论文部分内容阅读
伪倾斜柔性掩护支架采煤法,是我国目前开采急倾斜煤层行之有效的采煤方法之一。掩护支架工作面由原来的沿煤层走向布置,沿倾斜方向推进,改为沿伪倾斜布置,沿走向方向连续推进,这是个重大的革新。在减少小眼掘进和维护工作量,减轻工作面工人攉煤劳动强度、加快回采速度和减少煤柱损失等方面,都显示了很大的优越性。但正是由于工作面改为沿伪倾斜布置,使掩护支架的移动轨迹产生了新的变化,为了使采煤工作与之相适应,我们必须了解回采过程中,不同下放阶段掩护支架的移动轨迹,针对它的特点,结合工作面的具体条件,才能合理地确定有关数据和采取相应的措施,使回采工作取得更好的效果。
Pseudo-tilt flexible shield support mining method is one of the most effective coal mining methods in our country for mining steep coal seam. Shield support face from the original layout along the coal seam, advancing in the direction of tilt, instead of pseudo-tilt layout, along the direction of continuous propulsion, which is a major innovation. They have shown great superiority in reducing the workload of digging and maintaining small eyes, reducing the labor intensity of workers in coal face work, accelerating the rate of coal mining and reducing the loss of coal pillars. However, it is precisely because the working face is changed to be arranged along the pseudo-tilt, so that the movement trajectory of the shielding bracket has undergone a new change. In order to adapt the coal mining work to it, we must understand the movement trajectory of the shielding bracket , According to its characteristics, combined with the specific conditions of the face, in order to reasonably determine the relevant data and take appropriate measures to make mining work to achieve better results.