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以张集矿6煤层上提开采上限首个大跨度复合顶板切眼的地质技术条件为背景,介绍了张集矿17116上提工作面切眼锚索网支护设计及应用情况,实践表明,风氧化带内复合顶板大跨度切眼采用锚索网与单体液压支柱挑棚联合支护,不仅能及时加固围岩,提高围岩的强度和承载能力,而且还能显著提高切眼支护效果,实现综采设备的快速安全安装。
Based on the geotechnical conditions of the first large-span composite roof cutting with the upper mining upper limit on the 6th coal seam in Zhangji Coal Mine, the design and application of the cut-and-eye anchor-net support for the 17116 upper working face in Zhangji Mine are introduced. Practice shows that, The long-span cut of compound roof in wind oxidation zone is supported by the combination of anchor cable and single hydraulic props, which not only can reinforce the surrounding rock in time and improve the strength and bearing capacity of surrounding rock, but also can significantly improve cut-eye support Effect, to achieve fast and safe installation of fully mechanized mining equipment.