Rib for supporting and reinforcing an excavation
AssigneeElas Geotecnica S.R.L.
InventorsCristiano Bonomi, Antonio Frullani
Life of this patent
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Abstract
The present invention relates to a rib (1) for supporting and reinforcing an excavation. The invention also relates to a structure and to a method for supporting and reinforcing an excavation. The rib (1) according to the invention comprises at least a structural element (5A) provided with a tubular body (6), preferably with a circular cross section, which defines an inner cavity (9A) adapted to be completely filled with concrete after installation of the rib. The structural element is provided with a filling device (7) operatively couplable to concrete injection means.
Claims14
A structure for supporting and reinforcing an excavation comprising a rib arrangement including a plurality of ribs, each rib being connected to an adjacent rib through one or more connection links, each rib including a structural element comprising a tubular body provided with an inner cavity adapted to be completely filled with concrete after installation of the rib, at least one of said structural elements comprising a filling arrangement operatively couplable to means for injecting concrete at a pressure greater than atmospheric pressure into the respective said inner cavity, the rib arrangement further including a vent arrangement for the outflow of air during injection of concrete into said inner cavity, each rib comprising a plurality of connection members arranged at predetermined intervals along the structural element thereof, each connection link being coupled to connection members arranged on different ribs at a corresponding height, and each connection member being configured so as to allow coupling of at least two connection links thereto.
A rib arrangement for supporting and reinforcing an excavation comprising, a plurality of ribs arranged in side-by-side relation with one another at the excavation, each said rib including a structural element comprising a tubular body provided with an inner cavity adapted to be completely filled with concrete after installation of the rib, said structural element of at least one of said ribs mounting thereon a connection member, said connection member including two mounting locations thereon, each mounting location being configured for coupling to a separate connection link, at least one of said structural elements comprising a filling arrangement operatively couplable to means for injecting concrete at a pressure greater than atmospheric pressure into said inner cavity, said rib arrangement further including a vent arrangement for the outflow of air during injection of concrete into said inner cavity.
A method for supporting and reinforcing an excavation comprising:
- providing a rib arrangement comprising first and second ribs, each of the first and second ribs including a structural element comprising a tubular body provided with an inner cavity adapted to be completely filled with concrete after installation of the rib, at least one of the structural elements comprising a filling arrangement operatively couplable to means for injecting concrete into the respective said inner cavity, and the rib arrangement including a vent arrangement for the outflow of air during injection of concrete into the inner cavity;
- installing the first and second ribs at the excavation in side-by-side relation to one another;
- providing a connection member on the structural element of at least one of the first and second ribs, the connection member being configured to allow coupling of two connection links thereto;
- coupling means for injecting concrete to the filling arrangement provided on the at least one structural element;
- injecting concrete at a pressure greater than atmospheric pressure into the filling arrangement and into the inner cavity of the tubular body of the at least one structural element with the concrete injecting means;
- filling the inner cavity of the tubular body of the at least one structural element with concrete with the concrete injecting means;
- and
- during said step of filling, venting air located within the inner cavity of the tubular body of the at least one structural element to the atmosphere through the vent arrangement.
Dependencies are inferred from the claim text.