Arade River Archaeological Complex: Dredges and 1 Archaeology
Dredges & Barges. Dredges Used in different mining applications Sand & gravel are most commonly...
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Transcript of Dredges & Barges. Dredges Used in different mining applications Sand & gravel are most commonly...
![Page 1: Dredges & Barges. Dredges Used in different mining applications Sand & gravel are most commonly dredged materials Other minerals also mined with.](https://reader035.fdocuments.in/reader035/viewer/2022062408/56649e995503460f94b9c481/html5/thumbnails/1.jpg)
Dredges
& Barges
Dredges
& Barges
![Page 2: Dredges & Barges. Dredges Used in different mining applications Sand & gravel are most commonly dredged materials Other minerals also mined with.](https://reader035.fdocuments.in/reader035/viewer/2022062408/56649e995503460f94b9c481/html5/thumbnails/2.jpg)
DredgesDredges
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DredgesDredgesUsed in different mining
applicationsSand & gravel are most
commonly dredged materialsOther minerals also mined with
dredges
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Dredge TypesDredge TypesSuction pumpsWith or without cutter headsClamshells & draglinesBucket ladders
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![Page 6: Dredges & Barges. Dredges Used in different mining applications Sand & gravel are most commonly dredged materials Other minerals also mined with.](https://reader035.fdocuments.in/reader035/viewer/2022062408/56649e995503460f94b9c481/html5/thumbnails/6.jpg)
Mining MethodsMining MethodsSuction material as slurry into
pipe beneath waterSlurry passes through pipe,
separated from water & transported to shore by various methods
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Mining MethodsMining MethodsClamshells & draglines scoop
material & load on belt or barge
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Dredge HazardsDredge HazardsDrowningSlips & fallsElectrocutionHigh pressure pumps & pipesWelding & cuttingMaterials handlingPinch points
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Remove Trip HazardsRemove Trip Hazards
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Electrical Hazards Around Water
Electrical Hazards Around Water
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Material LoadingMaterial Loading
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Material LoadingMaterial LoadingEspecially careful when loading
materials.Never go under suspended
loads
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Other HazardsOther HazardsCablesHigh windsLightningFogExcessive noise
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Hearing ProtectionHearing Protection
Diesel Engines
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PPEPPELife jacketsSteel-toed boots with slip-
resistant solesSafety glasses or goggles Hard hat
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Stored & MaintainedStored & Maintained
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HardhatsHardhats
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HardhatsHardhatsRequired for everyone on
board If you don’t have it on, it’s
unlikely you will go get it when needed
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DrowningDrowningAccount for majority of dredge
fatalities
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Life JacketsLife Jackets
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Life JacketsLife JacketsWear at all times while working
on or around small boats, barges, dredges & tugboats
Jackets that keep head above water preferred
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Slip & Trip HazardsSlip & Trip Hazardsmany slip & trip hazards Most serious is being caught
between barge, dock or processing plant
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Trip HazardsTrip HazardsOil, grease, water, ice, loose
sand & gravelCables & unsecured linesGood housekeeping reduces
danger
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Electricity & WaterElectricity & WaterCareful around electrical
installations on dredgesProvide & maintain insulation &
groundingLockout
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Power CablesPower CablesFloating cables & power cables
carried on pipelines properly insulated & protected
Mechanical bonding & grounding maintained
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Electrical SafetyElectrical SafetyDredges with on board power
plants differ from those with shore power because vessels’ hull used as neutral or ground return
Employee unfamiliar with marine electrical circuitry not allowed to work equipment
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Light Bulbs GuardedLight Bulbs Guarded
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Electrical SafetyElectrical SafetyWeatherproof lamp socketsTemporary lights guarded, with
heavy duty cords & grounded
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Pipes & PumpsPipes & PumpsHigh pressure pipes & pumps
isolated & bled before any work performed
System secured, blinded, locked & tagged until work completed
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Welding & CuttingWelding & CuttingPay particular attention to
surroundingsWelded objects tested to
determine if water, flammable liquids or vapors present
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Moving Heavy ObjectsMoving Heavy Objects
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Moving Heavy ObjectsMoving Heavy ObjectsUse hoists or get help to
handle heavy objectsRigging contains pinch points
& done by experienced people
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Wire RopeWire Rope
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Wire RopeWire RopeBroken cables can whip or
backlash violently
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Inspect Wire RopeInspect Wire Rope
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Inspect Wire RopeInspect Wire Rope
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Guard Drum & SheaveGuard Drum & Sheave
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Dredge FiresDredge Fires
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Dredge FiresDredge FiresExtremely dangerousGood housekeepingKeep oil, grease, waste rags,
flammables & combustibles in covered containers away from ignition sources
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Fire PreventionFire PreventionStore paints, thinners &
solvents in fire cabinetsCheck for fire after welding &
cutting
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Fire ExtinguishersFire Extinguishers Inspected & readily available.Trained in fire suppression
techniques
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WeatherWeatherHigh winds & lightningStop work & go ashoreCreate unstable work platforms Fog & visibility
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Wear Life JacketWear Life Jacket
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Rescue Equipment Maintained & Accessible
Rescue Equipment Maintained & Accessible
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Working AloneWorking Alone
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Working AloneWorking AloneNot work alone in hazardous
areas unless they can communicate, be seen or heard by others
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BargesBarges
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HazardsHazardsDrowningFalling overboardSlips & fallsCrushed between barge &
dredge, dock or floating plant
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PPEPPELife jacketsSteel-toed boots with slip
resistant solesSafety glasses or gogglesHardhat
![Page 50: Dredges & Barges. Dredges Used in different mining applications Sand & gravel are most commonly dredged materials Other minerals also mined with.](https://reader035.fdocuments.in/reader035/viewer/2022062408/56649e995503460f94b9c481/html5/thumbnails/50.jpg)
Slips & FallsSlips & Falls
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Trips & FallsTrips & Falls
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CablesCablesPay attention around lines &
cables under tension – they can break
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Loading HazardsLoading HazardsSlips & fallsRope burns from being caught
in linesCrushed between barge &
dredgeDrowningCaught in conveyor
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Unloading hazardsUnloading hazardsUnloading equipment has
pinch points & blind spotsStay out of machine swing
radiusFalling material
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Tow BoatsTow Boats
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Tow Boat HazardsTow Boat HazardsSlips & fallsRope burns from being caught
in linesCrushed between boat & bargeDrowningExcessive noise