【摘要】 以大平煤矿为研究对象,采用室内大型三维模型试验的方法进行系统研究,得出大平煤矿在采煤过程中垮落步距、两带高度、最大离层发展高度,以及岩梁极限跨度等一系列参数,揭示了大平煤矿采煤过程中上覆岩层的运移规律和破坏机理。研究成果为太平煤矿的安全生产提供了较强的理论支持,也为类似工程提供了有益经验。更多还原

【Abstract】 In the paper,the author studies the overburden movement and damage mechanism caused by underground mining using the large threedimensional model experiment in DaPing coal mine.The author obtains the process step,two belt height,maximum separation,maximum height separation development,as well as a series of rock beam span limit parameters trough monitoring the model and the data in the mining process,and obtains the overburden migration law and damage mechanism by analyzing the above data.The conclusions provide a strong theoretical support on the production safety in DaPing coal mine,also provide a similar theory for the similar project.更多还原