A high strength environmental control device comprising a mesh container having at least one interior and one exterior surface is provided. The interior of the mesh container can comprise a filler material. The mesh container can comprise a plurality of yarns, including viscose fibers, interlaced together.

Provided is a sandbag which is unlikely to break down even when using water-absorbing resin particles therein. A sandbag having a water-permeable bag and water-absorbing resin particles stored in the bag, wherein the pure-water absorption factor of the water-absorbing resin particles is at least a factor of 1,000, and the compression-breaking stress of the water-absorbing resin particles when swollen with pure water is at least 0.1N.

A device is provided for producing a tubular container which is able to be filled with granular, pulverulent, pourable and flowable materials, wherein the container can include webs manufactured from geotextile material. The device includes a displaceable frame with at least one unwindable geotextile web, wherein the frame includes a filling trough with an outlet hopper for the material, and wherein the filling trough has a conveying device for the filled material, the conveying device acting counter to the direction of movement of the frame, which, at the rear end of the filling trough, surrounds the material in an enveloping manner, in the region of the outlet hopper, by the unwindable geotextile web, as the frame is advanced, so as to form a tube.

A scour prevention unit includes a bag body housing block objects in a bag material, and a cloth integrated with the bag body, wherein the cloth is housed in the bag material and is laid below the block objects, or is fixed below the bag body outside the bag body by fixing means.

An erosion control apparatus includes a flexible, container and a cord. The container includes a container upper side, a container lower side opposite the container upper side, a container trailing end, a container leading end opposite the container trailing end, and a container mouth toward the container leading end. The container mouth provides an opening to a container interior. The cord is attached between the container mouth and an attachment point toward the container trailing end. The cord draws the container mouth toward the container trailing end due to a length of the cord between the container mouth and the attachment point being shorter than a length of the container between the container mouth and the attachment point. The cord further draws the container mouth toward a closed position as sediment enters the container mouth, fills the container interior, and urges the container leading end away from the attachment point.

An erosion control apparatus is disclosed herein comprising a filtering member defining a looped portion; a guide member positioned within the looped portion of the filtering member; and a support member insertable in the looped portion of the filtering member. The guide member facilitates insertion of the support member into the looped portion of the filtering member.

The present disclosure relates to a container with an encasement, the encasement surrounding a filling, whereby the encasement is made of a yarn, the yarn comprising a core and a sheath surrounding this at least in part, where the core comprises a mineral fibre extending in the longitudinal direction of the yarn. According to the present disclosure, it is provided for the sheath to comprise at least one biodegradable sheath fibre, whereby the mineral fibre is encased, at least in certain regions, by the at least one biodegradable sheath fibre.

A portable, water-filled barrier system includes a water-fillable module that is internally divided into cells that emulate a section of a sandbag dike or wall, the module being supported by a hollow frame including a base below the module and a rear wall behind the module. Holes allow flood water to enter the frame's interior. A peripheral base rim can surround and restrain the module. At least one brace can extend from behind the rear wall of the frame to underlying terrain, where it can be wedged or staked in place. The frame can be unitary or can comprise separate base and rear wall constructions that can be assembled to form the frame, for example by inserting a portion of one into a trough provided in the other. A fitting can extend between the assembled base and rear wall to allow water to flow between the hollow interiors.

A sack for realising civil engineering works, including a sack structure with two main faces defined by two respective equal main areas of cloth that are joined over most of their periphery. The main areas of cloth define an opening for introducing filling material into the sack structure when in use. The sack includes at least one area of protective cloth whose resistance characteristics differ from the main areas of cloth. The area of protective cloth is fastened to the outside of the sack structure so as to substantially cover a single main face thereof.

An erosion control system of interconnected bags with water permeable fill material. The top panel of each bag is a geotextile mesh material so that water can pass into the bag and into the water permeable fill material. The bottom panel of each bag is a geotextile mesh that is non-degradable and slightly water permeable. The bags are connected in the end to form a trough through the permeable fill material.