The 25mm thick significant metal tube is pushed While using the end shut by a metal shoe. On reaching the necessary driving resistance, an entire length cage is decreased in to the tube and crammed with large slump concrete. The tube is then vibrated out leaving a shaft of concrete. https://cast-in-situ-piles26036.glifeblog.com/31664716/everything-about-cast-in-situ-piles-in-dhaka