The drag box was developed for shoring work in open, preferably undeveloped terrain. The free space in the box and the attached drag plate is used for pipe laying. After completion of the laying operation, the box is pulled forward by excavators with the drag plate in the trench for the next work cycle. Due to the static requirements and in order to stabilize the system, the Dragbox is equipped with an extremely strong horizontal connecting bolt that keeps the two shoring panels at a distance. It can be widened - if necessary - with special intermediate tubes. Elongated cutting shoes attached to the front edges of the shoring panels simplify the dragging process.
The modified design of the drag plate as a triangular shape has further increased the efficiency of the drawing box: Parallel to the laying of the pipe, compaction against the foundation soil can already be started on the free surface of the beveled drag plate.
