The excavation or drinking water substitution technique is beneficial for soils that happen to be much too unfastened to gather an intact Main or clod, or for soils made up of gravel. Each the intact clod and excavation techniques are explained in detail by Cresswell and Hamilton (2002). Plastic Device: https://aiwhisperer00099.bloggerchest.com/35914777/the-definitive-guide-to-soil-investigation-experts-bangladesh