NDLI: Dependency of unit shaft resistance on in-situ stress: Observations derived from collected field data

Please wait, while we are loading the content...

Comparison between measured and predicted values of axial end bearing and skin capacity of piles bored in cohesionless soils in the Arabian Gulf Region

Natural deterioration and conservation treatment of the granite standing Buddha of Daejosa Temple, Republic of Korea

Book Review: Bifurcation and Localisation Theory in Geomechanics : Geotechnical and Geological Engineering , Volume 21 , Issue 1

Instructions for Authors

Geotechnical and Geological Engineering : Volume 20

Geotechnical and Geological Engineering : Volume 19

Geotechnical and Geological Engineering : Volume 18

Geotechnical and Geological Engineering : Volume 17

Geotechnical and Geological Engineering : Volume 16

Geotechnical and Geological Engineering : Volume 15

Dependency of unit shaft resistance on in-situ stress: Observations derived from collected field data

Content Provider	Springer Nature Link
Author	Shlash Alawneh, Ahmed Nusier, Osama K. Al Kateeb, Mustafa
Copyright Year	2003
Abstract	In this study, a database comprised of 30 pullout pile load tests was collected from geotechnical literature and analyzed to investigate the dependency of unit shaft resistance on effective vertical stress. The collected database consists of steel pipe, timber, and concrete piles, with varying normalized penetration depth with respect to pile diameter, driven into loose to very dense sand. Different correlations for the uplift lateral earth pressure coefficient K, Bjerrum-Burland ratio β, and the average unit shaft resistance f ave were derived using different assumptions. A comparison between measured and predicted capacities of the collected piles using the developed correlations indicated that the assumption of values of K and β that were constant with depth did not provide a reasonable fit for the measured capacities of the collected piles and thus this assumption is inappropriate. The best correlations for K and β that yield a reasonable fit to the measured capacities of the collected piles were found to be functions of sand relative density, pile diameter, and level of effective vertical stress. This indicates that average unit shaft resistance does not reach a limiting value, but rather continues to increase with depth. Moreover, the correlations for K and β in terms of effective stress revealed that average unit shaft resistance increases as pile diameter decreases and this increase depends on initial sand relative density. Comparisons of measured and predicted pullout capacities of the collected piles using the best-obtained correlations for K and β were made and compared to predictionsobtained from other methods. On the basis of these comparisons, it is concluded that the correlations for K and β in terms of effective stress give results comparable to those obtained from other methods, without stipulating limiting values for the average unit shaft resistance.
Starting Page	29
Ending Page	46
Page Count	18
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	21
Issue Number	1
e-ISSN	15731529
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydrogeology Geotechnical Engineering Civil Engineering Terrestrial Pollution Waste Management/Waste Technology
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Computing the 3D in-situ stress field from shut-in pressure data using statistical regression

Analysis ofin-situ stress measurements

TECHNICAL NOTE: Analysis of in-situ stress measurements

An approach to large-scale field stress determination

In-situ rock stress measurement from rock cores using the acoustic emission method and deformation rate analysis

CONFERENCE REPORT

Volume contents

Volume contents

In situ bioremediation of 1,2-dichloroethane under anaerobic conditions

Dependency of unit shaft resistance on in-situ stress: Observations derived from collected field data

Similar Documents

Computing the 3D in-situ stress field from shut-in pressure data using statistical regression

Analysis ofin-situ stress measurements

TECHNICAL NOTE: Analysis of in-situ stress measurements

An approach to large-scale field stress determination

In-situ rock stress measurement from rock cores using the acoustic emission method and deformation rate analysis

CONFERENCE REPORT

Volume contents

Volume contents

In situ bioremediation of 1,2-dichloroethane under anaerobic conditions

Dependency of unit shaft resistance on in-situ stress: Observations derived from collected field data