×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Monitoring Land Subsidence using Extensometer

Monitoring Land Subsidence using Extensometer

Monitoring Land Subsidence using Extensometer

(OP)
Hi I’m undergraduate mechanical engineering student, I’m currently working on a project about monitoring land subsidence. Many source and journal show one of the methods to moniroting land-sub is using rod extensometer. I can understand with the concept, but im having trouble understanding the technical issues.





1. in this pic shows that the anchor is attached to the surrounding soil, but is the anchor outside or inside the borehole? If it’s inside, how is the anchor placed/attached to the soil and take measurement, is the borehole has holes along its length or has a hole where the anchor supposed to placed?

2. if the anchor attached to the surrounding soil, and it moves vertically downward alongside with the soil, how could the head/borehole is not also moves downward? Because if it moves how is the measurement obtained, knowing that measurement is obtained between the anchor at the bottom and the reference point at head/collar of borehole? if the head/borehole also moves downward I think you can’t obtained the measurement, cause you need a steady structure as a reference point

Does anyone has the knowledge and could answer my question and explain it to me? Id be grateful, thanks in advance.

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


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. 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