Three. Right after rig positioning, drive the casing into the ground. Push steel casing to your minimal a depth of 1 m under the bottom stage to consider lateral hundreds and movements at website. The metal casing also beat complications as a result of groundwater for the duration of piling. https://eduardosfmua.blogdemls.com/32437089/the-definitive-guide-to-cast-in-situ-piles