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All Journal Jurnal Teknik Sipil
Maria Septhree Winna Sitohang
Program Studi Magister Teknik Sipil, Universitas Katolik Parahyangan, 40141, Indonesia
Civil Engineering, Building, Construction & Architecture

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Studi tentang Laju Perubahan Volume dan Konsolidasi Tanah Very Soft dan Ultra Soft Berdasarkan Teori Terzaghi dengan Menggunakan Uji Oedometer dan CPTu Maria Septhree Winna Sitohang; Paulus Pramono Rahardjo; Aswin Lim
Jurnal Teknik Sipil Vol 22 No 1 (2026): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v22i1.12973

Abstract

Very soft and ultra soft soils are types of soil with high water content, very soft consistency, and low bearing capacity, making them susceptible to deformation and subsidence due to loading. This study aims to determine the correlation between volume change parameters and consolidation in very soft and ultra-soft soils based on laboratory testing (oedometer test) and in-situ testing (Cone Penetration Test with Pore Pressure Measurement/CPTu). The parameters studied include the consolidation coefficient (Cv), compression index (Cc), volume change coefficient (mv), and parameter α as the correlation between the mv value from the oedometer test and the corrected cone resistance (qt) value from CPTu. The results show that the Cv value varies with each increase in effective stress. Additionally, the consistency of the α correlation values indicates that CPTu can be used to quickly and efficiently estimate volume change coefficient (mv) values in the field. Therefore, CPTu can serve as an alternative for predicting the behavior of very soft and ultra-soft soil conditions in situ in a more representative manner. 
Co-Authors Aswin Lim Paulus Pramono Rahardjo