Squaring off and reaming tool for deep elongated trench excavations

摘要: There is disclosed a tool for squaring off and reaming the walls of an elongated trench excavation which has been previously formed utilizing slurry method. The constituted by pair spaced parallel steel beams are connected maintained in their space relation plurality connecting lattice bars. lower edges bars have cutting smoothing thereon excavation. may be left last series serve as H-beam article appearing October, 1973 issue Roads Streets Magazine entitled "Slurry Wall, Special Equipment Solved `No Room` Excavation Problem".