王封煤矿8号煤层煤柱变形破坏特征研究  

Study on the Deformation and Damage Characteristics of the Coal Pillars in Seam 8 of Wangfeng Coal Mine

作　　者：徐继光 王杨[2] 苗文山 宋敏[3] 朱涛[4] 

机构地区：[1]山东省济宁监狱,山东金乡272200 [2]济宁矿业集团安居煤矿,山东济宁272000 [3]山东水利职业学院建筑工程系,山东日照276826 [4]太原理工大学矿业工程学院,山西太原030024

出　　处：《科技情报开发与经济》2010年第3期180-181,190,共3页Sci-Tech Information Development & Economy

摘　　要：通过对王封煤矿8号煤层采用刀柱法开采后采空区内残留刀柱煤柱弹塑性变形区的分析、煤柱承受极限载荷和实际承受载荷的计算以及对煤柱应力分析的研究,得出该矿8号煤层的煤柱不能完全塑性屈服,在煤柱上会产生应力集中,使煤柱处于稳定状态。Through the analysis on the elastic-plastic deformation zone of wedge pillar residue in mined out space of seam 8 of Wangfeng Coal Mine with wedge pillar mining method,the calculation of ultimate load and actual load of these pillars and the stress analysis of the pillars,this paper draws the conclusion that the complete plastic yield can＇t occur in the pillars on seam 8 and stress concentration will occur in the pillars,making the pillars stable.

关 键 词：刀柱采煤法 残留刀柱煤柱 载荷计算 应力分析 

分 类 号：TD82[矿业工程—煤矿开采]