Correlation Between SPT and PMT Results for  Sandy and Clayey Soils

Yıldız, Özgür

doi:10.18038/estubtda.896491

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…Bozbey and Toğrol [11] used data of Istanbul soils and developed equations. Yildiz [12] obtained similar correlation coefficients between SPT-N and EPMT, PL of Istanbul soils. Cheshomi and Ghodrati [13] developed correlations for silty sand and silty clays.…”

Section: Introductionmentioning

confidence: 59%

Correlation Study Between PMT and SPT Results of Artificially Filled Area

Yıldız¹

2022

European Journal of Science and Technology

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The non-linear nature of the soils can cause the parameters to change significantly even in a limited area. In site investigation studies, the sampling frequency is important in determining soil properties with sufficient accuracy and in developing an idealized soil profile in which the engineering design will be made. Statistical methods are used in cases where field studies cannot be done adequately due to technical limitations, unsuitability of the study area and cost problems. These methods usually provide important information about the soil at the preliminary design stage. While statistical methods are used by researchers and practitioners to obtain soil parameters, no study has been found in the literature on the use of these methods in artificially filled areas. In this study, the soil parameters of the filled area created in the Yenikapı, İstanbul with an area of 715.000 m 2 were examined. In this context, empirical correlations have been developed between the parameters obtained by the geotechnical tests carried out and the relationships between the soil parameters have been revealed. The data obtained from pressuremeter and standart penetration tests were used in correlations. The developed correlations were compared with the empirical correlations developed for natural soils and important findings were obtained.

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Section: Introductionmentioning

confidence: 59%

Correlation Study Between PMT and SPT Results of Artificially Filled Area

Yıldız¹

2022

European Journal of Science and Technology

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“…For the purpose of liquefaction evaluation [51], in the analysis of soft soil settlement [52], and for the prediction of lateral stress of cohesionless soils [53] SCG-based prediction models were developed. Again, in different problem types and application examples of geotechnology, estimation models with different training algorithms displayed successful results [54][55][56][57].…”

Section: Prediction Modelmentioning

confidence: 98%

Use of a Biopolymer for Road Pavement Subgrade

et al. 2023

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This paper presents an extensive series of laboratory works and a prediction model on the design of a road pavement subgrade with Xanthan Gum (XG) biopolymer. The experimental works were carried out using mixtures of conventional aggregate for road pavement construction and XG at the ratios of 0%, 1%, 2%, and 5%, by dry weight. Unconfined compressive strength (UCS) and California bearing ratio (CBR) tests were conducted during the experimental works at the end of the various curing periods (4, 8, 16, and 32 days). An example of an improvement in the UCS values for a specimen with 5% XG addition tested at the end of 4-daycuring yields about a 200% increment by the end of a 32-daycuring. The CBR values of clean aggregates were found to be increased by about 300% by 5% XG addition for all curing periods applied. Furthermore, the energy absorption capacity of the aggregates was observed to be increased significantly by both XG inclusion and curing period. Moreover, scaled conjugate gradient (SCG) training algorithm-based models developed for the prediction of CBR and UCS test results displayed a very high estimation performance with the regression coefficients of R2 = 0.967 and R2 = 0.987, respectively. Evidently, XG biopolymer is provably of use as an alternative inclusion in road pavement subgrades constructed with conventional aggregates.

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Correlating Measured SPT-N, Shear Wave Velocity and Liquid Limit Values in Melekli Region, Igdır (Türkiye)

Guzel

2024

Journal of Advanced Research in Natural and Applied Sciences

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Characterization of soil layers underneath or having interaction with structures is substantially critical for the overall stability of structures under static and dynamic conditions. The main objectives in characterizing soil are mainly to determine ultimate bearing capacity, settlement and liquefaction potential. Additionally, the dynamic behavior of soil during seismic excitation, as well as its interaction with structures, should be determined. In these regards, Standard Penetration Test blow counts (SPT-N) and shear wave velocity (Vs) values of soils obtained directly through field tests are known to reflect the soil characteristics, strongly. Therefore, any correlation between these two soil parameters is always in utmost interest. This study assesses the correlation between Vs and SPT-N values measured in Melekli region, Igdır (Türkiye). Moreover, four existing correlations in the literature are presented. The best-fit curve for the measured data is shown to divert from the existing correlation curves, which are also significantly different from each other, for all soils, sand and clay soils. This can be attributed to the uniqueness of correlation to the study site as geological conditions at one site differ extensively from another site. There seems to be valuable correlation between Vs and water content and liquid limit in the studied area.

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Correlation Between SPT and PMT Results for Sandy and Clayey Soils

Cited by 3 publications

References 18 publications

Correlation Study Between PMT and SPT Results of Artificially Filled Area

Correlation Study Between PMT and SPT Results of Artificially Filled Area

Use of a Biopolymer for Road Pavement Subgrade

Correlating Measured SPT-N, Shear Wave Velocity and Liquid Limit Values in Melekli Region, Igdır (Türkiye)

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