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Musta’in Arif
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Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Journal : Journal of Civil Engineering

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ASSESSMENT TO THE PILE BEARING CAPACITY OF INJECTION PILE BASED ON PILE DRIVING ANALYZER AND RE-INJECTION TEST RESULTS (CASE: EASTKAL PENAJAM PROJECT) Trihanyndio Rendy Satrya; Musta’in Arif
Journal of Civil Engineering Vol. 34 No. 2 (2019)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v34i2.7442

Abstract

Injection piling method was used as the main pile driving method at the three warehouses in the Eastkal Penajamproject, Kalimantan, Indonesia. The sub-soil compositions are dominated by clay and sandy soil with very soft to mediumconsistencies. By using injection pile equipment, it is possible to measure the pile bearing capacity from the loading gauge.Since the soil is dominated by clay, the friction capacity overtime will be improved. For that purpose, the piles were re-injectedagain after 3, 10, 11, and 25 days. To establish the forecasting expression of pile bearing capacity enhancement for other piles,non-linear regression analysis was performed. To verify the result, pile driving analyzer (PDA) test for selected piles wascarried out. The results from PDA test were further analyzed by using both direct fields reading in the PDA data logger and theCase Pile Wave Analysis Program (CAPWAP). A linear regression analysis was carried out to complete the blank data due tothe field measurement limitation. In addition to the obtained field data, theoretical analysis of pile bearing capacity with LucianoDecourt method is carried out. From the comparisons of all data, it can be concluded that re-injection pile method provides thehighest safety factor followed by PDA test, CAPWAP analysis, and theoretical design calculation with Luciano Decourt method.
BEHAVIOR GROUPS OF PILE TO VARIATION OF AXIAL OR LATERAL LOAD USE SOFTWARE PLAXIS 2D ON SOFT SOIL Musta’in Arif
Journal of Civil Engineering Vol. 31 No. 2 (2011)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v31i2.7597

Abstract

Refer to Journal “ Numerical Analyses of Load Tests on Bored Piles, 2004” From the research results we can obtained that the conclusion from the Mohr Coulomb material model is more rigid than hardening material model , and the Soft Soil material model is more rigid than Mohr Coulomb material model. It is because there are difference from the formula that used in each methods.This final task goal is to compare some of configuration form of the pile group, in which consist of 2, 3, 4, 6, and 8 piles at one configuration with the distance between 2Ø and 4Ø to keep the axial or lateral load using software Plaxis 2D with material model: Mohr Coulomb, Hardening and Soft Soil. Based on calculation results using Plaxis 2D obtained result that the distance’s changes between piles will cause the addition from the ability of piles to keep axial and lateral load for same load. Then the distance’s changes between piles can reduce the decrease and deflection from piles. This study of the three material models, namely MohrCoulomb. Hardening, Soft Soil has the results of the analysis with the difference ranging from 0-1%.
Co-Authors Trihanyndio Rendy Satrya