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@inproceedings{Mider:2018:10.1680/eiccf.64072.481,
author = {Mider, G and Lawrence, JA},
doi = {10.1680/eiccf.64072.481},
pages = {481--487},
title = {Anisotropic permeability of chalk},
url = {http://dx.doi.org/10.1680/eiccf.64072.481},
year = {2018}
}
TY - CPAPER
AB - The consolidation history of chalk denotes that it has been subjected to different horizontal and vertical stresses throughout its geological history. A testing programme was developed to investigate whether this would mean that chalk exhibits anisotropic permeability. Three Southern Province Chalk formations in south east England were tested; West Melbury Marly Chalk, Seaford Chalk and Newhaven Chalk formations. All the specimens were collected in the field, orientations were recorded before the samples were cut and prepared for laboratory testing. The laboratory testing programme identified small anisotropics in permeability measurements in Seaford and Newhaven Chalk formations, and anisotropy in unconfined compressive strength measurements. Anisotropic permeability in the West Melbury Marly Chalk Formation is unresolved due to heterogeneity of the samples collected from the formation. All tested samples also had index properties measured, and they have also been presented in the paper. It can be concluded that vertical samples in the Seaford and Newhaven Chalk formations are more permeable and weaker than horizontally drilled samples.
AU - Mider,G
AU - Lawrence,JA
DO - 10.1680/eiccf.64072.481
EP - 487
PY - 2018///
SP - 481
TI - Anisotropic permeability of chalk
UR - http://dx.doi.org/10.1680/eiccf.64072.481
ER -
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