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<br />11 <br /> <br />-L-i---" <br /> <br />" <br /> <br />LJ <br /> <br />n <br /> <br />It is our opinion that 14-inch diameter augercast piles installed to a minimum depth of 40 <br />feet below the existing ground surface will support a design compressive capacity of 60 <br />tons. It is also our opinion that 16-inch diameter augercast piles installed to a minimum <br />depth of 40 feet below the existing ground surface will support a design compressive <br />capacity of 75 tons. This analysis is based on the existing site elevation where the <br />borings were performed performed. If the site elevation changes at the time of <br />installation, the pile depth may also change accordingly. <br /> <br />n <br /> <br />LJ <br /> <br />LJ <br /> <br />n <br /> <br />LJ <br /> <br />AUGERCAST PILE CAPACITY TABLE <br /> <br />n <br /> <br />Pile Depth Below All. Compr. All. Tension Minimum <br />Diameter Exist. Ground Capacity Capacity Grout Strength <br />(Inches) (Pt) (Tons) (Tons) (psi) <br /> (0.25 f' c) <br />14 40 60 20 4,000 <br />16 40 75 25 4,000 <br /> <br />u <br /> <br />n <br /> <br />LJ <br /> <br />II <br /> <br />LJ <br /> <br />n <br /> <br />The actual depths should be expected to vary (possibly shallower or deeper) depending <br />on the drilling conditions encountered during installation of these piles. <br /> <br />LJ <br /> <br />L-J <br /> <br />The Florida Building Code (FBC) requires that any piles designed for greater than 36 <br />tons must be load tested in order to verify the pile capacity. At least one full-scale <br />compression load test will be required for this project as described in the Florida Building <br />Code. If uplift forces will also be part of the design, one tension load test will be required <br />for this project as described in the Florida Building Code. If two different pile sizes or <br />compressive capacities will be used for foundation design, two compression load tests <br />will need to be performed. <br /> <br />n <br /> <br />n <br /> <br />u <br /> <br />n <br /> <br />I' <br /> <br />_Based on the results of the test borings, a settlement analysis was performed using <br />standard geotechnical methods for pile settlement. It was determined that upon <br />completion of the proposed construction, total settlement of the structure should be of the <br />.order of one-half inch. Most of this settlement should occur upon the application of the <br />dead load during construction. <br /> <br />u <br /> <br />u <br /> <br />I' <br /> <br />LJ <br /> <br />We recommend that at a minimum, one full length #7 reinforcing steel bar utilizing <br />centralizers be installed in each pile to verify that a continuous pile of equal cross section <br />has been constructed. Additional reinforcing may be needed depending on the structural <br />engineer's requirements. <br /> <br />n <br /> <br />LJ <br /> <br />n <br /> <br />The remaining recommendations and general information provided in our report dated <br />June 16,2004 should be followed as previously specified. <br /> <br />LJ <br /> <br />n <br /> <br />u <br /> <br />Excavations of five feet or more in depth should be sloped or shored in accordance with <br />OSHA and State of Florida requirements. <br /> <br />n <br /> <br />LJ <br />~NUTTING <br />.~ ENGI~~~~~NC. <br /> <br />ESTA8USHEO 1867 <br />