Chapter 6

Question 1

Two strategies used to asses soil are

Answer 1

test pits

test borings

Question 2

test pits depth are

Answer 2

reach a depth up to 8 feet

Question 3

test borings are used when

Answer 3

are used when a test pit may not reach deep enough

Question 4

A square pad of concrete that supports a column often reinforced and limited to a relatively small load

Answer 4

Column footings

Question 5

what type of foundation transfers the weight of the building directly to the soil at the base of the building

Answer 5

Shallow foundation

Question 6

type of shallow foundation that incudes a wide thick area to distribute the weight of a wall on the bearing soil

Answer 6

Wall footings AKA Strip footings

Question 7

Footing consisting of layers of beams placed at right angles to each other and usually encased in concrete

Answer 7

Grillage footing

Question 8

Thick slab beneath the entire area of a building a mat may be several feet thick and heavily reinforced

Answer 8

Mat slab foundation

Question 9

the weight of the soil removed is equal to the weight of the building, the total weight supported at each soil layer beneath the building remains the same before and after excavation

Answer 9

Floating foundations

Question 10

Deep foundations take the form of what

Answer 10

Piles or Piers

Question 11

driven into the ground and support a load by transferring the load either through friction with the surrounding soil or through contact with rock or stable soil layer

Answer 11

Piles

Question 12

Deep foundation type that uses beams mounted on concrete wedges/blocks to support loads also know as caissons and belled pier is

Answer 12

Pier

Question 13

a system of upright posts mounted to wedge shaped concrete piers that transfer the weight of the structure to the ground

Answer 13

post and piers

Question 14

Belled pier is

Answer 14

when a pier is designed with a footing

Question 15

Materials most commonly used for foundation walls

Answer 15

Concrete and masonry block secured with mortar

Question 16

closed cell foam used for a growing number of purposes including building insulation properties include rigidity low weight and formability

Answer 16

Expanded polystyrene (EPS)

Question 17

construction technique that uses hollow foam blocks with predetermined sizes and shapes the blocks lock together and are filled with concrete to form structural supports

Answer 17

Insulated concrete form / ICF construction

Question 18

Types of Settlement movement (3)

Answer 18

Settlement- downward movement

Heaving - Upward movement

Lateral displacement- Outward movement

Question 19

The use of permanent supports to strengthening an existing foundation

Answer 19

Underpinning

Question 19

4 Causes of differential settlement are

Answer 19

Nonuniform soil conditions under the foundation

Footings or different sizes

Footings placed at different elevations

unequal loads on footings

Question 20

Temporary support for formwork or structural components or used to hold sheeting against trench walls

Answer 20

shoring