Document Details

Document Type : Article In Journal 
Document Title :
Experimental Study for Drying-out of Soil Around Underground Power Cables
دراسة معملية للطبقات المجففة حول كابلات القوى الأرضية
 
Subject : Original Works 
Document Language : English 
Abstract : Six types of soil were investigated for studying the drying-out phenomenon and the thermal behaviour of the soil around high power cables. Specific gravity, grain size distribution, permeability and compaction tests were carried out for six types of soil. The measured pF-curves and the recorded distributions of temperature with both time and distance at the stated conditions are presented. Also, the distributions of moisture with distance are given. From the analysis of the temperature distributions with both time and distance; it was found that the temperatures of some soil points are rapidly increased. From the analysis of the measured distributions of moisture with distance, it was also found that all soil points of rapidly increased temperature had approximately zero moisture content. So, the discontinuity found at the measured temperature distributions curves indicated the separation between two zones with high respectively low thermal resistivities or with dry respectively moist soil. Drying-out phenomenon started at 54°C in sand 2 and at 57°C in sands 1 and 3. During heating processes, it was noticed that some types of sand lose their moisture content faster than other sand types. According to the field study of the thermal behaviour of the soil around buried cables, the soil drying-out was found during July and August. This was due to the heat emanating from the cables. This period of year was characterized by a high ambient temperature and zero annual rainfall. 
ISSN : 1319-1047 
Journal Name : Engineering Sciences Journal 
Volume : 9 
Issue Number : 1 
Publishing Year : 1417 AH
1997 AD 
Number Of Pages : 17 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
أسامة السيد جودةO. E. GOUDAResearcher  
عبدالعزيز محمود عبدالعزيز A. M. ABDELAZIZResearcher  
رفاعي أحمد رفاعي R. A. REFAIEResearcher  
زكي مطرZ. MATTERResearcher  

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