掘锚一体化巷道支护参数分析与工序优化

    Roadway Supporting Parameters Analysis and Process Optimization for Excavation and Bolting Integration

    • 摘要: 针对巷道掘进效率低的问题,以高河矿E1310工作面运输巷为工程背景,采用掘锚一体化技术来提高巷道掘进效率。通过FLAC3D数值模拟软件,模拟分析了不同支护参数条件下的围岩变形特征,从而确定了掘锚一体化施工中的巷道支护参数,并对掘锚一体化劳动组织和施工工序进行优化,提出了“三七一三”制的劳动组织方式,施工工序实现了最大化的平行作业。实测结果表明,采用掘锚一体化技术使每个班的掘进进尺可以超过4 m,日进尺12 m以上,单月进尺400 m左右,很大程度上提高了矿井巷道的掘进效率。

       

      Abstract: To solve the problem about low efficiency of roadway excavation, the paper takes conveyor roadway of E1310 working face in Gaohe Mine as engineering background, excavation and bolting integration technology is used to improve the efficiency of roadway excavation. The deformation characteristics of surrounding rock under different supporting parameters were simulated and analyzed by FLAC3D software, and the parameters of roadway supporting in the construction of excavation and bolting integration are determined. Then, this paper optimizes labor organization and operating sequence for excavation and bolting integration and proposes the labor organization of “three seven-hour shifts and one three-hour shift”, and the construction process achieves maximum parallel operation. The measured results show that advance per shift can be more than 4 m, advance per day can be more than 12 m, and advance per month can be about 400 m by using excavation and bolting integration technology, which increases the excavation efficiency to a great extent.

       

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