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PRESENTATION OF CONE PENETRATION TEST DATA <br /> 1.0 INTRODUCTION <br /> This report presents the results of a Cone Penetration Testing (CPT) and in situ soil & <br /> groundwater sampling program carried out at the Shell Oil facility located in Stockton, CA <br /> The work was performed on December 28 and 29, 1994 The scope of work was <br /> performed as directed by Mr Craig Robertson of Fugro - West, Inc <br /> 2.0 FIELD EQUIPMENT & PROCEDURES <br /> The Cone Penetration Tests CP were carried out b GREGG IN SITU, INC of Signal <br /> (CPT) Y g <br /> Hill, CA using an integrated electronic cone system The CPT soundings were performed <br /> in accordance with ASTM standards (D3441) A 10 ton resistivity type/capacity cone was <br /> used for all of the soundings This cone has a tip area of 10 sq cm and friction sleeve <br /> . area of 150 sq cm The cone is designed with an equal end area friction sleeve and a tip <br /> end area ratio of 0 85 <br /> The cones used during the program recorded the following parameters at 5 cm depth <br /> intervals <br /> - Tip Resistance (Qc) <br /> - Sleeve Friction (Fs) <br /> - Dynamic Pore Pressure (Ut) <br /> - Bulk Soil Resistivity <br /> The above parameters were printed simultaneously on a printer and stored on a computer <br /> diskette for future analysis and reference <br /> The pore water pressure element was located directly behind the cone tip The pore <br /> water pressure element was 5 0 mm thick and consisted of porous plastic Each of the <br /> elements were saturated in glycerin under vacuum pressure prior to penetration Pore <br /> pressure dissipations were recorded at 5 second intervals when appropriate during <br /> pauses in the penetration <br /> A complete set of baseline readings was taken prior to each sounding to determine <br /> temperature shifts and any zero load offsets Monitoring base line readings ensures that <br /> the cone electronics are operating properly <br />