Part 75-1D Piles, steel-core piles and micropiles. Static test loadings II/2013, modified.

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Presentation transcript:

Part 75-1D Piles, steel-core piles and micropiles. Static test loadings II/2013, modified 10/2016 (Part 75-1, PP 2007, animation+p/r : 2016.10.23 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. ready

End-bearing with pile tip on a rock surface Typical underpinning solution in Sweden – Bjurström micropile (displacement pile) ready

End-bearing with pile tip on a rock surface Modified by TNa Bjurström micropile (friction type to the left) and conventional (end bearing to the right) End-bearing and by friction along the shaft ready

Bjurström micropile as underpinning solution in Sweden ready Bjurström micropile as underpinning solution in Sweden

Steel-core piles for underpinning (replacement pile, grouted in-situ, permanent casing required) ready

Rapport 97 End-bearing or end-bearing and by friction along the shaft within rock socket (alt. in soil along drill casing) ready

Casing is left in the ground Steel-core piles press press ready

ready Rapport 97

ready Rapport 97

Rotary – percussive drilling = pulling force + rotation + percussion Rotary drilling = pulling force + rotation Pulling force = thrust or advanced in English på svenska press ready

ODEX principles (rotary /percussive drilling) reamer ring drill bit ODEX principles (rotary /percussive drilling) press ready

“Mixed drilling” (in soil and rock) for ODEX and TUBEX ready

Top hammer (to the left) and Down-The Hole-Hammer (DTH) to the right ready

ODEX for Down-The Hole-Hammer (DTH) – casing shoe press ready

ODEX G2 for Down-The Hole-Hammer (DTH) ready ODEX G2 for Down-The Hole-Hammer (DTH)

ΔS Odex Symmetrix Odex less air … backfill backfill ΔS clay (with stones and boulders) clay coarse sand, gravels and rock rubble Odex rock Difficult soil conditions for drilling (Stockholm) press press ready

press ready

ready

ready

ECCENTRIC vs. ROBIT® concentric drilling ready

Elemex, Symmetrix, ROBIT and IBEX drilling system NO-X OD = Rotary percussive drilling method with centric drill bit and percussed rotating casing with button bits + = Elemex, Symmetrix, ROBIT and IBEX drilling system NO-X = Rotary percussive drilling method with rotating centric drill bit and percussed none rotating casing with button bits ODEX and TUBEX = Rotary percussive drilling method with eccentric reamer separately rotating to drill bit and percussed but none rotating casing without button bits press press press press ready

Elemex, Symmetrix, ROBIT and IBEX drilling system NO-X ODEX and TUBEX = Rotary percussive drilling method with eccentric reamer separately rotating to drill bit and percussed none rotating casing without button bits Elemex, Symmetrix, ROBIT and IBEX drilling system NO-X = Rotary percussive drilling method with rotating centric drill bit and percussed none rotating casing with button bits ready press press press

press press ready Drilling components

Drilling components – cont. ready Drilling components – cont. press press

press press ready

press ready Starting stage for drilling: pilot bit mounted on the Down-The Hole-Hammer (DTH) during inserting into the casing Pilot bit mounted on the Down-The Hole-Hammer (DTH) after inserting into the casing – ready for drilling

press ready

Casing and casing shoe is left in the ground press press ready Withdrawal of the pilot bit mounted on the Down-The Hole-Hammer (DTH) from the casing Pilot bit mounted on the Down-The Hole-Hammer (DTH) disconnected from the casing shoe Drilling principles for piling into the rock

press press ready

ready

Casing is removed but casing shoe is left in the ground (piling in solid, stable rock) press press ready Casing drilled to the designed final depth Drilling for piling in the rock

Casing is removed but casing shoe is left in the ground (piling in none stable rock) press ready Drilling for piling in the rock – grouting and simultaneous withdrawal of casing (option) Drilling for piling in the rock – inserting of steel core The pile is completed

Ring bit and integrated casing shoe for the Down-The Hole-Hammer (DTH) Percussed none rotating casing with button bits with inserted the Down-The Hole-Hammer (DTH) ready Ring bit and integrated casing shoe for the Down-The Hole-Hammer (DTH) Percussed none rotating casing with button bits Drilling with Robit method in soil press press

Coupling of drill pipes (rods) for the Down-The Hole-Hammer (DTH) press ready Drilling in the soil with the Down-The Hole-Hammer (DTH) and air flush

Large diameter steel-core piles for Symmetrix ready Large diameter steel-core piles for Symmetrix

Robit DTH drilling for steel-core piles at Torsgränd in Stockholm press press ready

Thank You for Your attention! THE END of Part 75-1D Thank You for Your attention! ready

Welcome to www.najder.se ready