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Project No. D-3885-06 <br />Christ Our Savior Catholic Parish <br />Utilities: <br />Any utilities under the slab should be supported by hangers under the slab and flexible <br />joints should be provided where such utilities cross the building footprint. These would <br />help reduce the likelihood of utility damage due to differential seftlement between non- <br />yielding pile zones and potentially settling liquefiable soil zones under the structural slab, <br />where such utilities may traverse. <br />Foundation Settlement: <br />Since the proposed structure will be supported on piles, static settlement is considered to <br />be insignificant. Also, subsurface conditions will improve due to piles and soil arching in <br />between piles in the event of liquefaction. <br />Pile Installation Observations: <br />Driving of piles should be performed under continuous inspection of the Geotechnical <br />engineer. Pile installation should be in accordance with ADSC Standards, this report, and <br />specific requirements set forth by the City of Santa Ana and their authorized field <br />representative (Deputy Inspector). Verification of pile lengths and capacities should be <br />performed by the Geotechnical Engineer in the field, based on penetration depth and <br />encountered soil conditions. All pile installations should be observed, recorded, and an <br />as-built report with accompanying records should be prepared and submitted by the <br />Geotechnical Engineer. <br />Shop Drawing Review <br />The Geotechnical Engineer should review and approve precast concrete piles for the <br />specified lengths and materials including the proper use of Type V cement and 0.45 <br />water-cement ratio for protection against corrosion attack. This would be in addition to <br />the regular shop drawing reviews by the Structural Engineer. <br />u <br />I <br />t <br />I <br />I <br />I <br />I <br />n <br />u <br />n <br />I <br />I <br />n <br />I <br />I <br />I <br />T <br />n <br />E26