STEEL PIPE JACKING METHOD AND DEVICE

摘要

PURPOSE:To accurately propel a plurality of steel pipes in the ground with no drift. CONSTITUTION:A plurality of cutting edge members 4 having edge bodies at the tip are connected together by a connecting member 6, and steel pipes 5 are connected to the rear side of the cutting edge members 4 respectively. All steel pipes 5 are concurrently extruded by a propulsion mechanism 10, and the cutting edge members 4 are concurrently pressed into the ground 1. Since the cutting edge members 4 are connected together, the steel pipes 5 are not drifted from each other, and a plurality of steel pipes 5 can be accurately propelled.