The invention relates to a retaining work (12) in ground (S), the work having a vertical front portion and separating a first portion of ground (S1) from a second portion of ground. The front portion (14) is in the form of juxtaposed arched walls (16), each arched wall (16) presenting a concave side facing the first portion of ground and a convex side facing the second portion of ground, and the retaining work (12) further includes a rear portion (20) comprising a plurality of wall elements (22) having their largest faces extending vertically in the second portion of ground (S2), each wall element (22) being arranged between two adjacent arched walls (16) and extending transversely relative to the front portion (14).

The invention relates to a retaining work (12) in ground (S), the work having a vertical front portion and separating a first portion of ground (S1) from a second portion of ground.

The front portion (14) is in the form of juxtaposed arched walls (16), each arched wall (16) presenting a concave side facing the first portion of ground and a convex side facing the second portion of ground, and the retaining work (12) further includes a rear portion (20) comprising a plurality of wall elements (22) having their largest faces extending vertically in the second portion of ground (S2), each wall element (22) being arranged between two adjacent arched walls (16) and extending transversely relative to the front portion (14).

A method for manufacturing a one-piece element defining a lost formwork for forming drill guides, includes mixing a volume of hydraulic binder including a first volume of water and a second volume of a bonding element and a volume of an organic base; molding to obtain a one-piece element including at least one cylindrical portion with a radius of at least 40 cm; drying the mixture molded forming a one-piece element, and recessing a central portion of material of the one-piece element in a central zone of the cylinder portion to form a guide.

Catheter blood pumps that include an expandable pump portion. The pump portions include an collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

Catheter blood pumps that include an expandable pump portion. The pump portions include a collapsible blood conduit that defines a blood lumen. The collapsible blood conduits include a collapsible scaffold adapted to provide radial support to the blood conduit. The pump portion also includes one or more impellers.

A system for positioning and anchoring columns. The system includes a positioning template having a first frame configured to support horizontal panels, jacking mechanisms for leveling the horizontal panels, a first opening defined by the horizontally aligned panels configured to guide a sleeve when driven downward below grade level through the first opening, and a tubular sleeve for passing through the first opening and for receiving a second frame. The second frame includes frame members defining a second opening on each end of the second frame and a plurality of elongated bars spanning between the first end and the second end. The second frame is for guiding a pile when driven downward. A pile having a first end and an opposing second end is configured for receiving a connecting tube of a column. A column having a connecting tube is to inserted into the pile's first end.

The invention relates to a formwork device (10) for an end of a panel of a molded wall, said formwork device extending along a longitudinal direction (A) and comprising at least one first formwork element (20) including: a base (22) extending along the longitudinal direction (A) and having an outer face (24); a housing (28) interacting with the base and extending along the longitudinal direction; at least one measuring device (40) making it possible to determine at least one first deviation parameter (d1) representative of the deviation of the base (22) with respect to a first vertical plane (P1); and a signal-transmitting device (50) connected to the measuring device (40) to transmit the first deviation parameter (1, d1, ) to a reception station (60) located at the surface.