shortening lng storage tank construction period by the ... tateishi... · shortening lng storage...

Shortening LNG Storage Tank Construction Period

by the Jack Climbing Method®

Copyright © 2017 IHI Corporation All Rights Reserved.

Gastech2017 -Technical sessions-

Stream 3: Gas & LNG Storage & Containment – Onshore Tanks

Tank Project Dept.

Field Engineering Manager, Hirotsugu TATEISHI

IHI Corporation

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Social Infrastructure and Offshore Facilities(Bridge, Transportation System, Security, etc.)

Aero Engines and Space (Jet Engine, Rocket)

General-Purpose Machinery(Compressor, Separator, Turbo charger, etc.)

Industrial Systems(Steel Manufacturing Furnaces, Heat/Surface Treatment

Equipment, Logistics Systems, Material Handling Equipment, etc.)

Resources, Energy and and Environment(Boiler, Gas Turbine/Gas Engine, LNG Terminal, Process Plant, Nuclear Eqipment, etc.)

Resources,

Energy and

Environment

Aero Engines

and Space

Industrial Systems

and

General-Purpose

Machinery

Social

Infrastructure

and

Offshore Facilities

Construction Period of LNG Receiving Terminal

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Tank Civil

Terminal Civil

Tank Mechanical

Terminal Mechanical

Start of Construction Ready for Cool Down

1st year 2nd year 3rd year 4th year

Structure of Double Roof Type Tank

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OUTER ROOF

INNER ROOF

KNUCKLE PLATE

BOTTOM INSULATION

INNER BOTTOM PLATE

BOTTOM LINER PLATE

ROOF STRUCTURE / PIPING

PC WALL

BASE SLAB

INNER SHELL PLATE

OUTER SHELL LINER PLATE

SHELL INSULATION

Structure of Deck Type Tank

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SUSPENDED DECK / INSULATION

OUTER ROOF

CONCRETE ROOF

INNER SHELL PLATE

OUTER SHELL LINER PLATE

SHELL INSULATION

BOTTOM INSULATION

INNER BOTTOM PLATE

ROOF STRUCTURE / PIPING

PC WALL

BOTTOM LINER PLATE

BASE SLAB

Conventional Tank Construction Method #1

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PC WALL

KNUCKLE PLATE INNER ROOF

OUTER ROOF

AIR RAISING OUTER ROOF

BASE SLAB

INNER SHELL PLATE

OUTER SHELL LINER PLATE

Outer Tank Air Rising Method

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Pros and Cons of Outer Tank Air Rising Method

Pros

Less weather interruption / damage

（Higher quality construction）

Cons

Longer construction period

Higher risk of accident

Outer Tank Air Rising Method

Conventional Tank Construction Method #2

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PC WALL

BASE SLAB

KNUCKLE PLATE

INNER ROOF

OUTER ROOF

OUTER SHELL LINER PLATE

INNER SHELL PLATE

OUTER ROOF

AIR RAISING

Inner Tank Air Rising Method

Pros and Cons of Inner Tank Air Rising Method

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Pros

Shorter construction period

Cons

More weather interruption / damage

Higher risk of accident

Inner Tank Air Rising Method

Overview of JCM

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JCM realizes…

Simultaneous construction of PC wall and inner shell plate

Minimum aerial / lifting work

Shorter construction period

Higher level of safety / efficiency / quality

Significant features of JCM

JCM Sequence for Double Roof Type Tank

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1 2 3 4

5 6 7 8

JCM Sequence for Double Roof Type Tank

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9 10 11 12

13 14 15

Effect of JCM for Double Roof Type Tank

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Base Slab

PC Wall

Bottom Insulation/Inner Bottom Plate

Inner Shell Plate

Outer Shell Liner

InnerRoof

Test

Shell Insulation

OuterRoof

1st J/U Final J/D

Roof Structure/Piping

Base Slab

PC Wall

Test

Inner Roof/Outer Roof

Inner Shell Plate

Bottom Insulation/Inner Bottom Plate

Shell InsulationRoof A/R

Outer Shell Liner

Roof Structure/Piping

About 9 months

WORK FLOOR

WELDER

INSPECTOR

WORK FLOOR

INNER SHELL PLATE

Fitting / Welding / Inspection Jack Up

JCM

Outer Tank Air Rising Method Inner shell plate construction

Quick summary- Double Roof Type Tank and Deck Type Tank

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INNER SHELL PLATE

INNER ROOF

OUTER ROOF

（METALLIC）

SUSPENDED DECK

CONCRETE ROOF

INNER SHELL PLATE

OUTER ROOF

（METALLIC）

Double Roof Type Deck Type

JCM Sequence for Deck Type Tank

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1 2 3 4

5 6 7 8

JCM Sequence for Deck Type Tank

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9 10 11 12

13 14 15

Effect of JCM for Deck Type Tank

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Base Slab

PC Wall

Outer Shell Liner

OuterRoof

BottomInsulation

Inner Shell Plate

※For Annular Part

Roof A/R

RoofConc.

Roof Structure/Piping

Test

Bottom Insulation/Inner Bottom Plate

Shell Insulation

Base Slab

Outer Shell Liner

PC Wall

OuterRoof

BottomInsulation

Inner Shell Plate

※For Annular Part

1st Roof J/UFinal Roof J/U

RoofConc.

Roof Structure/Piping

Bottom Insulation/Inner Bottom Plate

Test

Shell Insulation

About 6 months

Outer Tank Air Rising Method

JCM

Experience #1 (Shin-Sendai Project)

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Experience #2 (Soma Project)

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Overall Summary

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What can JCM realize?

• Shorter construction period

• High level of safety / efficiency / quality

This is an ideal method for constructing LNG tanks!