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

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 and attached to supporting posts. 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 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 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. 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 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 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 BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

VIBRATORY PLOW • Cable Installation Upper Blades Latch – Integrated Slot – Four Bar Linkage Hook to Secure Guide Cable Guide Groove on Back Edge of Blade 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 BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

DESIGN CRITERIA • FAESF Proposed Design 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 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 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. 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. 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. 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 BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

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

CONCEPT TESTING • Max lift capacity of machine • Extensions and Tubular Frame to attach test components BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

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

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

LOAD DATA 125 100 Force (lbs) 75 50 25 0 0 5 10 15 20 25 Time (sec) BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FRAME DESIGN • Parallel Frame Rails • Over the Top • Wrap Around BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

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

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

FINAL DESIGN TESTING • Forces for removal measured Soil Force Condition (lb) Bare, Unpacked 15 Bare, Packed 50 Grass, Unpacked 40 Grass, Packed > 50 BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

FINAL DESIGN TESTING • Surfaces – Grass – Bare Soil • Paths – Straight – Curved BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

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

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

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

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

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

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

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

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

SAFETY • Rounded Corners • Clearly Labeled Pinch Points • Spring Pins BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

MANUALS • Operators Manual • Parts Manual BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROJECT SCHEDULE Fall Semester Accomplishments BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROJECT SCHEDULE Spring Semester Accomplishments BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

PROTOTYPE EXPENSES Material Fabrication Total Cost Cost Cost Projected $540 $204 $744 Budget Actual $385 $304 $689 Cost $55 Under Budget BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt

ESTIMATED MANUFACTUING COST Direct Labor and Total Material Overhead OSU Silt Fence $110 $350 $460 Installer BAE 4022 – Spring 2004 K. Featherston, C. Johnson, M. Johnston, J.K. Evatt