Description: Test - 2 | |

Number of Questions: 20 | |

Created by: Yashbeer Singh | |

Tags: Test - 2 Soil Mechanics Civil Engineering - CE |

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^{x }3 m rectangular footing due to a certain load intensity is 100 kN/m^{2}. What is the vertical stress in kN/m^{2 }below the centre of a 4 m ^{x }6 m rectangular footing at the same depth and same load intensity?

A** **sand layer found at sea floor under 20 m** **water depth is characterised with relative density = 40%,** **maximum void ratio = 1.0, minimum void ratio = 0.5 and specific gravity of soil solids = 2.67. Assume the specific gravity of sea water to be 1.03 and the unit weight of fresh water to be 9.81 kN/m^{3}.

What would be the effective stress (rounded off to the nearest integer value of kPa) at 30 m depth into the sand layer?

A** **sand layer found at sea floor under 20 m** **water depth is characterised with relative density = 40%,** **maximum void ratio = 1.0, minimum void ratio = 0.5 and specific gravity of soil solids = 2.67. Assume the specific gravity of sea water to be 1.03 and the unit weight of fresh water to be 9.81 kN/m^{3}.

What would be the change in the effective stress (rounded off to the nearest integer value of kPa) at 30 m depth into the sand layer if the sea water level permanently rises by 2 m?

_{1} due to the point load Q on the ground surface as shown in figure is s_{2}. According to Boussinesq’s equation, the vertical stress at point P_{2} shown in the figure will be

^{−2}m/ s. The barrel stands on a saturated bed of gravel. The time required for the water level in the barrel to drop by 0.75 m is

** Direction:** The unconfined compressive strength of a saturated clay sample is 54 kPa.

The value of cohesion for the clay is

** Direction:** The unconfined compressive strength of a saturated clay sample is 54 kPa.

If a square footing of size 4 m x 4 m is resting on the surface of a deposit of the above clay, the ultimate bearing capacity of the footing (as per Terzaghi’s equation) is

Percentage finer than 4.75 mm = 60

Percentage finer than 0.075 mm = 30

Liquid Limit = 35%

Plastic Limit = 27%

The soil classification is

** Direction:** Examine the test arrangement and the soil properties given below.

The maximum resistance offered by the soil through skin friction while pulling out the pile from the ground is

^{x} 300 mm plate placed at 2 m below the ground level to determine the bearing capacity of a 2 m ^{x} 2 m footing placed at same depth of 2 m on a homogeneous sand deposit extending 10 m below ground. The ground water table is 3 m below the ground level. Which of the following factors does not require a correction to the bearing capacity determined based on the load test?

** Direction:** Examine the test arrangement and the soil properties given below.

The maximum pressure that can be applied with a factor of safety of 3 through the concrete block, ensuring no bearing capacity failure in soil using Terzaghi’s bearing capacity equation without considering the shape factor, depth factor and inclination factor is

^{$y_\omega$} = 10 kN/m^{3}, the void ratio and the saturated unit weight of the clay, respectively are

^{3}) is