Results 21 to 30 of about 198,067 (259)
Using a genetic algorithm to develop a pile design method
A genetic algorithm (GA) was used in this study to develop a standard penetration test (SPT)-based design method for the axial capacity of driven piles.
Markus Jesswein, Jinyuan Liu
doaj +1 more source
Evaluation of liquefaction potential using cone penetration test (CPT) and standard penetration test (SPT) [PDF]
Abstract To evaluate soil resistance against liquefaction, a simplified procedure has been developed based on directly field soil testing. There are four recommended field tests, including CPT and SPT. Soil resistance to liquefaction is measured by the safety factor SF, which is the ratio between the capacity of the soil to resist ...
R S Suryanegara Dwipa +3 more
openaire +1 more source
Standard Penetration Test Performance in Sandy Deposits [PDF]
This paper presents an equation to depict the penetration behavior during the standard penetration test (SPT) in sandy deposits. An energy balance approach is considered and the driving mechanism of the SPT sampler is conceptually modeled as that of a miniature open-ended steel pipe pile into sands.
N.T. Dung, Sung-Gyo Chung
openaire +1 more source
The major problem on geotechnical work is to ensure that no settlements occur during the life cycle of the construction. This involves proper design of foundations and their bearing capacity. The Brazilian standard for design and execution of foundations,
Anna S. P. Peixoto, David de Carvalho
doaj +1 more source
The city of Portoviejo in coastal Ecuador was severely affected during the 16 April 2016, Pedernales earthquake (Mw 7.8). Various coseismic liquefaction phenomena occurred, inducing lateral spreading, sand boils, ground subsidence, and sinkholes in soils
Eduardo Ortiz-Hernández +3 more
doaj +1 more source
Developing a Regionally Adaptable CPT-SPT Correlation Using Linear Regression and Genetic Algorithms
Establishing a correlation between the Cone Penetration Test (CPT) and the Standard Penetration Test (SPT) is of significant importance for geotechnical engineering practice. A novel correlation between CPT-qt and SPT-N60 based on a genetic algorithm (GA)
Shuai Fang +3 more
doaj +1 more source
Underwater noise from geotechnical drilling and standard penetration testing [PDF]
Geotechnical site investigations prior to marine construction typically involve shallow, small-core drilling and standard penetration testing (SPT), during which a small tube is hammered into the ground at the bottom of the borehole. Drilling (120 kW, 83 mm diameter drillbit, 1500 rpm, 16–17 m drill depth in sand and mudstone) and SPT (50 mm diameter ...
Erbe, Christine, McPherson, C.
openaire +3 more sources
P-Y Curves for Single Piles in Sand from the Standard Penetration Test (SPT)
It is nowadays recognized the P-Y curves-based methods are the most commonly used methods for the analysis and design of pile foundations under lateral loads.
Abdesselem LAOUEDJ, Ali BOUAFIA
doaj
Proposals of SPT-CPT and DPL-CPT correlations for sandy soils in Brazil
Field tests in geotechnical engineering are fundamental for identification of the underground conditions. The standard penetration test (SPT) is the most commonly used geotechnical approach.
Mirella Dalvi dos Santos +1 more
doaj +1 more source
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia +7 more
wiley +1 more source

