Rémy Beunard A Lefevre F Legruel GANIL CAEN FRANCE The 11th INTERNATIONAL WORKSHOP ON ACCELERATOR ALIGNMENT DESY Germany September 1317 2010 Outline Overview about SPIRAL2 project ID: 801659
Download The PPT/PDF document " 20m The Initial Geodetic Survey for ..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
20m
The Initial Geodetic Survey for the SPIRAL2 Process Installation at GANIL
Rémy Beunard
A
. Lefevre, F. Legruel
GANIL, CAEN, FRANCE
The 11th INTERNATIONAL WORKSHOP ON ACCELERATOR ALIGNMENT
DESY, Germany, September 13-17, 2010
Slide2Outline
Overview about SPIRAL2 project
The Geodetic Systems
Process installation principle
Monitoring of Building Movements Summary
Slide3PARIS
CAEN
FRANCE
Geographical
location
The SPIRAL 2 project is located at the GANIL * facility in Caen in Basse-Normandie.
*GANIL: (Large National Heavy-Ion Accelerator)
GANIL
OVERVIEW SPIRAL2
GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Hamburg
Slide4HRS+RFQ Cooler
GANIL/SPIRAL1/SPIRAL2 facility
A/q=6 Injector option
DESIR Facility low energy RIB
RIB Production Cave
Up to 1014 fiss./sec.
A/q=3 HI source
U
p to 1mA
A/q=2 source
p, d
, 3,4He 5mA
LINAC: 33MeV p, 40
MeV
d, 14.5 A
MeV
HI
S3 separator spectrometer
Neutrons For Science
GANIL/SPIRAL 1 today
CIME cyclotron RIB at 1-20
AMeV
(up to 9
AMeV
for
fiss
. fragments)
SPIRAL1
(Production System of On-Line Accelerated Radioactive Ions)
is the first facility for production and acceleration of exotic nuclei constructed in France in 2001.
50 m ~
GANIL has been running at Caen since 1983 as a joint CEA-CNRS facility.
The SPIRAL2 project aims at delivering high intensities of rare isotope beams .
OVERVIEW SPIRAL2
GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide5Organization – Two construction phases
Existing GANIL facility
DESIR
Exp area
Phase 2
start of earthworks: at the end of 2011
RIB PRODUCTION
NFS Exp area
ACCELERATOR
Conventional facilities
Phase 1
start of earthworks: at the end of this year
S3
OVERVIEW SPIRAL2
GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide6GANIL
Phase 1
Accelerator & S3, NFS
Building 3D visualization
DESIR
Phase 2
RIB PRODUCTION
conventional
facilities
(
electricity
, water
cooling
, ventilation,
climatization
,
handling
systems
,……)
Process will be installed underground at level -9.50 m
OVERVIEW SPIRAL2
GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide7Process
Phase 1
Cross section
25 m ~
Accelerator Process : level -9.50 m
Towards Production Building
3D design
with
SolidWorks
OVERVIEW SPIRAL2
GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide8HRS + RFQ
Cooler
RIB ProductionRIB to GANILLevel : -1.75 m
RIB to DESIR
ProductionModule
Beam from the accelerator
Level : -8.0 m Building is designed to comply with all the safety constraints imposed by the high radiation activity, Studies on the alignment are in progress
Process
Phase 2
OVERVIEW SPIRAL2
GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide9SPIRAL2 …the milestones
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
Construction of new detectors
Exp.
w
ith
S3
Exp.
w
ith
NFS
Construction
Phase 1
Stable ion beams from LINAC
Commis-sioning
Phase 1
Construction
Phase 2
Commis-sioning
Phase 2
First LINAC Beam
Feb. 2012
Today
First RIB
Oct. 2013
RIB
Geodetic Measurement
Installation and Alignment process
OVERVIEW SPIRAL2
GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide10The geodetic systems: local and national
Why two systems at GANIL ?
1- Local system
GANIL has a "local" geodetic system : used to align and position the functional components.
2- National systemA general topographic plan of the site was produced in 2003: expressed in the French national geodetic systems.
The construction plans of the SPIRAL2 project were produced on the basis of the topographic plan.
OVERVIEW SPIRAL2 GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide11the facility.
