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And review of Part I of the Symposium on Pile Foundations / Martin S. Kapp -- Types of piles : their characteristics and general use / Bernard A. Grand -- Pile driving : hammers and driving methods / George J. Gendron -- Pile-driving formulas / Ernest T. Mosley, Tonis Raamot -- Pile-driving analysis by one-dimensional theory : state of the art / T.J. Hirsch (and others) -- Summary and review of Part II of the Symposium on Pile Foundations / G.A. Leonards -- Structural behavior of driven piling / Donald L. York -- Pile load tests including quick-load test method, conventional methods, and interpretations / Frank M. Fuller and Horace E. Hoy -- Bearing capacity of foundation piles : state of the art / Harrry M. Coyle, Ibrahim H, . Sulaiman -- Lateral load capacity of piles / M.T. Davisson -- Current construction practices in the installation of high-capacity piling / Ben C. Gerwick, Jr. -- Pile load test by impact driving / G.G. Noble, Frank Rausche.
In order to gain a better understanding of the behavior of piles in sand, an extensive search of the literature has been performed to collect data on instrumental piles driven in sand and tested under vertical loads. The load transfer characteristics of the piles were then analyzed without considering residual stresses. Wherever the data allowed it, the load transfer analysis was repeated after considering residual driving stresses. The results of this method as well as conventional and new in situ tests methods were then compared to actual load test results. Areas of critical need for further research are pointed out and recommendations are made for their implementation.
One of the major difficulties in predicting the capacity of pipe piles in sand has resulted from a lack of understanding of the physical processes that control the behavior of piles during installation and loading. This monograph presents a detailed blue print for developing experimental facilities necessary to identify these processes. These facilities include a unique instrumented double-walled pipe-pile that is used to delineate the frictional stresses acting against the external and internal surfaces of the pile. The pile is fitted with miniature pore-pressure transducers to monitor the generation of pore water pressure during installation and loading. A fast automatic laboratory pile hammer capable of representing the phenomena that occur during pile driving was also developed and used.