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.
Зміст
Introduction.- Review of Design Guidelines for Piles in Sand.- Installation Effects on The Capacity of Piles in Sand.- Experimental Facilities to Study the Behavior of Piles.- Instrumented Double-Wall Pipe Pile.- Electro-Pneumatic Pile Hammer for Laboratory Applications.- Geotechnical Properties of the Test Sand.- Similitude Between Model and Full–Scale Piles.- Load Tests on The Double–Wall Pipe Pile in Sand.- Summary, Conclusions, and Recommendations.
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