Panel cutting of "PANTALLAX" diaphragm wall panels

Demolition of excess concrete existing at the crown of "PANTALLAX" diaphragm wall panels, 26 cm thick, by mechanical chipping with breaker hammer of the section between the concrete pouring level and the cut-off level, until ensuring the absence of concrete contaminated by sludge and the quality described in the Project; in a work area with access greater than 3 m, headroom greater than 11 m and surface area greater than 500 m², and manual loading of debris onto truck or container.