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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) program carried out <br /> at 749 East Charter Way, located in Stockton, CA The work was performed from <br /> November 6 - 7, 2000 The scope of work was performed as directed by California <br /> Geophysical personnel <br /> 2.0 FIELD EQUIPMENT & PROCEDURES <br /> The Cone Penetration Tests (CPT) were carried out by GREGG IN SITU, INC of Martinez, <br /> CA using an integrated electronic cone system The CPT soundings were performed in <br /> accordance with ASTM standards (D3441) A 20 ton capacity cone was used for all of the <br /> soundings This cone has a tip area of 15 sq cm and friction sleeve area of 225 sq cm <br /> The cone is designed with an equal end area friction sleeve and a tip end area ratio of <br /> 085 <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 /> 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 water <br /> pressure element was 5 0 mm thick and consisted of porous plastic Each of the elements <br /> were saturated in glycerin under vacuum pressure prior to penetration Pore pressure <br /> dissipations were recorded at 5 second intervals when appropriate during pauses in the <br /> 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 /> The cones were pushed using GREGG's truck-mounted CPT ng, having a down pressure <br /> capacity of approximately 25 tons Two (2) CPT soundings were performed The <br /> penetration tests were carried to depths of approximately 100 feet below ground surface <br /> for each test location Test locations and depths were determined in the field by John <br /> Cussen <br />