Back Matter for User's Manual for GeogridBridge 3.0

α-method

1

β-method

1

Acceptable output values

22

ASTM D6637

18

Bilinear Adapted Terzaghi (BAT) model

11, 34, 48

Coefficients of consolidation

14

Column geometry

17, 17f

Combined stiffness

18

Complex worked example (GGB3)

41–55

arching mobilization

48, 48f

batch analysis

50–55

number of trials

50, 50f

parameters to vary

51–53, 52f–53f

results analysis

54–55, 54f–55f

run

54

serviceability limits, define

50, 51f

of cross section

41f

geosynthetic reinforcement stiffness

48, 48f

input column geometry

47, 47f

material properties

42t

material properties for each layer

43–46, 43f

clay 1

44–45

clay 2

46

general embankment

43

load transfer platform

44

sand 1

44

sand 2

45

postconstruction embankment profile

42–43

problem statement

41–42, 41f

results analysis

49–50, 49f

spreadsheet, run

49

surface loading conditions

47, 47f

Compression of embankment material

13–14

clays

time rate of consolidation analysis, properties for

14

ultimate consolidation analysis, material properties for

13–14

; columns

14

sands

13

Critical height

27

Distribution

22–23, 23f

GeogridBridge 1 (GGB1)

5

functionality of

5t–6t

vs. GGB2 vs. GGB3

5t–6t

GeogridBridge 2 (GGB2)

5

functionality of

5t–6t

vs. GGB1 vs. GGB3

5t–6t

GeogridBridge 3 (GGB3)

complex worked example

41–55

functionality of

5t–6t

vs. GGB1 vs. GGB2

5t–6t

inputs

2f, 9–15

column geometry

17, 17f

compression, material properties for

13–14

embankment soil properties

11

geosynthetic reinforcement

17–18

loading conditions

16

mobilization of arching

11–12, 12f

negative skin friction, material properties for

12–13

post-construction profile

10, 10f

stress adjust

14–15, 16t

layer in

9–11, 9t, 10f

manual

1–2

MCS and

21–25

acceptable output values

22

distribution type

22–23, 23f

number of trials

21–22

soil parameter variability

23–25, 24t

outputs

27–28

profile

9–11, 9t, 10f

simple worked example

29–40

spreadsheet

5–8

Batch Output tab

6

conditional formatting in

7

Constr Analysis tab

6

Definition Sketches tab

6

Load transfer plot tab

7

MCS Histograms tab

6

Post-constr Analysis tab

6

Revision History tab

7

tabs

6–7

time rate of consol

6

units

7, 8t

stratigraphy

9–11, 10f

Geosynthetic reinforcement

17–18

LDC

. See load displacement compatibility

Length of column

17

Load displacement compatibility (LDC)

1

calculations

9

GGB3 for

5–8

Load transfer platform (LTP)

10

Long-term stiffness

18

LTP

. See load transfer platform

Maximum differential settlement

27

MCS

. See Monte Carlo simulation

Monte Carlo simulation (MCS)

21–25

acceptable output values

22

distribution type

22–23, 23f

number of trials

21–22

soil parameter variability

23–25, 24t

Negative skin friction, material properties for

12–13

Neutral plane

27

OCM

. See overconsolidation margin

OCR

. See overconsolidation ratio

Overconsolidation margin (OCM)

13–14

Overconsolidation ratio (OCR)

13–14

Poisson's ratio

44–45, 47–48

of arching soil

34

for column

14

for concrete columns

33

COV of

24

of sand layer

13

Post-construction settlement at embankment surface

28

Probability of serviceability failure

22

Simple worked example (GGB3)

29–40

arching mobilization

34, 34f

batch analysis

36–40

parameters to vary

37–38, 38f–39f

results analysis

39–40, 39f–40f

run

39

select number of trials

36, 36f

serviceability limits, define

36, 37f

cross section

29f

geosynthetic reinforcement stiffness

33–34, 34f

input column geometry

32–33

array geometry

32, 33f

cap shape and geometry

32

column shape and geometry

33, 33f

inputs for soil profile in

32f

material properties for each layer

30–31, 30t–31t

postconstruction embankment profile

30

problem statement

29–30

results analysis

35–36, 35f

spreadsheet, run

35

surface loading conditions

32, 32f

Simplified Ground Reaction Curve-Concentric Arches model (SGRC-ACA)

11

Simplified Ground Reaction Curve-Hewlett and Randolph model (SGRC-AHR)

11

Simplified Ground Reaction Curve (SGRC)

11

Soil arching

embankment soil properties

11

mobilization of

11–12, 12f

Soil parameter variability

23–25, 24t

SRR

. See stress reduction ratio

Strain

27–28

Stress

14–15, 16t

Stress reduction ratio (SRR)

27

Tabs, GGB3 spreadsheet

6–7

Batch Output tab

6

Constr Analysis tab

6

Definition Sketches tab

6

Load transfer plot tab

7

MCS Histograms tab

6

Post-constr Analysis tab

6

Revision History tab

7

time rate of consol

6

Tensile stiffness

18

Tension

27–28

Total uniform settlement of embankment surface

28

UGRC

. See User-Defined Ground Reaction Curve

Units, GGB3 spreadsheet

7, 8t

User-Defined Ground Reaction Curve (UGRC)

11–12

Variability, soil parameter

23–25, 24t

Young's modulus

33–34, 42t, 44–45

for cohesionless soils

30t

concrete columns and caps

47

for embankment material

48

for sands

31t