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介绍了水泥卷锚杆研究的新成果,它包括以特种水泥为充填料的快硬水泥卷锚杆和以普通水泥为基料、外加水泥固化剂的超快硬普通水泥卷锚杆,其特点结构简单、安装方便、工人劳动强度低、适用性强、承载能力快。试验结果表明:锚杆安装后15min就具有承载能力,30min的拉拔力可达到10.4~18.9KN,24h可达60.0~68.7KN,它对采场或巷道具有全长胶结整体加固作用和组合作用,同时还具有预应力作用。
This paper introduces the new achievements of the research on the cement roll anchor. It includes the quick-setting hard-cement roll anchor with special cement as filling material and the ultrafast normal hard concrete anchor with common cement as base material and cement curing agent Simple structure, easy installation, low labor intensity, applicability, carrying capacity fast. The test results show that the bolt has the bearing capacity 15min after installation, the pulling force can reach 10.4 ~ 18.9KN in 30min and 60.0 ~ 68.7KN in 24h, it has full-length cementing for stope or roadway The overall reinforcement and the combination of role, but also has the role of prestressing.