摘要
以河林煤矿为研究背景,针对工作面具体生产实践情况,设计了18个观测站3个观测区。分析来压步距和来压峰值得出:1覆岩呈现凸状使工作面基本顶更容易破断和冒落;上覆岩层呈现凹状,在一定程度会减缓基本顶破断和冒落的阻碍作用;2由于沿工作面倾向受倾角变化的影响,致使工作面中部区域和上部区域液压支架所承受的载荷相比下部区域大。
Take Helin mine as the research object, we arranged eighteen observation stations and three observation areas according to the production practice condition of working face. The analysis of the pressure step distance and the pressure peak show：when the overlying strata are convex shape it will make it easier for the working face to break and cave;when the overlying strata are concave, it will slow down face, face. the breaking and caving process of basic roof. Due to the influence of inclination angle on the the load in the middle area and the upper part is larger than that of the lower part of the working
出处
《煤矿机械》
2016年第1期107-110,共4页
Coal Mine Machinery
基金
国家自然科学基金(51174109)
关键词
综放开采
煤层形状
矿压显现
来压特征
fully mechanized caving mining
coal seam shape
coal pressure appearance
pressure characteristics
