UNDERGROUND CONTINUOUS WALL WORK UTILIZING SOIL PILLAR-ROW WALL

摘要

PURPOSE:To construct an underground continuous wall to be utilized as an underground structure by a method in which PC plates are inserted between the core materials of a soil pillar-row wall, the ground on the one side of the PC plate is excavated, iron bars are set between the core materials in the excavated portion, and concrete is placed into the iron bars. CONSTITUTION:A large number of pits 3 are formed in a row in the ground 1 by means of an earth auger, during which cement milk is injected to form a soil pillar-row wall 4. Before the hardening of the wall 4, core materials 6 having guides 9 and piles 10 on their lower parts are penetrated at given intervals, and precast concrete slabs 14 are inserted along the guides 9 into the spaces between the core materials 6 above the piles 10. After the hardening of the wall 4, the portion 4a on the one side of the PC plates 14 and the ground 1 are excavated until the PC plates 14 are exposed. An iron bar assembly 19 is wedled to the flange 12 of the core materials 6, and then concrete 24 is placed to complete an underground continuous wall. The underground continuous wall can be utilized not only as a sheathing but also as an underground structure.