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地下硐室围岩变形监测及突发失稳时间预测
Deformation Monitoring and Prediction of Unstable Time Around Large Cave
【摘要】 以隔河岩电站201夹层置换硐现场测试数据为基础,从位移时序曲线的特征出发,提出并验证用加速度作为状态稳定识别判据的可行性。对于稳定情况,讨论了用灰色系统Gm(1,1)模型预测最终收敛位移;对于失稳的情况,探讨了用“黄金分割法”预测失稳时间。
【Abstract】 In this paper,according to monitoring date of Ge heyan hydrculic Power station No.201 layer replacement and features displacement time curves the possibility to use acceleration as a factor of state identification is suggested and testified .In the stable cases, the prediction of the ultimate convergence displacements by means GM(1,1) model of grey system is discussed.In the unstable circumstances, Golden section is used to porecasting unstable time.
【关键词】 夹层置换;
灰色系统;
稳定位移预测;
黄金分割法;
失稳时间预报;
【Key words】 grey system; prediction of stable displacement; golden section; forecast of unstable time;
【Key words】 grey system; prediction of stable displacement; golden section; forecast of unstable time;
- 【文献出处】 武汉工业大学学报 ,JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY , 编辑部邮箱 ,1998年02期
- 【分类号】TD354,
- 【被引频次】10
- 【下载频次】110