATA SPT DAN PDA TEST PADA KONSTRUKSI TANGKI MINYAK. Fakultas Teknik, Universitas Lampung.
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Abstract
ABSTRAK Pondasi adalah suatu bagian dari konstruksi bangunan yang bertugas meletakkan bangunan dan meneruskan beban bangunan atas ke dasar tanah yang cukup kuat mendukungnya. Pada penelitian ini, jenis pondasi yang digunakan adalah pondasi tiang yaitu tiang pancang dan tiang bor, serta struktur atas berupa tangki minyak. Proses analisis menggunakan data sekunder berupa boring log Standard Penetration Test (SPT) dan hasil Pile Driving Analyzer Test (PDA). Perhitungan dimulai dari menganalisis pembebanan dengan Program SAP 2000, menghitung kapasitas daya dukung dengan data penyelidikan tanah, melakukan perbandingan hasil analisis dengan hasil pengujian di lapangan, dan menganalisis stabilitas pondasi dengan menghitung penurunan pondasi. Perhitungan daya dukung pondasi menggunakan metode Meyerhoff. Dengan diameter 60 cm, pondasi tiang pancang memiliki daya dukung ultimit sebesar 805,232 kN dan tiang bor sebesar 684,225 kN. Pada PDA Test daya dukung ultimit didapat sebesar 3.638 kN. Oleh karena itu nilai yang didapat dari perhitungan tidak melebihi batas dan pondasi aman untuk digunakan. Pondasi tiang tidak mengalami penurunan yang besar sehingga memiliki stabilitas yang aman. Kata kunci : tiang pancang, tiang bor, daya dukung ABSTRACT Foundation is a part of construction that used to build up and transfer the upperstructure load to the ground support. In this research, the type of foundation that used are driven pile and bored pile, then the upperstructure is oil tank. The process of analysis used secondary data from Standard Penetration Test (SPT) boring log and the results of Pile Driving Analyzer Test (PDA). The calculation started from analysed the loading with SAP 2000 programme, calculated bearing capacity from soil investigation data, made comparisons between the results of the analysis with the field test, and analysed foundation stability with calculated the settlement foundation. The calculation of bearing capacity foundation used Meyerhoff method. With the diameter 60 cm, driven pile foundation has bearing capacity ultimate 805,232 kN and bored pile 684,225 kN. From PDA Test bearing capacity ultimate obtained 3.638 kN. Therefore, the bearing capacity ultimate obtained from the calculation did not exceed the limit from PDA Test so the foundation safe to used. Pile foundation did not experience big settlement so it has safe stability. Keywords: driven pile, bored pile, bearing capacity
| Item Type: | Other |
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| Subjects: | ?? General ?? |
| Divisions: | ?? Sipil ?? |
| Depositing User: | 932984 . Digilib |
| Date Deposited: | 22 Oct 2014 03:23 |
| Last Modified: | 22 Oct 2014 03:23 |
| URI: | http://digilib.unila.ac.id/id/eprint/4386 |
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