Endcap shielding senarios:
•YE1-2 Gap senarios – (Ref. Boki C vs Surkov 6)• YE1 closed and YE2 opened 3.05m
•YE2-3 Gap senario – (Ref Boki E vs Surkov 2)• YE1 open 3.74m YE2 open 3.84m and YE3
opened 7.64m •YE3-4 Gap senario – (Variation of Surkov 3)• YE1 and YE2 closed YE3 open 0.1m YE4 opened
3.8m. • Note 1: YE3 and YE4 can be opened more if gap
remains at 3.7m as long as YE4 is not opened more then 6.7m• Note 2: Supporting outriggers with a 3.7m gap
and no or minimal bracing to YE3 allows for cherry picker access and maximum crane coverage
ISO view of shielding assembly
Removable third leg for setting on the floor
For guiding into position over beam- pipe
Linear slide for bottom lead plates
Steps of installationStep 1 - Drilling and taping of holes for shielding supportNote: This is done after the existing beam pipe is removed
Will add a view to show drilling
Step 2 - Install permanent mountsNote: leaving the shielding mounting hardware on YE2 requires a small modification to the spacer disk shielding
Will add a view to show permanent mounting features
Step 3 - Installation of the guidesThe guide post slides into base and is secured with a quick release pin. The guides should be installed for both the external and internal shielding assemblies
Base
Guide
Weight is approximately 10 pounds (5 kg)
Rated side force is approximately 310 lbs(140kg)
Step 4 - Adjust pick point on lifting beamMatch the pitch of the shield to the pitch of the hall.
Pick point slides to adjust
Secures pick point to set position
Step 5 - Install and secure external half of shielding assemblyISO view of shielding before installation
Note will show ropes/tethers for additional guidance
Step 5 - ContinuedIso view of shielding in place.
Step 5 continued - Securing the shielding assemblyEnd view of shielding in place showing cherry picker positions for securing shielding
Bottom corner of cherry picker
Additional fixtation will be located here
Step 6 - Close the bottom doorsDoors must be closed before the second shielding assembly is installed
Will show a end view with doors closed
Step 7 - Install and secure IP side of the shielding assembly
Repeat steps 4-6
Will add a view showing the second half being installed
Removal Done in reverse order of assembly
Note: If additional lead is added after installation, it must be removed to establish the original center of gravity. The pick point of the lifting beam must be returned to its original position for that assembly before removing that assembly
Adapter is required for mounting the to the front of the YE3 disk
Top mount point on YE2
Adapter for mounting on YE3
Side view of shielding mounted in YE2-3 gap
Will add view
T1 cables and flexible pipes will be pulled back to the external side of the YE4 inner disk The cables and flexible gas and water lines will be disconnected from the IP side of the YE4-outer so it can be moved with the YE4 wall. The cables and flexibles will be tied back on the external side so that they are not damaged when the shield is installed on the IP side?
View of the external side of the YE-4 inner
Side view of shielding in YE3-4 gap
Will add view
Strength of M20 fasteners
2750kg (6050lbs)
875
Ry
Rx
Rx
2663
2xM20
Reacts against the 10mm step of the inner ring
w 2750kg 9.81Nkg
dcg 875mm
dmount 2663mm
As 245mm2
yp 640N
mm2
Rx wdcgdmount
RxsRx2
xRxsAs
x 18.09N
mm2
FSypx
FS 35.378
Rxs 4.432 103 N
FS=5.5 w/o 10mm step and nofriction
Plan for testing the shielding assembly
Will show shielding mounts being tested by hanging assembly on a fork lift.
Back up slides follow this page
Widest part if beam pipe is bracket for vacuum pump at 440mm
Cherry picker access to end cap gaps
Another ISO view
Side View of shield in place