An assemblage of containers holding a porous medium is established in a landfill in fluid communication with a leachate drainage layer. A gas extraction well is drilled through the waste matter layers of the landfill into the assemblage. The assemblage augments gas flow throughout the landfill to the gas extraction well and drainage of leachate percolating through the landfill to the leachate drainage layer.

A flexible panel includes: a plurality of first blades made of semi-rigid material, of rectangular shape, having a pair of long sides and a pair of short sides; a pair of textile membranes which connect each pair of said first blades along said long sides; each of the plurality of first blades include at least one second blade, of quadrilateral shape, connected in a folding manner to one of the short sides, along a line of contact between one of the plurality of first blades and the at least one second blade; when the panel opens it creates vertical tubular hollow areas laterally delimited by the plurality of first blades and by the one pair of textile membranes which joins them.

The present disclosure relates to a three-dimensional drainage device suitable for a loose filling slope and methods for constructing the three-dimensional drainage device. The slope includes a stable stratum and a filling soil stratum above the stable stratum. The three-dimensional drainage device includes a surface drainage mechanism, a shallow drainage mechanism and a deep drainage mechanism. The surface drainage mechanism includes one or more catchment canals arranged on an upper surface of the filling soil stratum and a pool arranged on an edge of the filling soil stratum. The shallow drainage mechanism includes one or more first collecting pipes. The deep drainage mechanism includes one or more drainage gabions and one or more second collecting pipes.

The present invention concerns a gabion (1) comprising: a cage (10) basically box-shaped, made up of a bottom (11), two frontal walls (12, 13) and two side walls (14, 15). That bottom, frontal and side walls are all formed from meshes respectively (11.1, 12.1, 13.1, 14.1, 15.1) that are fixed to each other; two compartmenting partitions (20, 30), that each connect the side walls to one other within the interior of the cage so that the internal volume (V10) of the cage is divided into: two frontal compartments (C1, C2) that are each filled with a filler material (70) made up of aggregate that cannot pass through the respective meshes of the bottom, the frontal or the side walls, nor through the compartmenting partitions in such a way that it is retained within those frontal compartments, and an intermediate compartment (C3), bounded by the compartmenting partitions and which is able to receive a granular acoustic insulation material (2); and at least one lifting partition (50, 60), that fixedly connects the frontal walls (12, 13) to each other within the cage extending through each of the frontal compartments and the intermediate compartment, which, opposite the bottom (11), is provided with at least one grab handle (51, 61), and which, for the part that is set out in the intermediate compartment, is suited to allowing the acoustic insulation material granules (2) to pass through it in such a way that the acoustic insulation material may spread freely, within the intermediate compartment, on either side of the lifting partition.

A containment gabion for containment and transport of inert material including a base plate and side walls, in the form of wire meshes composed of horizontal and vertical rods in crisscrossed arrangement. At least one vertical wall at its end is connected to the base plate of the containment gabion, by first hooks, which are designed to impart structural stability and resistance to vertical stresses caused by the weight of the material, during unloading, loading and transport of the gabion.

This application discloses a geotextile-based structure for soil stabilization, erosion control, and vegetation-growth enhancement that is made from a cage having a hollow interior lined with a geotextile fabric designed to retain fine materials, which cage is attached to a geotextile mat capable of supporting vegetation.

A cellular confinement system includes PET sheets and honeycomb-shaped cells formed by intercrossing the PET sheets. A connecting hole is provided at a joint where the PET sheets are intercrossed. An injection molded fixing component for connecting the PET sheets is provided at the connecting hole. The injection molded fixing component includes an injection molded rod arranged in the connecting hole and fixing plates each arranged to be fixedly connected to a corresponding end of two ends of the injection molded rod. The fixing plates each fits against a side wall of a corresponding PET sheet. The injection molded fixing component includes the injection molded rod and the fixing piece. The injection molded rod is configured to connect the PET sheets at the joint where the PET sheets are intercrossed. The fixing plate is configured to prevent the PET sheets from being disengaged from the injection molded rod.

An anchor comprising a supporting framework (30), the supporting framework (30) being a rigid structure formed from a set of interconnected uprights (44) and cross-members (40, 48, 52) that together define a generally cuboidal hollow interior portion of the supporting framework; the supporting framework being collapsible, when not in use, to fit within a liner (34) that can optionally be suspended within the supporting framework.

An assemblage of containers holding a porous medium is established in a landfill in fluid communication with a leachate drainage layer. A gas extraction well is drilled through the waste matter layers of the landfill into the assemblage. The assemblage augments gas flow throughout the landfill to the gas extraction well and drainage of leachate percolating through the landfill to the leachate drainage layer.

A confinement structure comprises one or more open cells (70) for confinement, in use, of particulate fill materials such as soil, sand or aggregate. The cells (70) comprise walls (72) formed of a composite material comprising a polymeric grid layer laminated to a fabric layer. The walls (72) may be formed from a strip of the composite material comprising one or more living hinges. The cells (70) may be provided with skirt portions (74) that extend from at least some of the walls (72).