... nonlinear finite element analysis earthquake In a remediated area of large spatial extent (Figure 3), the periodic boundary technique (Law and Lam 2001) offers an effective approach for conducting 3D analyses (i.e., symmetry allows the investigation of a representative remediated ‘cell’). Using...

...J. Kuwano; Y. Miyata; J. Koseki ABSTRACT: The 2011 Tohoku earthquake off the Pacific coast of Japan (M_w = 9.0) contained a huge source region of approximately 450 km by 200 km and caused extensive damage to various structures. Damage caused by the tsunami was tremendous and many lives...

... concept are given. 10 5 2008 13 1 2009 20 1 2009 © 2009 Thomas Telford Ltd 2009 Geosynthetics Geogrid Reinforced soil wall Fibre-mixed soil-cement Seismic design Earthquake As mentioned above, the GRSW-FSC has special features in a facing wall. Some researchers...

... of the damage to small earthfill dams that has taken place during earthquakes as well as heavy rainfall. The paper then describes a new technology using geosynthetic soil bags with extended tails stacked on the downstream slope to construct earthfill dams that are highly stable against earthquakes as well...

...M. Shinoda; K. Watanabe; K. Kojima; M. Tateyama; K. Horii ABSTRACT: The mid-Niigata prefecture earthquake in 2004 damaged a number of structures, including embankments, earth slopes and retaining walls. This paper describes a selected collapsed earth slope constructed in a valley eroded...

... the 1995 Hyogoken-Nambu earthquake, the effectiveness of the simplified approach for assessing seismic displacement of GRS-FHR walls was verified. These results were also compared with those calculated for some geosynthetic-reinforced walls with modular block facing that have been reported in a companion...

...D. Choudhury; S. S. Nimbalkar; J. N. Mandal Determination of the external stability of reinforced soil walls under earthquake condition is an important topic of research for geotechnical engineers. In the present paper, a pseudo-dynamic method, which considers the effect of phase difference in both...

... 2007 © 2007 Thomas Telford Ltd 2007 Geosynthetics Seismic analysis Numerical modeling Finite difference Retaining walls Segmental face Bridge abutment Reinforcement Earthquake (1) E ( t ) = [ 1 – R f ( 1 – sin ⁡ ϕ ) ( σ 1 – σ 3...

...). It is shown that the values of k h cr can be expressed using linear functions of parameters representing the geometry and the reinforcement configuration of the wall. It is also shown that horizontal seismic displacement of GR-MBWs subjected to three recent major earthquakes, namely the 1994...

...S. S. Nimbalkar; D. Choudhury; J. N. Mandal Determination of the internal stability of reinforced soil walls under earthquake conditions is an important part of seismic design. The horizontal method of slices is used for determining internal stability or for tieback analysis of the reinforced soil...

... approximately 40% to 60% of the peak total horizontal earth load during base excitation, demonstrating that a stiff facing column plays an important role in resisting dynamic loads under simulated earthquake loading. Measured footing and reinforcement loads are compared with values predicted using current...

... indicator of post-earthquake serviceability, this paper describes the development and validation of a practical model for estimation of the permanent displacement of reinforced slopes subjected to earthquake loading. The ability of the model to reasonably predict yield acceleration and time histories...

..., Roseville, Minnesota 55113-4061, USA, Telephone: 1/612-222-2508, Telefax: 1/612-631-9334 1998 Shaking table test Sliding block analysis Earthquake Geotextile-Reinforced wall Geosynthetic Technical Paper by S. Ramakrishnan, M. Budhu and A. Britto LABORATORY SEISMIC TESTS ON GEOTEXTILE WRAP-FACED...

...J.D. Bray; E.M. Rathje; A.J. Augello; S.M. Merry This paper critically reviews seismic design practices in light of the observed performance of landfills during recent earthquakes. Developments in these areas are summarized as follows: earthquake ground motions, dynamic waste fill properties...

... railway track retaining walls under a Kobe, Japan earthquake record. The results are encouraging and suggest directions for further refinement of the numerical model. Finally, a linearization of the Coulomb-type nonlinear model is proposed: an approximate viscous-equivalent model is presented, which...