| Title: | Use of a Perth sand penetrometer (PSP) device to determine the engineering parameters of sands |
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| Authors: | ID Mohammadi, S. D. (Author)
ID Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Copyright holder) |
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| Files: |  Acta_geotechnica_Slovenica_2016_Mohammadi_Use_of_a_Perth_sand_penetrometer_(PSP)_device_to_determine_the_engineering_parameters_of_sands.pdf (580,07 KB)
MD5: 1667188EC0C1A9060B0A804965A6F134
PID: 20.500.12556/dkum/8fcbcf65-9406-46bd-b862-27e348c5c0b1
 http://fgserver3.fg.um.si/journal-ags/2016-1/article-7.asp
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
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| Abstract: | Determining the in-situ engineering parameters of sandy soils has always been a challenge for geotechnical engineers, resulting in several methods having been developed so far. The Perth Sand Penetrometer (PSP) test is one of the most versatile of these methods. It is a considerably faster and cheaper tool than boring equipment, especially when the depth of the exploration is moderate. In the present research, a methodology for the use of a PSP device to evaluate the engineering parameters of sandy soils in laboratory conditions is discussed and the repeatability of the test results is studied. First of all, the tests were performed on typical Tehran young alluvial deposits (poorly graded sandy soil, SP) consistently prepared to 5 densities using the sand raining or pluviation technique. Next, the normal and logNormal distributions of the test data using the Kolmogorov-Smirnov normality test were examined. After that, based on the obtained results, the relationship types between the dynamic point resistance index (qd) and other parameters, such as the relative density (Dr), the modulus of elasticity (E), the shear modulus (G) and the friction angle of the soil, were determined. The results show that the obtained relationships were semi-logarithmic and logarithmic, and most of the obtained experimental formulas had a high coefficient of determination (>90%). To evaluate the accuracy of the results, 95% confidence and prediction bands were also used and the results show that all the obtained experimental relationships were appropriate. Finally, the repeatability of the test results was evaluated by calculating the coefficient of variations, which was less than 30% for all the tests. |
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| Keywords: | dynamic-point resistance index (qd), engineering parameters, repeatability, statistical methods |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2016 |
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| Number of pages: | str. 77-87 |
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| Numbering: | Letn. 13, št. 1 |
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| PID: | 20.500.12556/DKUM-70873  |
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| ISSN: | 1854-0171 |
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| ISSN on article: | 1854-0171 |
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| COBISS.SI-ID: | 302912256 |
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| NUK URN: | URN:SI:UM:DK:JNQA16QL |
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| Copyright: | Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru |
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| Publication date in DKUM: | 18.06.2018 |
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| Views: | 1118 |
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| Downloads: | 224 |
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| Metadata: |    |
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| Categories: | Misc.
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