DRIVING METHOD OF INNER EXCAVATION TYPE STEEL PIPE SHEET PILE AND THE STEEL PIPE SHEET PILE USED THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a driving method of an inner excavation type steel pipe sheet pile capable of carrying out the construction of a retaining wall by the steel pipe sheet pile by rationally one time excavating propulsion operation by omitting the construction of a displacement pile and the steel pipe sheet pile used therefor. SOLUTION: In the inner excavation type steel pipe sheet pile driving method for driving a steel pipe sheet pile by a pressurized propulsive device energizing press-in force by holding the circumferential surface of the steel pipe sheet pile 10, a hammer grab dropped inside of the steel pipe sheet pile for making excavation and a crane operating the hammer grab, the steel pipe sheet pile 10 to be placed is provided with an excavating edge 12 on a position corresponding to an attached place of joints 15 and 15', and is driven without causing a load occurring at the time of boring to act on the front end parts of the joints 15 and 15'. COPYRIGHT: (C)2006,JPO&NCIPI