WET-TYPE CONSTRUCTING METHOD OF PIER FOUNDATION

摘要

PURPOSE: A wet process system construction method of piers secures a space for construction of piers using a sheet pile and installing a cofferdam. A construction period and a cost are saved by omitting the sand shaft toward the space inside the cofferdam or the radical position of the sheet pile. CONSTITUTION: A wet process system construction method of piers comprises the steps of: forming a cofferdam which forms a closed space by mounting multiple piles(2) and a rock(11), and by mounting multiple sheet piles(1) which surrounds an area of mounted piles, pouring a underwater concrete on the bottom of the inner space of the cofferdam in the state of not draining a water which is trapped in the inner space of a cofferdam, constructing a pier foundation and a pier body in the inner space of the cofferdam, being drawn a sheet pile and demolish the cofferdam.