Gabion type protection structure

A mattress type structure constructed with a metal mesh intended for civil protection works, the mattress type structure comprising:

• a base sheet of mesh;
• a covering sheet of mesh;
• and
• a plurality of bracing ties, each bracing tie comprising at least one support member and a main structure having a lower portion and an upper portion, the lower portion of each bracing tie being connected to the base sheet of mesh and the upper portion of each bracing tie being connected the covering sheet of mesh, the lower portion and the upper portion being connected to each other by one or more bracing tie branches, the bracing tie branches being located in a main plane of the main structure, the at least one support member being connected to the main structure and extending out of the main plane so as to produce a generally three-dimensional bracing tie structure capable of remaining standing alone, wherein the at least one support member is connected to the main structure by hooking and/or interlocking.

A method for positioning a mattress type structure for constructing civil protection works, comprising the steps of:

• providing a plurality of bracing ties in a flattened configuration, each bracing tie including at least one support member and a main structure having a lower portion and an upper portion, the lower portion and the upper portion being connected to each other by one or more bracing tie branches located in a main plane of the main structure, the at least one support member being connected to the main structure by hooking and/or interlocking and the at least one support member in the flattened configuration being folded and flattened in the main plane of the main structure;
• positioning a base sheet of mesh of a mattress type structure on a ground surface to be protected;
• for each bracing tie, extending the at least one support member out of the main plane so as to obtain a bracing tie structure which is generally three-dimensional and capable of remaining standing alone and so as to rise substantially perpendicularly to the base sheet of mesh;
• filling the mattress type structure with a filling material;
• and
• covering the mattress type structure with a covering sheet of mesh by securing the covering sheet to each bracing tie structure.

A method for positioning a mattress type structure for constructing civil protection works, comprising the steps of:

• providing a plurality of main structures each having a lower portion for connection to a base sheet of mesh of a mattress type structure, and an upper portion for connection to a covering sheet of mesh of the mattress type structure, the lower portion and the upper portion being connected to each other by one or more bracing tie branches which are located in a main plane of the main structure;
• providing a separate plurality of support members,
• positioning a base sheet of mesh of a mattress type structure on a ground surface to be protected;
• connecting each of a number of main structures to at least one support member to obtain a corresponding number of bracing ties, wherein each bracing tie comprises at least one of the support members which extends out of the main plane to produce a generally three-dimensional bracing tie structure which is capable of remaining standing alone erected on the base sheet of mesh;
• filling the mattress type structure with a filling material;
• and
• covering the mattress type structure with a covering sheet of mesh by securing the covering sheet to the number of bracing tie structures.