D. On obtaining the saturation degree the drilling bit is eradicated with casing kept within the borehole. A liner of comprehensive depth upto tough rock / strata is essential. M.S. or HDP pipe liners are being used MS liners are on the other hand preferable. Seismic retrofitting can be a https://bangkok-wax47035.theobloggers.com/36627953/the-greatest-guide-to-micropile-driving-work