A barrier structure for impeding erosion due to mudslides allows mud to enter through large holes in a barrier wall, and water separated from soil to drain out through smaller holes in a rear wall. An underlying reservoir can further stabilize the structure by rapidly collect water and/or mud. A backstop wall and/or an extension can be abutted to a top of the barrier wall to enhance mud collection during a mudslide. The structure can further include a penetrating passage enabling a fraction of impacting mud to flow through unimpeded, and/or a diverting wedge uphill of the apparatus diverts some impacting mud and debris while allowing a remainder thereof to pass through to the barrier wall. A plurality of the barrier structures can be installed such that mud flowing past an uphill structure impacts a downhill structure. The barrier structure can be constructed from biodegradable materials.

A barrier structure for impeding erosion due to mudslides allows mud to enter through large holes in a barrier wall, and water separated from soil to drain out through smaller holes in a rear wall. An underlying reservoir can further stabilize the structure by rapidly collect water and/or mud. A backstop wall and/or an extension can be abutted to a top of the barrier wall to enhance mud collection during a mudslide. The structure can further include a penetrating passage enabling a fraction of impacting mud to flow through unimpeded, and/or a diverting wedge uphill of the apparatus diverts some impacting mud and debris while allowing a remainder thereof to pass through to the barrier wall. A plurality of the barrier structures can be installed such that mud flowing past an uphill structure impacts a downhill structure. The barrier structure can be constructed from biodegradable materials.

A device (1) comprises: a cylindrical shell (4); a first spring (5) encased inside the cylindrical shell (4); a second spring (6) encased inside the cylindrical shell (4); a separator (13) in the cylindrical shell (4) separating the first and second springs (5, 6); a first end plate (12) on a first side (13a) of the separator (13) and a second end plate (11) on a second side (13b) of the separator (13); a first rod (2) and a second rod (3) passing openings (20a, 20b) provided at each end of the cylindrical shell (4), with the first rod (2) connected to the first end plate (12) and the second rod (3) connected to the second end plate (11); and a spacer (14) inserted between the first end plate (12) and the first spring (5).

A panel system for the containment of landslides caused by partial collapses and also by “rock breakdowns”, for use in the fortification of mining tunnels, hillsides and roads, together with anchor bolts and plates, comprising a network constituted by straps of metal or other material resistant to traction or with the capacity of tearing along the strap (1) (2) (3), with each node of this network firmly linked with a buckle (6) (7) (8) (16) and with a frame (20) attached to this network, where the frame comprises flat tendons (17) near the perimeter of the panel, linked to plates with lugs (D11) or with flat connectors (12) (13) (14) (15) which go beneath the normal plates.

An expandable modular energy-dissipation protection net unit group includes support columns each provided at each of two ends of each support column with a first horizontal longitudinal rotation reversing device on the left side, a second horizontal longitudinal rotation reversing device on the right side and a transverse rotation reversing device on the bottom; a transverse endless support rope, a longitudinal endless support rope and connectors. The transverse endless support rope is wound on the transverse rotation reversing device. The longitudinal endless support rope is wound on the first horizontal longitudinal rotation reversing device and the second horizontal longitudinal rotation reversing device adjacent. A metal net panel is tied by the plurality of connecting members and hung on the transverse endless support rope and the longitudinal endless support rope.

A combined type flexible glass net system used for protection against full-particle falling rocks on plank roads in scenic spots includes a supporting layer, an intercepting throwing layer and a flexible glass net isolating layer, wherein the supporting layer is longitudinally arranged above a protective area along a mountain, and includes a supporting steel frame and an oscillating type supporting rod; the intercepting throwing layer is supported on the supporting layer, and includes metal meshes, an along-cross-slope upper connecting rope, an along-cross-slope lower connecting rope, an along-slope connecting rope and a reinforcing rope; and the flexible glass net isolating layer includes glass plates, glass net supporting cables and a hoop type hinged piece, wherein the glass plates are connected to the glass net supporting cables through the hoop type hinged piece, and the glass net supporting cables are hung below the supporting steel frame.

A combined type flexible glass net system used for protection against full-particle falling rocks on plank roads in scenic spots includes a supporting layer, an intercepting throwing layer and a flexible glass net isolating layer, wherein the supporting layer is longitudinally arranged above a protective area along a mountain, and includes a supporting steel frame and an oscillating type supporting rod; the intercepting throwing layer is supported on the supporting layer, and includes metal meshes, an along-cross-slope upper connecting rope, an along-cross-slope lower connecting rope, an along-slope connecting rope and a reinforcing rope; and the flexible glass net isolating layer includes glass plates, glass net supporting cables and a hoop type hinged piece, wherein the glass plates are connected to the glass net supporting cables through the hoop type hinged piece, and the glass net supporting cables are hung below the supporting steel frame.

A system of the invention includes at least one barrier layer, a plurality of rockfall attenuators and two primary anchor points to anchor opposite lateral sides of the barrier layer. The attenuators are secured to an upper portion of the barrier layer. The attenuators create a gap between the surfaces of the slope upon which the barrier layer is installed. The attenuators are attached to the barrier mesh by a cable routed through a clevis/eyelet on each of the attenuators. Opposite ends of the cable are secured to the sloping surface by the two primary anchor points. The attenuators are free floating members that are not attached to the sloping surface. The invention also comprises attenuators as a sub-combination and a method of installing the system. One embodiment of an attenuator includes interconnected structural members resembling a closed-shaped frame. Another embodiment includes a covering placed over the structural members.

Implementations described and claimed herein provide for modular snow and ice retention and mounting systems. In various embodiments, a bracket may comprise a mounting strap, a hybrid pad, a bracket assembly and a rod. The hybrid pad may comprise a face portion and a support portion. The face portion and the support portion may be operatively coupled together. The hybrid pad may be operatively coupled to the mounting strap. The face portion may comprise a stiffening rib. The stiffening rib may be defined in a front surface of the face portion. The stiffening rib may define a first load plane. The face portion may also define a first rod notch. The first rod notch may be defined on a first side of the face portion. The face portion may also define a second rod notch. The rod may be mountable to the hybrid pad.

Implementations described and claimed herein provide for modular snow and ice retention and mounting systems. In various embodiments, a bracket may comprise a mounting strap, a hybrid pad, a bracket assembly and a rod. The hybrid pad may comprise a face portion and a support portion. The face portion and the support portion may be operatively coupled together. The hybrid pad may be operatively coupled to the mounting strap. The face portion may comprise a stiffening rib. The stiffening rib may be defined in a front surface of the face portion. The stiffening rib may define a first load plane. The face portion may also define a first rod notch. The first rod notch may be defined on a first side of the face portion. The face portion may also define a second rod notch. The rod may be mountable to the hybrid pad.