Determination of Shear Strength Parameters Using Screw Driving Sounding (SDS)

Mirjafari, Seyed Yasin; Orense, Rolando P.; Suemasa, Naoaki

doi:10.1061/9780784481486.043

Cited by 4 publications

(13 citation statements)

References 2 publications

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“…Screw Driving Sounding (SDS) is a relatively new field characterization technique [4][5][6][7][8][9]. It is a recently developed technique in Japan and is a modified version of the SWS method of field characterization [3].…”

Section: Introductionmentioning

confidence: 99%

“…The SDS technique is carried out by SDS machine, which is fully automated and potable. The test is quick, relatively cheap, requires small space for operation and gives continuous soil profile [4][5][6][7]. However, the standard and initial form of SDS machine was only applicable for soft to medium stiff clays and loose to medium dense sand.…”

Section: Introductionmentioning

confidence: 99%

“…While dealing with clay, there are some relations to predict shear strength parameters and SPT number of blows (N) from SDS parameter by empirical equations from various research [3,5,7,14]. These equations were obtained from the Japanese alluvial clay and New-Zealand (clay and plastic silt), respectively.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Correlation between Engineering Properties of Bangkok Clay and Penetration Resistance of Screw Driving Sounding (SDS)

Shah¹,

Soralump²

2022

cea

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Correlation between Engineering Properties of Bangkok Clay and Penetration Resistance of Screw Driving Sounding (SDS)

Shah¹,

Soralump²

2022

cea

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“…Some theoretical and empirical relationships between the SDS data and various soil properties have been developed. For example, soil classification charts based on SDS-derived parameters have been developed [3,4] and further refined with the availability of more data [5]. Correlations with parameters obtained from more popular in-situ tests, such as the N-value from standard penetration tests and tip resistance, sleeve friction, and soil behaviour type index from cone penetration tests, have been proposed [3,6].…”

Section: Introductionmentioning

confidence: 99%

“…Correlations with parameters obtained from more popular in-situ tests, such as the N-value from standard penetration tests and tip resistance, sleeve friction, and soil behaviour type index from cone penetration tests, have been proposed [3,6]. Procedures to predict the liquefaction potential of sandy soils have also been formulated and validated with the data observed in Christchurch according to the Canterbury Earthquake Sequence [4,7,8]. Moreover, procedures to estimate other index properties of soils, such as fines contents, plasticity index, and shear strengths, have been recommended [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Large Displacement Finite Element Modelling of the Screw Driving Sounding Test in Sandy Soil Using the Coupled Eulerian-Lagrangian Method

Mirjafari¹,

Orense

Das

2022

Geotechnics

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The Screw Driving Sounding (SDS) is a recently developed in-situ testing method for soil/site characterisation. To better understand the mechanism of testing, it is essential to create a simulation model for the SDS test to assist in better understanding the response and in improving the testing process, not to mention the development of empirical correlations to estimate geotechnical parameters for use in design. Complex problems involving large deformations are usually difficult to solve with the classical finite element (FE) method because large deformations can lead to large mesh distortions and contact problems. In this paper, a computational model using the finite element method is developed to simulate the drilling process involved in SDS tests; the Coupled Eulerian-Lagrangian (CEL) approach is used to deal with large deformation problems. The SDS drilling process in a sandy deposit with defined stress states (i.e., relative density and effective confining pressure) is simulated, and the SDS-derived parameters are monitored. Based on the simulation results, a chart was established to correlate the measured SDS parameter with the internal friction angle for different vertical effective overburden stresses. The derived chart is validated with the results of laboratory tests performed on samples taken from several sites in Christchurch, NZ, adjacent to the locations of the SDS tests. The results show that the CEL FE framework can model complex physical processes encountered during the SDS drilling. Moreover, the developed chart can be used to estimate the friction angle of the sandy soil based on the SDS-measured torque at a given depth.

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Screw driving sounding: a new test for field characterisation

Orense

Mirjafari

Suemasa

2019

Geotechnical Research

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Various in situ testing techniques are commonly employed to obtain geotechnical parameters for use in analyses and design. Some of the more popular field tests include standard penetration tests (SPTs), cone penetration tests (CPTs) and Swedish weight sounding (SWS). SPT and CPT are commonly preferred for large-scale projects, but they are expensive when implemented for small-scale constructions. SWS is highly portable and economical but poor in classifying soils. The screw driving sounding (SDS) test, which has been recently developed in Japan, is an improved version of SWS and can measure more parameters, including the required torque, load, speed of penetration and rod friction, and thereby provides a robust way of characterising soil stratigraphy. It is cost efficient and uses a machine-driven and portable device, making it suitable for testing in confined areas. Moreover, with a testing depth of 10–15 m, it is ideal for characterising shallow deposits. In this paper, the SDS test is introduced and the results of its application to various New Zealand sites are discussed. Moreover, a number of correlations between SDS parameters and CPT/SPT data are presented. The results prove that SDS can be an effective alternative for soil characterisation, particularly in residential areas and roading projects.

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Determination of Shear Strength Parameters Using Screw Driving Sounding (SDS)

Cited by 4 publications

References 2 publications

Correlation between Engineering Properties of Bangkok Clay and Penetration Resistance of Screw Driving Sounding (SDS)

Correlation between Engineering Properties of Bangkok Clay and Penetration Resistance of Screw Driving Sounding (SDS)

Large Displacement Finite Element Modelling of the Screw Driving Sounding Test in Sandy Soil Using the Coupled Eulerian-Lagrangian Method

Screw driving sounding: a new test for field characterisation

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