Silt Fence Installation Kody R. Featherston Candice L. Johnson J. - - PowerPoint PPT Presentation

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Silt Fence Installation Kody R. Featherston Candice L. Johnson J. - - PowerPoint PPT Presentation

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Silt Fence Installation Kody R. Featherston Candice L. Johnson J. Kent Evatt Monica L. Johnston BAE 4022 Spring 2004 WHAT IS SILT FENCE? A silt fence is a temporary sediment barrier consisting of filter fabric entrenched into the soil

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SLIDE 1

Silt Fence Installation

Kody R. Featherston Candice L. Johnson

  • J. Kent Evatt

Monica L. Johnston BAE 4022 – Spring 2004

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SLIDE 2

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

WHAT IS SILT FENCE?

  • A silt fence is a temporary sediment barrier

consisting of filter fabric entrenched into the soil and attached to supporting posts.

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SLIDE 3

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROBLEM DEFINITION

  • Common failures are caused by:

– Improper Installation – Incorrect Location – Inadequate Strength

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SLIDE 4

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FAESF

  • Failure Avoidance and Effective Silt Fence

Technology

– control undercutting and overtopping – control lateral flow along the silt fence – improve the trapping of fine silts and clays – provide adequate strength posts and fence – provide for adequate bearing capacity of post footings

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SLIDE 5

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

STATEMENT OF WORK

  • Enviro-Mech will focus on reducing

failure due to improper installation.

  • Dr. Barfield’s team will continue

developing a new filter fence material configuration and support mechanism.

  • Enviro-Mech will design and build a

machine which will create a trench, lay the fence, and backfill the trench.

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SLIDE 6

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

INVESTIGATION

  • Recommended Silt Fence Practices
  • Current Equipment Patented

and in Production

  • Similar Vibratory Plow Applications
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SLIDE 7

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

RECOMMENDED PRACTICES

  • Information Concerns

– Trench Dimensions – Fence Location – Post Height – Fence Size

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SLIDE 8

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

CURRENT EQUIPMENT

  • Tommy Silt Fence

Machine

  • Erosion Runner
  • ImpleMax SF12c
  • McCormick

Equipment

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SLIDE 9

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

VIBRATORY PLOW

  • Cable Installation

Blades

– Integrated Slot – Four Bar Linkage

Groove

  • n Back

Edge of Blade Cable Guide Hook to Secure Guide Upper Latch

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SLIDE 10

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

CONCEPT DEVELOPMENT

  • Design Criteria

– FAESF Research Group – Charles Machine Works

  • Potential Solutions

– Proposal A - Two-Disk Method – Proposal B - Feed Channel Method – Proposal C - Tension Rod Method

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SLIDE 11

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

DESIGN CRITERIA

  • FAESF Proposed Design
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SLIDE 12

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

DESIGN CRITERIA

  • Design compatible with current power source

provided by Charles Machine Works

  • Economical
  • Marketable
  • Safe
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SLIDE 13

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

INSTALLATION METHODS

  • Proposal A - Two-Disk Method
  • Proposal B - Feed Channel Method
  • Proposal C - Tension Rod Method
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SLIDE 14

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROPOSAL A TWO-DISK METHOD

  • Two narrow disks

pinch the fabric.

  • The disks feed the

fabric into the slot.

  • Fabric is released

at the bottom of the slot.

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SLIDE 15

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROPOSAL B FEED CHANNEL METHOD

  • Channel will be

attached similar to four-bar linkage currently used.

  • The fence will require

added bulk to bottom edge.

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SLIDE 16

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROPOSAL C TENSION ROD METHOD

  • Spring loaded rod

will guide material through slot.

  • The end of the

rod acts as a pressure point.

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SLIDE 17

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

TEST AND ANALYSIS

  • Testing was required to determine the most

effective and financially feasible solution. – Methods Testing – Concept Testing – Final Design Testing

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SLIDE 18

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

METHODS TESTING

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SLIDE 19

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

CONCEPT TESTING

  • Max lift capacity
  • f machine
  • Extensions and

Tubular Frame to attach test components

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SLIDE 20

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

COLLECTING LOAD DATA

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SLIDE 21

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

SHEILD DESIGN

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SLIDE 22

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

LOAD DATA

25 50 75 100 125 5 10 15 20 25

Time (sec) Force (lbs)

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SLIDE 23

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FRAME DESIGN

  • Parallel Frame

Rails

  • Over the Top
  • Wrap Around
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SLIDE 24

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FABRIC ROLL LOCATION

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SLIDE 25

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PACKING WHEEL DESIGN

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BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FINAL DESIGN TESTING

  • Issues Discovered

– Soil Packing Against Tension Rod Inside Shield – Wind Unrolling Fabric Faster than Installed

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SLIDE 27

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FINAL DESIGN TESTING

  • Forces for

removal measured

Soil Condition Force (lb) Bare, Unpacked 15 Bare, Packed 50 Grass, Unpacked 40 Grass, Packed > 50

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SLIDE 28

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FINAL DESIGN TESTING

  • Surfaces

– Grass – Bare Soil

  • Paths

– Straight – Curved

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SLIDE 29

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FINAL DESIGN TESTING

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BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FINAL DESIGN

  • Frame

– Main Frame – Sub Frame

  • Components

– Shield – Tension Rod – Fabric Tension Arm – Packing Wheels

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SLIDE 31

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

MAIN FRAME

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BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PIVOT

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BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

SUB FRAME

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BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

SHIELD

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BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

TENSION ROD

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SLIDE 36

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FABRIC TENSION ARM

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SLIDE 37

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PACKING WHEELS

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SLIDE 38

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

SAFETY

  • Rounded

Corners

  • Clearly Labeled

Pinch Points

  • Spring Pins
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SLIDE 39

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

MANUALS

  • Operators Manual
  • Parts Manual
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SLIDE 40

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROJECT SCHEDULE

Fall Semester Accomplishments

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SLIDE 41

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROJECT SCHEDULE

Spring Semester Accomplishments

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SLIDE 42

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROTOTYPE EXPENSES

$304 $204 Fabrication Cost $689 $744 Total Cost $540 Projected Budget $385 Actual Cost Material Cost

$55 Under Budget

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SLIDE 43

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

ESTIMATED MANUFACTUING COST

Direct Material Labor and Overhead Total OSU Silt Fence Installer $110 $350 $460

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SLIDE 44

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

COMPETITIVE COMPARISON

$7177 Tommy Silt Fence Machine $6400 OSU Silt Fence Installer and Vibratory Plow $11795 ImpleMax SF12c $4925 McCormick Silt Fence Installer Retail Price Estimated Retail of $1150

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SLIDE 45

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

CONCLUSION

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SLIDE 46

BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

THANK YOU

  • Richard Sharp -

Project Engineer

  • Kelvin Self -

Manager R & D

  • Dr. Billy Barfield -

FAESF Research Group

  • Dr. Ellen Stevens -

FAESF Research Group

  • Wayne Kiner -

BAE Laboratory Manager

  • Dr. Paul Weckler -

Senior Design Instructor

  • Dr. Ron Elliot -

BAE Department Head

Enviro-Mech would like to thank those who have contributed to our Senior Design Project.

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SLIDE 47

Questions