2) proximity shell
临近层
4) close distance coal seams
近距离煤层
1.
Forecast Model of Spontaneous Combustion in Goaf of Close Distance Coal Seams;
近距离煤层采空区自然发火预测模型
2.
Taking the first coal face 13116 of the below 6# coal seam in Xieqiao Coal Mine as an example,the paper analyzes the regularity of strata behavior of fully mechanized working face,the law of overburden strata movement,the performance and adapt ability of hydraulic support through observing the pressure appearance in the course of the mining for close distance coal seams.
文章以谢桥煤矿近距离煤层下层煤13116首采工作面为例,通过对近距离煤层开采过程中,工作面及上下顺槽的矿压观测,分析了近距离下部煤层的矿压显现特征、顶板运移规律、液压支架的性能和对该煤层顶底板的适应性及控制效果。
3.
Under the condition of close distance coal seams ascending mining in Suncun coal mine,using RFPA numerical analysis software,we analyzed the stress environment of the upper coal seam.
采用RFPA数值分析软件,对孙村矿深部近距离煤层上行开采条件下,上位煤层回采巷道的应力环境进行了分析;结合覆岩导水裂隙带的观测结果,探讨了上位煤层回采巷道的稳定性,证明上行开采条件下上位二层煤的回采巷道稳定性较下行开采有较大的改善;同时研究了上位二层煤开切眼的合理位置,为保证上行卸压开采的成功提供了理论依据。
5) horizontal seam
近水平煤层
1.
Aimed at the existing characteristics of the horizontal seam under complicated geological conditions,the method of crosscut exposing coal of control layer,seam pre-pumping,driving while pumping,metal skeleton,depressurizing 5 emissions further complicated geological conditions near the level is pointed out.
针对复杂地质条件近水平煤层的赋存特点,提出了控制层位、煤层预抽、边掘边抽、金属骨架、排放卸压5步复杂地质条件近水平石门揭煤方法;该方法在祁南煤矿南大巷石门揭煤中得到了应用,并取得了良好的效果。
6) close-distance seams
近距离煤层
1.
The special strata in the faces at close-distance seams are concluded,the technical scheme and characteristics of new-type support equipment used under special geological conditions are introduced.
总结了近距离煤层开采工作面不同于一般煤层开采面的矿压特征,介绍了根据特殊地质条件开发新支护设备的技术思路及其结构特点。
补充资料：临近
1.靠近;接近。多指时间﹑地区。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条