Supply Shenyang hollow grouting anchor bolt support tunnel reinforced hollow bolt

Hollow bolt grouting hollow bolt range of products suitable for medium geological conditions, advance support good support and surrounding rock of permanent roads, railways, tunnels, slope protection, foundation support and other projects, through the hollow Pressure grouting anchor body can be achieved by consolidation of broken rock, rock improvement, cut off groundwater and corrosion rod, so as to achieve good support purposes. Hollow bolt body, bolt head, pulp stopper, plate and nut coupling sleeve 1, anchor Body: hollow design of the hole as the drilling rod passage and the high pressure grouting channel feng shui, compared with a solid rod, hollow rod design for better stiffness and shear strength. Bolt the outer surface of the full-length Standard pitch thread structure, thread structure facilitates bolt cutter and take a long, smooth rod increased compared with the bonding area of ??bolt body and grouting material, thereby improving the anchoring force. Since the role of the various parts of the center of the rod well, mortars can be full length of the bolt body wrap, to avoid the risk of corrosion, achieve long-term support purposes. 2, the anchor head: anchor head with steel or plastic anchor head, not only can be fixed and center bolt member and can produce some anchoring force in rock anchor hole. 3, plasma-stop stopper: the pulp plug made of rubber material only, consider the grouting exhaust, a certain seal, easy to realize there is pressure grouting, increased fullness and density grouting materials. Occluding stopper role of the stent. 4, plate forming hot-rolled plate, there is a certain flexibility, ease stress transfer. Pad provides adjustable angle of 7 degrees to facilitate snug rock surface. 5, nut using a hemispherical or hex nuts, can be applied by a nut on the rod initiative stresses. Features 1, the bolt and grouting pipe functions into one, it is when grouting grouting pipe, end note without pulp aside after it becomes a bolt. 2, the hollow design allows the bolt to achieve a grouting tube function, to avoid the loss of traditional mortar grouting construction process caused by the tube aside. 3, full grouting, pressure grouting can realize improved project quality. 4, since the role of the various parts of the center of the rod is very good, the mortar can be the full length of bolt body wrap, to avoid the risk of corrosion, achieve long-term support purposes. 5, easy installation, no on-site processing thread, you can easy to install plate and nut. 6, with supporting special injection pump and bolt grouting technology, is the only complete solution to the traditional problems of anchorage support anchorage system. Bolt specifications and technical parameters Model 2528323851 customize other specifications nominal diameter (mm) ￠ 25 ￠ 28 ￠ 32 ￠ 38 ￠ 51 Ultimate tensile strength (Kn) ≥180 ≥220 ≥250 ≥350 ≥500 anchor hole diameter (mm) 42 44 51 64 76 tooth height (mm) 1.5 Pitch (mm) 12.7 Threading direction L-standard length (m) 2.0 2.5 3.0 3.5 4.0 4.5