Process and equipment for substituting a hydraulic binder for Fuller's earth (penetrable mud) in an excavation

摘要

The invention relates to a process and equipment for substituting a hydraulic binder 13 for Fuller's earth (penetrable mud) 14 in an excavation in which the hydraulic binder is injected into the excavation and the Fuller's earth (penetrable mud) is removed at the same time. A separation screen 2 is disposed in the excavation, designed to separate the volume of the excavation into two zones substantially separated one from the other. The hydraulic binder is injected from one side of the screen and the screen is moved in the excavation in synchronism with the injection of the binder. <IMAGE>