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- fully mechanized caving ihce 轻放工作面
- A fast-withdraw technology and relative safety processes of fully mechanized caving face in steeply-inclined coal seam are introduced. 介绍了急倾斜特厚煤层综放工作面回撤工艺及相关安全技术措施。
- The application of elevated fully mechanized caving mining technology is an economical and efficient means for an old coal mine with an exploitation history of 38 years. 应用高位综放工艺回采煤柱资源对于已有38年开采历史的老矿来说是一种经济、高效的手段。
- By trial of fully mechanized caving in relatively thinner thick coal seam in Y.J.L.Coal Mine, the problems in mining are raised and the ways to increase its unit production are discussed. 通过对云驾岭矿较薄厚煤层综放的开采实践,提出了开采中存在的问题,并对如何提高综放工作面单产进行了探讨。
- The paper introduces the equipment selection,matching and fully mechanized caving technology for light-duty fully mechanized caving face,which achieves comparably good economic results. 本文介绍了义煤集团公司下属煤矿通过实践探讨出轻型综放工作面设备选型配套、综放开采等工艺,获得了较好的经济效果。
- During the drivage of main-gate in long-wall face with fully mechanized caving mining, the gate is hard to support due to its loose and broken roof, large cross-section and long span. 在综采放顶煤工作面顺槽掘进过程中,由于顺槽煤层顶板松动破碎,并且顺槽采用矩形断面,顶板跨距较大,不利于巷道支护。
- The fully mechanized caving coal mining under the railway in mine area will result in difficult maintenance of railway because of great deformation and subsidence speed of terrene and railway. 在矿区铁路下进行放顶煤开采所引起的地表及铁路的变形量大,变形速度快,从而导致矿区铁路维护困难。
- isolated island fully mechanized caving face 孤岛综放面
- elevated fully mechanized caving 高位综放
- fully mechanized caving and mining 综放
- fully mechanized caving coal face 综放工作面
- fully mechanized caving coal mining 综采放顶煤
- fully mechanized caving equipment 综放设备
- two roadways of fully mechanized caving face 综放面两巷
- mining roadway in fully mechanized caving face 综放回采巷道
- light-duty fully mechanized caving support 轻型综放支架
- Ways to Control Gas in a Fully Mechanized Caving Face 治理综放工作面瓦斯的途径
- fully mechanized caving face with large mining height 大采高综放工作面
- fully mechanized caving mining face with extra long mining length 大采长综放面
- Change law of foundation reverse force under fully mechanized caving condition 综放开采条件下地基反力的变化规律
