SM soil Ko = 0.6 Assume elastic behavior Ysat 22 kN/m G = 100 MPa, v = 0.30 24m 6m 6m The tunnel on the right has been excavated and a concrete liner has been installed. The tunnel on the left is now going to be excavated. Assume elastic ground behavior and that the pressure balance TBM will balance the water pressure but that pi'will = 0. a. Determine the change in total radial stress at springline of the existing right tunnel liner created by excavation of the left tunnel.

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A: Cohesionless soil:

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Q: SITUATION 6 A soil specimen has a dry unit weight equal to 16 kN/m3. Determine the moisture content…

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Q: Calculate the value of the effetive stress at the bottom of the given soil.

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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.