https://communities.bentley.com/products/geotech-analysis/f/forum/186725/plaxis2d-max-stepHello, I&#39;m currently working with Plaxis2D V20, in particular with the &#39;PlaxFlow&#39; module, to perform a steady state seepage analysis for a tailings dam, without deformation analysis (Calculation type &#39;flow only&#39;). The dam has a low permeability clayen-USTelligent Community 12https://communities.bentley.com/thread/547931?ContentTypeID=1Thu, 10 Oct 2019 08:55:54 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:9630db1d-9b67-42cd-8d8c-e6dc6d26c6e4Micha van der Sloot<p>Dear Mauricio,</p> <p>Very high hydraulic conductivity ratios (&gt; 1E6) are usually very difficult to solve, especially when having large gradients in groundwater head. Sometimes it helps to refine the mesh in the area to have a better capture of the groundwater head gradients.</p> <p>If that does not solve it, can you please file a support request/service request? You can do this here: <a href="https://apps.bentley.com/srmanager/ProductSupport">https://apps.bentley.com/srmanager/ProductSupport&nbsp;</a></p> <p>Please include the project file. Use the Pack Project option from the File menu to compress your PLAXIS data with all the relevant information.</p> <p>Kind regards,&nbsp;</p> <p>Micha</p><div style="clear:both;"></div>