1. Drilling and sampling in foundation engineering
Part 72-C5
Drilling and sampling in foundation engineering
VIII/2014, modified XII/2016
(Part 72, PP 2007, animation+p/r: compr.
Copyright notice Unauthorised copying of this presentation as whole or in parts in any form or by any means, electronic, photocopying, recording or otherwise, without prior written permision is prohibited.
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Core drilling through the stone wall injected with cement grout for wire sawing

3. ... and grouting with PUR the next day
Core drilling through the concrete slab for undersealing the leaking crack
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4. press
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Core drilling through the wall for backsealing the leaking porous concrete

5. Samples taken from core drilling through the wall
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Samples taken from core drilling through the wall

6. TITAN – micropiles, anchors and soil nails.
Rotary or rotary - ”light percussive” drilling methods
(”slow and low pressure jet-grouting”)
Example of self-drilling rods
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7. press
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8. TITAN self-drilling rods with sacrificial drill bits
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9. final shape of grouted pile body
cement grout
final shape of grouted pile body
drill rod = pile shaft
drill bit
cuttings
soil
TITAN micropile
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10. Drilling of TITAN micropiles
cement grout
foam
Drilling of TITAN micropiles
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11. press
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12. press
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13. performed by Najder engineering (2004)
anchoring plate
pile shaft
D = 1,54 ddrill
TITAN micropile
performed by Najder engineering (2004)
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15. ”punctured” single stone = ”short live” of sacrificial drill bits
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16. Rotary or rotary-percussive drilling methods
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17. press
press
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18. press
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19. Thank You for Your attention!
THE END of Part 72-C5
Thank You for Your attention!
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20. Welcome to www.najder.se
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