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01 ME G 6 Cone Penetration Testing Procedure <br /> O fi (CPT) <br /> Gregg In Situ, Inc. carries out all Cone Penetration Tests (CPT) using an <br /> integrated electronic cone system, Figura 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 end 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 (f9) Geo hones r� <br /> and dynamic pore water pressure <br /> (VA yp) =` <br /> (u2) at 5-cm intervals during � '� Push rod <br /> penetration to provide a nearly connector <br /> continuous hydrogeologic log. CPT ; <br /> data reduction and interpretation is Soil seal <br /> performed in real time facilitating on- <br /> site decision making. The above — Electric cable for <br /> mentioned parameters are stored on signal transmission <br /> disk for further analysis and I Water Seal <br /> reference. All CPT soundings are l <br /> performed in accordance with Friction load cell <br /> revised (2002) ASTM standards (D Frictin sleeve <br /> 5778-95). Inclinometer <br /> The cone also contains a porous <br /> l QX�} <br /> filter element located directly behind Tip load cell <br /> the cone tip (u2), Figure CPT. It f <br /> consists of porous plastic and is <br /> 5.Omm thick. The filter element is Water Seal <br /> used to obtain dynamic pore Soil seal <br /> pressure as the cone is advanced as <br /> well as Pore Pressure Dissipation _._ Pore Pressure <br /> Tests (PPDT's) during appropriate Transducer (q) <br /> Tip load cell <br /> pauses in penetration. It should be F=ilter <br /> noted that prior to penetration, the <br /> ...�_ Tip C <br /> element is fully saturated with silicon P (��) <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 rig. The grouting procedure consists of pushing a hollow CPT rod <br /> with a "knock our plug to the termination depth of the test hole. Grout is then <br /> pumped under pressure as the tremie pipe is pulled from the hole. Disruption or <br /> further contamination to the site is therefore minimized. <br />