CONSTRUCTION METHOD OF AN UNDERGROUND STRUCTURE USING A PARALLEL CONNECTED PROPELLING STEEL PIPE, FOR MINIMIZING THE NEIGHBORING GROUND RELAXATION, IMPROVING THE WATERPROOF PERFORMANCE AND REDUCING THE CONSTRUCTION PERIOD

摘要

PURPOSE: A construction method of an underground structure using a parallel connected propelling steel pipe is provided to reduce the construction period and cost, to improve the stability and water-stopping performance, and to reduce the material expenses by reducing the number of steel pipes.;CONSTITUTION: A construction method of an underground structure using a parallel connected propelling steel pipe is composed of the steps of: manufacturing a parallel connected propelling steel pipe by horizontally combining two or three circular steel pipes; removing inside soil after pressure-inserting the parallel connected propelling steel pipe under the ground; installing a reinforcing bar(100) in the parallel connected propelling steel pipe and a joint of a parallel connected steel pipe; filling, applying, and curing concrete in the parallel connected propelling steel pipe; installing a temporary column after excavating soil inside the constructed parallel connected steel pipe; installing a waterproof steel plate in the lower part of the parallel connected steel pipe; filling adhesive sealing material inside; and removing the temporary column after constructing a concrete underground structure in the upper, lower, and side parts.;COPYRIGHT KIPO 2010