TY -的A2 -吴,浩盟——朱Daoyong盟——张Huyue盟——苏易PY - 2022 DA - 2022/07/28 TI - Gob-Side条目保留通过屋顶的应用研究切削条件下硬厚屋顶SP - 4773250六世- 2022 AB -解决问题的不稳定和失败在点评网煤矿巷道工作面条件下的传统保留Gob-Side条目,建立了力学模型进行分析。损坏的原因如下:(1)开采高度高,屋顶和硬厚老展品为旋转和沉降大空间;(2)保留道路包括一个大的部分;和(3)采矿影响强,和传统电缆的适应性很差。因此,技术提出了“roof-cutting类型gob-side条目保留”和原理进行了分析。下的位移场和应力场的数值仿真分析两个过程。结果表明,侧支承压力峰值下降从20.54到18.24 MPa由于屋顶减少(减少11%)。推进压力小于传统条件下的应力值。相比与传统的条件下,巷道的变形下降了超过50%。最后,进行了现场监测,结果表明,屋顶条件下的切割、变形与最严重的范围内30 - 80工作面。 After 80 m, the deformation gradually stabilized, and the maximum convergence between the roof and floor was 210 mm. Along the inclined direction, the stress of the hydraulic support in the middle part was the highest, the stress in the uncut side was second highest, and that in the roof-cutting side was the lowest. The periodic weighting interval on the roof-cutting side was the highest, and the transverse influence range of the roof cutting along the working face corresponded to 29.5 m. SN - 1468-8115 UR - https://doi.org/10.1155/2022/4773250 DO - 10.1155/2022/4773250 JF - Geofluids PB - Hindawi KW - ER -