H-PILE APPLIED WITH PRESTRESS AND CONSTRUCTION METHOD FOR SELF-SUPPORTING TYPE TEMPORARY RETAINING WALL BY USING SAME

摘要

The present invention provides an H-pile applied with prestress and a construction method for a self-supporting type temporary retaining wall by using the same. A bracket is installed in an H-pile of a retaining wall, and a steel rod or a steel wire is installed in the bracket. A prestress beam self-supporting construction method is applied to the H-pile applied with the prestress and supports earth pressure by applying tension to the steel rod or the steel wire. A wide work space is obtained as the installing number of spread beams is remarkably reduced. So, the H-pile applied with the prestress can reduce a usage amount of steel materials and construction periods due to increase of efficiency of a machine work. Therefore, the H-pile can reduce construction costs and can improve workability. To achieve the purpose of the present invention, the H-pile applied with the prestress comprises: an H-pile formed as an H-beam with a predetermined length; a bracket bolted to a predetermined position of the H-pile to face each other; and a tension member vertically fixed between the brackets. Also, the construction method for a self-supporting type temporary retaining wall by using an H-pile applied with the prestress, to achieve the purpose, comprises: a step (S1) of manufacturing the H-pile (P) applied with the prestress; a step (S2) of forming a boring hole (H) by boring the ground (G) at a predetermined depth and in a predetermined diameter at fixed intervals; a step (S3) of driving and embedding the H-pile (P) applied with the prestress into the boring hole (H); a step (S4) of filling the H-pile (100) bored and embedded with sand; a step (S5) of tensioning the tension member installed in the H-pile; and a step (S6) of installing an earth-retaining plate and excavating the front surface of the H-pile (100) at same time.;COPYRIGHT KIPO 2019