Mine-used anchoring steel belt and roadway roof bolt support method

Abstract

The invention relates to a mining anchoring steel belt and roadway top plate anchor rod supporting method. Mining anchoring steel belts include a transverse steel belt and two longitudinal steel belts, one ends of the longitudinal steel belts are connected with the transverse steel belt, the transverse steel belt and the longitudinal steel belts are integrally formed, a transverse groove is formed on the transverse steel belt, a longitudinal groove is formed on each longitudinal steel belt, a protruding outwards-extending structure is formed at a free end of each longitudinal steel belt, a lapping structure used for being matched with an outwards-extending structure of another mining anchoring steel belt is formed on the transverse steel belt, an anchor rope limiting hole is arranged in each longitudinal groove, and an anchor rod limiting hole is arranged on each outwards-extending structure. Due to adoption of the above technical scheme, temporary supporting effect similar to that of a forepoling bar can be realized; conventional forepoling bar temporary supporting is replaced, so that labor intensity of workers is lowered, and supporting speed is increased.

Description

technical field [0001] The invention relates to the field of mine support equipment, in particular to a mine anchor steel belt and roadway roof bolt support method. Background technique [0002] The temporary support of the roadway is to erect a temporary support material before erecting the permanent support material on the excavation working face in the construction of the shaft to maintain the stability of the roadway and the working space, so as to ensure the safety of the excavation construction personnel. It can be changed to permanent support. [0003] The steel belt is used in conjunction with the bolt and metal mesh in the support of the roof of the coal mine roadway. The single anchor rods are connected into a whole through steel belts, which jointly bear the roof pressure and expand the support area. The strength is high, the combination effect is strong, the rigidity is large, and the bending resistance is good, which can make the roof pressure evenly distribute...

AI Technical Summary

Problems solved by technology

[0006] The shortcoming of the temporary support method of the front probe beam is that there is no initial support force, and it only acts as a cover for the roof. The support strength is low, the roof control area is small, and roof fall accidents are likely to occur. Each excavation cycle, the front probe beam moves forward as a whole, which is time-consuming It is laborious and inconvenient for workers to operate, which seriously affects the speed of roadway excavation, and is very inconvenient for the permanent support erection in the later stage

Images