TINJAUAN ULANG DAYA DUKUNG DAN PENURUNAN PONDASI BORED PILE PADA PEMBANGUNAN JALAN LAYANG KAPT. TENDEAN – BLOK M – CILEDUK, PAKET SANTA SECTION P10 – P11

Abstract

ABSTRACT

Foundation is one of important component for fly over construction, since the foundation, it would retain working loads at above. Soil investigation is very required to design a foundation, especially bor-logging to make sure a depth of hard layer. Because of this project has the depth of hard layer more than 20 meters, it ought to use pile foundation. Bor-Pile is selected because it could be fit to condition around the project. Recalculation is performed on fly over construction project of Kapt. Tendean – Blok M – Cileduk, Package of Santa Section P10 - P11. Calculation of foundation bearing capacity and settlement is conducted apply manual using Terzaghi and Meyerhof methods and also Allpile software computer program. Calculation of foundation bearing capacity for one pile at P10 using Terzaghi and Meyerhof methods according to SPT P10 data resulted Qall= 580,6 ton, and SPT P11 found Qall= 751,5 ton. Calculation of group pile foundation using efficiency value of Converse-Labarre methods at P10 equal 0,82 is obtained Qpg = 1911,2 ton while at P11 with efficiency value equal 0,75 is resulted Qpg = 2277,9 ton. Settlement group pile foundation at P10 Sg = 8,1 cm and at P11 Sg = 8,86. Based on results from Allpile software at P10 is obtained Qall = 754,1 ton, Qpg = 3016,7 ton , at P11 Qall = 392,5 ton, Qpg = 515,9 ton. Settlement group pile foundation at P10 = 0,15 cm and at P11 = 0,56 cm.

Keywords: Foundation, bored pile, Allpile

ABSTRAK

Pondasi menjadi komponen penting untuk konstruksi jalan layang, karena pondasi yang akan menahan beban yang bekerja diatasnya. Penyelidikan tanah sangat diperlukan untuk merencanakan pondasi, terutama penyelidikan bor untuk memastikan kedalaman tanah keras. Karena pada proyek ini, kedalaman tanah keras lebih dari 20 meter, maka harus digunakan pondasi tiang. Pondasi bored pile dipilih karena menyesuaikan dengan keadaan di sekeliling proyek. Tinjauan ulang dilakukan pada Proyek Pembangunan Jalan Layang Kapt.Tendean – Blok M – Cileduk, Paket Santa Section P10-P11. Perhitungan daya dukung dan penurunan pondasi dilakukan dengan metode manual menggunakan metode Terzaghi dan Meyerhof dan menggunakan program komputer Allpile. Perhitungan daya dukung pondasi satu tiang P10 metode Terzaghi dan Meyerhof berdasarkan data SPT P10 Qall = 580,6 ton, SPT P11 Qall = 751,5 ton. Perhitungan pondasi tiang kelompok berdasarkan nilai efisiensi metode Converse-Labarre P10 = 0,82 didapatkan Qpg = 1911,2 ton sedangkan P11 = 0,75 didapatkan Qpg = 2277,9 ton. Penurunan pondasi tiang kelompok P10 Sg = 8,1 cm dan P11 Sg = 8,86. POLITEKNOLOGI VOL. 16 No. 1 JANUARI 2017
Berdasarkan Hasil dari output Allpile pada P10 didapat Qall =754,1 ton, Qpg = 3016,7 ton , P11 Qall = 392,5 ton, Qpg = 515,9 ton. Penurunan kelompok P10=0,15 cm dan P11=0,56 cm.

Kata kunci: Pondasi, bored pile, Allpile