Expansive soils commonly
exist in the arid and semi-arid regions of the world. Climate changes depending
on these soils moisture content variation and this causes large volume changes.
Although there are some methods developed for use in design of slabs resting on
expansive soils, project planning information is needed locally in regions
where this type of soil exists. The most important one of this knowledge is
moisture index. For this purpose, many moisture index calculations are given in
literature. In this study, to calculate Thornthwaite Moisture Index (TMI)
described by Thornthwaite (1948), rainfall and temperature records for an average period of sixty-three years of 81 stations
of Turkey were received from General Directorate of Meteorology. Later TMI
values belonging to each station are calculated by arranging these values in
tables. As a result of this comprehensive study, the values of TMI determined
for each station are used to design slabs resting on expansive soil and TMI map
of the area by using
Geostatistical Analyst
Module of ArcGIS 10.0 software and
Kriging interpolation method. The results of Geographic Information System (GIS) analyses for this area point out that the
analyses based on a lot of data introduce meaningful results for this study. The
study provides climate of region, soil parameters related to structure to be
taken into account in design of slabs resting on expansive soils and a
reference is put forward for utilization of geotechnical engineers working in
practice.
Primary Language | English |
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Subjects | Civil Engineering |
Journal Section | Articles |
Authors | |
Publication Date | November 1, 2018 |
Submission Date | March 22, 2018 |
Published in Issue | Year 2018 Volume: 29 Issue: 6 |