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淮北张庄矿采用锚杆护帮工艺,取得了显著效果.到1988年10月上旬,该矿有3100m断层带和沿边掘进巷道使用了锚杆护帮,节约维修费约25000元,劳动力1050个。该矿随着矿井不断延深,地质条件变得越来越复杂,特别是遇到断层带,由于受压力影响,棚子变形快,经常要停止掘进维修,不仅浪费了大量人力物力,还严重影响了生产接替。为此,该矿根据锚杆加固围岩的原理,在每架棚两帮柱子中间打两排木锚杆护帮,加固煤壁,减轻对支架的侧压力,达到稳定支架的目的.经使用,锚杆护帮有五大优
Zhangzhuang mine in Huaibei has adopted the technique of bolt support and help, and achieved remarkable results. By early October 1988, the mine had 3100m fault belt and bolting support for roadway along the roadway, saving maintenance cost of about 25,000 yuan and labor force of 1,050 . As the mine continues to deepen, geological conditions become more and more complex, especially in the case of fault zone, due to pressure, shed deformation quickly, often to stop digging maintenance, not only wasting a lot of manpower and resources, but also a serious impact The production of succession. For this reason, according to the principle of reinforcement of surrounding rock, the mine piles up two rows of wooden anchor guardings in the middle of two pillars of each shed to reinforce the coal wall and reduce the lateral pressure on the support to achieve the purpose of stabilizing the support. There are five advantages of bolt guard