CONTINUOUS UNDERGROUND STEEL WALL AND CONSTRUCTION METHOD THEREOF

PURPOSE:To shorten a construction period and to reduce a construction cost by making a continuous underground wall resist in-plane shearing force as well as out of plane force to make it possible to utilize it as a permanent underground outer wall and an earthquake proof wall or a bearing wall, contributing it to builing construction of a building having a large-scale underground structural part having great depth, and reducing greatly wall thickness. CONSTITUTION:A preceding unit steel material 1 inserted into a continous soil cement column strip wall 2 consisting of a plurality of soil piles 2a in the arrangement having some laps provided thereto and a succeeding unit steel material 1' inserted into an adjacent soil cement column strip wall 2' and provided thereto are such that their butt ends are connected to each other with a slide joint 3 at least up to the cutting depth. The preceding unit steel material 1 and the succeeding unit steel material 1' are melded at the cutting side part of the slide joint 3, or a stud 4 and a reinforcing bar 5 are arranged to the cutting side part of the slide joint 3, and concrete 6 is placed to connect.