Results 31 to 40 of about 646,790 (297)

Field tests on the effects of diameter of drill pipe on number N of SPT

open access: yesYantu gongcheng xuebao, 2017
Currently the application of 50 drill pipe is more in the standard penetration test (SPT) in the geotechnical engineering investigation, which is different from the code that 42 drill pipe is specified.
NIE Qing-ke 1,2, JIA Xiang-xin 1,2, QIN Lu-sheng 1,2, WANG Ying-hui 1,2, LIANG Shu-qi 1,2
doaj   +1 more source

Assessment of seismic liquefaction hazard in Shanghai based on ground motion intensity and Standard Penetration Test

open access: yesDizhi lixue xuebao, 2021
Shanghai is located in the alluvial plain of the Yangtze River Delta, the merge area of the Huangpu River and Suzhou River. The unique geographical and sedimentary environment have formed the shallow sand layers in Shanghai.
LI Xue, ZENG Yuyan, YU Fei, SHI Gang
doaj   +1 more source

Reinforcement learning for efficient network penetration testing [PDF]

open access: yes, 2019
Penetration testing (also known as pentesting or PT) is a common practice for actively assessing the defenses of a computer network by planning and executing all possible attacks to discover and exploit existing vulnerabilities.
Chen, T., Ghanem, M.
core   +3 more sources

Standard Penetration Test Performance in Sandy Deposits [PDF]

open access: yesJournal of the Korean Geotechnical Society, 2013
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

Analyzing gender inequality through large-scale Facebook advertising data [PDF]

open access: yes, 2018
Online social media are information resources that can have a transformative power in society. While the Web was envisioned as an equalizing force that allows everyone to access information, the digital divide prevents large amounts of people from being ...
Cebrian, Manuel   +6 more
core   +2 more sources

Using a genetic algorithm to develop a pile design method

open access: yesSoils and Foundations, 2022
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

Determination of soil properties from standard penetration test complemented by torque measurement (SPT-T)

open access: yesActa Scientiarum: Technology, 2014
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

Developing a Regionally Adaptable CPT-SPT Correlation Using Linear Regression and Genetic Algorithms

open access: yesApplied Sciences
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

Power Systems Data Fusion based on Belief Propagation

open access: yes, 2017
The increasing complexity of the power grid, due to higher penetration of distributed resources and the growing availability of interconnected, distributed metering devices re- quires novel tools for providing a unified and consistent view of the system.
Fusco, Francesco   +2 more
core   +1 more source

Underwater noise from geotechnical drilling and standard penetration testing [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2017
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

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