摘要
提出并实施了以加固沿空异形煤柱为主、悬承锚网支护留巷圈为辅的综合控制技术,形成了对受采动影响的巷道进行机理明确、在关键部位和关键时期进行有效控制的技术体系,并在理论上揭示了异形煤柱不同宽度处巷道支护的作用机理。通过现场实施,取得了较好的支护效果。
Based on the analysis of the pressure characteristics of the remained roadway along goaf, a comprehensive support system is designed and the reasonable parameters of the support system are determined by numerical simulation and analysis of rock broken zone. The supporting mechanism for different width of pillar protection is clarified. The control technique is proposed and employed through reinforcing irregular pillar in its two sides, installing a row of hydraulic prop and anchoring of roof strata which hangs the mesh and bolt rock mass as an auxiliary means to support the gateway. The reinforcing system forms a set of control system, which acts at the key position and in key period in clear mechanism to the mining influenced gateway. The site measurement shows good results of the support.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第A01期5141-5145,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
采矿工程
综放
沿空留巷
异形煤柱
锚网支护
控制系统
mining engineering
fully mechanized top-caving mining
remained gateway along goaf
irregular pillar
the mesh and bolt support
control system