Consolidation Analysis by the Modified Slope Method

Al-Zoubi, Mohammed Shukri

doi:10.1520/gtj20130097

Cited by 4 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figures 2 and 3 show that the linear relationships between EOP pi  and ti  are practically the same for both the direct analytical method (DAM) and the extended Taylor The conventional Taylor procedure can be shown to be a graphical solution of the direct analytical method (DAM (Taylor, 1948) is theoretically correct when only three data points are used. However, the Taylor method inherently includes limitation due to the fitting of the experimental compression-time curve in which the actual time to EOP consolidation exhibits a definite value (i.e., p t ) to the Terzaghi theory in which the theoretical time to EOP consolidation is infinity (Al-Zoubi, 2014). This limitation of the standard Taylor method is overcome in this study by introducing the extended Taylor method (ETM) that uses forward extrapolation to obtain the global EOP p  .…”

Section: Comparison With the Direct Analytical Methods (Al-zoubi 2008a)mentioning

confidence: 99%

“…The extended Taylor method (ETM) is introduced in the following section to improve the estimation of p  and v c values and compared to existing methods by using experimental results of clayey soils (Table 1). These soils cover a wide range of liquid limit and plasticity; the testing procedures of these soils were described in detail by Al-Zoubi (2008b;2010;2013;2014) The Extended Taylor Method (ETM)…”

mentioning

confidence: 99%

See 1 more Smart Citation

Consolidation Analysis by the Extended Taylor Method ( ETM ).

Al-Zoubi

2015

jjce

Self Cite

View full text Add to dashboard Cite

The Taylor t method is extended for improving the estimation of the end-of-primary (EOP) settlement p  and coefficient of vertical consolidation v c. The extended Taylor method (ETM) utilizes the same graphical procedure of the conventional Taylor method, but this procedure is repeated twice at any two U values greater than 52.6% instead of the one used in the Taylor method at 90%; U is the average degree of consolidation. The ETM explicitly relates v c to the slope of the initial linear portion of the t -t curve as well as the EOP settlement p  ; t  is the settlement at time t during consolidation. The ETM can be applied with a minimum of four consolidation data points for estimating p  and v c. Two types of EOP settlements are distinguished; firstly, local EOP settlement pi  obtained by matching experimental results to theory at a particular U value; secondly, global EOP settlement p  obtained by extrapolation using two or more local EOP settlements. The ETM explains the observed differences in v c values estimated by the existing methods in terms of the differences in p  values obtained by these existing methods. Experimental results are used to validate and compare the extended Taylor method with the existing methods.

show abstract

Section: Comparison With the Direct Analytical Methods (Al-zoubi 2008a)mentioning

confidence: 99%

mentioning

confidence: 99%

Consolidation Analysis by the Extended Taylor Method ( ETM ).

Al-Zoubi

2015

jjce

Self Cite

View full text Add to dashboard Cite

show abstract

State-of-the-Art Review on Determining One-Dimensional Consolidation Parameters Based on Compression and Distribution of Pore Water Pressure: Coefficient of Consolidation (cv), End of Primary (EOP) Consolidation

Olek

2024

Arch Computat Methods Eng

View full text Add to dashboard Cite

Predicting the time rate of consolidation is one of the major aspects of structure design, founded on compressible fine-grained soil. The time to achieve the required advancement of the consolidation process is proportional to the coefficient of consolidation (cv). In practical applications, the settlement rate is directly related to the excess pore water pressure dissipation rate. A plethora of interpretation methods have been proposed for determining consolidation parameters from laboratory one-dimensional consolidation test in the past decades. This state-of-the-art review presents a comprehensive literature study of available approaches for establishing both coefficient of consolidation and end of primary (EOP) consolidation using compression and pore water pressure laboratory data. The classification of the methods has been made to set in order interpretation approaches for future selection and comparisons. The first part of the paper describes approaches based on graphical curve-fitting. This part includes five approaches: square root of time fitting approach, Semi-logarithmic fitting approach, Differential methods, Hyperbolic approach, and approach based on excess pore water pressure dissipation. In addition, a method comparison study has been performed to evaluate the degree of agreement between selected methods statistically. For this purpose, simple regression and Bland & Altman differences analysis have been used. The second part refers to the computational-based approach, covering a wide range of methods centred on full-matching treated by least-squares, correlational equations linking cv with index properties and soft computing approaches. A thorough insight into recently published literature on machine learning and physics-informed deep learning incorporated to derive the representative value of cv has also been compiled.

show abstract

Critical Reappraisal of Casagrande and Taylor Methods for Coefficient of Consolidation

Olek

2019

KSCE Journal of Civil Engineering

View full text Add to dashboard Cite

Consolidation Analysis by the Modified Slope Method

Cited by 4 publications

References 23 publications

Consolidation Analysis by the Extended Taylor Method ( ETM ).

Consolidation Analysis by the Extended Taylor Method ( ETM ).

State-of-the-Art Review on Determining One-Dimensional Consolidation Parameters Based on Compression and Distribution of Pore Water Pressure: Coefficient of Consolidation (cv), End of Primary (EOP) Consolidation

Critical Reappraisal of Casagrande and Taylor Methods for Coefficient of Consolidation

Contact Info

Product

Resources

About