金川1号力学试验巷道的设计与施工——喷锚网支护结构在金川高应力破碎岩体中的应用

Design and Construction of Gallery No.1 for Mechanical Tests in Jinchuan Mining

金川不良岩层中巷道的变形破坏十分严重,是影响金川有色金属公司生产成本和矿山建设的关键所在。多年来,围绕不良岩层中巷道地压的控制管理,金川有色金属公司组织了几十个科研、设计、生产、高校等单位的科技人员进行联合攻关,并取得了不少重大成果。但是,要想真正把握金川不良岩层中地压显现的规律,制定一套有效控制高应力破碎岩体中巷道地压的措施,还有待进一步的深入研究。本文所介绍的“金川1号岩石力学试验巷道的设计与施工”:是采用喷锚网支护结构,利用二次支护方法,制服金川高应力破碎岩体中巷道围岩变形破坏的一个示范。

The deformation failure of the galleries in unfavourable rock formations in Jinchuan is well-known in China, which is the crux affecting the production costs and the mining construction of Jinchuaan Nonferrous Metal Company, The company, for many years, has invited a great numher of researchers from dosens of scientific institutes, universities and engineering design departments to tackle this crux problem, centering on controlling the earth pressure on the galleries and obtained a certain number of significant achievements. However, to have a real grasp of the earth pressure law of Jinchuan unfavourable rock formations and to make a set of measures to control effectively the pressure acting on the galleries in a ruptured rockmaes with a high geostress, one must carry out further thorough research.What is described in this paper is an example to tame the deformation failure of the Jinchuan galleries in a high-stressed ruptured rockmass by means of secondary supporting method using the spout anchorge supporting system.