COMPARISON BETWEEN LOCAL AND INTERNATIONAL PROJECT
For international project, we select the project that used explosive as a method of demolition. Explosives demolition is a method of dismantling using small amounts of explosives in structural members such as pillars and walls. When these structural members destroyed by explosion, the building significantly decreases the structural stability, eventually collapse by their own weight. By removal of structural members, reinforced concrete structures collapse easily within a short time. Steel frame structures can be demolished using shaped charges. Usually explosives demolition work is finished very shortly within 15 seconds, so it is the best method for minimizing inconvenience to the neighbouring area.
International demolition project
Demolition and Explosive Demolition in the Scottish Highlands.Our group had chosen Hunter Demolition Company as our references for the international demolition project. Below is some of the overview regarding the projects:
Hunter Demolition was appointed by BSW Timber to demolish the ex-Arjo Wiggins paper mill in Fort William After an eight-way competitive tender, which they had purchased to be the sites of their new sawmill.
This was a large and complex project where scheduling, flexibility and the vagaries of a Highland winter – were the key factors. They had a tight deadline to enable their client to begin their new build.
Ten buildings had to be demolished. It was a mixture of concrete frame or metal frame construction and the most challenging part is, in many places it had floors of 0.5 metre thick and foundations of 1.5 metres deep. The buildings also contained extensive asbestos throughout, which was removed by their Asbestos Removal Division.
They had to use explosive demolition to fell the 64-metre high, 3,500 tonne powerhouse into a small target area.
In the final phase of the project, they had to crush and screened 40,000 tonnes of concrete...