77_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011

77_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011 -...

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X18 Choice of Exploration Test Method(s) o Use the test that best approximates the information desired. Static tests generally provide better information about static performance (bearing, settlement, etc.). Dynamic tests provide information for machine foundations, pile driving, and liquefaction (earthquake) behavior. o Insitu tests provide the best information about the in-place soil mass and test the largest volume of soil. Penetration disturbance must be considered. Property correlations sometimes need validation. Insitu tests generally provide the best "bang for the buck" and the most information about site variability. o Lab tests on samples provide definitive soil properties. Sample quality, disturbance, and stress removal
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Unformatted text preview: affect results. Quality data requires good sampling, good handling, and lab time -all of which are expensive o The site often dictates the test type (soft soils and loose sands are hard too sample). Dense sands and stiff clays are hard to penetrate. o It is unwise to rely entirely on a single type of test. It is unwise to depend on untested correlations. Generally perform more than one insitu test and validate correlations with lab data and other tests for important design parameters. o Back up design parameters with field tests and construction monitoring as appropriate. ,,1>("-(j' \ " ~Ullf YDU l({ ,'I) "11 1 _) tl)&, f...
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This note was uploaded on 02/10/2012 for the course CEG 4012 taught by Professor Staff during the Fall '08 term at University of Florida.

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