采煤工作面单体液压支柱阻力的探讨

Discussion on the Resistance of Single Hydraulic Prop in Coal Mining Face

通过对不同采场、不同支护形式、不同采煤开采方法的矿压观测,根据回采工艺不同环节状况下的顶板下沉速度、下沉量和动压影响范围的分析,讨论了在顶底板不同强度情况下,单体支柱阻力变化规律,以合理确定支柱阻力和支护密度,防止支柱钻底的出现。

By the coal mining pressure observation of different stope, different supporting forms and different mining methods, according to the analysis under the different links conditions of mining process such as roof sinking velocity, subsidence, and the influenced range of dynamic pressure, discusses the roof and floor case of different strength, the change rule of the single hydraulic prop resistance, reasonably determines the prop resistance and sup- porting density and prevent the appearance of the prop going into floor.