某水电站放空洞围岩粘弹性位移反分析
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摘要
依据"弹性—粘弹性"对应性原理,通过弹性数值正分析结果较方便地获得粘弹性反分析的等效弹性模量,用开尔文—伏尔特模型来近似模拟围岩的粘弹性参数,采用优化的方法分离出粘弹性参数,实例计算结果表明,应用该方法所获得的粘弹性模型的精度能够满足工程需要,反分析成果是可用的。
According to elastic and viscoelasticity corresponding principle,the equivalent elastic ratio of viscoelasticity analysis was obtained conveniently by elastic numeric analysis,the viscoelasticity parameters were simulated with Kelvin-Voigt model and viscoelasticity parameters were separated by optimized method.The practical example calculation result indicated that viscoelasticity model by the method can satisfy engineering need and the opposite analysis achievement was feasible.
According to elastic and viscoelasticity corresponding principle,the equivalent elastic ratio of viscoelasticity analysis was obtained conveniently by elastic numeric analysis,the viscoelasticity parameters were simulated with Kelvin-Voigt model and viscoelasticity parameters were separated by optimized method.The practical example calculation result indicated that viscoelasticity model by the method can satisfy engineering need and the opposite analysis achievement was feasible.
引文
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[4]杨林德,丰志良,朱合华,等.岩土工程问题的反演理论与工程实践[M].北京:科学出版社,1996.
[5]邓聚龙.灰色预测与决策[M].武汉:华中理工大学出版社,1988.
[2]杨志法,王思敬,冯紫良,等.岩土工程反分析原理及应用[M].北京:地震出版社,2002.
[3]杨林德,颜建平,王悦照,等.围岩变形的时效特征与预测的研究[J].岩石力学与工程学报,2005,24(2):212-216.
[4]杨林德,丰志良,朱合华,等.岩土工程问题的反演理论与工程实践[M].北京:科学出版社,1996.
[5]邓聚龙.灰色预测与决策[M].武汉:华中理工大学出版社,1988.
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