A foundation, 1.5 m square, will carry a load of 700 kN and will be founded at a depth of 1.0 m in a deep deposit of sand. The soil is saturated throughout with a unit weight of 19.5 kN/m3. Ground water level occurs at a depth of 1.5 m below the surface of the soil. A series of SPT tests gave the following results: Depth range (m) N value Ground surface – 1.0 --- 1.0 – 2.0 10 2.0 – 3.0 12 3.0 – 4.0 14 4.0 – 5.0 20 Determine the elastic settlement at the centre of the foundation using De Beer and Martens’ method.
A foundation, 1.5 m square, will carry a load of 700 kN and will be founded at a depth of 1.0 m in a deep deposit of sand. The soil is saturated throughout with a unit weight of 19.5 kN/m3. Ground water level occurs at a depth of 1.5 m below the surface of the soil. A series of SPT tests gave the following results: Depth range (m) N value Ground surface – 1.0 --- 1.0 – 2.0 10 2.0 – 3.0 12 3.0 – 4.0 14 4.0 – 5.0 20 Determine the elastic settlement at the centre of the foundation using De Beer and Martens’ method.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A foundation, 1.5 m square, will carry a load of 700 kN and will be founded at
a depth of 1.0 m in a deep deposit of sand. The soil is saturated throughout
with a unit weight of 19.5 kN/m3. Ground water level occurs at a depth of 1.5
m below the surface of the soil.
A series of SPT tests gave the following results:
Depth range (m) N value
Ground surface – 1.0 ---
1.0 – 2.0 10
2.0 – 3.0 12
3.0 – 4.0 14
4.0 – 5.0 20
Determine the elastic settlement at the centre of the foundation using De
Beer and Martens’ method.
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