asdeasoft.net

Dear STKO team,

I trust this message finds you well.

I'm reaching out to seek guidance on conducting a pushover analysis for a soil-tunnel system utilizing the "reaction acceleration method," as depicted in the attached image labeled "Pushover_method.jpg."

At begain, the approach involves ...

Dear STKO,
I want to simulate the soil-tunnel system using PM4Sand model, and I develop two numerical models, i.e., a tunnel soil interaction model and a site response analysis model.

The soil tunnel system model is not convergenced during the static analysis when the soil is transfered into ...

Dear STKO,

Thanks for your reply.
It seems that a higher cohesion should be assigned for the zone, and I will try to do this. However, Is it applicable in modeling the sand, i.e., a higher cohesion is defined for the sand? Here, the C = 0.0008 represents that the cohesion is 0.8 kPa. Any ...

I try to simulate the seismic response using the Manzari Dafalias Material soil model. Could you give me some advices, and is there some example can be adopted as reference?

Best,

Jiaxing

Thanks for your reply, the posted model can be runned stability. However, the material stage remains elastic in the posted numerical model, i.e., the update stage should be assigned to material 3 but not 2. When I do this, the error raised again.

I have try to change the material model into PDMY 02, however, this error is not ellimated still. Can you give me some advice more?

Thanks for your reply.

I will try to do this.

Best regards,

Jiaxing

Dear STKO,

I am currently conducting a seismic analysis for a cut and cover tunnel that will be exposed to earthquake excitation. In order to simulate the sand material, I have employed the PDMY soil model and calibrated it using the recommended values. However, I have encountered an error during ...

Thanks for your reply!

Thanks for your reply.