The Engineering Research And Practice On Anchor Bolt Support In Tiefa Mineral Field

The roadway support not only are safety measures that must be carried out in the mine producing,but also are one of vital constituents of mine producing cost. Hence,there are important theory meaning and practical value to research anchor bolt support mechanism and to popularize anchor bolt support technology.The article put forward a peculiar problem of engineering mechanics of wall rock,namely,engineering dimension effect and season effect that is on the basis of knowing the theory researching and practice of anchor bolt support in the world. It pointed out that existed advantageous shearing sections and shearing points on the roof plate and double sides of rectangle roadway. It made up a compute torsion moment model of anchor bolt installation. The academic research is applied to engineering practice,developed holoscrew and identity intensity anchor bolt,brought into effect complex support technology of soft-rock roadway. It generalized systematic ordinances and regulations for anchor bolt inspection,quality examination and so on. It have gained enormous economic benefits.