An initiative to correlate the SPT and CPT data for an alluvial deposit of Dhaka city

• Published in: International journal of geo-engineering Vol. 13; no. 1; pp. 1 - 13
• Main Authors: Arifuzzaman, Anisuzzaman, Md
• Format: Journal Article
• Language: English
• Published: Singapore Springer Singapore 01-12-2022; Springer Nature B.V; SpringerOpen
• Subjects: Alluvial deposits; Alluvial soils; Behavior; Civil Engineering; Cone penetration tests; Correlation; CPT; Earth and Environmental Science; Earth Sciences; Engineering; Field tests; Foundations; Friction; Friction resistance; Geoengineering; Geotechnical Engineering & Applied Earth Sciences; Hydraulics; Laboratories; Original Research; Sleeve friction; Software; Soil investigations; Soil layers; Soil resistance; SPT; Tip resistance; Sleeve friction; Correlation; SPT; CPT; Tip resistance
• ISSN: 2092-9196; 2198-2783
• DOI: 10.1186/s40703-021-00170-3

The Standard Penetration Test (SPT) is the most common in-situ tests for soil investigations. On the other hand, the Cone Penetration Test (CPT) is considered one of the best investigation tools. Many CPT-SPT correlation relationships have been proposed worldwide to estimate soil parameter from the other's available data. However, unfortunately, no available SPT-CPT correlations are established for the alluvial soil of Dhaka city. This paper aims at presenting correlations among the SPT-N value, cone tip resistance (
q
c
), sleeve friction resistance (
f
s
), soil behavior index (
I
c
) and mean particle size (
D
50
) for an alluvial soil deposit of Dhaka city. It is found that for the relationship between equivalent SPT N
60
-value and SPT N
60
-value the coarser soil layers As
1
and As
2
show the coefficient of correlation (R
2
) is 0.7106 and 0.534 respectively, which indicate a reliable relationship. In addition, the correlation between cone tip resistance (
q
c
) and SPT N
60
-value shows very strong relationship which is very similar to proposed Meyerhof correlation. Furthermore, the relations between other mentioned parametres also shows a valid correlations similar to other authors.