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All Journal Rekayasa Sipil Jurnal Teknik Sipil Jurnal Rekayasa Sipil Borneo Engineering : Jurnal Teknik Sipil TEKNIKA Jurnal Teknik Sipil JURNAL REKAYASA Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil SAINSTEK Indonesian Geotechnical Journal
Gofar, Nurly
Universitas Bina Darma
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Journal : Rekayasa Sipil

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Percepatan Proses Konsolidasi Tanah Lempung Dengan Aplikasi Tekanan Vakum dan Drainase Vertikal arhab; Nurly Gofar
Rekayasa Sipil Vol. 17 No. 3 (2023): Rekayasa Sipil Vol. 17 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.03.12

Abstract

This paper presents the performance of PVD and vacuum consolidation as ground improvement method at the construction of Kayu Agung – Palembang Toll Road. The analysis was based on observation data collected between STA 00+000 and STA 09+000. The PVD was installed to a depth where the conus resistance of 80 kPa was achieved. Thus, the length of PVD varies from 5 to 13 m while the actual depth of clay deposit could reach 20 m. As many as 42 settlement plate data were collected and analyzed using Asaoka method to obtain the predicted final settlement, the coefficient of consolidation and the time to reach 90% degree of consolidation. The results were compared with the duration of vacuum consolidation application and the recorded settlement when the vacuum pressure was stopped i.e., when settlement plate recorded no differential settlement in three readings. The duration of vacuum consolidation application generally longer than the t90 predicted by the method and the actual settlement was larger than the predicted final settlement.  This study concluded that the variation of the t90 and the magnitude of settlement at t90 have close relationship with the length of PVD and the condition of the soil layer.
Co-Authors Agus Feryadi Alfrendo Satyanaga Alfrendo Satyanaga arhab Aswin Lim Desmarita Tarjudin Eka Wisnu Sumantri Elpita Aisah Harnedi Maizir Kassim, Khairul Anuar Khairul Anuar Kassim Nofriandi Fitri Andi Saeman Saeman Wahid Sapta Yudha Fardyansah Yudi Harianto Zul Aslam Zul Aslam