Long Term in Consolidation analysis

Question

Hi hello, can you help me with this case? 
 I want to analyze the long-term session, but the output said this, can you help to solve this issue? 
 thanks

Faseel Khan · Accepted Answer

In minimum excess pore pressure , we do not set a time interval, and we cannot activate/deactivate soil, structures and loads: these settings are kept the same as the previous stage while the calculation continues until the maximum (absolute) value of the excess pore pressure is below the specified value for the excess pore pressure, |P-stop| One of the results is then the time it needs to consolidate. 
 In a Degree of consolidation type of analysis, that you performed, the calculation is similar to the Minimum excess pore pressure calculation option, in which the Minimum excess pore pressure parameter (see above) is set to a value as defined by the maximum excess pore pressure in the previous phase (P max,previous phase ) and the defined Degree of consolidation ( U ): Minimum pore pressure = (100 &ndash; U)% * P max,previous phase The calculation should stop when the maximum absolute excess pore pressure is below this calculated value of Minimum excess pore pressure . So the error message [105] means that Prescribed minimum excess pore pressure in a consolidation analysis not reached which is probably due to a soil failure. Please inspect the input data and the calculation results in Output to evaluate why it fails.

Faseel Khan · Answer

Without the model it is difficult to check why soil in your model fails. Please create a service request from the following link and one of our support engineers will be able to assist you better in identifying the cause: https://apps.bentley.com/srmanager/ProductSupport

Dennis Waterman · Answer

Dear Celvin, 
 As the answer says above: you either have failure before the minimum pore pressures are reached, or alternatively you haven't specified enough load steps to reach the minimum pore pressure. Both you can easily check yourself. 
 With kind regards, 
 Dennis Waterman

Dennis Waterman · Answer

If the problem is failure you should improve your design, if the problem is not enough load steps you should specify more load steps.

Long Term in Consolidation analysis

Top Replies