Evaluation of bearing capacity of PHC pipe piles via the dynamic and static loading test

Due to its faster implementation and potential cost savings for estimating the bearing capacity of PHC pipe piles, High Strain Dynamic Test (HSDT) offers an alternative approach Static Load (SLT). The report presents a study via those methods with sliding micrometer. And Pile Driving Analyzer (PDA) imported from United States is employed, determine design parameters pile foundation engineering provide error sources capacity. Sliding micrometers cone-shaped rings are embedded in inner side piles every 1 m measuring strain. law stress strain at various depths during loading presented this paper. As new concept, “inflection point” proposed by relationship between shaft resistance relative displacement pile-soil. By comparing SLT HSDT, toe settlement demonstrated. This paper analyses reliability precision, explore source so as theoretical evidence trail-pile testing future. HSDT CAPWAP studies shows that could adequate results assessing piles.