煤矿立井四角罐道动力响应测试方法及结果分析
Measuring method and results analysis of four-corner tank channel's dynamic response of coal mine shaft
黄博华 1马香玲 1高路 1雒江超 1葛辉2
作者信息
- 1. 中煤西安设计工程有限责任公司,陕西 西安 710054
- 2. 西安建筑科技大学 土木工程学院,陕西 西安 710054
- 折叠
摘要
为探究煤矿立井四角罐道的力学特征,自主设计了一种适用于四角罐道的动力响应监测方法.通过增设加速度传感器与应变片及其动态测试系统,获取煤矿立井提升容器在多工况运行条件下,四角罐道结构所受水平位移时程数据信息.分析监测结果发现,停罐卸煤过程中四角罐道的水平位移随提升终端荷载的增大而增大;箕斗的下盘滑靴作用四角罐道时,引起的水平位移峰值为主井实测发生水平位移的峰值最大值位置;在静止工况下,四角罐道的水平位移峰值大于其在运行工况中的水平位移峰值;提升容器与四角罐道的相互作用力为低频冲击荷载.
Abstract
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.
关键词
煤矿立井/四角罐道/动力响应/应力应变/水平位移/终端荷载Key words
coal mine shaft/four-corner tank channel/dynamic response/stress-strain/horizontal displacement/terminal load引用本文复制引用
基金项目
中煤西安设计工程有限责任公司横向课题(XMSHT*JS-K-GDSL-00-21-017)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据