深井开采爆破对巷道影响的数值模拟分析  

NUMERICAL SIMULATION AND ANALYSIS OF INFLUENCE OF DEEP MINING BLASTING ON ROADWAY

作　　者：史秀志[1] 曾志林[1] 田建军[1] 董凯程[1] 

机构地区：[1]中南大学资源与安全工程学院,长沙410083

出　　处：《工程爆破》2010年第2期10-14,共5页Engineering Blasting

摘　　要：根据铜陵冬瓜山铜矿深井开采爆破现场工况和相似原则,运用ANSYS/LS-DYNA建立了爆破的相似实验模型。通过对模拟结果的分析,得到了爆破影响范围内巷道周围岩石的爆破振动速度和应力分布规律。模拟采用岩石动态抗拉强度破坏标准的结果与动态应力比法的结果相近,表明该模型具有一定的有效性和实用性。According to the actual condition of deep mining blasting of Tongling Donggua Hill Copper Mine and similarity law, a similar model of blasting experiment was built by using the software ANSYS/LS-DYNA. Blasting vibration velocity and stress distribution along the roadway within the scope of blasting were revealed through analysis of the simulation results. The results o{ using rock dynamic tensile strength destruction standard were similar to that of using dynamic stress ratio method indicated that the model has a certain validity and practicability.

关 键 词：数值模拟 深井开采 爆破振动 ANSYS/LS—DYNA 

分 类 号：TD262.11[矿业工程—矿井建设] TD235.47