Technical And Economic Analysis On Bolt-Mesh-Anchor Supporting Of Coal Roadway

Roadway supporting technology is one of the key coal mining technology. Safety, reasonable and effective mine roadway support is to guarantee the realization of the necessary conditions for high yield and high efficiency, it is necessary to improve the economic benefit. With the progress of The Times, the development of science in the form of roadway surrounding rock is a significant change. The roadway bolting support from passive to active support transformation from tradition, to the tents of retaining bolt-mesh-anchor supporting transformation.Bolt-mesh-anchor supporting is an efficient way of roadway surrounding rock in, To strengthen the surrounding rock strength up, which significantly improve the stability of surrounding rock, And has the support of low cost, fast lane into labor intensity, light, high efficiency and extraction roadway section points maintenance technology, operating environments and simplified significantly improved the conditions for safe production, enhance the advantages of economic benefit. Therefore, bolt-mesh-anchor supporting has become a major mine roadway bolting form, coal roadway supporting technology represents the main development direction. More importantly, bolt-mesh-anchor supporting points and simplify the working process, improve the advance supporting of roadway supporting condition, ensure the safety of coal production, for the rapid development of creating good conditions. Can say, bolt-mesh-anchor supporting of underground engineering is an advanced support form.Based on the theoretical foundation for the coal roadway support, to investigate and study the present tunnel roadway supporting of Suncun Coal, Put a different geological conditions and surrounding rock stress bolt-mesh-anchor supporting forms of selecting principle, To cost theory, engineering, economics of various methods for bolt-mesh-anchor supporting forms of economic analysis, research and surrounding rock stress at different geological conditions bolt-mesh-anchor supporting cost and the stability of surrounding rock of roadway surrounding rock deformation (the relationship between), By means of analyzing the marginal, best supporting parameters. Finally realize the roadway bolt-mesh-anchor supporting reliable safety and feasible in technique and reasonable in economy of the target.