READ ME File For 'Laboratory Investigation of Shaft Friction in Displacement Piles Installed in Chalk'

Dataset DOI: 10.5258/SOTON/D1208

ReadMe Author: Fernando Jesús Álvarez Borges, University of Southampton ORCID: 0000-0002-6940-9918

This dataset supports the thesis entitled The Shaft Capacity of Small Displacement Piles in Chalk
AWARDED BY: Univeristy of Southampton
DATE OF AWARD: 2020

DESCRIPTION OF THE DATA
Data is presented in Microsoft Excel spreadsheets. 
Data has been processed from the raw experimental data.
Each tab contains data for one experiment. Tab name codes are (generally) for internal use only. 
'Additional data' tabs contain additional data used for analysis and/or plotting. Correlation with Thesis test numbering is presented in these tabs.
Plot charts contain graphs similar or identical to those presented in the Thesis.

Particle size distribution (PSD) data:
Percentage vs passing size for different samples
Averaged from 5 laser-diffraction (Mastersizer3000) measurements for each sample.

High-pressure oedometer data: 
Void ratio measurements vs vertical stress. 
Derived from settlement measurements during 24h loading periods as specified in BS-1377-5:1990.

Triaxial data:
Triaxial_data01.xlsx - Strain, mean effective stress and deviator stress measurements and plots.
Triaxial_data02.xlsx - Void ratio vs mean effective stress data and plots, including digitised independent data.
Data was computer-collected during experiments via displacement and load sensors as described in the Thesis.

Direct simple shear (DSS) data:
DSS_data01.xlsx - Strain, vertical effective stress and shear stress measurements and plots.
DSS_data02.xlsx - Void ratio vs mean effective stress data and plots.
Data was computer-collected during experiments via displacement and load sensors as described in the Thesis.

Cyclic simple shear (CSS) data:
Strain, vertical effective stress and shear stress measurements and plots; Initial states in void ratio - mean effective stresss space.
Data was computer-collected during experiments via displacement and load sensors as described in the Thesis.

Model pile installation data:
Pile head stress vs pile head displacement measurements and plots; circumferential strain (on specimen confinement pipe) vs pile head displacement and plots.
Data was computer-collected during experiments via strain and load sensors, as described in the Thesis.

Computed tomography (CT) analysis data:
Grey value measurement and bulk density analysis obtained as described in the Thesis. 


Date of data collection: October 2015 to May 2019

Information about geographic location of data collection: N/A

Licence:
CC BY-NC 4.0
You are free to copy and redistribute the material in any medium or format, 
and to adapt, remix, transform and build upon the material, as long as the following terms are followed:
You must give appropriate credit, provide a link to the license, and indicate if changes were made. 
You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
You may not use the material for commercial purposes.
You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Related projects/Funders:
Consejo Nacional de Ciencia y Tecnología (Mexico)
Secretaría de Educación Pública (Mexico)
University of Southampton (UK)

Related publication:
Alvarez-Borges, F.J., Madhusudhan, B.N. and Richards, D.J. 2018. The 1D normal compression line and structure permitted space of low-medium density chalk. Géotechnique Letters, 8(4): 298-304. doi: 10.1680/jgele.18.00091
Alvarez-Borges, F.J., Madhusudhan, B.N. and Richards, D.J. 2018. Stiffness of Destructured Weak Rock. Micro to MACRO Mathematical Modelling in Soil Mechanics. Springer Nature, pp. 1-9. doi: 10.1007/978-3-319-99474-1_1
Alvarez-Borges, F.J., Clayton, C.R.I., Richards, D.J. and Madhusudhan, B.N. 2018. The effect of the remoulded void ratio on unit shaft friction in small-displacement piles in chalk. Engineering in Chalk, Proceedings of the Chalk 2018 Conference. ICE Publishing, pp. 475-480. doi: 10.1680/eiccf.64072.475 
Alvarez-Borges, F.J., Richards, D.J., Clayton, C.R.I. and Ahmed, S.I. 2018. Application of X-ray computed tomography to investigate pile penetration mechanisms in chalk. Engineering in Chalk, Proceedings of the Chalk 2018 Conference. ICE Publishing, pp. 565-570. doi: 10.1680/eiccf.64072.565



Date that the file was created: January, 2020

--------------