7th week of internship

This week, I had assisted Ahmad Shahir (field engineer) to complete the procedure for concrete collar installation. I helped him to do the engineering drawing using the engineering software (AUTOCAD 2007). I had learned a lot to familiarize with the software even though I had learned the basic of AUTOCAD during my study in UNITEN.

Below are some of my job done;



This is the concrete collar operation approach that will be implemented in OMBAK project.
The left hand side is the diagram of the barge. The position is as in the drawing. The right hand side is the vessel functioned same as the barge but in the shallow water area.




As above picture, the top one is the installation that will be done by the vessel in the shallow area. The concrete collar will be lifted by the crane from the vessel towards the desired position on the pipeline. The bottom of it is the installation done by the barge. The procedure is the same as the vessel but work done in the water depth more than 1 meter.




This is water jetting method. This method will be implemented towards the buried pipeline to expose the pipeline for the concrete collar installation. The water jet will blow high pressure water to the seabed to expose the pipeline and remove the soils.



Above is the method to measure the spacing of the concrete collar using the 1.5 metres steel bar. the spacing need to achieve 3 meters space between the concrete collar so, the diver need to dummy the steel bar twice on the pipeline to obtain the required space length. Finally, the point will be mark by the floating buoy for the reference point to lower down the concrete collar towards the crews on the vessel.






This is the method to use to lift the concrete collar. The crane hook will be attached by the soft-eye both end sling that had been tied to the shackle. Shackle will be clamp towards the pfeifer quicklift on the concrete collar before lifting.