METHOD FOR CONSTRUCTING RETAINING WALL HAVING H-BEAM

摘要

A construction method for a pile unit provided with an H-beam is provided to increase the cost required and to reduce the use of unnecessary filler by drilling holes continuously and installing H-beam piles to the holes. The construction method for a pile unit provided with an H-beam comprises the steps of: executing primary casing work by forming a primary hole(50) on the ground to the appointed depth using a drilling machine such as an auger, etc. and inserting a primary pipe member to the primary hole; executing secondary casing work by inserting a secondary member(52) to the inside of the primary pipe member and pulling out the primary pipe member; executing third casing work by forming a secondary hole(60) adjacently to the primary hole and inserting a third pipe member to the secondary hole; executing fourth casing work by inserting a fourth pipe member to the inside of the third pipe member and pulling out the third pipe member; forming a slit of the fourth pipe member and a slit of the secondary pipe member to connect with each other and inserting an H-beam pile(10) over the primary hole and the secondary hole; placing filler such as soil cement or concrete to the secondary pipe member and the fourth pipe member to make the whole H-beam pile buried under the filler; and pulling out the secondary pipe member and the fourth pipe member before the filler is cured.