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EGG Cone Penetration Testing Procedure <br /> (CPT) <br />' Gregg In Situ, Inc carries out all Cone Penetration Tests (CPT) using an <br /> integrated electronic cone system, Figure CPT. The soundings were conducted <br />' using a 20 ton capacity cone with a tip area of 15 cm2 and a friction sleeve area <br /> of 225 cm2 The cone is designed with an equal e.id area friction sleeve and a <br /> tip end area ratio of 0 85. <br />' The cone takes measurements of <br /> cone bearing (q.), sleeve friction (fg) Geophones <br />' and dynamic pore water pressure1'Vs&VP) C <br /> (uz) at 5-cm intervals during <br /> penetration to provide a nearly Push rod <br />' continuous hydrogeologic log CPT connector <br /> data reduction and interpretation is <br /> performed in real time facilitating on- <br /> site <br /> SOLI Seal <br />' site decision making The above 3 Ell signal cable for <br /> mentioned parameters are stored on <br />' disk for further analysis and <br /> Water Sea! <br /> reference All CPT soundings are <br /> Friction <br /> performed in accordance with SleeveFaction load cell <br /> revised (2002) ASTM standards (D <br /> 5778-95) XInclinometer <br /> The cone also contains a porous <br /> filter element located directly behind rload cell <br /> Tip <br /> the cone tip (uz), Figure CPT It <br /> consists of porous plastic and is <br /> 5 0mm thick The filter element is Water Seal <br /> used to obtain dynamic pore <br /> pressure as the cone is advanced as Sod seal <br /> well as Pore Pressure Dissipation Pore Pressure <br /> Tests (PPDT's) during appropriate Transducer (u2) <br /> pauses in penetration It should be Tip load cell <br /> Filter <br /> noted that pnor to penetration, the <br /> element is fully saturated with silicon Cone Tip (qc) <br /> oil under vacuum pressure to ensure <br /> accurate and fast dissipation Figure CPT <br />' When the soundings are complete, the test holes are grouted using a Gregg In <br /> Situ support ng The grouting procedure consists of pushing a hollow CPT rod <br />' with a "knock ouf plug to the termination depth of the test hole Grout is then <br /> pumped under pressure as the tremae pipe is pulled from the hole Disrupfion or <br /> further contamination to the site is therefore minimized <br /> 1 <br /> 1 <br />