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Through the transformation of tailings device of the scraper conveyor behind light caving face,this paper studied tailings mining technology,and achieved good results. 通过对轻放工作面后部刮板输送机进行尾煤装置改造,进行尾煤回收工艺研究,取得良好效果。
Discussion on approach of gas at upper corner of light caving face 浅谈轻放工作面上隅角瓦斯的处理
light caving face 轻放工作面
By improving the fully mechanized light caving technology,carrying out in the 1426D working face light caving practice,achieving the goal of safe production. 通过改进综采轻放工艺,在1426D工作面进行综采轻放开采实践,实现了安全生产目标。
The II3123 face is a light type caving face of three-soft coal seam.the roof is cracked,sloughing and roof fall often occur. 石台煤矿II3123工作面为"三软"煤层轻放工作面,顶板破碎易掉,片帮、冒顶时常发生。
Practices have proved that quick advancing techniqe is applicable in isolated unmined area Comprehensive top coal caving face. 实践证明,孤岛综放工作面快速推进技术是可行的。
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。
This technique has been used successfully in the air-return gate oJ" 1310 fully mechanized roof coal caving face in Zhangcun Coal Mine. 该项研究在漳村1310综放面回风巷的工程实践中得到了成功应用和检验。
Entry bolt supporting in light top-coal caving face 轻型放顶煤工作面回采巷道锚杆支护技术研究
The adaptability of equipments,especially powered supports in full-mechanized caving face in Wanbei minefield is analyzed from a typical working face accident. 从皖北矿区一次典型工作面事故出发,分析了皖北矿区综采工作面设备尤其是液压支架适应性存在的问题。
The adaptability of equipments, especially powered supports in full-mechanized caving face in Wanbei minefield is analyzed from a typical working face accident. 摘要从皖北矿区一次典型工作面事故出发，分析了皖北矿区综采工作面设备尤其是液压支架适应性存在的问题。
In early application of fully mechanized top coal mining,Spontaneous fire took place when the backout of fully mechanized top coal caving face was stopped mining. 在应用综放开采的初期,每当综放工作面停采回撤时,就会发生自燃发火。
Kang T H, Jin Z M.Laws of Coal-Rock Movement and the Technical Parameters on the Fully Mechanized Sub-Level Caving Face of the Gently Inclined Seam [J]. the Ming Engineer, 1995. 康天合;宋选民.;煤层条件对顶煤可放性的影响研究[J]
The coal seam of fully mechanized top-coal caving face 1151(3) in Xieqiao coal mine of Huainan mining area is soft and loose,and is of low permeability and poor wetting condition. 基于淮南矿区谢桥煤矿1151(3)综放面,煤层松软、渗透性低、湿润性差的特殊条件,采用煤层注水工艺技术降尘,在注水孔布置方式及参数、注水孔封孔工艺、注水工艺等方面采取一定的技术措施。
I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
Technical Discuss of Light Caving Working Face through the Upper Vacant Roadway 轻放工作面通过上层空巷的工艺探讨
The top coal's recovery ratio in fully-mechanized sublevel caving face controls the stowing degree of the goaf, thereby influences the stability of hard and massive overlying roof. 摘要综放采场顶煤放出率控制着采空区的充填状况，从而影响着大厚度坚硬顶板的稳定性。
According to the field investigation at Dayang coal mine, the paper describes behavior of ground pressure of longwall top coal caving face with soft surrounding rock and movement of overlying strata. 本文通过大雁二矿28%23层采面矿山压力的实测分析,论述了软岩矿井大采放比综放开采矿压显现特征和围岩活动规律。
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。
The portrait shows fine effects of light and shade. 这幅肖像画的浓淡色调表现得很好。