A time tested construction technique that would be handy to know. Read the calculations below then click on the link at the bottom of the article to see this technique in action. It’s something to cheer up any engineer. It will put you in the picture and keep you up-to-date with the latest construction developments.



Below is a link to a short video of the Pakistani pile driving technique. Notice that the pile driving becomes effective when the extra man jumps on. Very finely tuned! The chant is also catchy.



Now, let's analyze the Engineering here:

6 men x 180 lbs. = 1080 lbs. static force Jumping up and down will create a 3 times dynamic effect = 3240 lbs./jump = 1.6-ton thumps if the pile is tapered to 2 in. x 2 in., cross section at the tip = sq. in. So, dynamic press "Add a man" feature will increase to 950 psi, so buy the option!

Increase the chant and dynamic force goes up to 5 times to bring maximum pressure/thump to 1600 psi for a 7-man team.



Quite good, and it will penetrate hard clay and sandy soil but not hard rock!



The foreman is probably the guy on the tambourine...you'll undoubtedly watch this twice because it’s hard to believe your eyes the first time...



https://www.youtube-nocookie.c...ed/cFb0nLCKypg?rel=0

https://www.youtube-nocookie.c...ed/cFb0nLCKypg?rel=0

That'll work great until they get a union.

Saw similar techniques when living in India. Loved the emphasis on safety. Boots, gloves, fall arrests, hard hats; not a chance. Kill one, you have 1000 in line to take his place.

Yeah,a union + osha.2 things to fxxk up a system that works.

quote:

Originally posted by NormanConquest:
Yeah,a union + osha.2 things to fxxk up a system that works.

Throw in the NLRB and the EPA......


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IRS, SEC , Department of Labor etc etc