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

Vibro Hammer Tolerances

Vibro Hammer Tolerances

Vibro Hammer Tolerances

Looking at earth retaining next to some process equipment with several pipe tie-ins. The solution would involve driving piles with a Vibro hammer right next to the equipment. What things should I look out for and what would be acceptable limits for such a situation? Thank you in advance :)

RE: Vibro Hammer Tolerances

I think you already know...vibrations that affect sensitive equipment. The below is an extract from Groundborne vibration caused by mechanised construction works - Transport Research Laboratory (UK).

There are currently two British Standards which offer advice on acceptable levels of vibrations in structures. BS 7385 : Part 1 : 1990, Mechanical vibration and shock - vibration of buildings - guidelines for the measurement of vibrations and evaluation of their effects on buildings, discusses the principles for carrying out vibration measurements and processing the data. Part 2 of the Standard, Evaluation and measurement for vibration in buildings. Guide to damage levels from groundborne vibration (BSI, 1993), suggests levels at which the following three categories of damage might occur.As for what would be acceptable limits:

Cosmetic The formation of hairline cracks on drywall surfaces, or the growth of existing cracks in plaster or drywall surfaces; in addition, the formation of hairline cracks in mortar joints of brick/concrete block construction.

Minor The formation of large cracks or loosening and falling of plaster or drywall surfaces, or cracks through bricks/concrete blocks.

Major Damage to structural elements of the building, cracks in support columns, loosening of joints, splaying of masonry cracks, etc.

As for your issue, you are dealing with equipment. The above recommendations are for buildings. Only the equipment manufacturer will be able to tell you the acceptable peak particle velocity. I image they will likely say zero.

You should be looking at using a press piler which is nearly vibration free. See GIKEN - https://www.youtube.com/watch?v=dEkcujTI5qk

RE: Vibro Hammer Tolerances

If the earth retaining wall uses soldier beams, perhaps they could be drilled-in-place. This is very common. Press-in sheet pile drivers aren't very economical, common, or available. Drilling soldier beams could be difficult and expensive depending on the ground conditions.


RE: Vibro Hammer Tolerances

Its the opposite in the UK PEinc - soldier pile walls are much less common that silent pile drivers.

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 - The New World of Thermoplastic Manufacturing
Digital-direct thermoplastic manufacturing offers exceptional quality, opens the door to novel design parameters not possible with injection molding while also bypassing the long lead time and up-front investment in injection molding tooling, offering a better total value proposition. Download Now
White Paper - Strategies to Secure Connected Cars with Firewalls
White-hat hackers have demonstrated gaining remote access to dashboard functions and transmissions of connected vehicles. That makes a firewall a vital component of a multilayered approach to vehicle security as well as overall vehicle safety and reliability. Learn strategies to secure with firewalls. Download Now
White Paper - Model Based Engineering for Wire Harness Manufacturing
As complexity rises, current harness manufacturing methods are struggling to keep pace due to manual data exchanges and the inability to capture tribal knowledge. A model-based wire harness manufacturing engineering flow automates data exchange and captures tribal knowledge through design rules to help harness manufacturers improve harness quality and boost efficiency. Download Now
White Paper - What is Generative Design and Why Do You Need It?
Engineers are being asked to produce more sophisticated designs under a perfect storm of complexity, cost, and change management pressures. Generative design empowers automotive design teams to navigate this storm by employing automation, data re-use and synchronization, and framing design in the context of a full vehicle platform. 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