Old Midterm

Question 1

Three philosophies of engineering geology?

Answer 1

All works are built on the ground
The ground will react
Works must be able to a combated said reaction

Question 2

Environmental factors that change loading conditions

Answer 2

Climate
Time
Ground stress
Natural hazards

Question 3

What are the three most important engineering qualities of materials

Answer 3

Strength
Compressibility
Permeability

Question 4

Two types of physical processes

Answer 4

Exfoliation and freeze thaw

Erosion from wind and water

Question 5

What minerals results from chemical weathering?

Answer 5

Clay minerals

Question 6

Review plastic and liquid limits calculations

Answer 6

Ok

Question 7

Define plastic and liquid limits

Answer 7

Above liquid limit soil is a slurry

Below liquid limit soil is brittle

Question 8

Two field procedures to differ silt and clay

Answer 8

Toughness test ( roll test)
Dilatancy test
Dry strength test

Question 9

Define void ratio

Answer 9

The ratio of the volume of the voids to the volume of the solids

Question 10

Three attributes associated with discontinuities that affect stability

Answer 10

Spacing
Orientation
Roughness
Waviness

Question 11

What material properties are the most relevant to slope stability?

Answer 11

Friction and cohesion

Question 12

Review stress and strain graph

Answer 12

Ok

Question 13

Review hydraulic gradient equation

Answer 13

Ok

Question 14

Review total stress equation

Answer 14

Ok

Question 15

Define dissipation

Answer 15

Reduction of excess pore water pressure with time

Question 16

What is consolidation?

Answer 16

Process of gradual reduction in volume of a fully saturated fine grained soil of low permeability due to a change in effective stress

Question 17

Review consolidation question

Answer 17

Ok

Question 18

Shear stress vs shear strain calculation

Answer 18

Ok

Question 19

What are the main objective of a site investigation?

Answer 19

Suitability of the site
Design
Construction
Effects of change
Site choice

Question 20

What is engineering geolog?

Answer 20

Application of geology to the engineering practice

Important for determining location, design and construction