中松动圈围岩状态锚杆支护机理及参数确定

In recent years bolting the rapid development of technology in the coal mine tunnel in the rock to control more and more applications, especially in Britain and Australia bolting technologically advanced countries, the promotion of our country is also studying the bolt support technology. Bolting reinforcement as a result of rock can take the initiative to change the passive support into active support, to effectively improve the situation of the mine pit, with the construction of the convenience, high efficiency, will help speed up the construction progress, and the construction of low cost, support the characteristics of effective, this paper introduces the use of suspension in the theory of loose circle theory to the design of bolting parameters, combined with work on how to examples of specific applications in practice.