By N. Simons, B. Menzies, M. Matthews
A brief direction in geotechnical website research is the 3rd quantity within the well known and authoritative 'Short direction' sequence. This e-book specializes in the basic ideas of geotechnical web site research - particularly the making plans of the research. This critical ebook is illustrated all through with 23 case reports, seven of that are designated examples of most sensible perform. a few points of soil mechanics are defined utilizing 'hand written' brief direction Notes.
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Extra info for A Short Course in Geotechnical Site Investigation
A thin strip of clay was BOREHOLE 1. 22 ~ 20 40 60 Organic 1-8 1-0 2-0 3-0 I thin silt Very soft tosoft grey silty CLAY .... 'c ~ kw wp Compression index Cc 1-0 0-5 Sensitivity 'V Fl X ~ -~] II Sllghl~ l - I-- G~~~Er /Q [ r \ V 1\ ..... ,'S: X V 0 ! ~, fo- h ~ 0 \ 1\ 1-0. < ~ ~~ ~ V J &. P v} " &\ 8 10 waterg~ 10-0 10 20 30 ~c EJ'l £8 % 12 7 4 7 3 7 5 v 8 10 vi 10 () 4 5 3 4 4 4 4 4 5 5 5 5 5 6 5 4 6 6 \~~ x, I ) .... ~ ,,- ,( Fu ~ Z Z ~ "»z I c I ! 0-04 c n o z n m "U } Late glacial deposit ~l) ~ m ;;0 Key ~ 0-31 ~ I » ,r-Cc p'o ~l X \ ",'" \~ 6 6 5 4 4 5 0-90 ) x 14 BEDROCK-13'O m o Salt content in the pore- Ground surface ·0·80 layers ~ 1-6 80 Q!.
Because of the clay's high plasticity, the soil should have been tolerant of these levels of strain, and high-quality samples should have been obtained. " •• 0 80 8. •• • BH 1 + SPT1 • BH6 10 12 14 16 18 20 . • 1 • : .. I, •• •• • ,. I.. . L-- ;... 5 . ¢11' .. c a.
Undrained triaxial compression tests with a confining pressure of 207 kPa were carried out on 38 mm diameter by 76 mm high specimens with various inclinations of the axis from blocks about 250 mm cube, which in turn were hand-cut from an open excavation. 2 (Simons, 1967). In an attempt to eliminate some of the scatter, the results have been corrected to a common water content of 28%, for the purpose of comparison. It can be seen that the greatest strength was obtained for samples with their axes horizontal, and least for samples with axes inclined at 45° to the vertical.
A Short Course in Geotechnical Site Investigation by N. Simons, B. Menzies, M. Matthews