不同支护高度作用下液压支架底座比压分布研究  

Research on Distribution of Specific Pressure of Hydraulic Support Base Under Different Support Heights

作　　者：李洋 LI Yang(Shenghouyuan Coal Industry Co.,Ltd.,Shuozhou,Shanxi 037001,China)

机构地区：[1]圣厚源煤业有限公司,山西朔州037001

出　　处：《自动化应用》2024年第16期165-167,共3页Automation Application

摘　　要：大采高全采技术是厚煤层的开采效率显著提升的关键途径之一。在该过程中,大采高液压支架扮演着至关重要的角色,可确保开采作业的安全与稳定。值得注意的是,液压支架在作业时,其支护高度的调整会直接影响底座承受的比压状况,进而影响整体开采作业的稳定性和效率。因此,合理调整液压支架的支护高度是实现高效、安全厚煤层开采的重要技术环节。采用有限元仿真的形式分析不同支护高度下的底座比压,结果表明,支护高度为最大工作高度时的底座比压最小,且在偏载载荷下的偏载效应最小,因此,应尽量使液压支架在最大支护高度下作业。One of the key ways to significantly improve the mining efficiency of thick coal seams is the high mining height full mining technology.In this process,the high mining height hydraulic support plays a crucial role in ensuring the safety and stability of mining operations.It is worth noting that the adjustment of the support height of hydraulic supports during operation will directly affect the pressure bearing capacity of the base,thereby affecting the stability and efficiency of the overall mining operation.Therefore,adjusting the support height of hydraulic supports reasonably is an important technical link to achieve efficient and safe thick coal seam mining.The finite element simulation was used to analyze the base pressure ratio at different support heights.The results showed that the base pressure ratio was the smallest when the support height was at the maximum working height,and the bias effect was the smallest under the bias load.Therefore,it is recommended to operate the hydraulic support at the maximum support height as much as possible.

关 键 词：液压支架 支护高度 底座 比压 偏载 

分 类 号：TD355[矿业工程—矿井建设]