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

geotechnical investigation for a railroad

geotechnical investigation for a railroad

geotechnical investigation for a railroad

Hi Everyone,
I am currently involved with geotechnical investigation for a railroad embankment. Can you advise what should be the distance between holes and depth of investigation? What parameters are important and should be considered.
The embankment is 11 m wide and 1.5 high and there are two rail road sidings(low speed to let the train stop)
I think settlement/heave is critical for this case, since the tolerances for the railway is limited.
Any comment on ballast for the embankment will be great,

RE: geotechnical investigation for a railroad

Get any info you can get on the geology as well as the pedologic mapping which will help. That way you can get a better idea on where the better or worst places may be. If the budget will take it widely spaced borings is usually the rule, with the option to add more where some question may come up. As to ballast, most railroads have their own system. My experience with railroads has been that they are set in their ways and building anything new is governed by those ways. Newer engineers there have never built anything so you will be talking to beginners as to construction.

RE: geotechnical investigation for a railroad

Thanks oldest guy, the project is located in Southern Ontario, Canada and based on available information I expect to get clayey silt there. My original proposal was 4 boreholes spaced every 50 m but then I added 2 boreholes, just in between if there is any change in soil condition. As you said, I should see what are the regs for the railroad and follow that.I will have the ballast more than frost depth to avoid heave, but still confused about the settlement criteria.
I agree, these railroads are all built decades ago and we are all considered new engineers to those projects.

RE: geotechnical investigation for a railroad

How long is the portion of embankment you are looking at?

RE: geotechnical investigation for a railroad

Try the American Railway Engineering and Maintenance Assoc (AREMA). They have a lot of publications for design and enginerring.

RE: geotechnical investigation for a railroad

Another vote for AREMA. It's all spelled out.


ípapß gordo ainÆt no madre flaca!

RE: geotechnical investigation for a railroad

Thanks for the reference,I will look at it.
Its almost 200 m and its two lines as siding , so I expect that it won't have high speed.

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! Already a Member? Login


White Paper - Implementing a Multi-Domain System
IoT systems are multi-domain designs that often require AMS, Digital, RF, photonics and MEMS elements within the system. Tanner EDA provides an integrated, top-down design flow for IoT design that supports all these design domains. Learn more about key solutions that the Tanner design flow offers for successful IoT system design and verification. 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