非均匀型顶帮围岩巷道矿用工字钢支架支护  

Mine-used I-beam Frame Support for Roadways Surrounded by Non-uniform Roof and Coal Sides

作　　者：蔡健[1] 马玉良[1] 翟济 张志明[3] 张蕾[1] 刘红 

机构地区：[1]国家知识产权局专利局专利审查协作北京中心,北京100190 [2]北京科技大学土木与环境工程学院,北京100083 [3]北京航天勘察设计研究院有限公司,北京100070 [4]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《煤矿安全》2015年第11期216-218,222,共4页Safety in Coal Mines

摘　　要：针对非均匀应力作用下矿用工字钢支架支护困难煤巷围岩产生大变形的工程问题,将工字钢支架与巷道围岩间的非均匀支护进行分类;综合数值模拟和理论分析方法对2种类型下工字钢支架的顶梁和侧梁在非均匀受力作用下应力和位移变形特征进行研究,得出:一侧梁不加载时工字钢变形量和承受应力值远大于局部不加载类型;对困难煤巷中工字钢支架合理支护提出控制对策。Aiming at the engineering problem of large displacement for I-beam supported complex coal roadways suffering from factors non-uniform stress,the non-uniform types are classified according to the contact situations between the I-beam support system and the whole surrounding rock. Combined with the numerical simulation and theoretical analysis methods,the stress and displacement characteristics of roof and side beams for two non-uniform types are studied,and the results showed the deformation and suffering stress without loading of one of the side beams were larger than the other partly loading type. Besides,the control countermeasures to the proper I-beam support were proposed for complex underground coal roadways.

关 键 词：非均匀顶板 矿用工字钢 煤巷支护 数值模拟 巷道支护 

分 类 号：TD353[矿业工程—矿井建设]