The URL below leads to a short video of a Pakistani pile-driving - TopicsExpress

The URL below leads to a short video of a Pakistani pile-driving construction technique. (The foreman is the guy on the tambourine). Notice that the pile driving becomes efficient only after the extra man jumps on. Very finely tuned! Their work-chant is also quite catchy!! Now lets analyze the engineering factors being here: Six 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 = 4 square inches. So, dynamic pressure/thump at pile tip = 3240/4 = 800 psi. Add a man feature will increase the force to 950 psi, so take up that option! Increase the chant, and dynamic force goes up to 5 times, to bring max.pressure/thump to 1600 psi for a 7-man team. This homo genius machine will penetrate hard clay and sandy soil but not hard rock. Clever. URL for this video :New South-Asian construction process https://youtube-nocookie/embed/cFb0nLCKypg?rel=0

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