LARGE DIAMETER DTH HAMMERING SYSTEM       

 

- Using DTH hammer & bit.

- Fast penetration in hard ground formation

- Hole diameter up to 600mm    ~ 1,500mm

  1. Guide pipe

  2. Ready for Drilling

  3. Drilling

  4. Cased Hole

  5. Hole Cleaning (Surging)

  6. H-Beam Inserting

  7. Finished Hole

 

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