how to design pipe pile wall?

[peterlam]

I am a civil engineering student. Recently, I have a assignment that need me to design a els system and I decide to use a pipe pile wall.

However, I know little about pipe pile wall and I search for it for a long time in Google.

How can I know what size of the diameter of the pipe pile wall need?


Does the pipe pile wall need to fill with excavation soil or cement?
after fill with soil, the Young modulus will change? How to calculate?

What is the spacing between two pipe pile wall? What is the thickness of the grouting around the pipe pile wall?
How can I calculate the support force with different spacing?


How deep of the pipe pile wall toe?
Without Young modulus, I cannot input the model into FREW.


Thank you very much.

 

[oldestguy]

Peterlam: Sorry but this site does not support homework for students. Your problem statement would floor an experienced engineer also. By the way, the "cement" you would use in the pipe is only the glue that is used in concrete.

 

[BUGGAR]

Can we ask what school you are attending and who your professor is?

 

[peterlam]

oldestguy: However, I think this is a real consultant engineer problem so I ask this on this site but not only a homework. OK, maybe I change the word "cement" to "concrete".
Yes, this homework also floor me as well.


BUGGAR: I am not study in America.

 

[oldestguy]

If I were to work on this, these would be some of the items needed.

A textbook that has information on soil statics evaluation methods. No Google search. If I didn't have one, the library does.

Final shape of surface and original shape.

A detailed soil investigation report with soil shear, density and water conditions.

Surcharge loads

structural engineering properties of a bending member with combined different elastic and strength properties

I'd not use a computer program, but rough it out manually first. As a student, I'd think a professor would expect you to know the basics, not a program
that may not be suitable for the situation totally. When I taught college courses, I wanted the students to show all the steps needed for the solution
or I'd down grade them. I found many foreign (not USA) students seemed to want the easy way, looking at grading marks only. They didn't learn anything that way. I found a few
would copy a fellow student's homework. I then OK'd that but told them "Out on your own someday there will be no one to copy from".

 

[oldestguy]

I question your Google searching techniques. Inputting "Young's Modulus of Soil" I get this. It has enuff for you.

http://www.geotechnicalinfo.com/youngs_modulus.html

I still think you don't need all this extra input for a rough evaluation. If necessary run a spreadsheet allowing quick analyses of many inputs.