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中文摘要: 应用有限差分软件FLAC3D建立南芬露天矿拦水土石坝的三维模型,对拦水坝的应力应变和渗流进行了数值模拟,并比较了水位最低和最高时的应力状态。模拟结果表明了坝体的弱应力区、主应力及位移大小值,可为选择不同的心墙来调整弱应力区,改善坝体的稳定性和安全性提供依据。结果还表明该方法可以较好地模拟拦水坝坝体内部渗流场和应力场的耦合作用,较好地评价拦水坝的安全效果,对于类似工程的防渗加固实践有一定的指导作用。
Abstract:A finite difference software (FLAC3D) is used to establish 3D model of Nanfen open pit mine, the stress-strain and seepage is simulated, and stress state of the minimum and maximum water lever is compared. Simulation results show the low stress area, the value of principal stress and displacement, by choosing different core wall to adjust the low stress area, which will provide evidence to improve the stability and safety of the dam. The result also showed the method can simulate the seepage and stress field in the coupling, can evaluate the safety effect of dam better, which will play a certain role in anti-seepage reinforcement of similar engineering.
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基金项目:
作者 | 单位 |
李有臣 | 1.北京科技大学土木与环境工程学院,北京100083;2. 本溪钢铁(集团)有限责任公司, 辽宁 本溪117000 |
董宪伟 | 北京科技大学土木与环境工程学院,北京100083 |
蔡嗣经 | 北京科技大学土木与环境工程学院,北京100083 |
引用文本:
李有臣,董宪伟,蔡嗣经.南芬露天矿拦水坝渗流与应力耦合分析[J].有色金属(矿山部分),2011,63(1):65-69.
LI Youchen,DONG Xianwei,CAI Sijing.Seepage and Stress Coupling Analysis in Nanfen Open Pit Mine Dam[J].NONFERROUS METALS(Mining Section),2011,63(1):65-69.
李有臣,董宪伟,蔡嗣经.南芬露天矿拦水坝渗流与应力耦合分析[J].有色金属(矿山部分),2011,63(1):65-69.
LI Youchen,DONG Xianwei,CAI Sijing.Seepage and Stress Coupling Analysis in Nanfen Open Pit Mine Dam[J].NONFERROUS METALS(Mining Section),2011,63(1):65-69.