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
史秀志;曾志林;田建军;董凯程;
SHI Xiu-zhi,ZENG Zhi-lin,TIAN Jian-jun,DONG Kai-cheng(School of Resource and Safty Engineering,Central South University,Changsha 410083,China)
摘要(Abstract):
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 of 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(KeyWords):
数值模拟;深井开采;爆破振动;ANSYS/LS-DYNA
Numerical simulation;Deep mining;Blasting vibration;ANSYS/LS-DYNA
基金项目(Foundation):
作者(Authors):
史秀志;曾志林;田建军;董凯程;
SHI Xiu-zhi,ZENG Zhi-lin,TIAN Jian-jun,DONG Kai-cheng(School of Resource and Safty Engineering,Central South University,Changsha 410083,China)
参考文献(References):
- [1]田建军.深井开采爆破振动危害研究(中南大学硕士学位论文)[D].长沙:中南大学,2009.
- [2]尚晓江,苏建宁,王化锋,等.ANSYS/LS-DYNA动力分析方法与工程实例[M].北京:中国水利水电出版社,2006.
- [3]史秀志,田建军,曾志林,等.冬瓜山爆破对岩层稳定性影响技术研究阶段技术报告[R].长沙:中南大学,2008.
- [4]李翼祺,马素贞.爆炸力学[M].北京:科学出版社,1992.
- [5]章冠人,陈大年.凝聚炸药起爆动力学[M].北京:国防工业出版社,1991.
- [6]李小军,陈智刚,陈秀文,等.多层介质中装药起爆位置对爆炸能量传递影响的数值模拟[J].工程爆破,2007,13(1):20-23.
- [7]LS-DYNA Keyword User’s Manual(Version 960)[R].Liveermore Software Technology Corporation,Live-more.2001.
- [8]穆朝民,王光勇.爆炸冲击波绕过墙体的数值模拟研究[J].工程爆破,2008,14(2):16-19.
- 史秀志
- 曾志林
- 田建军
- 董凯程
SHI Xiu-zhi- ZENG Zhi-lin
- TIAN Jian-jun
- DONG Kai-cheng(School of Resource and Safty Engineering
- Central South University
- Changsha 410083
- China)
- 史秀志
- 曾志林
- 田建军
- 董凯程
SHI Xiu-zhi- ZENG Zhi-lin
- TIAN Jian-jun
- DONG Kai-cheng(School of Resource and Safty Engineering
- Central South University
- Changsha 410083
- China)