lesson learnt from transportation and lifting operation of nautica muar heavy structure

7/25/2019 Lesson Learnt From Transportation and Lifting Operation of Nautica Muar Heavy Structure

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Prepared by

Muhammad Shafif bin Mohd Saleh


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Introduction Transportation and lifting study is essential element to ensure safe

handling of properties throughout the operation

Critical lesson learnt during KMSE transportation and lifting campaignare transportation of EWT and lifting of the flare tower.

Lesson learnt will highlight the processes involved during theengineering stage and the load out/lifting operation.


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Scope of work

Transportation of EWT module

Lifting and installation of f lare tower


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EWT transportation The EWT transportation commence from Westport

Fabrication Yard and transported to West Port Jetty byMulti Axle Trailer.

At the West Port wharf/jetty 2 units mobile crane wasused for lifting complete with lifting gears according tolifting plans

The transport route leads from Port Klang through theStreet of Malacca towards MMHE jetty at Pasir

Gudang.


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Cargo description

PRINCIPAL

DIMENSION

LENGTH = 9.105 MBREADTH = 8.307 MHEIGHT = 9.948 MWEIGHT = 100 TON


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Vessel and Barge Detail Barge : MUHIBBAH B29

Year Built : 2007

Length Overall : 54.869m (180ft)

Breadth (Moulded) : 15.24m (50ft)

Depth (Moulded) : 3.048m (10ft)

Design draught : 2.86m

Deadweight : 1634.952 t

Lightship : 330.10 tons

Deck loading : 15 t/m

Tug Boat : TROPICAL EAGLE Year Built : 1987

Length Overall : 25.5m

Breadth (Moulded) : 8.1m

Depth (Moulded) : 4m

GRT : 209

NRT : 63

Flag : Singapore Class : BV

BHP : 2 x 962 KW


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COG (option 1)


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Barge Muhibbah B29: Arrangement


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Advantages

1. Less piping work at MMHE

2. Transport EWT in its complete form

Disadvantages

1. High COG will reduce stability of the barge

2. Fabricate foundation for transportation not economic


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COG (option2)


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Barge Muhibbah B29: Arrangement


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Advantages

1. Easy and safe handling

2. Low COG result on better stability of the barge

Disadvantages

1. Extra piping work at MMHE


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Transportation EWTWhat was supposed to happen?

Transportation of EWT module from fabrication yard to Westportshall take 1 hour


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What actually happen?

Transport to Westport delayed for 2 days

Cometto breakdown due to hydraulic failure

EWT width wrongly measured by transporter.


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What can we learn from this?

1. Route survey shall be done as per actual dimension

2. Ensure transporter prepare spare parts for theirequipment along the operation.

3. Selection of fabrication yard must consider thelocation of the fabrication yard to the means oftransportation


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Lifting flare tower

The lifting of flare tower had been executed at in frontof DD1 and DD2 area with 1 no. of Floating Crane and 1supporting crane (by MMHE).

The installation of flare tower had been executed at

quay8 with 1 no. of Floating Crane Engineering of Lift Concepts to its final installation

location.


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Cargo description

PRINCIPAL

DIMENSION

LENGTH = 55.00 MBREADTH = 10.156MHEIGHT = 8.4M

WEIGHT = 83.32 TON


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Crane

Crane 1 : POE Giant 6 Offshore Floating Crane, 500MTwith 70.104 m. boom length (Aux. hook).

Crane 2 : Supporting Crane (MMHE proposed use LLC

No 3 for supporting Crane)


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Lifting sequence


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Lifting of f lare towerWhat was supposed to happen?

Flare tip installed before lifting operation Flare tower padeye supposed to be install at fabrication yard Lifting from transporter barge supposed to be done in front of DD1 and

DD2 Lifting commence once flare tower arrive at MMHE

What actually happen?

Flare tip installed after lifting operation

Lifting padeye fabricated at MMHE

Initial lifting had been execute inside DD2

Lifting campaign delay for 2 weeks


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What can we learn from this?

1. Install f lare tip after completion of installation of f laretower to ease lifting operation

2. Use crane that able to turn 360 to avoid space limit

3. Reduce crane radius as much as possible to maximize

crane capacity4. Ensure no additional steel work on the module after load

out from fabrication yard

5. Load out from fabrication yard shall synchronize withlifting campaign perfectly


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THANK YOU

lesson learnt from transportation and lifting operation of nautica muar heavy structure

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