I am manually verifying some PyPile results for a project, and I have a couple of technical questions:
For “Cemented Soil with Cohesion and Friction”, which exact formulation do you use? Is it Evans & Duncan (1982) as originally published, or a modified version? My hand calculations near the ground surface do not match the program’s output.
For a stiff clay layer with a thin free-water layer followed by sand, do you apply any limit to Georgiadis’ equivalent depth method? When I replicate the procedure manually, I obtain an equivalent depth greater than the actual thickness of the clay layer.
Is there any technical documentation available that includes the exact equations used, beyond the information provided on the website?
I’m using PyPile for lateral pile analysis with multi-layered sand profiles (API Sand model). I noticed in the changelog that version 0.9.0.6 “corrected equivalent depth for Reese sand when the sand layer is in the second layer or below,” which suggests PyPile uses the Georgiadis (1983) equivalent-depth method for layered soils.
Could you please confirm:
1. Does this same equivalent-depth correction also apply to the API Sand (O’Neill) p-y curve model, or only to Reese Sand?
2. If it applies to API Sand, is the ultimate resistance used for the equivalent-depth matching the full pu = min(pus, pud), or only one of the two (e.g., only pud)?
3. Is there a technical document (PDF) describing this formula in detail that I could reference? I couldn’t find one in my installation folder.
Hi Samuel, 1. Yes, the equivalent depth applies to API Sand; 2. the equivalent depth used for both Pus and Pud; 3. for API sand, you can reference API RP-2A.
I would like to ask about PyPile License for Academical Use. Is it true? I would like to propose the academical license for my research proposal. I’ve already emailed to the company, Thanks.
Hello,
I am manually verifying some PyPile results for a project, and I have a couple of technical questions:
For “Cemented Soil with Cohesion and Friction”, which exact formulation do you use? Is it Evans & Duncan (1982) as originally published, or a modified version? My hand calculations near the ground surface do not match the program’s output.
For a stiff clay layer with a thin free-water layer followed by sand, do you apply any limit to Georgiadis’ equivalent depth method? When I replicate the procedure manually, I obtain an equivalent depth greater than the actual thickness of the clay layer.
Is there any technical documentation available that includes the exact equations used, beyond the information provided on the website?
Thank you in advance.
Kind regards,
Hello,
I’m using PyPile for lateral pile analysis with multi-layered sand profiles (API Sand model). I noticed in the changelog that version 0.9.0.6 “corrected equivalent depth for Reese sand when the sand layer is in the second layer or below,” which suggests PyPile uses the Georgiadis (1983) equivalent-depth method for layered soils.
Could you please confirm:
1. Does this same equivalent-depth correction also apply to the API Sand (O’Neill) p-y curve model, or only to Reese Sand?
2. If it applies to API Sand, is the ultimate resistance used for the equivalent-depth matching the full pu = min(pus, pud), or only one of the two (e.g., only pud)?
3. Is there a technical document (PDF) describing this formula in detail that I could reference? I couldn’t find one in my installation folder.
Hi Samuel, 1. Yes, the equivalent depth applies to API Sand; 2. the equivalent depth used for both Pus and Pud; 3. for API sand, you can reference API RP-2A.
Thanks a lot for your help.
I would like to ask about PyPile License for Academical Use. Is it true? I would like to propose the academical license for my research proposal. I’ve already emailed to the company, Thanks.
Hartanto, an academic license has been activated for you.