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The construction of Jurong Rock Caverns in Singapore

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If you are asked to name the highest point of Singapore, it would be easy to find out the answer on the Internet (1), but if you are asked to name the lowest point of Singapore, it would be more difficult to figure out the answer. The Jurong Rock Caverns (JRC) project is the first underground rock caverns storage project in Southeast Asia and the deepest known point for a public work in Singapore, at 158.5 m below sea level. The project consists of five storage caverns with a total storage capacity of 1.47 million cubic meters. These caverns were constructed via two 130 m deep access shafts below the sea in sedimentary rock conditions. The excavation was done using the Drill and Blast method, and in the process, more than 3.5 million m3 of were removed.

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