|BORED PILE EQUIPMENT
Telescopic Kelly bar type Earth Drilling Rig
NISSHA ED( Earth boy -Nick name ) earth drilling rigs are of “Kelly bar type” earth drilling rigs for constructing various sized bored piles (Cast-in place concrete piles) into comparatively soft stratums where no cobbles and boulders contained. There are two type of rigs, a lattice boom type (Two models) and a telescopic boom type (One model).
Drilling bore holes for constructing various sized cast-in-place concrete piles into the comparatively soft stratums (Maximum S.P.T. N-value 50).
Fleet of earth drilling rigs:
Ranging from φ1000 〜 3000mm in shaft diameter and 43〜62m in depth. Bell pile bucket (φ1700〜4100)
Full-hydraulic drive, Self-propelled, Square/round type telescopic kelly bar with rotary bucket. Lattice boom type/ telescopic boom type/Leader type. Bell-pile bucket with computer monitor/recorder (Optional extra).
|1. Centering 2. Starting drilling 3. Inserting stand pipe 4.Feeding bentonite 5.Drilling till the specified depth 6.Inserting belling bucket 7. Reaming bore hole bottom 8. Measuring depth 9.Setting up iron-reinforcement cage 10. Inserting tremie tube 11. Cleaning slime by an air-lift 12. 13 Concreting 14.Completing cast-in-place concrete pile with belling bottom.|