Analysis of foundation sliding of an arch dam considering the hydromechanical behavior

查看全文 作　　者：Maria Luísa Braga [1]FARINHA;JoséVieira de [1]LEMOS;Emanuel MARANHA DAS [2]NEVES

机构地区：[1]LNEC-National Laboratory for Civil Engineering,Av.Brasil 101,Lisboa 1700-066,Portugal;[2]IST-Instituto Superior Técnico,Av.Rovisco Pais 1,Lisboa 1049-001,Portugal

出　　处：《Frontiers of Structural and Civil Engineering》索引2012年第6卷第1期,共9页

摘　　要：This paper presents the application of a methodology which can be used to assess arch dam foundation stability,using the discrete element method(DEM)and the code 3DEC.A global three-dimensional model of a dam foundation was developed,in which some discontinuities were simulated and both the grout and drainage curtains were represented.The model,calibrated taking into account recorded data,was used to carry out nonlinear mechanical analysis.The same model was employed to perform a hydraulic analysis,based on equivalent continuum concepts,which allowed the water pressure pattern within the foundation to be obtained.These water pressures were applied on discontinuities involved in the possible sliding mechanism along the dam/foundation interface,and the safety of the dam/foundation system was evaluated using a process of reduction of strength characteristics,with the aim of calculating the minimum safety factors that ensure stability.Results were compared with those obtained with the usual bi-linear uplift pressure distribution at the base of the dam,commonly used in concrete dam design.The relevance of carrying out hydraulic analysis in arch dam foundation failure studies is highlighted. 关键词：concrete dams rock foundations hydromechanical behavior failure analysis

相关文献

参考文献（9）
引证文献（4）
耦合文献（0）

参考文献(9)

引证文献(4)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Analysis of foundation sliding of an arch dam considering the hydromechanical behavior

参考文献(9)

引证文献(4)

用户提示