A high-strength wire mesh formed by a wire having a tensile strength exceeding 2200 MPa, and having an amount of deflection of 707 mm or greater as a net body under the following conditions,

conditions: a length of a cantilever beam that supports the net body in a line wire direction in a cantilevered state is 1000 mm, and an amount of displacement in a vertical direction of a free end at this situation is defined as the amount of deflection.

In this manner, a high-strength wire mesh that is formed by a wire with a high tensile strength and that also has the followability to the unevenness of the slope surface is provided.

A modular system of fencing components that can simulate the appearance and texture of traditional fencing materials is provided having novel connection and support components and systems to accommodate for thermal expansion while remaining strong, lightweight, easy to install and repair, and cost effective.

A barrier structure for bearing a high-energy impact and construction method thereof are provided. The barrier structure includes a supporting pile array arranged between two opposite mountain slope surfaces. The supporting pile array is arranged in a straight line and includes two or more supporting piles. The two or more supporting piles are fixed at a lower part of a mountain. A barrier net is connected to the two or more supporting piles. The barrier net passes through the supporting pile array and extends to the two opposite mountain slope surfaces. The barrier net is fixed on the two opposite mountain slope surfaces. Pull plates are disposed on the two opposite mountain slope surfaces, and one side of each of the pull plates is fixed to a corresponding slope surface of the two opposite mountain slope surfaces through reverse prestressed anchor cables.

An anchor is provided whose number of processes of work at the time of performance of installation work can be reduced and which can selectively fix a plurality of types of fixing targets. An anchor 10 includes: a shaft 22 to be buried in a ground; a head 24 into which a propulsive force for propelling the shaft 22 in the ground is inputted, the head 24 being provided on an upper end portion 22a of the shaft 22; and a sleeve 26 having a tubular peripheral wall portion 42 placed around the head 24. An outer diameter of the head 24 is specified to be greater than an outer diameter of the shaft 22. Consequently, an undersurface 32a is secured on an outer peripheral portion 32 of the head 24. The peripheral wall portion 42 is provided in an upper end portion 42a with an opening portion 44 in which a first fixing target 12c, 12d, or 12f is fitted as needed. The peripheral wall portion 42 is provided in a lower end portion 42b with a retainer 46 including an opposing surface 48 facing the outer peripheral portion 32 (the undersurface 32a) of the head 24 from below, and a retaining surface 50 to be pressed against a second fixing target 12a or 12b from above as needed.

A barrier structure for bearing a high-energy impact and construction method thereof are provided. The barrier structure includes a supporting pile array arranged between two opposite mountain slope surfaces. The supporting pile array is arranged in a straight line and includes two or more supporting piles. The two or more supporting piles are fixed at a lower part of a mountain. A barrier net is connected to the two or more supporting piles. The barrier net passes through the supporting pile array and extends to the two opposite mountain slope surfaces. The barrier net is fixed on the two opposite mountain slope surfaces. Pull plates are disposed on the two opposite mountain slope surfaces, and one side of each of the pull plates is fixed to a corresponding slope surface of the two opposite mountain slope surfaces through reverse prestressed anchor cables.

The present invention provides a yieldable construction method for early releasing surrounding rock deformation on a weak toppling slope, thereby reducing surrounding rock toppling deformation risk in and after an excavation process and ensuring overall slope stability and safety of a supporting structure. A technical solution of the present invention is as follows: loosing a rock mass through controlled blasting; inducing toppling deformation of the slope by injecting water and softening a blasting relaxation part of the rock mass; determining timing of water injection by monitoring slope surface displacement characteristics of the slope; and performing a normal excavation process of the toppling deformation slope after injecting is completed. The present invention is applicable to design and construction of high slope engineering of a special kind of rocks, i.e., a toppling deformation slope composed of weak rock masses.

A self-starting negative pressure drainage system for draining groundwater in a slope, includes: a declined borehole, a pipe boot, a permeable pipe and a drain pipe; wherein the declined borehole is divided into a permeable drilling section and a sealed grouting drilling section; wherein the permeable drilling section is on a lower portion of the declined borehole, and the sealed grouting drilling section is on an upper portion of the declined borehole; a water stop ring made of water-expanding rubber is provided between the permeable drilling section and the sealed grouting drilling section; the permeable drilling section comprises the permeable pipe; a top of the permeable pipe contacts the water-expanding rubber; a cavity is formed in the permeable pipe, groundwater is capable of penetrating into the cavity via the permeable pipe; an inlet of the drain pipe passes through the water stop ring made of water-expanding rubber and is inserted into the permeable pipe; a gap between the drain pipe and the drilling wall of the sealed grouting drilling section is filled with the cement mortar. The infiltration of groundwater causes the water pressure in the permeable drilling section to rise, forcing the groundwater from the borehole to naturally flow out of the orifice. After the drainage process is started, siphon acts cause a negative pressure zone formed in the permeable drilling section to force the groundwater in the slope flows quickly to the borehole. The invention is capable of realizing the real-time continuous drainage in the deep portion of the slope, which solves the drainage treatment problem of the large landslide, and ensures a low engineering cost of maintaining the stability of the slope.

A self-drainage anchor cable system is provided, wherein a drainage section (15) is arranged above the internal anchoring section (14) of an anchor cable; a first end of the steel strand (2) extends into a bottom of the borehole (1); the isolation pipe (3) is sleeved on the steel strand (2) in the drainage section (15), and the permeable pipe (4) is sleeved on the isolation pipe (3); a length of the isolation pipe (3) is larger than a length of the permeable pipe (4), and there is a space (5) between the isolation pipe (3) and the permeable pipe (4); the water stop rings made of water-expanding rubber (6) are provided at both ends of the isolation pipe (3), and end portions of the permeable pipe (4) are in contact with the water-expending rubber water stop rings (6) A construction method for the self-drainage anchor cable system is also provided.

A rock burst active prevention and control mechanism, which includes: a NPR reinforcing mesh, rod bodies, NPR steel panels, an embedding reinforcement and a NPR steel fibre concrete, the NPR reinforcing mesh is formed by horizontal and vertical interlacing of NPR steel bars, and is provided against a surrounding rock of a tunnel, extending ends of the rod bodies are penetrated out of a hole of the NPR reinforcing mesh, the NPR steel panels are provided with multiple through-holes, the rod bodies, which are located on a same radial plane in the tunnel, are connected to one of corresponding NPR steel panels, the embedding reinforcement is connected between the extending ends of two adjacent rod bodies, the NPR steel fibre concrete is overlaid on the extending ends of the rod bodies and the embedding reinforcement.

A slope trimming attachment includes a base, a first cutting device, a leveling mechanism and a turning mechanism. The first cutting device and the leveling mechanism are respectively arranged on the turning mechanism. The turning mechanism is rotatably arranged on the base and is configured to be able to adjust an angle of the cutting surface of the first cutting device relative to the slope surface and an angle of the leveling surface of the leveling mechanism relative to the slope surface through rotation. A working machine with the disclosed slope trimming attachment is not only convenient to operate, but also realizes the simultaneous execution of cutting, leveling and compacting operations on the slope surface, improves the construction efficiency of the slope surface trimming, and thereby ensuring the construction quality.