深部厚煤层长壁高水充填工作面矿压显现规律  

Strata Behavior Law of Long-wall Face Filling with High Water Material in Deep Mining

作　　者：王东 张婧[2] 王波[3] 刘长武[4] 

机构地区：[1]四川省交通运输厅公路规划勘察设计研究院,四川成都610041 [2]西华大学能源与环境学院,四川成都610039 [3]兖州煤业股份有限公司,山东邹城273500 [4]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《煤矿安全》2015年第7期215-218,共4页Safety in Coal Mines

基　　金：国家重点基础研究发展计划(973计划)资助项目(2010CB226802);国家自然科学基金煤炭联合基金重点资助项目(51134018)

摘　　要：通过研究深部厚煤层长壁高水充填1126工作面双节式液压支架顶梁对顶板的重复支撑作用,发现高水材料充填开采工作面矿压显现规律有以下特点:改变了采空区围岩的受力环境,引起直接顶岩层和基本顶岩层厚度的改变;工作面直接顶岩层的稳定性等级下降,从4类非常稳定顶板,变成介于1类不稳定顶板和2类中等稳定顶板之间的顶板;基本顶岩层从3级来压强烈顶板转变为1级来压不明显的顶板。Through the analysis of the effect of repeated support from hydraulic support（ double sections） upper beam at longwall high filling water of 1126 working face on the roof strata. Research of the strata behavior law of the high water material filling method shows that the thickness of the immediate and main roof strata will change due to the alteration of the rock stress in the mined- out area; the stability classification of the immediate roof strata drops from the level four down to the middle place between level one and level two;the rock pressure of the basic roof strata transformed from level there to level one.

关 键 词：深部开采 高水材料 充填开采 矿压显现 顶板岩层 

分 类 号：TD322[矿业工程—矿井建设]