CSS1
X = 500. 00 m
Y = 200.000 m
Z = 20.000 m
Y
X
Z
25 m
CIME
The local geodetic system
CSS1
X = 100. 000 m
X = 500. 00 m
Y = 200.000 m
Z = 10. 000 m
Z= 20.000 m
CSS2
X = 100. 000 m
X = 500. 000 m
Y = 229.0154 m
Z = 10. 000 m
Z = 20.000 m
« Point Croix »
X = 111. 000 m
X = 511.000 m
Y = 241.5154 m
Z = 10. 000 m
Z = 20.000 m
connection of the radioactive beam transport line
Reference network marks
The characteristics :
Cartesian coordinate system defined by the centres of the two cyclotrons, CSS1 and CSS2.
E
stimated absolute precision ±2.0 mm
OVERVIEW SPIRAL2
GEODETIC SYSTEMS
INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide12Y
X
The national geodetic system
Topographic plan
CSS2
CSS1
CIME
radioactive beam transport line
Existing GANIL facility
Our constraint
…the future connection of the radioactive beam transport line to the CIME cyclotron
geographical location of the SPIRAL2 process
The characteristics :
planimetry
– the Lambert1 conical projection system
altimetry – the NGF IGN69 system
estimated absolute precision ±15 mm.
50 m
OVERVIEW SPIRAL2
GEODETIC SYSTEMS
INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide13S118
S1191
S123
S122
7031
7032
7033
7034
25 m
Topographic ground point (station)
New ground point outside existing installations
… Connection of the local geodetic system to the national system
Now, the project coordinates can be expressed in both geodetic systems
X
Z
Y
Local system
X
Z
Y
Lambert 1 system
Connection consisted :
to transfer 4 points (in blue) to the outside of the installations.
on the topographic plan, 4 stations (in red) known in the national system were selected .
A change of system :
Helmert
transformation
This operation had 2 objectives:
"register" precisely both construction and building plans to match our local system,
simplify the installation of the process to guarantee the required connection.
Phase 2 radioactive beam transport line
OVERVIEW SPIRAL2
GEODETIC SYSTEMS
INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide14Diagram showing the Cartesian coordinates in the two systems
of the process fundamental points
Linac/LHE intersection
system
X
(m)
Y
(m)
Lambert 1
403 428.339
171 900.345
Local
445.113 31
348.231 53
Linac axis
LHE axis
50
m
X
Z
Y
Local system
X
Z
Y
Lambert 1 system
Intersection
Linac
/LHE
system
Coord
. X
(m)
Coord
. Y
(m)
Lambert 1
403 428.339
171 900.345
Local
445.113 31
348.231 53
D52
magnet
system
Coord
. X
(m)
Coord
. Y
(m)
Lambert 1
403 498.343
171 834.095
Local
498.323 31
267.866 69
CIME
cyclotron centre
system
Coord
. X
(m)
Coord
. Y
(m)
Lambert 1
403 497.653
171 828.567
Local
496.400 01
262.638 39
LHE intersection / 1+ Line-Section 0
system
Coord
. X
(m)
Coord
. Y
(m)
Lambert 1
403 437.022
171 862.940
Local
445.113 31
309.831 53
S3
Existing GANIL
OVERVIEW SPIRAL2
GEODETIC SYSTEMS
INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Slide15Surface geodetic network project
Type of geodetic pillar equipped with a forced centring
1
Pillar
of the
Linac and LHE line axes (
included in the geodetic network) Geodetic network pillar
6
7
8
2
9
5
4
3
10
Phase 2 radioactive beam transport line
This geodetic network had two objectives:
to provide reference points to allow installation of the process at level -9.50 m,
to monitor movements of the building at level 0.
Pillar will be anchored on at the geologically highly stable bed and isolated from the future infrastructures and their excavations.
These pillars will remain in position throughout the lifetime of the accelerator
How to install the process geographically ?
OVERVIEW SPIRAL2 GEODETIC SYSTEMS
INSTALLATION PROCESS
BUILDING MOVEMENTS SUMMARY
Slide161
3
4
2
Surface geodetic network project
Reference pillar for process installation at – 9.50 m
Phase 2 radioactive beam transport line
Network takes into account the land occupied by the worksite, earthworks area and final layout
Pillars must be installed after the earthworks and before starting the civil engineering work for the building
Surveying for surface network will be carried out by TDA tacheometer with GPS observations
Simulation remains to be done
Final accuracy expected : ± 3.0 mm ?
