actual mining

Study on the distributing rule of gas emission in working face;

回采工作面瓦斯涌出分布规律的研究

Evolvement rules of the roof control and crack field in working face;

顶板防治与回采工作面裂隙场演化规律

Different-source gas emission prediction model of working face based on BP artificial neural network and its application;

回采工作面瓦斯涌出BP神经网络分源预测模型及应用

In order to resolve the difficult problem to calculate the temperature of rock surrounding coal face andheat transfer between air and wall rock,the authors analyzed the heat conduction differential equation in movingcoordinate,resolved the equation by finite element method,set up the computer program with FORTRAN languageand calculated a actual coal face.

针对回采工作面围岩温度场和围岩散热难以计算的问题，研究了动坐标下的导热微分方程以及该方程的有限单元求解方法和计算式；以FORTRAN语言编制了计算程序并进行了实例计算。

According to the characteristic of moving boundary of coal face , the authors set up the heat conduction differential equation and studied the dimensionless form of the equation.

根据回采工作面移动边界的特点，建立了动坐标下的围岩导热微分方程，研究了该方程的无因次形式；在大量计算结果的基础上，分析了煤岩平均热物理参数的计算式；给出了回采工作面围岩不稳定换热准数随各无因次参数的变化曲线和不稳定换热系数的计算式。

Research on application of downward ventilation to coal mining face in horizontal seam with coal outburst in potential;

近水平突出煤层回采工作面下行通风应用研究

Gas drainage trial in coal mining face of Pinghu Mine;

坪湖矿回采工作面瓦斯抽放试验

Technology on retaining roadway on original site in goaf after coal mining face crossing rise is put forward.

提出一种回采工作面过上山采空区原位留巷技术 。

Accident reason and prevention of the partial foof falling at actual mining face;

回采工作面局部冒顶的原因及防治

Study on the length of the actual mining face in Huainan mine area;

淮南矿区回采工作面长度的探讨

Approach on the selection of the reasonable length of the actual mining face;

回采工作面合理长度的选择探讨

Selecting the sealing position for stope face after mining;

回采工作面采后密闭位置的选择

square set stope

方框支护回采工作面

Study on Technology of Gas Draining While Mining in Working-face;

回采工作面边采边抽瓦斯抽放技术研究

Study of Migration Laws and Deal in the Coal Mining Face Goaf

回采工作面采空区瓦斯运移规律及处理研究

Technology Practice on Eliminating Gas Outburst at First Section of 11041 Stope Face Mining in Machi Coal Mine

马池煤矿11041回采工作面首采段消突技术实践

Application of System Optimization In the Working Face of Coal Extraction;

系统优化在回采工作面设计中的应用

Study on Rock Pressure of Donghai Coal Mine Deep Coal-seam Working Face

东海矿深部回采工作面矿压规律研究

Research and Implementation on Oblique Crossed Boreholes in Air Return Gateway of Coal Mining Face

回采工作面回风巷斜交钻孔的研究与实施

Mining all Height at One Time Technology of Large Mining High Angle Compound Mining Working Face

大采高大倾角综采工作面一次采全高回采工艺

Full-mechanized Mining Technology under Complex Geological Condition

复杂地质条件下综采工作面回采技术

Surrounding Rock Control Study of the Coal Entry with Greater Mining-Height;

大采高综采工作面回采巷道围岩控制技术研究

Increasing Rate of Coal Mining with Improving Coal Caving Technology at Fully Mechanized Face

改进综放工作面放煤工艺提高回采率

Adopting rotary worktable, workpieces fed and unloated by one operator.

采用回转工作台，上、下料由一人操作。

There are several techniques for working the face of the stope. Overhand stoping indicates working from a lower to an upper level; underhand stoping is the opposite, from an upper level to a lower level.

工作面回采技术有好几种。上向回采是指从下往上开采，下向回采则相反，从上往下开采。

Practice of using abandoned roadway as retracement channel in fully-mechanized face

利用空巷作为回撤通道的综采工作面回撤实践

Application of Sector Circul Excavate to the Change of Oblique in Integrated Excavated Working Face;

扇形回采在综采工作面斜长变化中的应用

Continuous mining technology through the large riser in the 12403 fully mechanized longwall mining face of Yun Jia-ling mine

云驾岭矿12403综采工作面跨上山连续回采技术

Practice on Mining Technology for Fully Mechanized Coal Mining Face in Steeply Dipping Coal Seam with Composite Roof

复合顶板大倾角综采工作面回采技术实践

longwall peak stoping

V形工作面向下梯段长壁回采法