ABSTRACT
The theoretical and experimental research in the field of pushing of cylindric indenters to the cohesive and non cohesive soils was carried out. Suggestion of the extruding equipment for construction of underground openings of a large diameters without mucking out was the main purpose of the research. The verifying of the mathematic model was performed on the special stand with maximum diameter of pushed indenter 300 mm with possibility of the soil compaction and creating of the geostatic pressure up to 1 MPa.
