Jetty

 

JETTY A jetty is a structure that projects from the land out into water.

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It facilitates unloading and forwarding of

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fuel and other utilities transported by marine liners liners to an inland power plant.

 

FEASIBILITY REPORT STAGE •

Understanding Unders tanding the project requirements

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Assessment of preliminary survey data  –

Bathymetric survey

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Topographic sur survey vey of land land a area rea

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Marine and land geo-technical investigation investigation

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Wave, tide and current data

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Evolving Ev olving a conceptual design

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Finalizing the Port layout

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Evaluating suitable design Evaluating d esign and construction methodology.

 

DETAILED PROJECT REPORT STAGE • Review

of the existing reports prepared by other agencies on the project.

• Review of various Surveys and Investigation Reports prepared by other agencies. • Carry out additiona additionall sur surveys, veys, if any. any. • Carry out preliminary vessel size analysis and traffic analysis. [Contd…]

 

DETAILED PROJECT REPORT STAGE • Conduct Mathematical Model Studies – for Wave tranquillity to finalize finalize the layout. • Shore line evaluation. • Assess facility requirements and coal handling equipment, equipmen t, conv conveyor eyor sy syste stem m and their their design cap capabilit abilities ies along wit with h project proj ect me mechan chanical ical engineer. [Contd…]

 

DETAILED PROJECT REPORT STAGE • Depending on the location, environmental environmental features features and other requirements requir ements prepare prepare various possible alternate alternate layouts for the location of coal jetty. • Preliminary engineering design for pipe conveyor conveyor system, system, shore unloader, unloader, jetty jetty and approach, operation operation and maintenance along with pr project oject mechanical engineer. engineer. • Preliminary engineering design of electrical/instrumenta electrical/instrumentation tion and control facilities along with project electrical / instrumentation engine engineer er.. [Contd…]

 

DETAILED PROJECT REPORT STAGE • Study envir environmental onmental aspects through review of existi exi sting ng reports and prepar prepare e emergency emergency evacuati evacuation on plan along with saf safety engin engineer eer.. • Prepare cost estimate and project implementation schedule. • Prepare and Submit Draft/Final Detailed Project Report.

 

DETAILE DET AILED D ENGINEE ENGINEERING RING STAGE STAGE Design Criteria: Geometry Data •

Length, width, height above chart datum based on maximum •

water level level including surge condition and free board.

Environmental Data  –

Tidal Data •

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Spring tide Neap tide Mean sea level Highest High water level Lowest Low water level

[Contd…]

 

DETAILE DET AILED D ENGINEE ENGINEERING RING STAGE STAGE •

Environmental Data  –

Wave & Current •

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Wave height & Period  –

Normal condition

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Extreme condition

Current speed

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Marine Growth Cyclone Data

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Tsunami. [Contd…]

 

DETAILE DET AILED D ENGINE ENGINEERING ERING STAGE STAGE •

Load Data:  –  –

Dead Live •

For berth  –  –

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For approach bridge  –

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Stacking load Vehicle load » IRC loading Equipment load » Grab type continuous shore unloader » Conveyor columns

Vehicle load » IRC loading Conveyor or columns » Convey

Wind Temperature & Shr Shrinkage inkage Seismic

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Berthing Mooring forces forces. [Contd…]

 

DETAILED DET AILED ENG ENGINEE INEERING RING STAGE STAGE •

Material  –

Concrete •

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Steel reinforcement •

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Based on codes

Super structure  –

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Design life is to be planned based on frequency of inspection and repair works

Deflection/Crack width  –

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Low relaxation grade steel

Life of structure  –

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Corrosion resistant steel

Pre stressing tendons •

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Grade M35/M40 with Slag cement

combination of precast/pre-stress precast/pre-stressed ed and cast-in-situ structures

Foundation  –  –  –

Well foundation Caisson Piles