溪洛渡左岸谷肩堆积体滑带流变模型参数反演及长期变形分析  

Back Analysis of Rheological Parameters and Analysis of Long-term Deformation of Ancient Slipped Zone at Valley Shoulder at Left Bank of Xiluodu

作　　者：李东[1,2] 张强[1,2] 孟永东[3] 尤林[4] 

机构地区：[1]河海大学岩土工程科学研究所,南京210098 [2]河海大学岩土力学与堤坝工程教育部重点实验室,南京210098 [3]三峡大学湖北省水电工程施工与管理重点实验室,湖北宜昌443002 [4]中国水电顾问集团成都勘测设计研究院,成都610072

出　　处：《三峡大学学报（自然科学版）》2013年第5期10-15,共6页Journal of China Three Gorges University：Natural Sciences

基　　金：国家重点基础研究发展计划(973项目)(2011CB013504)

摘　　要：溪洛渡左岸谷肩堆积体在开挖加固后,浅部变形趋于稳定,深部变形持续增大,基于测斜仪监测数据分析变形持续增大的原因;应用PSO-BP网络和差分进化算法反演古滑带土流变模型参数;基于反演的参数进行堆积体长期变形分析,将FLAC3D数值分析流变计算结果和测斜孔监测数据对比,得出计算结果和监测数据较一致.For the slipped zone at calley shoulder at left band of Xiluodu, as it had been excavated and rein- forced, the deformation of the shallow sliding part tended to be stable, while the front （deep） part deformed continuously, on the basis of inclinometer monitoring data, the reason of deformation which creases continu- ously is analyzed; Application of PS（）-BP network and differential evolution algorithm the back analysis of rheological model parameters of the ancient slipped zone soil is carried out. The long-term deformation is cal- culated on the basis of inversion parameters. The results of rheological calculation by FLACaD are compared wi＊h the inclinometer monitoring data; it is shown that the numerical simulating results are in a good agree- ment with inclinometer data.

关 键 词：滑坡堆积体 测斜数据 参数反演 流变参数 

分 类 号：TD853.34[矿业工程—金属矿开采]