Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


What can large deformation methods for geomechanics bring to design of excavated structures?

What can large deformation methods for geomechanics bring to design of excavated structures?

What can large deformation methods for geomechanics bring to design of excavated structures?

I have a small research project related to using large deformation numerical methods in geomechanics. Particularly, I am exploring possibilities of modelling excavation problems using the Material Point Method.

Beyond the modelling aspect, I would like to understand how this novel method can bring added value to actual, real-world applications. Some common excavation practices in industry include tunnels, pile and sheet pile walls, diaphragm walls, cylindrical excavations for silos, tanks and other types of containers.

I imagine that generally such excavations are planned and designed according to limit equilibrium methods or FEM for the trickier stuff. FEM of course stops working once you have post-failure type deformation, but this is generally not needed for design. We design these things to not fail and don't really think about what would happen if they do fail.

My question is this: What added value in terms of economical or practical benefit can an awareness of large deformations of excavated works bring to the table? It's nice to have a sophisticated numerical method, but it would be quite pointless without bringing added value to real problems.

Thanks for your help and look forward to hearing from you.

RE: What can large deformation methods for geomechanics bring to design of excavated structures?

In your case, before getting too far into it, you should look up the various strength and physical properties engineers normally are familiar with to be used in your study and then contact some practicing structural and geotechnical engineers to see if your program might interest them. I suspect you need some form of "benefits to expect" program also with these contacts. No point in spending energy on something that doesn't get practicing engineers interested.

RE: What can large deformation methods for geomechanics bring to design of excavated structures?

Some things that I would be interesting on:
1. Sometimes excavations are done nearby existing structures and people would like to know how these excavations will affect these structures.
2. You can also check for groundwater conditions affecting excavations. Or, how groundwater is affected by excavations.
3. Transient loading affecting excavations.
4. Perhaps your model can also have design features (including costs). I think that if you can include design, it will be more attractive for practicing engineers.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


White Paper: Industrial Control Basics: Contactors
A contactor is an electrical device used for switching an electrical circuit on or off. Considered to be a special type of relay, contactors are used in applications with higher current carrying capacity, while relays are used for lower current applications. Download Now
Research Report: State of IoT Adoption in Product Development 2019
This research report, based on a survey of 234 product development professionals, examines the current state of Internet of Things (IoT) adoption by product design teams, its perceived importance, and what features and capabilities teams consider important when making decision about adding IoT functionality to their products. Download Now
Research Report: Augmented Reality for Maintenance, Repair and Overhaul (MRO)
The term Industry 4.0 denotes a cluster of technologies that’s poised to fundamentally reshape manufacturing and bring about a new industrial revolution. These include 3D printing (AM), the Industrial Internet of Things (IIoT), artificial intelligence (AI) and mixed reality technologies, more commonly known as virtual reality (VR) and augmented reality (AR). Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close