APPARATUS FOR PRESSING FORE-END IN STEEL PIPE'S LOOP STRUCTURE

摘要

PURPOSE: A front end insertion device of a steel pipe loop structure is provided to fix the direction of the steel pipe in inserting the steel pipe without sinking the ground. CONSTITUTION: A front end insertion device of a steel pipe loop structure comprises a front end insertion pipe and an actuator. The front end insertion pipe has the same external diameter and the same shape as a steel pipe(1). The front end insertion pipe is arranged on the front end of the steel pipe in the straight line to prevent the outer circumference from being stepped. The front end insertion pipe is made of an excavating part and a guide part(12). The actuator excavates the ground.