论文部分内容阅读
为研究孤岛工作面回采巷道锚杆控制技术,通过对原控制技术下巷道变形破坏机理进行分析,并结合锚杆控制技术原理,认为锚杆支护形成的锚固承载体对其外部围岩有支承和让压作用,提出高预紧力高支护强度加强支护的锚杆控制技术,并与原控制技术在数值模拟、现场监测、经济效益3个方面进行比较,得出锚杆控制技术是一种行之有效的支护方式。
In order to study the bolt control technology of mining gateway in Gudao working face, by analyzing the deformation and failure mechanism of the roadway under the original control technology and combining with the principle of bolt control technology, it is considered that the anchor carrier formed by the bolt support has support to its external surrounding rock And let the pressure effect, put forward the high preload strength and high support strength to strengthen the support of the anchor control technology, and with the original control technology in numerical simulation, on-site monitoring, economic benefits from three aspects, concluded that anchor control technology is An effective support method.