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would not be impacted with the high groundwater levels and they would readily provide ample lateral capacity needed for seismic design. Pile driving impact is considered to be a manageable risk and is probably the most cost effective solution. Pertinent recommendations for design and construction of the proposed alternative i.e driven pile foundation system are presented in the following sections: Pile Recom mendations: New proposed Sanctuary building may be supported by either l4-inch or 16-inch square pre-cast pre-stressed concrete piles with grade bearns. Axial capacities of the driven piles were calculated using the State of the Art and the latest computer program APILE version 2015 .7 .8 (A program for the analysis of the axial capacity ofdriven pile), developed by Ensoft, Inc. The allowable axial capacity curves in compression and in tension as a function of pile tip depths below the ground surface are presented on Figures E-l and E-3 in Appendix E for static and live load conditions. These capacity curves include safery factors of 2.0 for compression and 2.0 for tension. The allowable axial capacity in compression can be increased by 33% for dead load, live load and transient loads such as seismic or wind loads. The allowable uplift and lateral capacities, however, are not recommended to be increased. Figure E-2 and E-4 presented on Appendix E are the axial load versus settlement curves for compression and tension respectively. It should be noted that the pile capacities shown are based on soil strengths alone. The actual capacities may be limited to lesser values by the strength of pile materials and connectlons 22 ProJect No. D-3885-06 Christ Our Savior Catholic Parish Pile Axial Capacify I I I I u n T t I T I I I I I I n I I