提出一种回采工作面过上山采空区原位留巷技术。
Technology on retaining roadway on original site in goaf after coal mining face crossing rise is put forward.
回采工作面下行通风在我国许多地方的不同条件下均有使用。
The stope downward ventilation technique has been used under different conditions in many places of our country.
深入探讨了复合煤层回采工作面“松动放炮”落煤的工艺问题。
This paper goes further into the blast-winning technology of the composite coal seam face.
回采工作面瓦斯超限现象经常发生，给煤矿安全生产带来重大隐患。
The phenomenon of gas exceeding the limit usually occurs in working face brings heavy hidden danger to the production safety in coalmines.
现设计南家咀煤矿年产0.743百万吨煤综采放顶煤回采工作面设计。
The design of South Tsui million tons of coal mines with an annual output of 0.743 fully mechanized top coal caving mining face design.
介绍了兖州矿区厚煤层开采回采工作面装备情况及生产管理方面的几点经验。
The paper states the equipment status in mining faces and experience of producing management in Yanzhou Coal mining area.
从守恒原理出发，导出了描述矿井回采工作面风流紊流流动和温度分布的微分方程。
According to the principle of conservation, differential equation which can describe airflow temperature distribution in state of turbulent flow in mine working face is deduced.
提出主关键层来压的新概念，指出回采工作面矿压显现程度主要受主关键层破断的影响。
The idea of key stratum pressure is put forward, and the ground pressure is mainly influenced by the breakage of key stratum.
提出主关键层来压的新概念，指出回采工作面矿压显现程度主要受主关键层破断的影响。
The idea of key stratum pressure is put forward, and the ground pressure is mainly influenced by the breakage of key.
回采工作面采空区漏风对于采空区遗煤自燃发火和采空区瓦斯分布及其涌出有重要的影响。
Air leakage from coal mining face to gob has great influence on gas distribution and emission as well as spontaneous combustion in waste.
针对复合煤层回采工作面煤炭生产过程中爆破参数的合理选取问题，进行了一系列现场试验。
To counter the reasonable selection of blast parameters in the process of coal production in a composite coal seam face, a series of on-the-spot tests were conducted.
由此得出，降段煤垛与移动抽放相结合的方法是高瓦斯矿井回采工作面瓦斯治理的有效方法。
We can conclude that the method that unites lower-sect coal stack method and mobile drainage method is an effective measure in the control of gas in the working face of high gas mine.
在我国华北煤矿区，回采工作面煤层底板突水问题相当严重，困扰着煤矿经济效益的正常发挥。
Water inrush from the bottom coal layer in mining work faced now is rather serious in Northern China coalfield, which constraints seriously the normal economical benefits.
在煤层三角形区域内布置回采工作面，利用工程数学，优化工作面设计，最大限度地回采煤炭。
Assign face scope at triangle coal seams, make use of engineering mathematics, optimize face designs to mine coals to the maximum.
通过对现场观测和数值模拟分析，系统研究了断裂结构面对回采工作面矿压分布和顶板稳定性的影响。
By using field observation and numerical simulation method, the influence of fracture structure plane on the underground pressure and the roof stability of working face are systematically studied.
针对曲江回采工作面温度高，顶板破碎等特征，采用“见四放一”方式管理顶板，取得了较好的成效。
The paper introduces a new way of roof management by analyzing the high temperature, fragile roof in the working surface in Qujiang which has obtained a better result.
富强煤矿在回采工作面推广使用单体支柱加长一次采全高回采工艺，取得了明显的经济和社会经济效益。
Fuqiang Coal Mine adopts mining full height actual process by adding the length of single prop once has made obvious economic and social benefit.
空场回采工作面利用采场上方的岩层支撑自身的重量，所以采场被切割成一系列的由矿壁分隔或用矿柱支撑的峒室。
In open stopes the ground above the stope will support its own weight. So the stope is shaped like a series of rooms divided by walls or supported by pillars of ore.
初步给出了局部冒顶监报指标的确定方法；重点探索了采用回采工作面来压综合判断指标来预报顶板来压的可能性。
The method of determining the index for predicting local roof fall has been given, the possibility of using a comprehensive index for roof weighting prediction has been discussed in detail.
以煤层上覆岩层组成、长壁回采工作面覆岩活动规律、煤层埋藏深度作为浅埋煤层开采界定指标，论证了指标合理取值。
The reasonable definitional feature of shallow coal seam is analyzed base on the overlying strata's composition, the activity law long-wall mining'soverlying layers and the depth of coal seam.
介绍了济宁二号矿复杂地质条件下综放工作面过断层技术，掘进和回采对断层的处理方法及回采工作面制定过断层方案的步骤。
The technology of crossing over fault, drifting and actual mining method and plan of crossing over fault at combined mining face under complex geology conditions in Jining no.
利用平面图形几何重心公式计算回采工作面水平投影图形的重心坐标，然后根据影响传播角和开采深度计算下沉盆地中心位置的坐标。
The barycentric coordinates of the plane view projection of a coal face are solved with a formula of geometric gravity centre.
在分析回采工作面支架底座作用在底板岩层上压力分布特征的基础上，选择正方体试件用钢质小圆柱加压实验的方法测定高水速凝材料容许比压。
Based on the analysis of distribution of pressure applied by hydraulic support base on seam floor, a method to test the allowable specific pressure of high water content material was suggested.
本文介绍了综采工作面回采超高时倾斜歪倒支架调整的方法及措施。
This paper introduces the methods and measures of the adjustment of support tilt caused by ultrahigh mining in fully mechanized coal face.
对碎裂顶板复采工作面布置、设备选型和回采工艺等进行了设计。
The repeated mining face layout, equipment selection and extraction technology with cataclastic roof had been designed.
介绍了中厚煤层回采工艺的具体施工方法和效果，同时介绍了工作面支护参数的计算。
The concrete construction methods and effects of mining technology in the middle thick coal seam are introduced.
工作面回采结束后，采用下行拆除的方法进行搬面。
After finishing the face mining, the down dismantling method is applied for face move.
工作面回采结束后，采用下行拆除的方法进行搬面。
After finishing the face mining, the down dismantling method is applied for face move.
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