洪水工况下某尾矿坝动力稳定性分析
|
摘要
对四川某高堆尾矿库地质勘查资料进行整理,合理概化了坝体主轴剖面,采用等效黏弹性模型,对处于洪水工况下的该尾矿坝用GeoStudio有限元软件进行数值模拟研究,研究了该尾矿坝在EI Centro地震波作用下的反应加速度、位移变化、液化范围、安全系数、动力稳定性的规律,研究结果显示该尾矿坝可在洪水工况下稳定运行,为其他尾矿坝的动力稳定性分析提供参考。
This paper collates the geological exploration data of a high pile tailings pond located in sichuan,reasonably generalizes the main shaft section of the dam,adopts the equivalent viscoelastic model,and uses the GeoStudio,a finite element software,for numerical simulation for the tailings dam under flood conditions.In the simulation study,the law of acceleration reaction,displacements,range of liquefaction,safety factor and dynamic stability of the tailings dam under the action of EI Centro seismic wave was studied.The results show that the tailings dam can operate stably under flood conditions.The study provides reference for dynamic stability analysis of other tailings dams.
This paper collates the geological exploration data of a high pile tailings pond located in sichuan,reasonably generalizes the main shaft section of the dam,adopts the equivalent viscoelastic model,and uses the GeoStudio,a finite element software,for numerical simulation for the tailings dam under flood conditions.In the simulation study,the law of acceleration reaction,displacements,range of liquefaction,safety factor and dynamic stability of the tailings dam under the action of EI Centro seismic wave was studied.The results show that the tailings dam can operate stably under flood conditions.The study provides reference for dynamic stability analysis of other tailings dams.
引文
[1]郑欣,秦华礼,许开立.导致尾矿坝溃坝的因素分析[J].中国安全生产科学与技术,2008(1):51-54.
[2]金佳旭,梁力,陈天宇,等.基于液化流动模型的尾矿坝地震响应分析[J].地震工程与工程振动,2013,33(3):232-238.
[3]张力霆,齐清兰,李强,等.尾矿坝体溃决演进规律的模型试验研究[J].水利学报,2016,47(2):229-235.
[4]蒋成荣,刘浪,胡建华,等.尾矿库流固耦合的地震动力响应特性[J].矿业研究与开发,2015,35(9):85-90.
[5]康志强,韩强,王森,等.某拟建尾矿库坝体动力稳定性数值模拟研究[J].矿业研究与开发,2015,35(10):59-62.
[6]张力霆,路志南,李强,等.地震作用下某尾矿坝三维动力稳定性分析[J].金属矿山,2013(6):121-125.
[7]尹光志,魏作安,万玲.龙都尾矿库地下渗流场的数值模拟分析[J].岩土力学,2003,24(增刊2):25-28.
[2]金佳旭,梁力,陈天宇,等.基于液化流动模型的尾矿坝地震响应分析[J].地震工程与工程振动,2013,33(3):232-238.
[3]张力霆,齐清兰,李强,等.尾矿坝体溃决演进规律的模型试验研究[J].水利学报,2016,47(2):229-235.
[4]蒋成荣,刘浪,胡建华,等.尾矿库流固耦合的地震动力响应特性[J].矿业研究与开发,2015,35(9):85-90.
[5]康志强,韩强,王森,等.某拟建尾矿库坝体动力稳定性数值模拟研究[J].矿业研究与开发,2015,35(10):59-62.
[6]张力霆,路志南,李强,等.地震作用下某尾矿坝三维动力稳定性分析[J].金属矿山,2013(6):121-125.
[7]尹光志,魏作安,万玲.龙都尾矿库地下渗流场的数值模拟分析[J].岩土力学,2003,24(增刊2):25-28.