System for guiding the excavation tool used for the embodiment of a technical wall in the ground.

摘要

The invention relates to the civil engineering. / p & & p & it relates to a system for guiding the excavation tool 1, 2, 3 is used to carry out the trenches necessary to the embodiment of the panels of a cast wall in the ground, which comprises, in combination, a vertical guide member 5 extending over the height of the trench to be made integral with the adjacent panel or of a casing 8 disposed at the end of the adjacent panel, and the guide wheels 13, 14, 18, 19 mounted on the excavation tool, and rolling on the said device, characterized in that the guide wheels are positively retained by the guide member screw - to - screw of a horizontal force tending to separate them, and some of the wheels are profiled, 15, 16, so as to be able to destroy any obstacle in the hardened concrete present on the guide member. / p & & p & use by the companies for civil engineering.