Experimental Analysis of Backfill Soils

Experimental Analysis of Backfill Soils

Copyright: © 2016 |Pages: 11
DOI: 10.4018/978-1-4666-6509-5.ch005
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Abstract

In this chapter different types of backfill soils are investigated to select the most suitable type of soil that can be used to increase the underground ampacity by selecting the soils that limit the dry zones formation around the underground power cables. The tests carried out on the soils under study are:
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5.1 Soil Samples Under Testing

Several experiments are carried out on different types of natural soils to study the dry out zone formation under different loading condition. In this chapter eight types of natural and artificial soils are investigated and tested for determination of their properties. Tables from 1 until 9 give classification for the investigated soil types.

Table 1.
Soil sample 1: sand 1
Sieve Sieve Size (mm)Mass of Soil Retained-Wn (g)Percentage on Each Sieve RnCumulative Percent Retained
ΣRn
Percent Finer
100- ΣRn
44.75115.211.5211.5288.48
82.36268.626.8638.3861.62
161.18242.524.2562.6337.37
300.6190.619.0681.6918.31
500.30110.411.0492.737.27
1000.1536.33.6396.373.64
Pan-36.43.641000

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