Tinjauan Perilaku Perkuatan Pasir Menggunakan Ijuk Terhadap Pemodelan Likuifaksi. (Sand Strength Analysis Using Palm Fiber Towards Liquefaction Modeling )

-, Yelvi and Suardi, Enita and Partawijaya, Yan and -, Lusyana (2011) Tinjauan Perilaku Perkuatan Pasir Menggunakan Ijuk Terhadap Pemodelan Likuifaksi. (Sand Strength Analysis Using Palm Fiber Towards Liquefaction Modeling ). POLI REKAYASA, 7 (1). pp. 64-72. ISSN 1858-3709

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Abstract

Liquefaction is the process of changing conditions of water-saturated sandy soil into a liquid, due to increased pore water pressure value becomes equal to the total pressure because of the occurrence of dynamic loads, so the effective pressure becomes ground zero (Seed et al, 1982). According to Adrin Tohari, the terms of the occurrence of events liquefaction must meet five criteria namely the soil layer of sand or silt, a layer of water-saturated soil, the soil layer is decomposed or loose (not solid), earthquakes must be strong and long. Utilization of the fibers to be mixed in the soil of sand is expected to overcome liquefaction events. Soil testing conducted in the laboratory of Civil Engineering Department, Polytechnic Padang. Soil samples taken in the area of ​​Air Tawar Barat, Padang with disturbed soil. Tests carried out include the physical properties (water content, Specific Gravity, Weight Volume, and Sieve Analysis). Testing is only done for the physical properties of native soil alone. Proceed to make a table vibrator with two types of test samples of miniature houses and sand tower. Vibration strength given in the table vibrator is 7.5 V, 9 V and 12 V. Percentage levels of fibers for miniature house is 0% and 0.1%, while the percentage content of the fibers to the tower of sand is 0%, 0.1%, 0.15%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8% , and 0.9%. Based on the test results can be concluded that the addition of palm fiber content can reduce the impact of liquefaction. When that occurs when a house collapsed on a miniature palm fiber content 0% (9 V) is 0.19 minutes and at levels of 0.1% fibers (9 V) to 0.35 minutes. The addition of palm fiber content can also add strength to withstand the vibrations of sand in a given (7.5 V, 9 V and 12 V). The optimum level of fibers is 0.8%, because the levels of 0.9% strength of sand, the tower collapse rapidly within 1.45 menit.

Item Type:Article
Subjects:G Technology > GD Highway engineering. Roads and pavements
Divisions:Jurusan Teknik Sipil > Prog.Studi Teknik Sipil-D3 > Jurnal/Karya Ilmiah
ID Code:381
Deposited By:Mr. OP Repo-1 Puskom
Deposited On:27 Oct 2016 09:37
Last Modified:09 Nov 2016 14:00

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