1·The deformation of mining roadway which caused by the mining is produced mainly by the abutment pressure.
在回采引起的巷道变形中,回采引起的支承压力是主要因素。
2·The result shows that there are two stress peaks in the abutment pressure and its magnitude and location are affected by the mining.
得出了超前支承压力存在两个峰值,其峰值大小、位置受煤层采动影响的变化规律。
3·On the basis of model's results, effects in top-coal smash, and changes of peak value of abutment pressure within mining range are analyzed.
根据模拟结果,分析了开采范围内支承压力峰值的变化及对顶煤破碎的影响。
4·Ranges of fractured strata and high stress distribution of abutment pressure are all depend on the degree of mining disturbance on stope strata.
采动围岩破裂范围和支承压力高应力分布范围取决于开采对岩层的扰动程度。
5·Accordingly, the distribution of abutment pressure on the block coal pillar is measured at working face with a steeply inclined seam of the12010 face, NO.
据此原理,实测得到了平煤集团十三矿12010大倾角综放开采工作面走向支承压力和区段煤柱侧向支承压力分布。
6·The result indicated That the abutment pressure distribution form was similar to that of slicing mining method but its magnitude and affecting range changed.
结果表明,放顶煤采煤法其支承压力分布形式与分层开采法类似,但在量值及影响范围上有增减。
7·Based on in situ measurement with sub-level caving mining, the characteristics of top-coal deformation and top-coal deformation vs abutment pressure are mainly discussed.
以放顶煤开采现场实测为基础,着重探讨了顶煤的变形特征、顶煤变形与支承压力的关系;
8·Based on field measurement, the authors describe zone of influence of abutment pressure, rules of its change, loosening of the surrounding rock and the stability of roadways.
本文以现场量测为依据,论述了岩石巷道的锚喷支护受采动影响时,移动支承压力的影响范围、变化规律、围岩松动以及巷道稳定性等。
9·The high abutment pressure on the integrated coal beside the roadway is one of the reasons to lead to floor heave and affect the stability of the roadway driving along next goaf.
实体煤帮的高支承压力是影响沿空掘巷稳定性的主要原因之一。
10·The lag distance of abutment pressure behind working face increases, but the convergence coefficient of vertical stress doesn't change obviously with the increase of mining height.
分层开采与综放开采工作面滞后支承压力变化规律是,随着采高的增大,工作面滞后支承力的距离加大,垂直应力集中系数差别不大。