The effective stress principle in soil engineering is one of the important theories put forward by Karl Terzaghi in the year 1936. It is the difference between total stress and pore water pressure. Effective stress can be defined as the stress that keeps particles together. In soil, it is the combined effect of pore water pressure and total stress that keeps it together. The effective stress principle can be explained by studying an example of soil mass that is in a fully saturated condition. The topic is further detailed in the presentation for better understanding.

Aparna P

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