工作面

According as mechanism of rockburst and the state of coal seam in working face, this paper establishes numerical simulation model of rockburst.

本文主要从工作面冲击地压形成机理、工作面煤体受力状态出发建立了冲击地压数值计算模型。

Application of plough in thin coal seam face

根据马兰矿刨煤机工作面初采初放工作的特殊性，阐述了对工作面初采初放工艺的改进。

Thin and minddle thick coal seam face measurement and measurement of fully mechanized coal face are expounded.

薄及中厚煤层急倾斜回采工作面测量和综采工作面测量。

The paper introduced the tes of the gas drainage method for the heading face in seam with outburst potential.

介绍了突出煤层掘进工作面瓦斯抽放方法试验，考察得出了巷帮长钻孔，并利用工作面深孔爆破技术来增大煤层透气性，抽放卸压瓦斯效果较为理想，大大减少了突出危险性，安全提高了煤巷单进。

The coal seam of No. 5102 face in Wuyang coal mine is steep, soft, and undulate. Aiming at this problem, the displacement and stress of top coal, roof and floor were researched by using UDEC software.

针对五阳煤矿5102工作面倾角大、煤层松软、煤层起伏大、综放开采的条件，利用UDEC数值模拟软件分别通过沿工作面走向和倾向剖面建立模型，对顶板、底板的位移和应力变化进行了研究。

Intelligent control technology of large-scale equipments in comprehensive mechanized coal mining face (including the electric explosion-proof technique, control circuit design of essence safety type and double-engine double-speed dragging heavy load control technique of scraper conveyer); no exceeding limit gas safety and high efficiency emission technique (including air flow control strategy, control method, and etc.); failure protection technique for safe power supply of mine power grid (including two-grade selective electric leakage protection and phase sensitive protection technique, etc.).

关键技术分别为多局部通风机故障诊断和冗余控制技术（包括掘进工作面供电系统多源信息融合、故障测寻、故障诊断、多局部通风机三重冗余控制方法和控制策略等）；综采工作面大型设备的智能控制技术（包括电气防爆技术、本质安全型控制电路设计、刮板输送机双机双速拖动重载控制技术等）；瓦斯无超限安全高效排放技术（包括风量控制策略、控制方法等）；矿井电网安全供电的故障保护技术（包括两级选择性漏电保护和相敏保护技术等）。

On a coal face of horizontal slice of steep seam ,the combination of ∏ type built-up roof beam and individual hydraulic support is regarded as key support.

在急倾斜煤层水平分层采煤工作面，采用∏型组合顶梁与单体液压支柱结合作为基本支护，大大增加了工作面的支护强度，提高了劳动生产率，降低了工作面管理难度和材料成本。

Rock burst was easily happened at chain pillars between hydraulic mining face and drying mining face.

在水采工作面和旱采工作面交接的护巷煤柱处，极易发生冲击矿压事故。

Firstly, The simulation of Craftwork Process of Fully Mechanized Coalface is studied in the thesis and then analyses Craftwork Process of Fully Mechanized Coalface by using the Object-Oriented method.

本论文首先采用虚拟现实技术对综采工作面工艺过程进行仿真研究，然后利用面向对象的方法分析综采工作面的工艺过程；使用MultiGen Vega 和Vc 等软件，采用软件工程的方法开发仿真系统；解决了利用MultiGen、Vega 和Vc 进行建模和仿真驱动过程中的一系列关键技术问题，如碰撞检测，数据库技术，中文显示，运动模型，场景优化等。最后构建综采工作面虚拟现实系统，在主要场景实现中对所提出的关键技术做了实际的应用，从而验证了关键技术的有效性。

Take the 51201 big mining height coalface in Shangwan coal mine and the 32201 coalface in Bulianta coal mine as prototypes, the development processes of the overlying strata for these two types shallow coal face with big mining height are simulate, as the mining space increase.

分别以上湾煤矿的51201工作面和补连塔32201工作面为原型，模拟了随开采空间变化，这两类浅埋煤层大采高长壁工作面的采动覆岩导水通道的发育过程。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。