The excavation or drinking water substitution technique is beneficial for soils which might be also unfastened to gather an intact core or clod, or for soils containing gravel. Both of those the intact clod and excavation strategies are explained in detail by Cresswell and Hamilton (2002). go through a lot https://unity78888.get-blogging.com/36510482/rumored-buzz-on-soil-investigation-report-bangladesh