深部全煤巷道锚网耦合支护技术应用研究  

Application of Bolting with Wire Mesh Coupling Supporting Technique in Deep-Buried Full Seam Gateway

作　　者：刘文涛[1] 何满潮[1] 齐干[2] 马小钧 郭夕祥 

机构地区：[1]中国地质大学工程技术学院,北京100083 [2]中国矿业大学力学与建筑工程学院,北京100083 [3]大屯煤电集团公司姚桥煤矿,江苏沛县221611

出　　处：《采矿与安全工程学报》2006年第3期272-276,共5页Journal of Mining & Safety Engineering

基　　金：国家自然科学基金重大项目(50490270);教育部科学技术研究重大项目(10405);国家基金委创新研究群体基金项目(50221402)

摘　　要：支护体与围岩在刚度、强度和结构上的不耦合是影响全煤巷道围岩稳定性的主要原因.为解决这一问题,采用新型的锚网索支护方案对支护参数和支护过程进行优化.计算机模拟结果显示,巷道实施耦合支护方案后,应力集中程度减小,高应力区向深部围岩转移,支护系统可靠性明显增强.优化后的支护方案运用于现场,巷道围岩达到稳定的时间较优化前明显缩短.理论和实践表明,深部全煤巷道通过强化支护和适度让压,充分发挥锚网-围岩整体力学效应,可以达到巷道稳定的目的.The major influential factors of the gateway stability is the non-coupling states for the stiffness and strength,as well as the structure of the support system and rock mass. In order to solve the problem, a new bolting with wire mesh and cable support scheme was used to optimize the supporting parameters and procedure. The results of numerical calculation show no stress concentration occurred,and the high stress regions are converted into the deep areas after applying coupling support scheme. The optimized supporting parameters and the working process have been carried out in-situ, and the interval of reaching stability state of entry surrounding rock is obviously reduced. Both theory and practice indicate that the stability of rock can be achieved through fully exerting the mutual action between the bolt with wire mesh and the surrounding rock.

关 键 词：全煤巷道 锚网支护 耦合支护 优化设计 

分 类 号：TD353[矿业工程—矿井建设]