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Workshop Quay WallsIHE - Delft

April - 2007C.N. van Schaik

Jetty types - Pro and Con of the different types

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Contents

Layout types with examples

Elements of J etties

Layout choices Mooring layouts

Loads on J etties

Foundation types Deck structures

Mooring

Berthing Fender systems

Other elements

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Layout types

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Types of Jetties

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Elements of Jetties

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Nerefco L-Jetty

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Jetty Oiltanking - 4 berths

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Jetty for Grain LNG

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Two fingerpiers Q-8

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Ship repair RUS

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Jetty HSS

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Ferry terminal P&O NSF

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Cruise terminal Grenada

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Layout choices

Functional requirements

Existing situation

Waves and currents

Dredging

Cost

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Escape routes - principle

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Escape routes ideal situation

WALZIJ DE

T-Steiger

VluchtwegVluchtweg

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Emergency escape - Difficult situations

WALZIJ DEWALZIJ DE

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Secundary escape for LNG Jetty

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Example Exxon LPG

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Mooring layouts I BS 6349

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Mooring layouts II - BS 6349

A Environmental B Imposed loads

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Loads on Jetties

A. Environmental B. Imposed loads

wind piping

waves traffic

current loading arms

ice gangways

earthquakes fire monitors

other installations

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Installations

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Pre-assembled Unit piping 160 tonnes

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Exposed Jetties - wave slamming

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Foundation types

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Vertical and raker pile foundations

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Example raker piles

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Example raker piles II

Example with raker piles

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Working stress design vs load factor design

p p

V-rep = 1000 kN and Hrep = 300 kN

A. Working stress overall SF = 2.5

Nd,c = 2850 Nd,t= -250

B. Load factor design, load factors 1.5 and 0.9,

mat.factor on soil 1.5 Nd,c = 2565 Nd,t= -690

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Rock anchor

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Execution of rock anchor

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Drilling rig

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Drilling dolphin pile and bits

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Super structure

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Precast deck elements I

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Precast deck elements II

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Precast beams Jetty deck

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Precast deck configuration

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Finalysed deck of Jetty Head

Determination of loads

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Mooring

BS 6340 - part 4

EAU

OCIMF - SIGGTO

Mooring analysis

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Mooring dolphin - monopile

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Berthing energy

E M v C C C Cm e s c= 0 5, * * * * * *

RK

KCe

+

22

22

+

=

Bx

LR

bp

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Berthing speed

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Berthing on dolphins

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Pitch of fenders

+

B

LB

R

OA

B 82

2

2

1

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FENDER systems

Conventional-non energy absorbing

systems

Materials

- tropical hard wood

- artifical materials (regenerated plastics)

- wood or steel covered with pads

Rubber- energy absorbing fenders

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Conventional wooden fendering on quay

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Cylindrical fender

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Berthing beam

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Cone fenders

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Element fenders with panel

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Fast ferries

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Parallel motion system

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Multi pile and monopile breasting dolphin

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Monopile dolphin with small fenders and wood

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Breasting dolphins with fenders

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LNG - Impounding basin

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Construction types of Catwalks

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Tubular Catwalk

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Sea shield for jetty pile