Repair of Warped/Distorted Slide Plate on Dummy Leg

1.0 PURPOSE
2.0 SCOPE
3.0 APPLICABLE DOCUMENTS
4.0 MANPOWER
5.0 TOOLS  AND EQUIPMENTS
6.0 METHOD/PROCEDURES
7.0 QUALITY  CONTROL
8.0 SAFETY  PRECAUTIONS
9.0 ATTACHMENT

Repair of Warped/Distorted Slide Plate on Dummy Leg

1.0    PURPOSE

This method statement provides the specific guidelines  and methodology to carry out the Repair of Warped/Distorted Slide Plate on Dummy Leg at Plants and Refinery Projects.

2.0   SCOPE

2.1 This method statement covers the general activities to be performed in the Repair of Warped/Distorted Slide Plate on Dummy Leg. The work covers the following activities:

  1. Material Preparation.
  2. Heating.
  3. Non Destructive Examination.

2.2   Separate  procedure or method statement  is  required for correction of excessive  warpage that exceeds ASTM A/A6M* criteria.

3.0   APPLICABLE  DOCUMENTS

3.1    Saudi ARAMCO Project Specification and Standards

3.1.1 SAES-W-011 Welding Requirement for On-plot Piping
3.1.2 12-SAMSS-007 Fabrication of Structural and Miscellaneous Steel
3.1.3 12-SAMSS-008 Erection of Structural and Miscellaneous Steel
3.1.4 Schedule Q Project Quality Requirements

3.1.5     Saudi ARAMCO Construction Safety Manual

3.2   Codes and Standards

3.2.1  AWS D1.1  Structural Steel

3.3    Inspection and Test Plan

3.3.1  SATIP-M-001-01,Structural Steel for Pipe rack, Steel supports & Miscellaneous, i.e. steel structure repair.

4.0   MANPOWER

4.1    Section  Manager  shall be the over-all responsible  for the implementation of this method statement and for all the task and functions concerning construction activities.

4.2   Safety Officer shall ensure that all works to be carried out should meet the Project’s Health, Safety,  Environment (HSE) and Security standard.

4.3   QC Inspector  shall be responsible  of the inspection  of the work  in  accordance  to Saudi ARAMCO Project Standards and Specification.

4.4   Welding  Supervisor  &  Foreman shall directly  control, organizing  and planning the repair activities.  Responsible  at site for  the  implementation  and  compliance  with  the  method statement. Manpower shall be the following but not limited to as listed below.

  1. Helper/Fire Watcher
  2. Structural  Fitter
  3. Quality Control  Engineer/Inspector
  4. Safety Officer.

5.0   TOOLS AND EQUIPMENTS

5.1 Tools shall include but not limited to as follows:

  1. Clamps (long arm).
  2. Oxy fuel torch.

6.0       METHODS / PROCEDURES

6.1       Preparatory Works

6.1.1    Secure work permit from JGC/Daewoo prior to start of the activity.

6.1.2   Prepare all materials, tools & equipment and manpower needed for the job.

6.2      Heating

6.2.1   Apply heat using the oxy-fuel  torch on the warped portion of the slide plate.  Refer to Illustration A below.

6.2.2   Maintain  the  heat  throughout  the  affected  portion  not  higher  than 250 °C until the heat is uniformly distributed.

6.2.3   Removed the oxy-fuel torch and proceed to Illustration B below.

6.2.2   Maintain  the  heat  throughout  the  affected  portion  not  higher  than 250 °C until the heat is uniformly distributed.

6.2.3   Removed the oxy-fuel torch and proceed to Illustration B below.

9.0   ATTACHMENT

9. 1 Attachment 1    Job Safety Assessment

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