协同理念下岩金矿脉群连续回采顶板安全跨度研究
聂兴信,甘泉,高建,冯珊珊

Research on Safety Roof Span in Continuous Mining of Gold Vein Group Under Synergistic Concept
Xingxin NIE,Quan GAN,Jian GAO,Shanshan FENG
表1 岩石力学参数
Table 1 Rock mechanics parameters
岩体名称密度/(g·cm-3)弹性模量/GPa泊松比单轴抗拉强度/MPa黏聚力/MPa内摩擦角/(°)
晶屑凝灰岩(围岩)2.703.410.251.380.7527
蚀变凝灰岩(矿体)2.723.410.251.380.7527
充填体1.800.400.280.200.3025