technology DLT strand jacks Operating sequences Strand cable
technology DLT strand jacks Operating sequences
Strand cable Safe lifting capacity 15. 5 MT per strand Top anchor Hydraulic cylinder Hollow centre Bottom anchor technology General view of strand jack
technology General view of bottom anchor
Strand wedges Grip strand when closed Grip opening jack Grip opening Plate. Connected to grip release tubes technology Anchor block, with machined cones for strand wedges Cut away of bottom anchor
technology Operation of bottom anchor - closed
technology Operation of bottom anchor - open
technology General view of top anchor
technology Cut away of top anchor
technology Operation of top anchor - closed
technology Operation of top anchor - open
STRAND JACK LOAD LIFTING SEQUENCE technology
DL-P 40 computer control system representation Top anchor status 120% Green = closed Top anchor closed Red = open 100% Closed Expected load 0% Jack load indicator Bottom anchor status Load in bottom anchor Bottom anchor closed Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 0 mm 1 Ready for strand lifting stroke
120% 100% Closed Jack stroke indicator 0% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 15 mm 2 Extend ram to transfer load to top anchor
120% Closed 100% 0% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 250 mm 3 Strand lifting stroke
Closed 120% 100% 0% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 500 mm 4 Top of strand lifting stroke
Closed 120% 100% 0% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 480 mm 5 Retract ram to transfer load to bottom anchor
technology Open top anchor
technology Open top anchor
Open 120% 100% 0% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 480 mm 6 Ready for ram retract stroke
120% Open 100% 0% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 250 mm 7 Retract stroke
120% 100% Open 0% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 0 mm 8 Bottom of retract stroke
technology Close top anchor
technology Close top anchor
120% 100% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 0 mm 9 Back Ready for next lifting cycle
STRAND JACK LOAD LOWERING SEQUENCE technology
120% 100% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 0 mm Jack fully retracted with grips closed
technology Open top anchor
technology Open top anchor
120% 100% Open 0% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 0 mm Ready for ram extend stroke
120% Open 100% 0% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 250 mm Ram extend stroke
Open 120% 100% 0% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 450 mm Top of ram extend stroke
technology Close top anchor
technology Close top anchor
Closed 120% 100% 0% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 450 mm 1 Ready to transfer load to top anchor
Closed 120% 100% 0% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 480 mm 2 Extend ram to transfer load to top anchor
technology Open bottom anchor
technology Open bottom anchor
Closed 120% 100% 0% Open technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 480 mm 3 Ready for strand lowering stroke
120% Closed 100% 0% Open technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 250 mm 4 Strand lowering stroke
120% 100% Closed 0% Open technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 50 mm 5 Bottom of strand lowering stroke
technology Close bottom anchor
technology Close bottom anchor
120% 100% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 50 mm 6 Ready to transfer load into bottom anchor
120% 100% Closed technology Jack No. 3 Load 1580 k. N Pre-set 1600 k. N Stroke 20 mm 7 Transfer load into bottom anchor
technology Open top anchor
technology Open top anchor
120% 100% Open 0% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 20 mm 8 Ready for ram extend stroke
120% Open 100% 0% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 250 mm 9 Ram extend stroke
Open 120% 100% 0% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 450 mm 10 Top of ram extend stroke
technology Close top anchor
technology Close top anchor
Closed 120% 100% 0% Closed technology Jack No. 3 Load 0 k. N Pre-set 1600 k. N Stroke 450 mm 11 Back Ready for next lowering cycle
- Slides: 52