论文部分内容阅读
我室研制成功的JC型普通水泥锚杆具有快凝、早强、低成本、锚固力大、取材容易等特点,适宜井下巷道支护,并能满足操作简便、坚固可靠、经济效益高等要求。不少矿井使用该锚杆都收到了良好的效果。本
The JC type ordinary cement anchor successfully developed in our laboratory has the characteristics of quick setting, early strength, low cost, large anchoring force and easy drawing. It is suitable for underground roadway support and can meet the requirements of simple operation, sturdy reliability and high economic efficiency. Many mine shafts have received good results. this