Force generate surrounding soil during piling

[dr. rifat]

Hello engineers,
I am trying to figure a problem out.Please give me a wise answer .

In cast in situ concrete pile drilling,if the cutter(known as heavy drilling bit ) weight is 1000 kg,then if it fall from above 5',then how much force or how much vibration will generate in surrounding soil?(e.g. near about 3').Also what is this force is known as?Is there any formula to determine this force?

Sorry for my bad english.
here the procedure:

http://www.youtubecutter.com/watch/c00ab8d6/[/URL]]

RIFAT

 

[MotorCity]

F = MA.

What concerns do you have about the cutter head falling 5' onto the soil?

 

[dr. rifat]

By calculation I get 14000 J force will generate and this force will passing through vibration.I want to know this vibration force dear.

RIFAT

 

[WARose]

The amount of force generated will depend on the system impacted. If I understand you correctly, you are looking for the (ground) vibration amplitude generated about 3 feet away correct?

 

[Okiryu]

Perhaps you are looking if vibrations due to pile driving affect surrounding structures? There are charts based on particle velocity and structure distances for this. You may also need to look at dynamic compaction effects during installation. There a several charts that address vibrations and their effect to nearby structures.