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Back to Project List Page  

Project Title:
IMPROVEMENT OF ALEXANDRA CANAL (Between Zion Road & Kim Seng Road)

Client : Eng Lam Contractors Co (Pte) Ltd

Owner : Public Utilities Board

Architect : -

Engineer : Surbana International Consultants Pte Ltd

Contract Sum : $8,729,087.00

Period : Feb-2013 to Oct-2013

Scope of the works :
  • IMPROVEMENT OF ALEXANDRA CANAL (Between Zion Road & Kim Seng Road)
  • 135nos of 600/1000mm diameter bored piles
  • 70nos of 1500mm diameter bored piles
  • 18nos of 1800mm diameter bored piles
  • Pile lengths between 30m & 55m with socket into granite bedrock between 1 & 7.5m
  • Permanent casings for 1500 & 1800mm piles, 15m length from 9m below platform level
  • Iinstalled by rotary method with a 10m drive adapter to push casing to 9m below ground
  • Pile load tests : Osterberg Cell & PDA

 
Subsoil conditions

0 to 2/4m : Fill
2/4 to 8/12m : V Soft Marine Clay / Peaty Clay
8/12 to 20/26m : Soft to V Stiff Sandy Silt / Silty Sand
20/26 to 28/45m : Dense to Dense Silty Sand
> 28/45m : Granite Bedrock



Stabilization fluid : polymer



Major equipment deployed

- Boring Rigs : Bauer BG28 & BG36

- Crawler Cranes – 80 & 90 ton

- Excavators

- Special extension 10m length casing drive adapter




Tools

- Rock Boring Bucket, Auger, Core Barrel,

  Rock Roller Bit Core Barrel, Chisel & Cleaning Bucket

- Casing lengths 9/12m

Project Gallery

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  • Marine Bored Pile
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  • Grout Mixed Pile & Jet Grout Pile
  • Removal of Underground Obstructions
  • Starsol Pile
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