A mobile spread-out separating and protecting barrier consisting of air-filled side walls and a base, characterized in that at least two side walls (1) are hinged together in the upper part and connected with at least one plane that constitutes the base (2), wherein the side walls (1) preferably have at least one hole (3).

A protective structure is provided that is configured to crush descending items into particles. The protective structure comprises an upper mesh layer made of hard material capable of crushing the descending items and a bottom layer made of combined hard material and relatively soft material, wherein the bottom layer is capable of absorbing the particles. The protective structure is further provided with a plurality of supporting poles that are positioned between the upper mesh layer and the bottom layer.

[要約] [課題]斜面の安定性を確保しつつ、杭構造体の良好な安定性を維持でき、長期に亘って高い雪崩予防機能を持続できる雪崩予防施設を提供すること。 [解決手段]斜面１０に敷設した保護網２０と、アンカー４０で斜面１０に固定した複数の杭構造体３０とからなる。アンカー４０に反力を得て保護網２０の上面に杭構造体３０の接地板３２，３３を接面させて立設するとともに、杭構造体３０とアンカー４０とにより保護網２０を斜面１０に固定する。

　本発明は、砂移動防止や植物育成用の材料として、軽量で輸送が砂漠地帯などでも容易であり、かつ設置の作業性が良好で作業者の負荷を軽減した砂移動防止工法で且つ、植物を育成することも可能な方法を提供する。本発明の砂移動防止方法は、モノフィラメントから構成されるネットを砂移動防止材として用い、砂地面上に前記ネットの一部が埋められ、且つ前記ネットの他の一部が砂地面に立てられた状態で前記ネットを設置する。

A deployable sight screen comprising: a gabion comprising opposed side walls connected together at spaced intervals by a plurality of partition walls such that spaces between neighbouring pairs of partition walls define, together with the side walls, one or more individual compartments of the gabion; a material substantially covering one or more surfaces of said gabion; wherein said material is effective to prevent a line of viewing through said gabion; and said material is arranged to allow the passage of air therethrough.

A falling rock preventing fence assembled with a steel net is disclosed, in which a plurality of support members are provided in a pipe shape having a rectangular grooves in upper and lower longitudinal directions, with the support member being installed on the ground at regular intervals, and both ends of the steel net formed in a rectangular plate shape are inserted into the rectangular grooves of the neighboring support member and are fixed using a fixture such as a bolt, etc., and the upper and lower portions of the steel nets stacked in the upper and lower direction are connected with a connection member such as a bolt, etc., and the strength of the steel net is enhanced by the rectangular grooves longitudinally formed in the support member and the end of the steel net inserted in the rectangular groove.