辽宁工程技术大学学报（自然科学版）2011，Vol.30Issue(5)：693-696,4.DOI:CNKI:21-1379/N.20111023.1017.001
巨厚复合顶煤大断面煤巷支护参数优化
Damage mechanism and optimum support parameters for coal roadway with a large cross-section and thick combined top-coal
摘要
Abstract
To overcome the abnormal difficulty in roadway maintenance under the conditions of large cross-section and thick combined top-coal, this study analyzes the separation process of combined top-coal layers in a large cross-section coal roadway. It concludes that the destruction forms of roadway with thick composite top-coal are mainly separating and buckling. The deformation and movement of combined top-coal occur between each layer. Without roof support, the destruction process is mainly in three stages including slip, layer separation, falling and slipping down. Support parameters of a coal roadway with a large cross-section and thick combined top-coal are optimized using the methods of drillhole peep and FEPG software. A high intensity, high stiffness long anchor and anchor rope combined support is proposed in this study. The support results monitored show that the support system demonstrates an excellent safety characteristics and high reliability.关键词
巨厚复合顶煤/大断面/离层/钻孔窥视法/FEPG/参数优化/刚度/联合支护Key words
thick combined top-coal/ large cross-section/ separation layer/ drillhole peep method/ FEPG/ parameter optimization/ stiffness/ combined support分类
矿业与冶金引用本文复制引用
于永江,赵宇,郝云新,林木..巨厚复合顶煤大断面煤巷支护参数优化[J].辽宁工程技术大学学报（自然科学版）,2011,30(5):693-696,4.基金项目
国家自然科学基金资助项目(51174106 （）
50804020) （）
