Introduction by doing anchor bolt tension meter construction drawing preparation before the test 1 material (1) prestressed rod material should be chosen strand, high-strength steel or high-strength rebar. When the value is smaller or prestressed bolt length is less than 20m, the prestressing steel may also be Class II or Class III reinforced. (2) cement paste material: cement shall be ordinary portland cement Qinghai bolt tension meter, can be used if necessary sulphate resisting cement, aluminous cement shall not be used. Fine aggregate should be used in sand particle size less than 2mm. Use of water to meet the requirements, the use of sewage shall not use PH value of less than four acidic water. (3) a plastic material casing: should have sufficient strength to ensure it will not be damaged during the installation process and having water resistance and chemical stability, and preservative in contact with the cement mortar, and no adverse reactions. (4) the spacer frame by steel, plastic or other rod harmless material, shall not use wooden spacer frame. (5) anti-corrosion materials: in the anchor service life, should maintain its durability within the specified operating temperature or tensioning process does not crack or become brittle fluid, not in the adjacent material adverse reactions, should be kept its chemical stability and water resistance, not deformation anchor free section of any restrictions. Warner Mechanical and Electrical Equipment Co., Ltd. Tai'an City, produced according to the tension bolt tension meter detection range is divided into: 5 tons bolt tension meter, 10 tons of bolt tension meter, 20 tons of bolt tension meter, 30 tons of bolt tension meter, according to the display different ways and accuracy is divided into two and several mechanical explicit. In addition to the address of the bolt tension meter factors, mainly inadequate anchoring force bolting system caused. After the roadway into the lane, in the original rock gravity and secondary stress (including mining and other kinds of support pressure caused by) the role of surrounding rock deformation, if the rock is not self-stabilizing, and the lack of anchoring force bolting system This deformation is not effectively controlled, it will continue to develop, eventually leading to surrounding rock caving and roof collapse. Between anchor row spacing is too large, improper bolting material selection, matching bolting system is unreasonable, and poor quality of construction will have the consequences. Bolt Notes A, drilling, drilling joints should be perpendicular to the rock face, rock bolt axis of the main structure should slip plane surface or into larger angle. Shall not be applied mechanically radial bolt, and should be adjusted depending on site conditions. B, chemistry kits when plugging into, make sure to plug tightly Hunan bolt tension meter, in order to avoid chemical slurry spill caused by anchoring the end anchor segment untrue. C, chemistry kits in the anchoring of time, we must maintain a solid anchor, not shaking, rotating to ensure anchoring quality. D, at the plate, such as orifice injustice, should be used mortar smooth handling. E, not anchor bolt before its self-important, should prevent slipping wounding anchor bolt tension meter _ Hunan bolt tension meter _ provided by Warner Warner electromechanical electromechanical. This information consists of: Mechanical and Electrical Equipment Co., Ltd. Tai'an City Warner (www.tahnjd.com) offer, we are Commercial Union membership, the integrity of the whole network certification vendor. Feel free to contact us, Contact: Lee