.... This is normally stated in blowcounts per depth at a given measured depth. Meeting the pile refusal criteria does not mean the pile has met the required foundation capacity as per platform design but it only indicates the pile cannot be driven further using the same hammer size. A larger hammer size maybe required...

... Abstract Pile running, the uncontrolled fall of a pile due to the collapse of a hard soil layer over softer soils, is a major constructability risk during pile driving operations. This is especially the case for the long and large diameter piles driven with heavy hammer. Unexpected pile running...

... offshore structures located in different soil types including the carbonate sand. During the engineering of one of the fixed platforms in offshore Egypt (Helal platform), adopting Stevens carbonate sand model in 102 m penetration pile, the driveability analysis revealed the need to a hammer with extreme...