Analisa Daya Dukung Pondasi Bored Pile Dengan Pendekatan Analitik Dan Numerik Berdasarkan Karakteristik Hasil Pengukuran Resistivitas Dan Uji Geoteknik (Studi Kasus: Pembangunan Jalan Tol Pasuruan-Probolinggo Seksi IV STA 37+742).

Santoso, Faried Abdillah (2022) Analisa Daya Dukung Pondasi Bored Pile Dengan Pendekatan Analitik Dan Numerik Berdasarkan Karakteristik Hasil Pengukuran Resistivitas Dan Uji Geoteknik (Studi Kasus: Pembangunan Jalan Tol Pasuruan-Probolinggo Seksi IV STA 37+742). Other thesis, Institut Teknologi Sepuluh Nopember.

Text 03411840000024-UNDERGRADUATE_THESIS.pdf Restricted to Repository staff only Download (6MB)

Abstract

Pembangunan struktur jembatan pada sistem jalan tol merupakan tahapan yang memerlukan perhatian khusus terhadap standar-standar yang telah ditetapkan. Salah satunya yaitu terkait dengan struktur pondasi yang digunakan. Analisis pondasi bertujuan untuk mengetahui daya dukung pondasi tersebut terhadap beban yang mampu ditopang agar struktur jembatan tidak mengalami kerusakan akibat keruntuhan geser (shear failure) dan penurunan (settlement) yang melebihi batas izinnya. Analisis kapasitas daya dukung struktur pondasi terhadap beban yang diterima pada bagian ujung tiang dan selimut tiang menggunakan pendekatan numerik dan analitik. Pendekatan analitik menggunakan data hasil pengukuran resistivitas 1 dimensi dan hasil pengujian geoteknik. Data soil resistivity yang dihasilkan dikorelasikan dengan hasil pengujian geoteknik berupa nilai N-SPT dan bertujuan untuk mengetahui dan memodelkan stratigrafi litologi bawah permukaannya. Berdasarkan hasil korelasi, penampang litologi bawah permukaan area penelitian terbagi menjadi 4 jenis lapisan yaitu silty clay, silty sand, sand, serta lapisan gravely sand hingga kedalaman 20-30 meter yang merupakan lapisan tanah keras dan dijadikan kedalaman ujung dari pondasi. Model tersebut kemudian digunakan untuk melakukan analisis daya dukung pondasi bored pile secara analitik dengan menggunakan metode Luciano Decourt dan numerik dengan melakukan permodelan sesuai kondisi litologi. Hasil dari dua perhitungan tersebut diperoleh bahwa daya dukung pondasi ultimit (Qult) dan daya dukung izin (Qall) relatif sama. Selain nilai daya dukung pondasi, nilai SF (safety factor) yang dihasilkan lebih dari batas minimum 3.00 yaitu 5.37 dan 5.33. Persentase kecocokan antara dua metode tersebut masing-masing 93% untuk abutment 1 dan 91% untuk abutment 2, sehingga data tersebut dapat digunakan sebagai acuan atas ketidakpastian dalam metode pendekatan yang digunakan, sebagai parameter keamanan terhadap variasi kuat geser dan penurunan (settlement) agar tetap dalam batas kapasitas izinnya.
===================================================================================================================================
The construction of bridge structures on the toll road system is a one of many phases that requires special attention to the standards that have been set. One of them is related to the foundation structure used. Foundation analysis aims to determine the bearing capacity of the foundation against the load that can be supported so that the bridge structure does not suffer damage due to shear failure and settlement that exceeds the permit limit. Analysis of the bearing capacity of the foundation structure against the load received at the tip of the pile and along its pile shaft using numerical and analytical approaches. The analytical approach uses data from 1-dimensional resistivity measurements and geotechnical test results. The result of resistivity aquisition is correlated with the results of geotechnical testing in the form of N-SPT values and aims to identify and model the subsurface lithological stratigraphy. Based on the correlation results, the subsurface lithology section of the research area is divided into 4 types of layers, namely silty clay, silty sand, sand, and gravely sand layers to a depth of 20-30 meters which are hard soil layers and are used as the tip depth of the foundation. The model is then used to analyze the carrying capacity of the bored pile foundation analytically using the Luciano Decourt method and numerically by modeling according to lithological conditions. The results of the two calculations show that the ultimate foundation bearing capacity (Qult) and permit bearing capacity (Qall) are relatively the same. In addition to the value of the foundation bearing capacity, the resulting SF (safety factor) value is more than the minimum limit of 3.00, namely 5.37 and 5.33. The percentage of fit between the two methods is 93% for abutment 1 and 91% for abutment 2, so that the data can be used as a reference for uncertainty in the approach method used, as a safety parameter against variations in shear strength and settlement so that it remains stable. within its permit capacity.

Item Type:	Thesis (Other)
Additional Information:	RSGf 624.154 San a-1 2022
Uncontrolled Keywords:	Bored Pile, Daya Dukung, Luciano Decourt, Resistivitas, Standard Penetration Test (SPT). Bearing Capacity, Bored Pile, Luciano Decourt, Standard Penetration Test (SPT), Vertical Electrical Sounding (VES).
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	21 May 2026 05:55
Last Modified:	21 May 2026 05:55
URI:	http://repository.its.ac.id/id/eprint/133307

Actions (login required)

View Item