Table 6. Decision aid and guidelines for selecting rapid stabilization techniques for vehicle mobility on thawing ground

Table 6. Decision aid and guidelines for selecting rapid stabilization techniques for vehicle mobility on

thawing ground.

High

Gravel

Tree

Uni-

Small

Chunk

Tire

strength

PVC

geotextilel

road

slash

Mats

pallets

wood

mats

chips

Geonet

fascine

34i

Overall trafficability,

ability 1=excellent, 5=poor

1=none, 5=high potential

3g

Foot traffic

1

5

2

4

1

N/A

1 =easy, 5=diffficult

Material

P

T

T/P

T

T/P

P

T

T/P

life expectancy

P=permanent (>5 yr),

T=temporary

Localized section

either

LS

either

LS

either

LS

(LS) for repair or entire road ?

Material availabilitya

lb

5d

1

45

12

45

35

2-4

1=local store

5=must be ordered

5d

Equipment required

1

3

1

3

1

1=standard equipments

5=special equipment

3d

Training

12

1

2

1

2

1

2

1=minimal, 5=special

25e

Material preparation

5

1

4

5

1

4

1=Easy, 5=Labor intensive

24f

2

Material placement

23

5

24

3

2

23

1=easy, 5=labor intensive

Material cost

1

5

2

5

3

2

1=low, 5=high

Potential exposure to

1

5

4

3

1

3

1

3

enemy fire (during placement)

1=low, 5=high

a

Availability of proximity to forests, lumberyards, etc.

b If

no trees, old corn husks, etc.

c Std equipment: dozer, loader, and dump truck.

d USDA Forest Service has 2 prototype woodchunkers.

e Including borrow pit development.

f Including anchoring.

g Pieces of metal may penetrate shoes or tires.

h Typically PVC fascine is surfaced with grating or wood mat.

i Needs cover material.

j If unsurfaced, geotextile can become entangled in tank tracks.

k Omit steel bead to run rubber tired vehicles

l Geosynthetics used with no surface cover.

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