OVERVIEW SPIRAL2 GEODETIC SYSTEMS
INSTALLATION PROCESS
BUILDING MOVEMENTS SUMMARY
Slide17The first solution which occurred to us is to transfer the beam Linac axis by optical plummet through this survey shaft.
Installation the 2
nd
order geodetic network
Linac axis
Pillar N°1
Pillar N°2
shaft
shaft
longitudinal section of the Linac
Lev. 0.0 m
Lev. -9.50 m
Filling up layer
(calcareous stone extracted during the excavation)
This solution was rejected because of the risk of neutron scattering at level 0 due to the difficulty to press down the calcareous stone around the shaft
Transfer of aboveground coordinates into the tunnel via plumbing
OVERVIEW SPIRAL2 GEODETIC SYSTEMS
INSTALLATION PROCESS
BUILDING MOVEMENTS SUMMARY
The beam line axis will be transferred onto the concrete slab from pillars 1 to 2
Slide18talus
talus
Sketch
Block limit
ACC 1/2-2/2
Intersection
Linac / LHE
Pillar N° 1
Lev. + 1.43 m
Lev. 0.0 m
Slope
Slab
Lev -9.50 m
Slope
Lines of sight
Lines of sight
Markers sealed in the slab
Installation principle of the process (
Linac
) axes at level – 9.50 m
Installation the 2
nd
order geodetic network
Pillar N° 2
Lev. + 1.43 m
Linac axis
Constraint of this solution :
This operation must
be
performed before
the concrete slabs of the higher levels are poured (ceiling of
Linac
and beam transport rooms)
reference marks will be sealed in the slab at predefined positions,
their Cartesian coordinates will be determined using the geodetic pillars of the first order network.
OVERVIEW SPIRAL2 GEODETIC SYSTEMS
INSTALLATION PROCESS
BUILDING MOVEMENTS SUMMARY
Slide19Installation the 2
nd
order geodetic network
Partial view of the
topometric network of the process at -9.50m
Installation of a floor grid reference spaced between 3 and 5 m.
OVERVIEW SPIRAL2 GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Network measurements with TDA 5005 coupled with Laser Tracker LTD 500 and digital Level
Leica
NA3003
Standard deviation of a point expected
0.1 mm
Reference marks sealed in the slab
Reference marks sealed againts the walls
(study is ongoing)
Viewing window installed during the making of concrete walls
Slide20Altimetric
systems (m)
GANIL
"local"
NGF
(
topographic plan)
Contactor
(building plans)
GANIL
Accelerator floor
+18.50
+ 58.47
0.00
Experimental area floor
+ 18.25
+ 58.22
-0.25
ACC Beam Median Plane lev 0
+ 20.00
+ 59.97
+1.50
ACC Beam Median Plane
lev
-1
+ 16.75
+ 56.72
-1.75
SPIRAL2
Floor lev +0.00 (ground level)
+18.50
+ 58.47
0.00
SPIRAL2
Beam
Median Plane
+ 10.50
+ 50.47
-8.00
Floor
lev
-9.50 (
Linac
)
+ 9.00
+ 48.97
-9.50
Mapping between the various
alltimetric
systems used
Systems which will be used on the site depending on requirements
OVERVIEW SPIRAL2 GEODETIC SYSTEMS
INSTALLATION PROCESS
BUILDING MOVEMENTS SUMMARY
Slide21Monitoring of building movements at ground level
L
ines of sight
to monitor the building
Block ACC 1/2
Block ACC2/2
Block S3
Block NFS/LHE
Movements will mainly be monitored during the first five years,
Quantify the movements of each building “block”,
Measurement will be taken by polar sighting using
tacheometers
from pillars.
OVERVIEW SPIRAL2 GEODETIC SYSTEMS INSTALLATION PROCESS
BUILDING MOVEMENTS
SUMMARY
Slide22Summary
Final goal : to guarantee the future connection of the new accelerator,
The connection requires designing a “surface” network linked to the local survey,
The local system was “connected” to the national system : to express in both systems the process and construction plans requirements,
The first order network geodetic pillars will be surveyed by tacheometer TDA 5005 coupled to a differential GPS,
The
surface network will be transferred to the floor accelerator tunnel, in order to define the reference network for aligning all functional components. See poster: « Survey and Alignment Concept for the SPIRAL2 Accelerator »
OVERVIEW SPIRAL2 GEODETIC SYSTEMS INSTALLATION PROCESS BUILDING MOVEMENTS SUMMARY
Thanks for your attention!