Liquefaction Screening—Non-plastic Silty Sands and Sands: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Liquefaction Screening—Non-plastic Silty Sands and Sands

Thevanayagam, S. / Sivaratnarajah, U. / Veluchamy, V. / Huang, Q.

Abstract Liquefaction screening of sands and silty sands using cone penetration resistance is a difficult problem. The presence of silt particles among the sand grains in non-plastic silty soils alter the intergrain contact density and affect cyclic resistance, flow and consolidation characteristics, and cone resistance of the soil. Intergranular void ratio concept is briefly summarized. Based on this concept, the effects of silt content on intergrain contact density and the relationship between intergrain contact density and cyclic resistance ratio (CRR) is highlighted using experimental data. Effect of silt content on permeability k and coefficient of consolidation cv is also presented. Model cone tests are used to quantify and highlight the influence of intergrain contact density and coefficient of consolidation on normalized cone resistance qc1N. A possible rational interrelationship between qc1N, CRR, and T where T = vd/cv, v = cone penetration velocity, and d = cone diameter is presented and compared with current liquefaction screening charts based on CRR-qc1N-FC, where FC is the percent silt content. With further research, a rational CRR-qc1N-T based liquefaction screening method appears likely.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Liquefaction Screening—Non-plastic Silty Sands and Sands

Thevanayagam, S. / Sivaratnarajah, U. / Veluchamy, V. / Huang, Q.

Abstract Liquefaction screening of sands and silty sands using cone penetration resistance is a difficult problem. The presence of silt particles among the sand grains in non-plastic silty soils alter the intergrain contact density and affect cyclic resistance, flow and consolidation characteristics, and cone resistance of the soil. Intergranular void ratio concept is briefly summarized. Based on this concept, the effects of silt content on intergrain contact density and the relationship between intergrain contact density and cyclic resistance ratio (CRR) is highlighted using experimental data. Effect of silt content on permeability k and coefficient of consolidation cv is also presented. Model cone tests are used to quantify and highlight the influence of intergrain contact density and coefficient of consolidation on normalized cone resistance qc1N. A possible rational interrelationship between qc1N, CRR, and T where T = vd/cv, v = cone penetration velocity, and d = cone diameter is presented and compared with current liquefaction screening charts based on CRR-qc1N-FC, where FC is the percent silt content. With further research, a rational CRR-qc1N-T based liquefaction screening method appears likely.

Liquefaction Screening—Non-plastic Silty Sands and Sands

Thevanayagam, S. / Sivaratnarajah, U. / Veluchamy, V. / Huang, Q.

Abstract Liquefaction screening of sands and silty sands using cone penetration resistance is a difficult problem. The presence of silt particles among the sand grains in non-plastic silty soils alter the intergrain contact density and affect cyclic resistance, flow and consolidation characteristics, and cone resistance of the soil. Intergranular void ratio concept is briefly summarized. Based on this concept, the effects of silt content on intergrain contact density and the relationship between intergrain contact density and cyclic resistance ratio (CRR) is highlighted using experimental data. Effect of silt content on permeability k and coefficient of consolidation cv is also presented. Model cone tests are used to quantify and highlight the influence of intergrain contact density and coefficient of consolidation on normalized cone resistance qc1N. A possible rational interrelationship between qc1N, CRR, and T where T = vd/cv, v = cone penetration velocity, and d = cone diameter is presented and compared with current liquefaction screening charts based on CRR-qc1N-FC, where FC is the percent silt content. With further research, a rational CRR-qc1N-T based liquefaction screening method appears likely.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Liquefaction Screening—Non-plastic Silty Sands and Sands

Contributors:

Thevanayagam, S. (author) / Sivaratnarajah, U. (author) / Veluchamy, V. (author) / Huang, Q. (author)

Published in:

Geotechnical Design and Practice ; 15-32

Developments in Geotechnical Engineering

Publication date:

2018-06-28

Size:

18 pages

ISBN:

978-981-13-0505-4 , 978-981-13-0504-7

ISSN:

2364-5156 , 2364-5164

DOI:

https://doi.org/10.1007/978-981-13-0505-4_2

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Building Construction and Design

Similar titles

Static Liquefaction of Sands and Silty Sands

Vaid, Y. P. / Kuerbis, R. H. / Chern, J. C. | British Library Conference Proceedings | 1990

Liquefaction Testing of Stratified Silty Sands

Amini, F. / Qi, G. Z. | British Library Online Contents | 2000

Liquefaction of silts and silty sands

Singh, S. / Sociedad Mexicana de Ingenieria Sismica | British Library Conference Proceedings | 1996

Liquefaction of Silts and Silty Sands

Singh, S. | British Library Conference Proceedings | 1997

Liquefaction of Artificially Filled Silty Sands

Yasuda, S. / Wakamatsu, K. / Nagase, H. et al. | British Library Conference Proceedings | 1994