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
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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
Copyright © 2017 IHI Corporation All Rights Reserved.
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
Copyright © 2017 IHI Corporation All Rights Reserved.
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
Copyright © 2017 IHI Corporation All Rights Reserved.
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
Copyright © 2017 IHI Corporation All Rights Reserved.
Pros
Shorter construction period
Cons
More weather interruption / damage
Higher risk of accident
Inner Tank Air Rising Method
Overview of JCM
Copyright © 2017 IHI Corporation All Rights Reserved.
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
Copyright © 2017 IHI Corporation All Rights Reserved.
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
Copyright © 2017 IHI Corporation All Rights Reserved.
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
Copyright © 2017 IHI Corporation All Rights Reserved.
1 2 3 4
5 6 7 8
JCM Sequence for Deck Type Tank
Copyright © 2017 IHI Corporation All Rights Reserved.
9 10 11 12
13 14 15
Effect of JCM for Deck Type Tank
Copyright © 2017 IHI Corporation All Rights Reserved.
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)
Copyright © 2017 IHI Corporation All Rights Reserved.
Overall Summary
Copyright © 2017 IHI Corporation All Rights Reserved.
What can JCM realize?
• Shorter construction period
• High level of safety / efficiency / quality
This is an ideal method for constructing LNG tanks!
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