Boring at a foundation side shows 6 m of fine sand having a unit weight of 17.8 kN/m3 over 6 m thick clay layer which has unit weight of 16.25 kN/m³. The clay layer lies over dense sand. The boring was continued up to 18 m below ground level. Water table was found at a depth of 5.0 m below round level. Consolidation test gave the following relation between void ratio and pressure: e = 1.45 - 0.5 logP(base 10) The foundation of a building is to be placed at 3 m below ground level due to which the pressure increment at top and bottom layers of the clay layer will be 80 kN/m? and 14.50 kN/m2 respectively. Estimate the amount of settlement expected due to the construction of the building. The pressure release due to excavation for foundation may be taken as 24.0 kN/m² and 12.0 kN/m? respectively at top and bottom layers of the clay layer. Fine sand y = 17.8 kN/m 3 5 m 6 m W.T. Clay X- 6 m- Y= 16.25 kN/m³ 6 m Dense sand

Boring at a foundation side shows 6 m of fine sand having a unit weight of 17.8 kN/m3 over 6 m thick clay layer which has unit weight of 16.25 kN/m³. The clay layer lies over dense sand. The boring was continued up to 18 m below ground level. Water table was found at a depth of 5.0 m below round level. Consolidation test gave the following relation between void ratio and pressure: e = 1.45 - 0.5 logP(base 10) The foundation of a building is to be placed at 3 m below ground level due to which the pressure increment at top and bottom layers of the clay layer will be 80 kN/m? and 14.50 kN/m2 respectively. Estimate the amount of settlement expected due to the construction of the building. The pressure release due to excavation for foundation may be taken as 24.0 kN/m² and 12.0 kN/m? respectively at top and bottom layers of the clay layer. Fine sand y = 17.8 kN/m 3 5 m 6 m W.T. Clay X- 6 m- Y= 16.25 kN/m³ 6 m Dense sand

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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