Supply pipe joints anchor

Also known as "rock friction stabilizer", seam pipe anchor is highly dedicated support supplies, advanced materials underground culvert roof and other projects supporting the use of having a manufacturing process is simple, easy to use, in the underground bolting and shotcrete Retaining have strong anchoring, tensile strength, and have a strong expansion force, so that the whole roof into one. Seam pipe anchor Model Meaning and Size: slit tube bolt Type / Length (mm) represented by MF outer diameter (mm), where M represents "anchor." F means "slit tube." Such as MF43 / 1600 represents slit tube bolt, an outer diameter of 43mm, a length of 1600mm. Pipe joints anchor working principle and characteristics: ??? pipe joints anchor is a full length, the new rock bolt reinforcement initiative, pipe joints anchor is a perspective view of part of a longitudinal slit high strength steel, when installed in the borehole diameter slightly smaller than, it can immediately exert a radial pressure over the entire length of the hole wall and prevent the decline of the surrounding rock friction, plus bolt tray supporting pallets force, so that the surrounding rock in three-stress state, and realize the great rock. Pipe joints anchor in the surrounding rock blasting vibration anchor shift, etc., the latter anchoring force has significantly increased, while significant displacement wall rocks, Bolt does not lose its support resistance, than expansion shell bolt have better characteristics. Pipe joints anchor was the main performance and specifications: 1, the main technical performance (1) Initial anchoring force: 3 to 7 tons; (2) pipe ring pull-off load: 8 to 10 tons; (3) the tensile bolt tube Breaking capacity: 12 ~ 13 tons; (4) corrosion resistance than A3 steel by 20 to 30% for long-term use of 2, the technical requirements 1) slit tube bolt surface should be smooth, no serious injury, rust?. Weld should be no cracks, no porosity slag, burn through the wall is not allowed. Tray on the rod should be able to move freely. Retaining ring interfaces and pipe joints opening to be shifted 170o-190o appropriate. 2) Pull off the retaining ring weld force ≥80kN, ultimate tensile rod ≥110kN, first anchoring force ≥25kN / m, pallets carrying capacity ≥65kN. ? 3, the product first with a pneumatic drill bolt holes drilled in the roof, the tray set into the anchor rod, then hammers the rod into the anchor hole in the tray with the top Bangdai posted solid. Users in the use of bolt hole diameter chosen refer to the table in addition to the outside, it should be based on the specific conditions of the rock, according to GBJ86 provisions of the standard selection.