论文部分内容阅读
N2202运顺位于大兴煤矿北二采区西南侧,西侧为N2203工作面,已经回采完毕,N2202运顺与N2203运顺之间的保护煤柱为10-12米,在掘进过程中受到动压影响严重,两帮的位移量大,即影响掘进工作面的工程质量,又对工作面的安全存在一定的危险系数。为了能更好的控制工作面的两帮的位移,选用Φ28.6×4000mm的帮锚索以及特质的帮锚索托盘对工作面的两帮的进行有效,在一定程度上控制住了掘进工作面两帮的位移速度,保证了掘进工作面的快速掘进。
N2202 Yun Shun is located on the southwest side of North Second Mining District of Daxing Coal Mine with N2203 working face on the west side and has completed mining. The protective coal pillar between Yun-Shun N2202 and Yun-Shun N2202 is 10-12 meters and is subjected to dynamic pressure during excavation The impact is serious, and the displacement of the two gangs is large, that is, the quality of the works of the heading face is affected, and there is a certain danger coefficient to the safety of the working face. In order to better control the displacement of the two sides of the working face, the use of Φ28.6 × 4000mm to help the anchor cable and the characteristics of the help of the anchor tray on the face of the two gang effective, to some extent, controlled the driving work The displacement speed of the two sides of the surface ensures the fast heading of the heading face.