大断面交岔点支护及围岩变形控制模拟研究  

Numerical Simulation of Shoring on Large Span Intersection and Control of the Wall Rock Deformation

作　　者：金川[1] 孔德慧[2] 

机构地区：[1]淮南矿业集团,安徽淮南232001 [2]淮南矿业集团张集煤矿,安徽淮南232174

出　　处：《安徽理工大学学报（自然科学版）》2007年第1期9-12,共4页Journal of Anhui University of Science and Technology:Natural Science

摘　　要：应用数值计算技术对张集煤矿8煤层大断面交岔点巷道支护进行计算分析,获得该交岔点的支护参数为顶板每排6根锚杆、直径（ф）22 mm、排距0.7～0.8 m、长度2.0～2.2 m较为合理.交岔点临时支护应选迈步抬棚方式,单体支柱应有一定初撑力以控制顶板的早期离层,尤其适合复合顶板的控制.After calculating and analysing the large-section-intersection laneway shoring of Zhangji Coal Mine＇s 8th coal layer with the technology of numerical value calculates, the authors obtain optimal shoring parameters-6 rockbolts per arrange, whose diameter , range distance and length are respectively 22 mm, 0. 7-0. 8 m and 2.0-2.2 m. The authors finally put forward some reasonable measures in temporarily shoring on intersections.

关 键 词：交岔点 支护 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]