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FCC layout: lifts & cranes Ingo Rühl / EN-HE FCC Infrastructure & Operation Meeting 17 December 2014.

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Presentation on theme: "FCC layout: lifts & cranes Ingo Rühl / EN-HE FCC Infrastructure & Operation Meeting 17 December 2014."— Presentation transcript:

1 FCC layout: lifts & cranes Ingo Rühl / EN-HE FCC Infrastructure & Operation Meeting 17 December 2014

2 Wire Ropes – Safety Factor I. RühlFCC I&O meeting 17.12.20142 Safety factor: Ratio strength of rope / working load wire rope strength 10,000 pounds / working load 2,000 pounds → safety factor 5 Safety factor depends not only on the loads applied, but also on: speed of operation; the type of fittings used for securing the rope ends; the acceleration and deceleration; the length of rope; number, size and location of sheaves and drums (bending radius / forces); the factors causing abrasion and corrosion… Safety Factors (only a guide) Miscellaneous Hoisting Equipment5.0 Haulage Ropes 6.0 Overhead and Gantry Cranes 6.0 Jib and Pillar Cranes 6.0 Derricks6.0 Small Electric and Air Hoists7.0 Hot Ladle Cranes8.0 Track Cables3.2 Guys3.5 Mine Shafts8.0 for depths to 500ft. 7.0 for depths 500-1000ft. 6.0 for depths 1000-2000ft. 5.0 for depths 2000-3000ft. 4.0 for depths 3000ft. and more LIFTS12 (US + Japan 10) http://www.seile.com/

3 Wire Rope Failures I. RühlFCC I&O meeting 17.12.20143 There exists no formula to calculate the strength / braking force of steel wire ropes all done / proven via destructive tests strength of rope results from friction between the wires/strands

4 Lifts Lift travel of ~500m considered as maximum feasible –due to very high applicable safety factor of 12 Latest development by KONE lifts – carbon fibre ropes –1 st time commercialized this year; Lift travel of 1000 m and more –Lower mass = Lower wear + Energy savings –Higher speed (16m/s) –Bending > 1m FCC –Lifts with standard steel wire ropes should still do for shaft depths of 500m but Will require fix landing systems due to rope extension/flexibility when loading/unloading lift cabin Lift redundancy a must (i.e. one 3t/35people and one 630kg/4people lift operating next to each other in the same shaft) n° of people in tunnel depends on evacuation speed → lift capacity and speed Higher lift speed (min. 5 m/s) requires more pit depth and head room Will not be possible to simply take over the shaft, pit & machine room dimensions from LHC! –By the time of the FCC construction carbon fibre cables in lifts could have become a standard … I. RühlFCC I&O meeting 17.12.20144

5 Lifts I. RühlFCC I&O meeting 17.12.20145

6 Cranes Crane lifting heights of ~3000m currently feasible and in operation –Applicable safety factor between 4 to 8 –Greatest lifting heights in offshore and mining industry –Paradox – the more the lifting height the less the safety factor Main problem / issue regarding proper weight of steel wire ropes FCC –Lifting heights of 500m is in itself is not a problem but problematic with standard EOT crane layout Twin rope drum system; rope drums > 1.5m; rope drums length ~ 10m → major impact on building height, width and shaft diameter … Or multiple layers of ropes … normally not applied on EOT cranes I. RühlFCC I&O meeting 17.12.20146

7 Alternative Crane Solutions I. RühlFCC I&O meeting 17.12.20147

8 Conclusion Lifts for shaft depth of up to 500m should be feasible with standard solutions but will require some additional technical features Cranes for shaft depths of up to 500m still feasible with standard EOT cranes but will require more studies regarding existing industrial equipment / applications For both cases the standard LHC layout for buildings and shafts cannot be applied! I. RühlFCC I&O meeting 17.12.20148


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