Traverses and Barricades

MA03 Slide 1

Function

ES

ES

PES

PES

Traverse

Without traverse

With traverse

MA03 Slide 2

(Side Views)

Functional Types

An interceptor traverse A receptor traverse A container traverse A screening traverse

MA03 Slide 3

Interceptor Traverse

ES

ESPES

MA03 Slide 4

(Top View)

(Side View)

Receptor Traverse

PES ES

ESPES

MA03 Slide 5

(Top View)

(Side View)

Container Traverse

PES ES

ESPES

MA03 Slide 6

(Top View)

(Side View)

Screening Traverse

PES ES

ESPES

MA03 Slide 7

(Top View)

(Side View)

Types of Traverse

Type I : Double slope earth mound Type II: Single slope vertical face earth mound Type III: A steep double slope earth mound Type IV: Fully buried buildings

(< 600 mm below ground level)

Type V: Wall traverses Type VI: Natural features

MA03 Slide 8

Type 1 Traverse

MA03 Slide 9

Type 2 Traverses

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Type 3 Traverse

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Type 4 Traverse (bunker type)

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Type 5 Traverse

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Type 6 Traverse

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Position of Traverses

PES

PES

Practical gap for handling equipment,

vehicles, etc

1mIATG minimum

= 1m

MA03 Slide 15

(Side View)

(Side View)

Geometry of Traverses

Key factors:

• Height• Width• Length• Slope

MA03 Slide 16

Geometry of Traverses - Height

Stack

2 degMinimum traverse height

0.6m

MA03 Slide 17

(Side View)

Geometry of Traverses – Height – Screening Traverse

Stack

40 deg

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(Side View)

Geometry of Traverses - Width

Stack

2.4 mMinimum

traverse width

0.6m

MA03 Slide 19

(Side View)

Geometry of Traverses - Length

PES

1 m

1 m

ES

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(Top View)

Geometry of Traverses – Slope

Less than 26 deg

MA03 Slide 21

(Side View)

Materials - Earth

MA03 Slide 22

MaterialDescription

(in preference order)

Grading Limits Design slope(dependent on soil mechanics)Coarse Material Fine Material

Maximum particle size

Maximum content

(% by weight:20-75mm)

Maximum fines content

(% by weight< 63

micrograms)

Maximum clay content

(% by weight< 2 micrograms)

Well graded sand 6.3mm 0% 15% 5%1:1.5 to 2

(33° to 26°)

Well graded gravelly or clayey or silty sand (inorganic)

7.5mm 5% 20% 5%1:1.3 to 2.5(37° to 21°)

Inorganic fillOther inorganic material meeting the above grading requirements

Materials – Earth Plus Brick/Steel/Concrete

MA03 Slide 23

Material Effectiveness compared to soil(nominal value of 1)

Brick x 4

Concrete x 6

Steel x 24

Other Types of Traverse

Permanent:• Walls (concrete, masonry)

Field Storage: • 1.4 Ammunition• Water Barriers• Soil Barriers

MA03 Slide 24

Quick Confirmatory Test

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Questions

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