Three. Just after rig positioning, generate the casing into the ground. Drive metal casing to your bare minimum a depth of 1 m underneath the ground level to consider lateral hundreds and movements at site. The metal casing also combat problems resulting from groundwater through piling. আমাদের কোম্পানিতে দক্ষ সার্ভেয়াররা https://spencerumzlr.therainblog.com/31604222/details-fiction-and-cast-in-situ-piles-in-bangladesh