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steep and close seam
相关语句
  急斜近距煤层
     Numerical Analysis on Combining Mining of Steep and Close Seam in Jiangou Coal Mine
     碱沟煤矿急斜近距煤层联合开采的数值分析
短句来源
     The scientific mining method of steep and close seam is always the difficult problem in Urumchi diggings.
     而急斜近距煤层科学的开采方法,则更是长期困扰乌鲁木齐矿区的开采难题。
短句来源
     Independent mining in steep and close seam can influence the next mining of the adjacent coal seam greatly, either mining from up to down or down to up.
     急斜近距煤层独立开采时,无论采取上行开采还是下行开采均会对邻近煤层的再次开采产生了较大的影响。
短句来源
  相似匹配句对
     (2)transgression at steep slope;
     (2)陡坡湖进;
短句来源
     3. Steep slope gradient;
     3.地面坡度陡;
短句来源
     WAVE PROPAGATION AND TRANSFORMATION ON STEEP SLOPE
     波浪在陡坡上的传播变形
短句来源
     reclaining on steep slope and soil erosion;
     陡坡开垦与土壤流失;
短句来源
     Probing into Caving Method of Roadway in Steep Seam
     急倾斜煤层巷道放顶煤采煤法的探索
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The scientific of mining method on sublevel caving with light supports in the thinner of the steep close and thick seam in the Urumqi coal mine was discussed, the caving influence in the steep and close seam was avoided, the throughput and extraction ratio were improved, the standardization base of the ventilation system was formed, sublevel caving with hydraulic pressure support was used in order to ensure the working safety, adapt the destroying and the law of strata pressure appearance in surrounding...

The scientific of mining method on sublevel caving with light supports in the thinner of the steep close and thick seam in the Urumqi coal mine was discussed, the caving influence in the steep and close seam was avoided, the throughput and extraction ratio were improved, the standardization base of the ventilation system was formed, sublevel caving with hydraulic pressure support was used in order to ensure the working safety, adapt the destroying and the law of strata pressure appearance in surrounding rock after combining mining. The suggest were gave for extending of the combining mining and perfect producing system of working face .

论述了乌鲁木齐矿区创造较薄急斜近距厚煤层水平分段轻型支架放顶煤采煤方法的科学性.避免了急斜近距煤层开采形成的相互影响,提高了生产能力和采出率,形成了通风系统规范化的基础,采用液压支架放顶煤保证作业安全,适应了联合开采后围岩破坏和矿压显现特征.并提出了进一步扩大联合开采的范围,完善工作面生产体系的建议.

 
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