An investigating on the soil standard penetration test (SPT) variations, using geostatistical methods in Chehel Baze National Park of Mashhad city, North East of Iran – JBES

Pooria Dehghan, Gholam Reza Lashkaripour, Mohammad Ghafoori, Nasser Hafezi Moghaddas, Mona Hosseinpour Moghaddam

Department of Geology, Faculty of Sciences, International Branch of Ferdowsi University of Mashhad, Iran

Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad, Iran

Key words: Geostatistics, Standard Penetration Test, Kriging, Chehel Baze National Park.

soilAbstract

Nowadays in situ geotechnical tests are used by the geotechnical engineers in a variety of forms. The SPT test, due to the simplicity, low cost, and association with other soil parameters, is using widely in engineering projects. The results of this test are associated with only a point, while the project engineers need information about the whole project area, especially the places with not samples. Therefore, using of geostatistical and interpolation methods to produce maps of soil engineering parameters is very common. In this research, the examined results of SPT in 18 study boreholes within the area of Chehel Baze national park of Mashhad city, according to blows change from 10 to 50, using geostatistical methods and general Kriging tool, the map of SPT changes and the estimation error maps was prepared. According to the results, it seems that geostatistical methods due to the acceptable precision and nature of geotechnical parameters, is a useful tool for predicting the number of SPT for area that tested data is not available.

jbes-vol4no6-p308-3141Get the original articles in Source: Volume 4, Number 6, June 2014 – JBES

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Published By: International Network for Natural Sciences

Related Post: Detection of landscape change (1954-2008) in Isfahan using gradient methods in GIS environment – JBES

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