Measuring method and results analysis of four-corner tank channel's dynamic response of coal mine shaft
In order to explore the mechanical characteristics of the four-corner tank channel,a dynamic response monitoring method suitable for the four-corner tank channel was independently designed.By adding acceleration sensor,strain gauge and its dynamic testing system,the time history data information of horizontal displacement on the four-corner tank channel structure of the mine shaft lifting container under multi-working conditions is obtained.Analysis of the monitoring results found that the horizontal displacement of the four-corner tank channel increases with the increase of the lifting terminal load during the process of stopping the tank and unloading coal;When the sliding shoe of the lower plate of the skip acts on the four-corner tank channel,the peak horizontal displacement is at the position where the actually measured maximum horizon-tal displacement peak occurs in the main well;In static conditions,the peak horizontal displacement of the four corner tank channel is greater than its peak horizontal displacement in operating conditions;The interaction force between the lifting con-tainer and the four corner tank channel is a low-frequency impact load.
coal mine shaftfour-corner tank channeldynamic responsestress-strainhorizontal displacementterminal load
国家科技期刊平台
NSTL
万方数据
维普
