Abstract: An uprightly-arranged support structure of a protective fence, the protective fence including: a plurality of supports arranged to stand at intervals, the plurality of supports having respective bottom portions thereof arranged to stand via a ground plate on a slope; and a protective net spread between the plurality of supports, wherein the bottom portions of the plurality of supports are arranged to stand so as to be slidable in conjunction with the ground plate in a predetermined direction on the slope.

Abstract: An impact-absorbing levee-shaped structure consisting essentially of a resistant structure formed of reinforced embankment, the impact-absorbing levee-shaped structure includes: a continuous buffer wall of a flexible structure disposed on an impact-receiving surface of the resistant structure; and an anchor unit configured to support the continuous buffer wall, in such a manner that the continuous buffer wall cannot be separated from the resistant structure, thereby capable of preventing the continuous buffer wall from floating from the impact-receiving surface of the resistant structure upon application of impact.

Abstract: An impact-absorbing levee-shaped structure consisting essentially of a resistant structure formed of reinforced embankment, the impact-absorbing levee-shaped structure includes: a continuous buffer wall of a flexible structure disposed on an impact-receiving surface of the resistant structure; and an anchor unit configured to support the continuous buffer wall, in such a manner that the continuous buffer wall cannot be separated from the resistant structure, thereby capable of preventing the continuous buffer wall from floating from the impact-receiving surface of the resistant structure upon application of impact.

Abstract: A bundling tool includes first and second bundling members in plate like shapes. The first and second bundling members respectively include central parts that cover wires, first locking parts that are bendable and extend from first sides of the central parts, and second locking parts that are bendable and extend from second sides of the central parts. When the first and second bundling members clamp the wires therebetween and are to be crimped, the first and second locking parts of the first bundling member are each folded down to abut on an outer surface of the second bundling member at an end part of the locking part, and the first and second locking parts of the second bundling member are each folded down to abut on an outer surface of the first bundling member at an end part of the locking part, thereby crimping the wires.

Abstract: A support post structure includes: a ground plate mounted on a support post anchor driven into the ground or a concrete base; a support post; a universal joint for tiltably supporting a lower end of the post; a lower support plate placed on an upper end of the post; a spring; an upper support plate; a bolt inserted through the lower support plate, the spring, and the upper support plate; a nut threaded into the bolt; and a rope hanging between a mooring part of the bolt and a predetermined position near the lower end of the post. The support post is brought to a standing state when the rope is tightened by the nut and is tiltable in all directions when a guard fence receives a falling rock or the like, autonomously restoring to the initial standing state when the rock is removed.

Abstract: A support post structure includes: a ground plate mounted on a support post anchor driven into the ground or a concrete base; a support post; a universal joint for tiltably supporting a lower end of the post; a lower support plate placed on an upper end of the post; a spring; an upper support plate; a bolt inserted through the lower support plate, the spring, and the upper support plate; a nut threaded into the bolt; and a rope hanging between a mooring part of the bolt and a predetermined position near the lower end of the post. The support post is brought to a standing state when the rope is tightened by the nut and is tiltable in all directions when a guard fence receives a falling rock or the like, autonomously restoring to the initial standing state when the rock is removed.

Abstract: There is provided a guard surface structure excellent in shock-absorbing effect due to an unprecedented structure formed by combining a deformable supporting surface and shock-absorbing members. A guard surface structure comprises a net body 4 supported by support posts 3, such net body 4 comprising a wire mesh 11, and being deformable and provided with shock-absorbing bags 21 filled with sands. By combining the deformable net body 4 and the shock-absorbing bags 21, a force of impact due to rockfall or the like can be effectively absorbed due to deformation behaviors of the shock-absorbing bags 21 and the net body 4. In this case, sands inside the shock-absorbing bags 21 are caused to move when subjected to the force of impact, thereby allowing the shock-absorbing bags 21 to deform and thus absorb the force of impact. Further, the net body 4 deforms after the force of impact has been first applied to the shock-absorbing bags 21, thus allowing the net body 4 to deform less.

Abstract: A shock-absorbing fence comprises: a guard net provided in a stretched state between main posts provided to stand at a predetermined interval; a safety net attached between a skirt of the guard net and a ground; and a member joining an upper rim of the safety net to the skirt of the guard net as well as securing a lower rim of the safety net to the ground, the member including a horizontal support rope member provided along the lower rim of the safety net and a plurality of hillside support rope members connecting between a plurality of points of the horizontal support rope member and a plurality of hillside anchors, the safety net being allowed to deform in an extended manner following deflection and deformation of the guard net, while maintaining a gap below the guard net in a closed state, in case of rockfall.

Abstract: There is provided a shock-absorbing device for a net body of a guard fence, capable of improving a net body's effectiveness of absorbing impact by enlarging the amount of deformation of the net body once the net body has been subjected to a force of impact due to rockfall, mudslide, avalanche or the like. A net body 4 has a net body turn-down portion 24 located on an edge portion thereof and formed by turning down oblique wire members 22 serving as wire members, and a net body intersecting portion 23 in which the oblique wire members 22 intersect with one another. The net body turn-down portion 24 or the net body intersecting portion 23 is linked, by means of a shock-absorbing rope member 40 and a shock-absorbing instrument 30, to an upper transverse rope member 11 or a longitudinal rope member 52, both of which serve as link receiving members of a guard fence 1.

Abstract: There is provided a load bearing material with a high energy-absorbing effect at the time of deformation. A metallic external tube 2, a plurality of internal steel tubes 3, 3A, 3B arranged inside the external tube 2 are arranged by positioning the plurality of internal steel tubes 3, 3A, 3B, and thus, the load bearing capacity is improved by the plurality of the internal steel tubes 3, 3A, 3B. Further, when a load is applied, the internal steel tubes deform in a flattened form to thereby enable the external tube to deform as well. As a result, no stress concentrates locally on the external tube 2, thus improving an energy-absorbing effect. Further, a filler 4 is filled between an inside 21 of the external tube 2 and outsides of the internal steel tubes, thereby enabling the plurality of the internal steel tubes 3, 3A, 313 to be simply positioned.