Taian Yongduo Machinery Manufacturing Co., Ltd.

N (no weld failure, no false weld), can withstand the impact of local deformation of the surrounding rock (deformation ≤5% without cracking). Process characteristics: Warp and weft weaving/resistance spot welding, flat mesh surface, uniform mesh size, easy to adhere tightly to the surrounding rock. Matching quick binding parts (galvanized iron wire/special buckle), binding spacing ≤200mm, ensuring a firm connection with the anchor bolt. (III) Advantages of Collaborative Support Rapid response: Total installation time of anchor bolt + mesh ≤30 minutes/㎡, shortening the exposure time of the surrounding rock and reducing the risk of collapse. Dual protection: Anchor bolts bear deep tensile force (limiting overall deformation), mesh disperses surface pressure (preventing small pieces from falling), forming a closed loop of "deep stability + surface protection". Environmental adaptability: Moisture resistant, impact resistant, flame retardant and antistatic, suitable for flammable and explosive environments such as coal mines, conforming to "MT 146.2-2018 Technical Specification for Coal Mine Anchor Bolt Support". (IV) Applicable Scenarios Subdivisions Coal Mine Underground: Support for longwall face roadways, transport roadways, and chambers (pump rooms, substations), suitable for soft rock, fractured rock masses, and high-gas environments. Metal Mine Underground: Reinforcement of surrounding rock in tunneling roadways and mining areas, suitable for hard rock and moderately fractured rock masses, can be combined with shotcrete to form "anchor-mesh-shotcrete" combined support. II. Anchor Bolt-Mesh Support System for Slopes (Open-pit Design) (I) Core Technical Parameters of Anchor Bolts Material Specifications: Optional Materials: High-strength hot-dip galvanized rebar (HRB400 grade, zinc coating thickness ≥85μm), GFRP (glass fiber reinforced plastic, diameter 25-40mm), both possessing weathering and corrosion resistance capabilities. Supporting components: Grouting pipe (PE material, diameter 16-20mm), anchor plate (200×200×16mm/Q235 steel, hot-dip galvanized), anti-corrosion sleeve (PVC material, wrapping the free section). Performance indicators: Tensile strength: Steel anchor ≥400MPa, GFRP anchor ≥300MPa, long-term pull-out force ≥100kN (design service life ≥50 years). Grouting material: Cement mortar (strength grade M30-M40) or chemical grout (epoxy resin, bonding strength ≥3.0MPa), suitable for different rock types and bonding requirements. Process features: Ribbed/grooved anchor section design enhances embedding force with grout and soil/rock; the free section is treated with anti-corrosion to prevent corrosion in open-air environments. Threaded + double nut design at exposed ends facilitates mesh fixing and subsequent tensioning adjustments. (II) Core Technical Parameters of the Mesh Panel Material Specifications: Standard Version: Hot-dip galvanized steel wire mesh (wire diameter 2.0-4.0mm, galvanized layer thickness ≥60μm), PVC coated steel wire mesh (coating thickness ≥0.8mm), aperture 100×100mm-200×200mm. Special Version: Gabion mesh (low carbon steel wire, wire diameter 2.5-4.0mm, aperture 80×100mm-120×150mm), geogrid (PP/PE material, tensile strength ≥20kN/m), suitable for soil/loose rock slopes. Performance Indicators: Tensile Strength: Steel wire mesh ≥350MPa, geogrid ≥25kN/m, elongation at break ≤15%, UV aging resistance (strength retention rate ≥85% after 5000h UV irradiation). Process Features: Woven/welded, with uniform tensile strength, and edge-wrapped (to prevent fraying). Suitable for slope design (high-density mesh for slopes ≤ 1:0.5, large-aperture drainage mesh for slopes > 1:1). (III) Advantages of Synergistic Support: Long-term durability: Double corrosion protection (hot-dip galvanizing + PVC coating) with anchor bolts and mesh, resisting outdoor rainwater, temperature differences, and weathering erosion, with a service life of over 50 years. Comprehensive protection: Deep anchoring of anchor bolts limits slope slippage and creep, while surface tensioning of the mesh prevents large-area peeling. Soil slopes can be combined with grouting to form an "anchor-mesh-spray" composite support, enhancing soil cohesion. Flexible construction: Compatible with large-scale outdoor drilling equipment, the mesh can be cut and spliced ​​according to the slope shape, and the aperture design balances protection and drainage, preventing rainwater accumulation that could lead to slope instability. (iv) Applicable Scenarios Rock Slopes: Highway/railway subgrade slopes, mine spoil heap slopes, and dam shoulder slopes of water conservancy projects; suitable for intact and fractured rock masses (using high-density steel wire mesh). Soil Slopes: Municipal road slopes, industrial park fill slopes, and riverbank slopes; suitable for silty soil and sandy soil (using geogrid + grouting anchors to enhance soil shear strength).