工作面

The law of the mine pressure appearance is held by the mine pressure observation.

通过矿压观测掌握了该工作面矿压显现规律，为今后悬移支架在蔚州矿区推广探索出一条新路。

Based upon the test and observation in the mine, the pre-weakening acting mechanism and the rule of the pre-blasting and the injecting water are explained, and by analyzed, it is get out that the row holes can be well utilized the mining pressure, the rational way to set the holes and the rational main technique parameters of pre-weakening are worked out for Honghui mines. These offer the technique basis for practice application.

根据现场试验和观测，分析论述了综放工作面坚硬顶煤预先爆破和注水的弱化作用机理和规律，认为采用按排布孔能较充分地利用矿压破煤作用，并进一步总结得到了红会矿区坚硬特厚煤层综放开采顶煤预先爆破粉碎区、裂隙区和裂隙发育区的范围及合理的布孔方式及其主要工艺参数，为现场实际应用提供了良好的技术基础。

Guojiazhuang colliery using this method changed the strain condition in the working face need by carry the project in ground and underground. So it prolonges the collierys service time and assures the normal production. With it the colliery got social and economic profits.

国家庄煤矿通过在地面和井下实施封堵后，改变了煤矿工作面接续紧张的局面，提高了矿井的服务年限，保证了矿井的正常生产，取得了很好的社会和经济效益。

The result shows that the drainage of surface drilling well reduces the gas concentration of outtake air in working face to a great degree and the drainage effect is restricted by factors of coal seam and location of surface drilling well.

研究结果表明：地面钻井抽采将很大程度上减小工作面回风流的瓦斯含量，且抽采效果受到煤层条件和钻井位置的制约。

Mounting fans in series in closed adit and using two fans as air extractor and one fan for pressing air,the difficult problem of ventilation in long single entry was well-solved,the blasting smoke in working face were removed effectively and the density of dust lowered.

用密闭硐室串联风机，采用两抽一压混合式通风较好地解决了长距离独头巷道通风难题，有效地排除了工作面炮烟，降低了粉尘浓度，获得了满意的效果。

The hidden water-bearing bodies or water-bearing structures in working face are one of the main causes of the water disaster in working face.

工作面内隐伏的含水体或含水构造是突水事故发生的主要隐患之一。

The resistivity computerized tomography technique is of important theoretical and realistic significance because it can detect the water-bearing bodies in the floor of working face.

电阻率CT法探测技术能够对工作面底板含水体进行有效探测，因而具有重要的理论和现实意义。

When mine pit tunneling tunnel, breathes the fresh air for the supplies staff, the noxious gas which the dilution tunneling working surface's gas and produces, the mine dust, the creation good working condition, must carry on to the tunneling working surface ventilates.

在矿井掘进巷道时，为了供给工作人员呼吸新鲜空气，稀释掘进工作面的瓦斯及产生的有害气体，矿尘，创造良好工作条件，必须对掘进工作面进行通风。

When mine pit tunneling tunnel, breathes the fresh air for the supplies staff, the noxious gas which the dilution tunneling working surface's gas and produces, the mine dust, the creation good working condition, must carry on to the tunneling working surface ventilates.

以下为资料的部分内容，如需要全部资料请点击获取全文论文编号：JX469 有设计图，论文字数：16437，页数：61在矿井掘进巷道时，为了供给工作人员呼吸新鲜空气，稀释掘进工作面的瓦斯及产生的有害气体，矿尘，创造良好工作条件，必须对掘进工作面进行通风。

When mine pit tunneling tunnel,breathes the fresh air for the supplies staff,the noxious gas w你好ch the dilution tunneling working surface''s gas and produces,the mine dust,the creation good working condition,must carry on to the tunneling working surface ventilates.

论文编号：JX469有设计图，论文字数：16437，页数：61摘要在矿井掘进巷道时，为了供给工作人员呼吸新鲜空气，稀释掘进工作面的瓦斯及产生的有害气体，矿尘，创造良好工作条件，必须对掘进工作面举行透风。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。