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管缝锚杆是开缝式摩擦锚杆的简称,我矿于1981年开始进行试验研究与应用,先后完成了室内、现场力学性能及其影响因素的试验。至1983年元月共自行设计、加工锚杆9000余根,支护巷道、采场进路400米左右,安装锚杆3000多根。实践证明,用管缝锚杆维护中等稳固以下围岩和矿体是可行的,能够达到节约坑木和混凝土支护材料的目的。目前该项技术已经通过技术鉴定,正在全国推广应用。现将管缝锚杆在我矿的试验和应
Pipe seamed anchor is the abbreviation of slotted friction anchor. Since 1981, our mine has started to carry out experimental research and application. The tests of indoor and on-site mechanical properties and their influencing factors have been completed successively. To January 1983 a total of its own design, processing more than 9,000 anchor, supporting roadway, stope approach 400 meters, the installation of more than 3,000 roots. The practice proves that it is feasible to maintain the moderately stable surrounding rock and ore body with pipe anchor, which can save the pit and concrete supporting materials. At present, the technology has passed the technical appraisal and is being popularized and applied all over the country. Pipe joints will now be in my mine test and should