摘要
基于采场围岩顶板控制技术和实用矿山压力理论以及对大量采场矿压监测数据信息的分析,提出了反映巷道围岩顶板稳定参数(荷载和位移)坐标构建模式的新方法,运用采空区上覆岩层传递岩梁理论,分析探讨了应用综采支架压力监测曲线划分反映顶板机械物理性能的来压强度表征类型的理论研究和依据方法;结合顶板来压垮落现象探讨了顶板运动的蠕变来压规律及异常来压情况的发生,并以此建立了支架与顶板力学结构模型,进而分析研究了顶板正常来压蠕变发展规律和垮落区域及异常来压剧变和灾变区域的划分与形成原因,并以工程应用为例分析总结了该力学模型和来压区域的构建原理及对工程技术管理与发展的影响。
Based on the roof control technology of the surrounding rocks in the coal mining face,the practical mine pressure theory and the analysis on the large amount of the mine pressure monitored and measured data information,a new method of the coordinate structure model was provided to reflect the roof stability parameters of the gateway surrounding rocks（the load and the displacement）.The overburden strata fransmission rock beam theory in the goaf was applied to analyze and discuss the pressure monitoring and measuring curves of the hydraulic powered support applied to divide the pressurized characterization type theoretical study and the basis method which could reflect the roof mechanical and physical performances.In combination with the roof pressurized and falling phenomenon,the paper had a discussion on the creep pressurized law of the roof movement and the abnormal pressurized condition occurred and the mechanics structure model of the powered support and roof was established.The paper had a further analysis and study on the roof normal pressure creep development law and on the division and formation causes of the falling area,abnormal pressure serous variation and catastrophic area.With the project applications as the examples,the paper had a detail analysis and summarization on the mechanics model and the building principle of the pressurized area affected to the engineering technology management and development.
出处
《煤炭科学技术》
CAS
北大核心
2011年第8期14-18,共5页
Coal Science and Technology
基金
长江学者和创新团队发展计划资助项目(IRT0843)
关键词
压力曲线
来压区域
蠕变与异常
顶板类型
力学结构模型
pressure curve
pressurized region
creepand abnormal
roof type
mechanics structure model
