In an Oedometer test, the void ratio of a clay decreased from 0.652 to 0.51 under change in effective pressure from 60 KPa to 130 KPa. Under two-way drainage (for the same test) it was found that the required time to achieve 50% tso consolidation was 12 mins with the sample of thickness 12mm. Find the coefficient of permeability of the clay for the given stress range. No wrong answers please i will downvote and box the final answer

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Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.