After almost 50 years of delivering impeccable service within the Demolition and Dismantling industry including crane disposal. O’Brien Demolition has made the decision to further its services within the crane and port sector.
The natural progression was to create a company dedicated to providing specialist services. O’Brien Specialist Crane Services have taken the knowledge and experience acquired from the many successful projects delivered to further develop within this sector.
Due to client demand we felt it was time to offer more services which include asset relocation, consultancy and sales in addition to the services already offered such as disposal, heavy lift and disaster response.
Rest assured that we will continue to strive for excellence and professionalism when delivering all projects, and that these will be managed and executed with the same high standard as expected.
The scope of works included:
• The Controlled Collapse of a Ship to Shore Crane
O’Brien’s were approached by the TPS engineering department and were tasked to come up with a solution for the removal of crane no.1. The crane in question was to be removed to make way for newer bigger cranes to serve the biggest of modern container vessels. Due to the geographical location of TPSV, the port operates in a relatively small area meaning every square metre of space is utilised for container storage. This posed a logistical challenge to both the Demolition team and TPSV to find a solution which would take up as little room as possible to reduce the impact on port operations.
Many different options and methods were considered during the planning stages of the project. After many calculations and discussions with the port operators, O’Brien’s opted for a controlled collapse. This was chosen over the other options as it would require less of the operational area and also could be completed in a shorter space of time.
TPSV had identified an area in which the project could take place without causing major disruption to the port, however, the area had a number of obstacles to take into account these included, a neighbouring operation naval base, maintenance workshops, lighting and communication towers and REEFER container gantries. The Demolition team carried out many calculations to come up with a design of cuts which allowed the 900ton 90-metre tall crane to be controlled and collapsed within 10 metres of an existing building and 8 metres of an existing lighting tower with perfect accuracy to the delight of TPSV and the neighbouring naval base. As part of the work, O’Brien’s put in place protection to ensure no damage was caused to the quay deck during the collapse.
The O’Brien’s team carried out all aspects of this project including;
• Initial site survey & calculations
• Provision of a ground impact study
• Provision of risk analysis
• Implementation of environmental control measures
• Design of unique pre weakening operation
• Design & installation of quay deck protection
• The controlled collapse
• Planning, supervision and execution of all works
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info@obrienscs.com
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The scope of works included:
• The Controlled Collapse of a Ship to Shore Crane
In 2016 the island of Grand Bahama was hit by Hurricane Matthew, with wind speeds in excess of 140mph. Matthew caused significant unrepairable damage to crane 3, so in 2017 the decision was made to scrap crane 3 to make way for new replacement due to arrive in 2018.
O’Brien’s were working on a subcontractor basis to carry out the controlled collapse of the crane down to ground level to allow for the straight forward disposal which was carried out by a local company. O’Brien’s have successfully completed many projects for Hutchison Ports across the globe making us the perfect choice to carry out this work.
The biggest challenge on this project came in the form of the port's operations. Freeport Container Terminal is a very busy and congested port meaning every available inch of space is utilised. The team at O’Brien’s were tasked to collapse the 104 metre high structure in as small an area as possible in the shortest duration possible. Our team worked closely with the port to put in place traffic management systems around the drop zone to cause as little disruption to the port operations. As part of the work, O’Brien’s put in place protection to ensure no damage was caused to the quay deck during the collapse. All oils were drained from the gearboxes and motors prior to the collapse, this eliminated the risk of any spillages or contamination to the nearby waterway.
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