Soils

Question 1

Pile Foundations

Answer 1

• Deep cylindrical poles
• Each pile can be a different diamater depending on where it is, soil in area, etc

Question 2

Force

Answer 2

• Push or pull upon an object
• Unit is Newtons (N)/kiloNewtons (kN)

Question 3

Tensile load

Answer 3

Force from either side in opposing direction, increases the length of the object

Question 4

Compressive force

Answer 4

Force from either side inwards, decreases the length

Question 5

Hookes law

Answer 5

Direct proportion between applied load and amount of displacement

Question 6

Spring constant

Answer 6

• How difficult an object is to stress
• Unit = N/mm

Question 7

Stress and Strain

Answer 7

• Paramaters used when unable to test material in lab but dimesions DO NOT affect behaviour

Question 8

Stress

Answer 8

• What is applied to the materials (F)
• Stress unit = n/m2

Question 9

Strain

Answer 9

• Response to stress
• Change in length

Question 10

Elastic Modulus

Answer 10

• Measurement of objects resistance to elastic deformation
• Gradient of graph

Question 11

Strength

Answer 11

Maximum stress that can be applied to a material before failure

Question 12

Compressive strength

Answer 12

Squashing the item

Question 13

Elasticity

Answer 13

• When material is still within the elastic behaviour it will always return to its original state
• When goes past EB it goes into a different state (plasticity behaviour) where it will not return to its original state