Dear Rizwan,
It's interesting and scope for research, is Geo technical engineering, observations of actual foundation software skills nothing to do here field soil testing must be familiar, type of soil by visual examination is a skill.
How to apply equal forces from all sides to a soil specimen, by immersed in water am i correct.
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Alex Thomas R.Eng, C.Eng, M.ASCE
Senior Site Engineer
Geo Structurals Pvt Ltd
CochinAlexThomasR.Eng, C.Eng, M.ASCEIndia
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