Massive steam and pneumatic hammers ended up used in that undertaking. But after the independence of Bangladesh in 1971, the technological innovation didn't moved ahead. Such a pile is constructed possibly by driving a metallic shell to the bottom and filling it with concrete and go away the shell While https://reginam468epb2.newsbloger.com/32658955/an-unbiased-view-of-deep-foundation-solutions-bd