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冶金部委托湖南省冶金局于1982年12月6日至9日在湖南茶陵湘东铁矿矿务局主持召开了开缝式摩擦锚杆技术鉴定会.这项试验研究是由冶金部建筑研究总院、湘东铁矿矿务局、湘潭锰矿和山东焦家金矿等单位完成的.会议鉴定认为,开缝式摩擦锚杆是一种全长锚固、主动加固围岩的新型锚杆,安装后能立即对围岩施加三向预应力,在爆破震动、围岩位
Ministry of Metallurgy commissioned the Hunan Provincial Metallurgical Bureau in December 6, 1982 to 9 in Hunan Chaling Xiangdong Iron Ore Bureau hosted a slotted friction bolt technology appraisal meeting.This pilot study is the Ministry of Metallurgical Construction Research Institute, Xiangdong Iron Ore Bureau, Xiangtan manganese ore and Shandong Jiaojia gold and other units to complete the meeting identified that the slotted friction anchor is a full-length anchor, active reinforcement of the new rock bolt, the installation Immediately after the three-dimensional prestress imposed on the surrounding rock, blasting vibration, surrounding rock