Substantial steam and pneumatic hammers have been Utilized in that venture. But once the independence of Bangladesh in 1971, the technological know-how did not moved ahead. Screw piles are generally Utilized in scenarios where negligible floor disturbance is needed, in spots with minimal access, or for non permanent structures. Also https://industrial-scientific66555.blogs100.com/31200508/a-simple-key-for-pile-foundation-engineering-bangladesh-unveiled