Transcription of Singapore Geology And Its Impact on Underground ...
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Singapore Geology And Its Impact on Underground ...
Jeyatharan Kumarasamy Singapore Geology And Its Impact on Underground Construction Works Singapore Geology Some characteristics of Singapore soils and rocks Construction methods Deep excavations Tunnelling Construction challenges Deep excavations Tunnelling Conclusions Content Singapore Surface Geology Map Bukit Timah Granite Formation jurong Formation Old Alluvium Formation Kallang Formation Major Geological Formations in Singapore oExistence of corestones/ boulders depends on the minerals of the original rock and the weathering agents oSize of corestones/boulders vary Bukit Timah Formation oSurface weathered to residual soil (mainly sandy clayey silt); depth to bedrock varies from 3m to up to 70m with an average depth of 30m oThere is often, but not always, corestone/boulder encountered within GVI to GV oAverage uniaxial compressive strength of intact rock is about 190 MPa but could be as high as 400 MPa oThere are 4 to 5 joint sets ranging from sub horizontal to sub vertical.
Jurong Island Cavern Project . Excavation at Esplanade Semi-circular Cofferdam Excavation . Adopted construction sequence at Esplanade Semi-circular Cofferdam Excavation . Various Construction stages at Esplanade Semi-circular Cofferdam Excavation . The Sail, Marina Bay Triple cell
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