大采高液压支架支护稳定性分析

Analysis of the Stability of the Support in the Large Mining and High Hydraulic Support

通过对大采高工作面在发生断裂的最恶劣工况下液压支架立柱所受冲击的分析,分别对两柱掩护式液压支架和四柱支撑掩护式液压支架支架在不同相同工况下的支护稳定性和受力情况进行了对比验证,结果表明,在大采高工作面采用两柱掩护式液压支架,不但可以满足大采高支护要求而且经济,效率优于四柱支撑掩护式液压支架。

Based on the analysis of the impact of hydraulic support column under the worst fracture condition in large mining height working face,The support stability and force of two column shield hydraulic support and four column support cover hydraulic support under different working conditions are compared and verified respectively.The results show that the two-column masking hydraulic support can not only meet the requirements of large mining height support,but also the economic efficiency is better than the four-column support hydraulic support in large mining height working face.