Mining pressure behavior in the process of longwall panel face passing through the parallel abandoned roadways (PARs) is different from the ordinary longwall panel face. It is easy to induce the accident of roof falling, coal wall spalling, and crush accident of shield. In order to reduce the occurrence of mine pressure accidents and ensure safe mining, a new mining method named “swing-inclined” mining method was proposed and was employed in the E13103 of Cuijiazhai coal mine. Based on the process of the longwall panel face passing through the PARs, a long-span and multisupport mass-structure model of the roof was established. The maximum support capacity of shield was calculated combined with stability relation between “roof-shield-PAR-‘similar pillar (SP)’-coal wall.” It provided the basis for determining the reasonable support capacity of shield. Moreover, the sensitivity analysis of influenced factors to the maximum support capacity of shield was carried out by using Matlab software. The sensitivity analysis results indicated that different factors had a different effect on the support capacity of shield. And, the process of passing through the PARs can be divided into 3 stages, depending on the relation between support capacity of shield and width of SP. In different stages, the change degree of support capacity of shield was different. The support capacity of shield is mainly influenced by the hanging distance of the main roof and the horizontal distance between the support point of the coal wall and the breaking position of the main roof. By on-site measurement, the sensitivity analysis results were verified.

中文翻译：

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平行废弃巷道长壁板工作面开采新方法

长壁板工作面通过平行废弃巷道（PARs）过程中的采压行为与普通长壁板工作面不同。容易引发顶板脱落、煤壁剥落、盾构压碎等事故。为减少矿压事故的发生，确保安全开采，提出了一种新的开采方式——“摆斜”开采法，并在崔家寨煤矿E13103采用。基于长壁面板面穿过PAR的过程，建立了屋盖的大跨度多支撑质量结构模型。结合“顶盖-盾构-PAR-'类似支柱（SP）'-煤壁的稳定性关系计算盾构的最大承载能力。” 为确定盾构的合理支撑能力提供了依据。并利用Matlab软件对盾构最大承载力的影响因素进行敏感性分析。敏感性分析结果表明，不同因素对盾构承载力的影响不同。并且，通过PAR的过程可以分为3个阶段，这取决于盾构的支撑能力和SP宽度之间的关系。不同阶段盾构支撑能力的变化程度不同。盾构的支撑能力主要受主顶板悬垂距离和煤壁支撑点与主顶板断裂位置的水平距离的影响。通过现场测量，