Int. J. Advanced Structures & Geotechnical Engineering
ISSN 2319-5347, ISI Impact Factor: 0.763
VOLUME 03 NO. 02 APRIL 2014:
Title:
Effect on permeability and shear strength with
the variation of grain size of sand
Authors: Sohana Afreen, Md.
Abul Bashar
Abstract:
Permeability and shear strength are very
important properties of a soil which are affected by
grain size of soil particles. For the improvement of
soft soil sometimes sand pile are used. The main
objective is to investigate which type of sand is more
suitable for sand pile economically. in this project, an
attempt is made to relate permeability and frictional
angle with the properties of grain size of soil such as
effective size (d10), mean particle size etc. the
properties of grain size can be found out from gradation
curve. The results of coefficient of permeability vary
from 1× 10-3 to 15× 10-3. The permeability increased
significantly with the increase of mean particle size
and effective size of sand. Frictional angle increased
with the increase of permeability of soil but the
variation is very insignificant. Shear strength also
increased with the increase of mean particle size but
the variation is also insignificant in this case. as the
changes of value of frictional angle is negligible with
the changes of size of sand from fine sand to coarse
sand, local sand may be used with certain percentages of
Kushtia sand in lieu of percentages of Sylhet sand in
case of designing sand pile economically.
Keywords:
Permeability, Sand Drain, Shear Strength,
Frictional Angle, Local Sand
Page No: 69-74