1) thin seam
较薄煤层
1.
Practice on high efficient mining technology in thin seam;
较薄煤层高效开采技术的实践
2) thinner coal seam
较薄厚煤层
1.
Based on in-situ observation about stress in inclined coal pillar for fully-mechanized top-coal caving face of thinner coal seam and the elastoplastic limit equilibrium theoryt,aking the thickness and angle of coal seam into account,the results and relations are analyzed systematically and completely;and the formula and the distribution laws of stress peak value are obtained.
在较薄厚煤层综放面倾向煤柱支承压力现场实测的基础上,应用弹塑性极限平衡理论,考虑煤层厚度及倾角的影响,分析得出综放面倾向煤柱支承压力峰值位置的计算式及分布规律。
3) relatively thinner thick coal seam
较薄厚煤层
1.
Practices and experiences on fully mechanized caving tech. in relatively thinner thick coal seam;
较薄厚煤层综放实践与认识
2.
The practices and experiences on mining by the light supported fully mechanized caving method and the technical problems encountered in mining in the relatively thinner thick coal seam(i.
介绍陶二煤矿较薄厚煤层 ( 3。
4) shallow thinner seam
浅埋较薄煤层
1.
71301 in Shi Getai coal mine, Shendong mining area, this paper resorted to methods of measurement on the spot, theoretical analysis, numerical simulation and similarity material simulation to research the overlying strata movement law during shallow thinner seam mining.
本文以神东矿区石圪台煤矿71301较薄煤层综采工作面为依托,采用现场实测、理论分析、数值模拟、相似材料模拟方法对浅埋较薄煤层开采覆岩运动规律进行了研究。
6) thin and thick seam with steep dip
急倾斜较薄厚煤层
1.
The paper study thin and thick seam with steep dip mining technique of 7417 fully mechanized top-coal caving face,in Zhangshuanglou coal mine,introduce to coal mining method and equipment anti-skid successful experience,provide reliable use for reference mining of resemble face.
通过对张双楼煤矿7417综采放顶煤工作面急倾斜较薄厚煤层开采技术的综合治理研究,系统的介绍了采煤方法、设备防倒防滑的成功经验,可供相似复杂条件下综放面的安全开采借鉴。
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