In case of non-cohesive soils such as sand and gravel ___________ reduction in allowable bearing capacity of the soil should be applied, if the water table is situated below or near the bearing surface of the soil.(a) 20%(b) 50%(c) 80%(d) 100%This question was addressed to me in class test.My query is from Ground Techniques in division Site Investigation and Ground Techniques of Construction & Building Materials

In case of non-cohesive soils such as sand and gravel ___________ redu

1.	In case of non-cohesive soils such as sand and gravel ___________ reduction in allowable bearing capacity of the soil should be applied, if the water table is situated below or near the bearing surface of the soil.(a) 20%(b) 50%(c) 80%(d) 100%This question was addressed to me in class test.My query is from Ground Techniques in division Site Investigation and Ground Techniques of Construction & Building Materials
Answer» Correct choice is (b) 50% To EXPLAIN I would say: HOWEVER, if water table is situated below the BEARING surface of the SOIL at a depth equal to the width of the FOUNDATION trench, no such reduction should be applied. But in this case, 50% reduction is applied. For intermediate depths of the water table, the proportion and percentage reduction should be applied.

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