Results 151 to 160 of about 1,872 (191)

Piezocone Penetration Testing in Soft Cohesive Soils

1985
The difficulty in obtaining samples for laboratory testing in very soft cohesive marine deposits necessitates the use of in-situ testing methods. Piezocone penetrometers that measure the tip resistance qc, sleeve friction fs, and the generated pore pressure u, are one of the most repeatible and reliable in-situ testing methods.
MT Tumay, YB Acar
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Probabilistic identification of contaminated soils using resistivity piezocone penetration tests

Acta Geotechnica, 2018
The identification of contaminated soils has gained increasing interest over the decades in the geoenvironmental issues. In this study, a probabilistic method based on the geostatistics and the reliability-based analysis is performed on the resistivity piezocone penetration testing data to evaluate the spatial distribution of the contaminants including
Haifeng Zou, Songyu Liu, Guojun Cai, Anand J. Puppala   +3 more
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The Resistivity Piezocone Penetration Test (RCPTU) for Quality Control of Geotechnical Ground Densification

Symposium on the Application of Geophysics to Engineering and Environmental Problems 1999, 1999
Soil densification by vibro-replacement is commonly prescribed to reduce the potential for large strains and instability associated with pore pressure generation in granular soil during earthquakes. Penetration tests such as the standard penetration test (SPT) and piezocone penetration test (CPTU) are used to assess the need for such ground treatment ...
Chris R. Daniel, John A. Howie, Richard G. Campanella, Heraldo L. Giachetil   +3 more
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Effective friction angle of clays and silts from piezocone penetration tests

Canadian Geotechnical Journal, 2018
An existing effective stress limit plasticity solution for piezocone penetration tests (CPTu) is calibrated to evaluate the effective stress friction angle ([Formula: see text]) for undrained conditions for a variety of fine-grained soils ranging from natural lean to plastic clays and clayey silts from marine, alluvial, lacustrine, deltaic, and ...
Ouyang, Zhongkun, Mayne, Paul W.
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A Penetration Processing Study of Piezocone Penetration Test in Cutoff Wall

2018
The penetration processing of piezocone penetration test (CPTU) is very important for the analysis of stress-strain of soil bentonite cutoff wall (SBCW) in landfill site. In this paper, CPTU is conducted in the soil bentonite cutoff wall, which is located in Jiangsu province, China.
Xuepeng Li, Guojun Cai, Songyu Liu, Yuchao Li   +3 more
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Assessment of Measurement Errors of Piezocone Penetration Test in Soft Clay

Geotechnical Testing Journal, 2016
Uncertainty evolved through in situ testing, such as measurement error, is a major concern in the characterization of soft clays that suffer from the low strength and high sensitivity of soil properties. In this research, 20 piezocone penetration tests (CPTUs) in a laboratory calibration chamber and 25 CPTUs performed in marine soft clay in Lianyungang,
H. Zou, G. Cai, T. V. Bheemasetti, S. Liu, A. J. Puppala   +4 more
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Prediction of embankment settlements over marine clay using piezocone penetration tests

Bulletin of Engineering Geology and the Environment, 2010
The paper discusses the use of piezocone penetration testing (CPTU) and evaluates four methods of interpretation for predicting the deformation constrained modulus (M) used to calculate the consolidation settlement of cohesive soil. CPTU tests were performed at eight embankment sites in the Lianyungang marine clay and high-quality samples for ...
Songyu Liu, Guojun Cai, Anand J. Puppala, Qizhu Tu   +3 more
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Research on Application of Seismic Piezocone Penetration Tests in Pile Foundation

Advanced Materials Research, 2011
According to the characteristics of installation about the penetrometer of seismic piezocone penetration tests (SCPTu) and the pile, a theoretical relationship between ultimate bearing capacity of single pile, time-effect of shaft bearing capacity of single pile, excess pore water pressure around the pile during pile driven and the data measured from ...
Quan Cao, Hong Chen, Fa Bo Chen
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Correlation of Consolidation Parameters of Cohesive Soils with Piezocone Penetration Test Data

Transportation Research Record: Journal of the Transportation Research Board, 2016
This paper presents an evaluation of the piezocone penetration test (PCPT) interpretation methods and the development of new correlation methods for reasonably estimating the consolidation parameters of cohesive soils, namely, the constrained modulus and overconsolidation ratio (OCR). Laboratory and in situ PCPT test data collected from seven sites in
Murad Y. Abu-Farsakh, Rohit Raj Pant, M. Nafiul Haque   +2 more
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Analysis of Consolidation Processing of Piezocone Penetration Test in Cutoff Wall

2018
The piezocone penetration test (CPTU) is now widely used as an efficient and economical in-situ geotechnical investigation technology. The CPTU not only can provide the data of conventional cone penetration test (CPT), but also give a continuous profile of pore pressure.
Xuepeng Li, Guojun Cai, Songyu Liu, Yuchao Li   +3 more
openaire   +1 more source