https://communities.bentley.com/products/geotech-analysis/f/forum/243355/rainfall-analysis---saturation-and-poropressures---infiltration-in-dry-stack-tailingsWe are analyzing the saturation and pore pressures in a dry stockpile, where we want to simulate 15 rainy days and 15 dry days. We expected that during the rains a more saturated surface layer would form, and that this surface saturation would decreaseen-USTelligent Community 12https://communities.bentley.com/thread/759067?ContentTypeID=1Fri, 24 Mar 2023 19:40:34 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:c0bc3277-a9c9-44d3-9609-c46f3bba4d3dFaseel Khan<p>The infiltration rate is quite low and seems to balance out the saturation level during the 15 day rain period which is what we see in the first screenshot that the saturation level remains the same at about 80-85%%. Then the 15 day dry period seems to allow the water movement in the unsaturated zone in the upward direction towards the top of the slope because the infiltration boundary has been removed.&nbsp;<br />Sometimes comparing contours may not be the best approach as the colors can be difficult to interpret sometimes. A better approach would be to compare saturation levels at nodes/stress points to get a better idea.</p> <p>Without the model it would be difficult to know exactly what is going on. So to assist you further please submit a service request. Then, one of our support engineers can help you in detail: <a id="" href="https://apps.bentley.com/srmanager/ProductSupport">https://apps.bentley.com/srmanager/ProductSupport</a></p><div style="clear:both;"></div>