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1)  inclined medium-thickness coal seam
中厚倾斜煤层
1.
Numerical simulation on the residual coal second mining of inclined medium-thickness coal seam;
中厚倾斜煤层残留煤的复采数值模拟
2)  steep medium-thick seam
急倾斜中厚煤层
1.
The mining method with longwall,strike and back, and management methods after mining in steep medium-thick seam are introduced,including using hydraulic prop,using three kinds of protecting mthods,and keeping rock wall beforehand,which is applied in retaining roadvays along goaf after mining.
介绍了急倾斜中厚煤层走向长壁后退式采煤方法及采后管理的具体方法、方案及措施,即急倾斜中厚煤层采用单体支护,设好三防措施,在施工顺槽巷道时,提前预留石墙,做为采面回采后沿空留巷使用。
3)  slope and middle thick coal seam
倾斜中厚煤层
1.
By analyzing the economic indicators and supports performance of ZH1800/2000/ 2800FA type suspended support in the useful process in the slope and middle thick coal seam,the applicable conditions of this kind of support,and the existing problems in use were analyzed.
ZH1800/2000/2800FA型悬移支架在倾斜中厚煤层中应用。
4)  steep medium-thickness and high seam
急倾斜中厚-厚煤层
1.
Based on the application of artificial neural networks method, it sets up the artificial neural networks model for the evaluation on the degree of difficulty of top coal caving of roadway caving method in steep medium-thickness and high seam The model is made use of forecasting the technical-economic indexes of coal face and optimizing the technological parameters of roadway caving metho
应用人工神经网络方法,建立了急倾斜中厚-厚煤层巷道放顶煤开采可放性评价的人工神经网络模型。
5)  slope thick seam
倾斜厚煤层
1.
Talking about the roof management at slope thick seam blast mining surface;
浅谈倾斜厚煤层炮采工作面的顶板管理
6)  steeply inclined and extremely thick coal seam
急倾斜特厚煤层
1.
Frequent and violent underground pressure behavior and dynamic disaster made roadways deform and damage instantaneously in full-mechanized caving mining face with horizontal sections in steeply inclined and extremely thick coal seam.
针对急倾斜特厚煤层水平分段综放工作面回采巷道频繁出现强烈矿压显现和动力灾害造成巷道瞬间变形破坏现象,通过现场测试和理论分析研究动力灾害发生机理,采取综合防治措施,很好地解决了动力灾害问题,促进了矿井安全生产。
补充资料:3300mm中厚板轧机(上海第三钢铁厂)


3300mm中厚板轧机(上海第三钢铁厂)


3300mm中厚板轧机(上海第三钢铁厂)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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