oa Civil Engineering = Siviele Ingenieurswese - The foundations of the oil refinery at Durban
The Standard Vacuum Oil Company's new 7,000,000 refinery at Wentworth, Durban, which has boon in operation since 1953, is located on the Bluff and near the Wentworth peat bog. At the refinery site the foundation material consists briefly of sand to a 50 foot depth, then clay to 70 feet and then Band which has been proved to 120 feet depth. Due to the small differential settlement requirements it was decided to found the major items of plant on long piles taken down 100 feet and it is believed that these are the longest piles which have been constructed in South Africa. In certain instances piles had to be jetted in order to facilitate the driving through the top horizon of sand.
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