CONSTRUCTION METHOD FOR CIVIL ENGINEERING FOUNDATION WORKS USING OUTCASING

摘要

The present invention relates to a construction method for civil engineering foundation works using an outcasing. The method includes the steps of: 1) verifying an insertion position for a pile and positioning an outcasing; 2) inserting the outcasing into a sand layer after verifying verticality through a survey; 3) drawing out the sand layer using a hammer grab; 4) driving the pile into the base ground after inserting the pile into the outcasing; and 5) drawing out the outcasing. According to the present invention, pile driving can be precisely performed at an exact position even in soft ground, thus enabling overall construction time to be shortened and construction accuracy to be increased.