A
corner of a five-story commercial building resting on a raft
foundation settled down a few inches...
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Civil Engineering
Acorner of a five-story commercial building resting on a raftfoundation settled down a few inches in the last few years of itsconstruction due to a pocket of loose soil underneath. As a resultof undesirable settlement, the usage of building was affected, andthe owner seeks the help of a consultant to suggest the propermethod of underpinning to avoid any further settlement. Soilinvestigation reports showed that the hard rock stratum isavailable at a depth of 10 meters from the natural ground level.Considering the above scenario, answer the followingquestions:
i.Suggest a suitable underpinning method as a solution for the aboveproblem. [1]
ii.Write the step by step procedure aided with a neat sketch for theabove suggested method. [5]
iii.State any two advantages and limitations each of the suggestedmethod. [2]
iv.Comment on the ‘cost effectiveness’ of the method used.
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Answergiven thatA corner of a fivestory commercial building resting on a raftfoundation settled down a few inches1 Under pinning is technique to repairstrengthen the existingfoundation of structure Selection of under pinning method dependupon foundation
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