00000000nam 2200000zi 4500
0019.870742
003CaOODSP
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006m     o  d f      
007cr bn|||||||||
008190327s1996    onca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn-on
0861 |aEn13-5/96-71E-PDF
1001 |aHarris, Steven M., |eauthor.
24514|aThe determination of the orientations of fracture planes in a weathered clay till using core samples / |cSteven M. Harris, Neil R. Thomson, Department of Civil Engineering, University of Waterloo ; Kentner S. Novakowski, Canada Centre for Inland Waters.
264 1|a[Ottawa] : |bEnvironment Canada, Water Science and Technology Directorate = Environnement Canada, Direction générale des sciences et de la technologie, eau, |c1996.
300 |a1 online resource (13, 12 pages) : |billustrations.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNWRI contribution ; |v96-71
500 |a"Submitted to Ground Water, May 1996."
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references.
5203 |a"A method has been developed to determine fracture plane orientations in clay-rich glacial deposits from core samples obtained from inclined borings. In this method, a portion of each core sample is removed to expose vertical and horizontal surfaces which are used to map each identified fracture plane. An analytical geometry technique is used in conjunction with the mapping data to determine the pole to each fracture plane. This fracture pole data can then be presented on a lower hemisphere equal area projection diagram to indicate preferred fracture plane orientations. The utility of the developed method is demonstrated through a detailed analysis of core samples collected from a 10 m² site located near Sarnia, Ontario. The data from this investigation indicated the presence of three sets of fracture planes; however, only one of these fracture sets was determined to be statistically significant. The developed method offers an alternative to mapping fracture plane orientations on exposed surfaces"--Abstract.
65310|aDrift
65310|aFracture mechanics
69207|2gccst|aSediments
7001 |aThomson, Neil Robert, |d1957- |eauthor.
7001 |aNovakowski, Kent S., |eauthor.
7101 |aCanada. |bEnvironment Canada.
7101 |aCanada. |bWater Science and Technology Directorate.
7102 |aCanada Centre for Inland Waters.
7102 |aUniversity of Waterloo. |bDepartment of Civil Engineering.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|v96-71.|w(CaOODSP)9.844121
85640|qPDF|s2.74 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-96-71-eng.pdf