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All Journal Bulletin of Scientific Contribution : Geology Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Teknologi Indonesia
Edi Prasetyo Utomo, Edi Prasetyo
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science

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Journal : Teknologi Indonesia

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HYDROGEOLOGICAL STUDY TO SUPPORT SIGANDUL BRIDGE CONSTRUCTION AT PARAKAN, TEMANGGUNG, CENTRAL JAVA Utomo, Edi prasetyo; Purwoarminta, Ananta
Teknologi Indonesia Vol 38, No 2 (2015)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16.054 KB) | DOI: 10.14203/jti.v38i2.167

Abstract

The plan of making bridge on the Sigandul river in Parakan, Temanggung regency is to improve the quality access roads in the Province of Central Java. The first step was to make the construction of the bridge pillars as the foundation of the bridge. For that purpose it was done drilling with planning a depth of 18 m, but at a depth of 12 m there was out of groundwater in a large discharge. This large groundwater discharge has disturbed the bridge construction process. The aim of this research is to analyze the causes of groundwater discharge and to provide a recommendation on counter measure of disturbance in the process of bridges construction based upon the hydrogeological condition. The methods used in this research were conducting a geological observation on ground surface and geoelectrical measurement with a dipole-dipole electrode arrangement. The results showed that the subsurface of research area is the site of groundwater accumulation and steep slope of its surrounding makes the groundwater came out with high pressure. Discharge rate of groundwater outflow in the area was 91.42 liters per second. Based on these conditions, it is recommended that the process of making a bridge construction should be done by first reducing the groundwater pressure or otherwise moving the foot of bridge the east side.
Co-Authors Ananta Purwoaminta, Ananta Ananta Purwoarminta, Ananta Bani Nugroho, Bani Pulung Arya Pranantya, Pulung Arya Yayat Sudrajat