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Effect of the oil spill on soil compressibility properties

Effect of the oil spill on soil compressibility properties / Muhammad Nazrin Shah Mohd Asri
Minyak atau bahan api biasanya digunakan untuk kenderaan, pemanasan dan sumber penjanaan rumah dan industri, menjana tenaga elektrik, dan sebagai bahan yang digunakan untuk industri kimia. Oleh kerana keperluan minyak semakin meningkat dari masa ke masa, minyak dipindahkan dalam kuantiti yang besar dari kawasan pengeluaran ke kawasan minyak diperlukan. Minyak digerudi dan diekstrak dari tanah, ditapis, diangkut dan disimpan. Minyak mungkin tertumpah semasa proses ini. Tumpahan boleh berlaku di darat atau air apabila minyak tidak dipindahkan dengan betul, semasa kemalangan kereta api atau trak, kapal tangki berlanggar, semasa pembersihan tangki kapal, dan apabila simpanan minyak meresap secara semula jadi. Objektif utama kajian ini adalah untuk mengkaji kesan tumpahan minyak dalam struktur tanah dan sifat-sifat kebolehmampatan tanah-tanah yang tercemar. Sifat-sifat kejuruteraan sampel tanah telah disiasat melalui ujian makmal untuk menentukan sifat tanah itu. Enam ujian sampel (50% air, 50% diesel, 75% air, 75% diesel, OMC air dan OMC diesel) oleh tepu daripada hasil Ujian Standard Proctor. Keputusan ini kemudiannya dibandingkan dengan menyiasat perubahan ketinggian, pekali pengukuhan, pekali kebolehmampatan isipadu, nisbah lompang, masa penyatuan di 90% tepu, indeks mampatan dan kadar penyatuan antara air dan bahan api diesel. Apabila air telah digantikan dengan bahan api diesel, terdapat kenaikan pada indeks mampatan. Tanah yang tercemar dengan minyak memerlukan masa yang lebih lama untuk tepu berbanding air. Ini disebabkan oleh kebolehmampatan yang tinggi diesel yang menjadikan ia sukar untuk menjadi tepu. Bahan api diesel mempunyai nisbah lompang yang lebih tinggi berbanding dengan air walaupun terdapat peningkatan beban. Kandungan diesel yang terdapat dalam struktur tanah melonggarkan struktur tanah kerana kelikatan yang lebih tinggi diesel berbanding air. _______________________________________________________________________________________________________ Oil or fuel are commonly used for vehicle, heating and powering source for houses and industry, generate electricity, and as a material used for the chemical industry. As the requirement for oil increase over time, huge quantities of the oil are moved from production areas to where the oil is used. Oil are drilled and extracted from the ground, filtered, transported and stored. Oil might be spilled during this process. Spills can take place on land or water when oil is incorrectly transported, railway or truck accidents, tankers or barges collide, during the cleaning of tankers, and when natural oil deposits seep. The primary objective of this study is to investigate the effect of oil spill on soil settlement and the soil compressibility properties of the contaminated soil. The engineering properties of the soil sample were investigated through laboratory tests to determine its soil properties. 6 trials samples (50% water, 50% diesel, 75% water, 75% diesel, OMC water and OMC diesel) by saturation from the result of Standard Proctor Test. These results were then compared to investigate the settlement, coefficient of consolidation, coefficient of volume compressibility, void ratio, time of consolidation at 90% consolidation, compression index and rate of consolidation between water and diesel fuel. As water was replaced with diesel fuel, the compression index increases. Whereas the coefficient of consolidation of soil sample decreases as the water is replaced with diesel fuel. The contaminated soil required longer time to consolidate compared to water. This is due to the high compressibility of diesel that makes it difficult to consolidate. Diesel fuel has higher void ratio compared to water even when the load increases. Diesel content present in the soil structure loosen the soil structure due to the higher viscosity of diesel.
Contributor(s):
Muhammad Nazrin Shah Mohd Asri - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875005560
Language:
English
Subject Keywords:
fuel; vehicle; industry
First presented to the public:
6/1/2015
Original Publication Date:
7/17/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 84
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-07-17 16:30:09.612
Submitter:
Mohd Jasnizam Mohd Salleh

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