PLAXIS 2D - ANALYSE SPEED

HI 

1) AM NEW TO PLAXIS,  PLAXIS MODEL TAKES A 10 MINUTES AVERAGE TIME TO COMPLETE ANALYSIS, IS THERE ANY POSSIBILITES TO INCREASE SPEED OF ANALYSIS 

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I HAVE ATTACHED MY SCREENSHOT, PLEASE CLARIFY

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  • Mr. Arun,

    The reason for that triangle green colour mark will be some stresses exceed your strength parameters. Do you use clay layers with Su?

    You can see the stress points by looking plastic points plot and stresses.

    For example i provided Su = 15 kPa, so all the shear strength in the soil need to be less than or almost equal to 15 kPa. so eventhough the stress increases shear strength limit to 15kPa so after the relative shear stress takes the value 1 all points below become exceed the failure points. You can easily see this from plastic points.

    When i increase the Su=30, failure points further reduce as below.

    so you need check the stress and shear strength and need to change the soil parameters (clay layer strength properties increases along the depth so you can use cinc option).

     for water conditions, what is the purpose of the analysis, whether you are going to reduce the water level based on permeabilities or keep the water level as it is without reduction. Steay state ground flow automatically adjust the pore pressure distribution based on permeabilities.

    i hope i provide the correct answers, if wrong please tell me

    Thanks.

    Answer Verified By: Aiin8888 

Reply
  • Mr. Arun,

    The reason for that triangle green colour mark will be some stresses exceed your strength parameters. Do you use clay layers with Su?

    You can see the stress points by looking plastic points plot and stresses.

    For example i provided Su = 15 kPa, so all the shear strength in the soil need to be less than or almost equal to 15 kPa. so eventhough the stress increases shear strength limit to 15kPa so after the relative shear stress takes the value 1 all points below become exceed the failure points. You can easily see this from plastic points.

    When i increase the Su=30, failure points further reduce as below.

    so you need check the stress and shear strength and need to change the soil parameters (clay layer strength properties increases along the depth so you can use cinc option).

     for water conditions, what is the purpose of the analysis, whether you are going to reduce the water level based on permeabilities or keep the water level as it is without reduction. Steay state ground flow automatically adjust the pore pressure distribution based on permeabilities.

    i hope i provide the correct answers, if wrong please tell me

    Thanks.

    Answer Verified By: Aiin8888 

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