Replacement of underwater hardstanding, Baglan Bay, Port Talbot
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Tankers up to 6,000 tonnes regularly delivered raw materials to the jetty at BP Chemicals’ Port Talbot works. Destruction of existing hardstanding by propeller scour had lead to a bed-profile insufficiently regular for the tankers. The large tidal range meant ships resting on the hardstanding during low tide.
A robust solution was sought that could be installed underwater, and between weekly deliveries throughout the year.
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- Existing construction replaced by layer of clean rock (50m x 15m x 300mm )
- Rock placed using laser guided plant
- Rock grouted to fill all voids with mastic
- Accurate, rapid placement of mastic from specially designed skips avoided disruption to deliveries
- A level, flexible, scour resistant hardstanding was produced