1Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel Group
Holma. Jord ankre for start rammen for TBM’erne Anna og Katrin
v. Per B. Laursen, Rambøll
2Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaProject
Client: City Tunnel projektet
Contractor: MCG
Bilfinger and Berger
Per Aarsleff A/S
Pihl og Søn A/S
3Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaExpected conditions in overview
Groundwater level in limestone, zone 1
GT 67GM 2010001
5+300
5+360 Concrete tunnel Ramp5+722 6+105
5+400
Portal
Zone 1
Zone 2
Zon 3
Cross tunnel 13
Quaternary
Limestone
HyllieStation
5+500
+20
+30+30
+20
+10+10
+0+0
-10-10
-20-20
-30-30
-40 -40
Level, meterLevel, meter
Chainage Track 71, meter5+600 5+700 5+800 5+900 6+000 6+100
4Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaExcavation. Design of intake
10 m belowexcavation
+17,5
+12,7
+9,5
Pumping well
+2,2
Track 71Stat 5+400
Infiltration well
10 m inlimestone
LevelMeter
+20
+15
+10
+5
0
-5
-10
5 m screening
Well loss
Lowered groundwaterlevel
10 m inlimestone
Pumping well Sheet pile
wall
Clay till
Limestone
+17,5
8 m
+12,7
+9,5
+2,6
27,5 m
Track 74Stat 5+360
Infiltration well
LevelMeter
+20
+15
+10
+5
0
-5
-10
West
Excavation
East
5Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaReinfiltration and Controlperimeter
6Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel.HolmaMCG Air photo oct. 2005
7Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaMCG air photo spring 2007.
8Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaPlacering af pumpeboringer i den dybe ende
9Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaMapping the zone 2B. 20 pumping wells to 45 pumping wells
+19
+20
+20
+20+21
+21
Track 74
Track 71
5+300
5+ 400
5+ 4 00
5 + 50 0
5 +5 0 0
5 + 60 0
5+ 6 00
5+700
5+700
05.TU.501805
.TU.5028
05.TU.50
22
05.TU.50
09
05.TU.50
0805
.TU.5020
05.TU.50
24
05.TV
.5005
05.TU.50
23
05.TU.50
2905
.TU.5025
05.TU
.5026
05.TU.50
0705
.TU.5021
05.TV.5
004
05.TU.50
3105
.TU.5006
05.TU
.5027
05.TU
.5030
05.TV.5
003
05.TU.50
05
05.TV
.5002
05.TU.50
04
05.TU.55
03
05.TU.55
03
05.TU.50
18
05.TU.50
01
05.TU.50
2205
.TV.500
705
.TU.5024
05.TU.50
10
05.T
U.5
029
05.T
V.50
0805
.TU
.502
505
.TU.
5011
05.T
U.5
026
05.T
V.50
0905
.TU
.503
005
.TU
.501
2
05.T
V.50
10
05.T
U.50
15
05.T
V.50
12
05.T
U.50
16
05.T
U.50
17
05.T
U.50
13
05.T
V.50
11
05.T
U.5
014
05.P
U.5103
05.TU.50
03
05.P
U.5104
05.P
U.5004
05.P
U.50
01
05.P
U.51
01
05.P
U.50
02
05.P
U.51
02
05.P
U.50
0605
.PU.50
05
05.P
U.5105
05.P
U.51
06
Groundwater level in limestone before lowering, zone 1
5+300
5+320Concrete tunnels
Chainage track 74, meter, shown for track 71
Flowlog resultsVertical section along track 71
Ramp5+683
5+400
Portal
Quaternary
Limestone
Zone 2B
Zone 2A
Zone 1
5+500
+20
+30+30
+20
+10+10
+0+0
-4,1-5
-3,5-3,7
-5,2-4,0
-10-10
-20-20
Level, meterLevel, meter
5+600 5+700
TOR
Deepest excavation levelDeepest groundwaterlowering level
Flowlog profile. The ‘box’ around the flowlogshows the interval over which the vertical flow in the well has been measured. The width of the box corresponds to the pumping yield, i.e. 100% flow.
GWL in monitoring wells 05-10-31
GWL in pumping wells 05-10-31
Holma. Longitudinal sFlowlogs. Wes
E l BLMM/JAN 2005-11-07
10Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaBasis and extension of system
11Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaPlacering af jordankre for TBM start ramme
12Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel.HolmaResultater fra grout af vandrette jordankre
13Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaProblems in starting area
14Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaJordankre
15Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaEtablering af jordankre
16Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaOverløb fra zone 2C i forseglede ankerboringer
17Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaOverløb fra jordanker (Skråt). F
Foto: Jesper D. Christensen P. Aarsleff A/S
18Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaContrlperimeter
19Slide08-10-2007DGF: Malmø Citytunnel Group
Malmø Citytunnel. HolmaContrlperimeter