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From the dissipation p14ts,sirnply read the dissipatian.depth binddissipated pressure for the: <br /> values to plus,into the equation above. On the plots. pore pressure(psi)is on the abscissa and:log <br /> time(seconds)is on tile ordinate. <br /> Sampling Descripti(in <br /> Geoprobeg brand Dual-Tube Sampling System, itre efficient methods of-collecting.continuous <br /> soil cores with the added benef at:of a cased hole. Dual tube sat 1plin f;uses two sets of probe rods <br /> to collect continuous soil cores.One set of rods is driven into the ground as att outer casing(2.2 <br /> or 3.25 inches in:diametcr).These rods.rcceive:tlie driving force'fro;n the hammer and provide.a <br /> sealed hole from:which;soil samples inav be recovered without the threat of eros contamination, <br /> The second.smaller set of rods are placed inside the.outer casing.The smaller rods.hold a sample <br /> liner in place as the outer casing::is driven one sampling;interval.The small rods.are=then retracted <br /> to retrieve the filled liner. S.6il samples are collected in 1.85-inch diameter or 1.125-inch <br /> diameter clear.PVC sample shca:ths. <br /> { I nterpretatiom <br /> Soil behavior type{SB',Q, SP'J'No0 energy ratio,undrained shear strength;OCR,and unit <br /> weights are calculated and/or ate interpretations generated by the CPT-Pro software based on. <br /> empirical relationships.derived•iia the-f6ilowing references;. <br /> P.K. Robertson,R.G.Catrnpanclla,:1?.Gillesptc;,.and J.Greig,1986y Use ofPiezonieter Cone Data, <br /> Y Proceedin<s of the ASCE Stxemity�Cort:terrnee 1n Sttu '8t'>. Use of-1n Situ Tests it Ceoteclttt'ical <br /> Engineering;pp_ 1263-1280. <br /> P.K.Roberston,.1990,Soil,Classification Ustng..the Cone'fsenctration Test;Canadian GOtechnoal. <br />' JournaI,27(!),,p.0. <br /> { T.Lunne,PX.Robert_so i,and.JJ M-Powetl, 1-997;Cone Penetratio n in Geotechnical Practice, <br /> t Taylor acid Francis Publishing: <br /> I, <br /> CP`f ltic. tna.kcs tao reeotnmendatton oti whtchaotl beh;lvuar type analysts ismost=correct'-'. The <br /> engineershould be aware ofthe limitations of";;sing CI11data`to derive so&behavior type and <br /> other engineering parameters and is encouraged to review the-alcove referen es to better <br /> understand the applieabifity and'limitations'of`(P'I"data. 1t is-solnetnles notpossible to <br /> determine sol!type based solely on tip resistance,sleeve friction,and dynamic pore pressure <br /> response,and confirmatory sariiples maybe required; <br /> Please do not hesitate to contact CPT 1ne tf:youbave.questit ns: <br /> Sincerely, <br /> Johri Rogic <br /> 'President <br /> California Push'Fechnologies.-tne <br /> i <br /> cm,tile:mettxuls descripti6mdnc bins 25::?t1l}8 <br /> I <br /> f <br />