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Identify the Method used for the dewatering of the foundation trenches.(a) Electro osmosis process(b) Chemical process(c) Cement grouting(d) Freezing processI had been asked this question in class test.Question is taken from Deep Excavations topic in chapter Deep Excavations, Pile Foundations and Caisson of Construction & Building Materials

Answer»

The CORRECT OPTION is (d) FREEZING process

The explanation: In the freezing process method, the area surrounding the EXCAVATION is frozen and THUS a solid wall of frozen Earth is formed. The principle of ground freezing is the use of refrigeration to convert in-situ pore water to Ice.



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