SITE Flashcards

1
Q

basement waterproofing vs dampproofing

A

waterproofing: control water and moisture when hydrostatic pressure is present
dampproofing: no hydrostatic pressure present

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2
Q

hydrostatic pressure

A

force the water in the soil exerts onto your foundation

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3
Q

soil treatment ways (7)

A

drainage, fill (remove undesirable soil and fill with new, engineered soil brought in), compaction, densification, surcharging, mixing, geotextiles

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4
Q

surcharging

A

preloading of the ground with fill material to cause it to consolidate and settle - increases bearing capacity of soil or decreases settlement of soil

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5
Q

retention pond

A

prevents excessive stormwater runoff by temporarily holding it and releasing it at a controlled rate

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6
Q

bioswale

A

allow sediment to settle while water drains

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7
Q

infiltration basin

A

retains sotrmwater until it seeps into the ground

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8
Q

proxemics

A

territorialitym spacing and positioning between people, and organization of the environment

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9
Q

stand-off distance

A

space between building and potential location of blast theart

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10
Q

gross area formula

A

efficiency ratio

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11
Q

minimum sidewalk width

A

5ft

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12
Q

active solar system needs:

A

requires collector, storage device, and distribution system

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13
Q

water table

A

elevation below which the soil is water-saturated

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14
Q

geotechnical report info (7)

A

stability, strength, compaction characteristics, drainage characteristics, organic content, plastic limit, and overal content of earth

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15
Q

brownfield site

A

site that is confirmed or suspected to be contaminated

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16
Q

angle of repose

A

steepest angle that the side of an excavated area can be before soil backslides into the pit

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17
Q

soldier beam

A

wide-flanged steel beams driven into the soil - wood boards (lagging) are placed between the beams - shoring system

18
Q

soil mixing

A

before excavating, make walls by mixing cement and water with soil in consecutive columns creating a retaining wall for the excavating site

19
Q

cross-lot bracing vs rakers

A

cross-lot bracing goes all the way across the excavation

rakers go only part way and terminate at the earth

20
Q

tie-backs

A

secure into the earth by groud - steel roads and cables inserted - anchor in the earth and a waler

21
Q

shallow frost-protected footing

A

extending insulation down into the earth

22
Q

floating foundation

A

type of matt foundation - calculate weight of building and weight of soil displace and make them equal

23
Q

foundation for earthquakes (3)

A

series of rubber dampers, hydraulic shock absorbers, and base isolation pads

24
Q

caisson vs pile

A

caissons are drilled and then filled with concrete

piles are hammered in - use when there is no cohesive soil

25
Q

pile cap

A

group piles together and top them with a pile cap to distribute the load of the column among several piles

26
Q

helical pile

A

used to shore up existing buildings where excess vibrations associated with ramming piles would be a problem - screwed

27
Q

underpinning

A

improve the foundation of an existing building as part of a renovation/restoration

28
Q

underpinning ways (3)

A

extend the foundation to some deeper strata with more competent support

make foundation wider so that it rest on more soil, distributing the load

improve the earth with imported fill or grout

29
Q

provide capillary break in the soil (2)

A

drainage mat or gravel fill

30
Q

provide waterproofing

A

sheets, liquid-applied barriers, or special concretes

31
Q

integral waterproofing

A

use of special admixture that stops up the pores of the concrete

32
Q

fundation over budget (3 ways)

A

foundation below water table

deep foundation bc of structural geometry

foundation interferes with neighboring foundation

33
Q

earth reinforcing (alternative to retaining wall) (2)

A

compact earth into layers, each with net of steel, plastic, or glass fiber to stabilize the soil, creating a wall

netting to hold back the earth, without wall

34
Q

ALTA survey vs Topo surver

A

ALTA survey shows property lines, improvements, easements, rights-of-way, land ownership conditions

topographical survey measures the contours of the land

35
Q

zoning ordinance vs variance

A

zoning ordinance is a rule

variance is an exception to the rule

36
Q

right-of-way vs easement

A

right-of-way allows someone to pass through someone else’s land (for a sum of money and included in the deed)

easement allows other parties to use the land (utilities or environmental reasons)

37
Q

first-right-of-refusal

A

contractually agreed upon that if a property goes up for sale, the person with the first-right-of-refusal can place the first bid

38
Q

step-back vs setback

A

step-back limits a building in height before requiring a step back in plan (allow for light and air in a city)

setback is the minimum requirement as to how far a building must be from the road or another building

39
Q

maximum cross slope for ADA ramp

A

1:50

40
Q

fire lanes width

A

20ft

41
Q

liquefaction

A

defines the sudden loss of shearing resistance in a cohesionless soil

42
Q

types of piles

A

steel h pile

steel pipe pile

precast concrete pile

wood pile