Numerical modelling of TER Results obtained by UPC 9 th TER Technical Discussion, 17 th of June...

Numerical modelling of TER Results obtained by UPC

9th TER Technical Discussion, 17th of June 2008, Chatenay-Malabry, France

Dept. of Geotechnical Engineering and GeosciencesTECHNICAL UNIVERSITY OF CATALONIA (UPC)

Latest update of the 2D THM simulation: pore water pressure

measurements

Latest update of the 3D T simulation against measurements Influence of gallery temperature

Points for discussion

2D THM

2.6

MP

a

13.7MPa 2.6MPa

13.7

MP

a

22ºC

22ºCqw=0

qh=0

2.6MPa 22ºC

qh=0

u=0

u=0

qh23

.4 m

9.4

m

12.7 m

Model used for the computations of the 2D THM backanalysis

Simple model:

• isotropic (conductivity, permeability, rigidity)

• no gallery temperature

Difference map of the pore pressure field

Difference map of the deformation field

2D THM-lo

g (α

T)

-log (kw) -log (kw)kw=3.16 E-20αT=5 E-6

-3

-2

-1

0

1

2

3

4

0 200 400 600 800 1000

Time [days from heating]

Ove

rpre

ssur

e [M

Pa]

1401_P01 1401_sim_01

2D THMPREDICTION

BA

CK

-

AN

ALY

SIS

2D THMPREDICTION

-2

-1

0

1

2

3

4

5

0 200 400 600 800 1000


Ove

rpre

ssur

e [M

Pa]

1402_P01 1402_P02

1402_sim_01

BA

CK

-

AN

ALY

SIS

2D THMPREDICTION

-2

-1

0

1

2

3

4

5

0 200 400 600 800 1000


Ove

rpre

ssur

e [M

Pa]

1403_P01 1403_sim_01BA

CK

-

AN

ALY

SIS

2D THMPREDICTION

-2

-1

0

1

2

3

4

5

0 200 400 600 800 1000


Ove

rpre

ssur

e [M

Pa]

1404_P01 1404_sim_01BA

CK

-

AN

ALY

SIS

2D THMPREDICTION

-2

-1

0

1

2

3

4

5

0 200 400 600 800 1000


Ove

rpre

ssur

e [M

Pa]

1405_P01

1405_P02

1405_sim_01

BA

CK

-

AN

ALY

SIS

TER experiment: 3D T

Site geometry

Horizontal

bedding

planes


Boundary conditions

Applied power

Seasonal temperature changes

in the galleries

Tini = 21.5ºC

Measurements have high variability

13

15

17

19

21

23

25

27

29

17/02

/2005

05/09

/2005

24/03

/2006

10/10

/2006

28/04

/2007

14/11

/2007

01/06

/2008

18/12

/2008

06/07

/2009

22/01

/2010

Time

Tem

pera

ture

TER1302_TEM_01 MedianTER1499_TEM_01 MedianSUG1123_TEM_01 MedianSUG1130_TEM_09SUG1130_TEM_08SUG1130_TEM_07SUG1098_TEM_01 MedianModel

21/12 21/1221/06 21/0621/06 21/12 21/06

0100200300400500600700800900

1000

5-9-05

14-12

-05

24-3-

06

2-7-06

10-10

-06

18-1-

07

28-4-

07

6-8-07

14-11

-07

22-2-

08

1-6-08

9-9-08

Time

Pow

er [W

]

Applied powerModel: interval start timeModel: interval end time

Phase I

Phase II Phase III

11-1-06

22-2-06

6-9-06

15-2-07

26-3-07

30-7-07

7-5-08

λ// [W/m/K] = 2

λ┴ [W/m/K] = 1


TER1201TEM2

20

25

30

35

40

45

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]

TER1201TEM2TER1201TEM2TER1201TEM2


TER1201TEM1

22

24

26

28

30

32

34

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]

TER1201TEM1TER1201TEM1 (A1)TER1201TEM1 (A1)


TER1201TEM3

20

25

30

35

40

45

50

55

60

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1201TEM4

2022242628303234363840

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1201TEM5

21

22

23

24

25

26

27

28

29

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1201TEM5

21

22

23

24

25

26

27

28

29

28-3-

09

17-4-

09

7-5-09

27-5-

09

16-6-

09

6-7-09

26-7-

09

15-8-

09

4-9-09

24-9-

09

14-10

-09

Time

Tem

pera

ture

[ºC

]



TER1202TEM1

22

23

24

25

26

27

28

29

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1202TEM2

21

23

25

27

29

31

33

35

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]

TER1202TEM2TER1202TEM2TER1202TEM2TER1202TEM5


TER1202TEM3

20

25

30

35

40

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1202TEM4

2022242628303234363840

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1202TEM5

21

23

25

27

29

31

33

35

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]

TER1202TEM2TER1202TEM5TER1202TEM5TER1202TEM5


TER1203TEM1

2223242526272829303132

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1203TEM2

2022242628303234363840

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1203TEM3

20

25

30

35

40

45

50

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1203TEM3

20

25

30

35

40

45

50

28-3-

09

17-4-

09

7-5-09

27-5-

09

16-6-

09

6-7-09

26-7-

09

15-8-

09

4-9-09

24-9-

09

14-10

-09

Time

Tem

pera

ture

[ºC

]



TER1203TEM3

20

25

30

35

40

45

50

17-5-

09

22-5-

09

27-5-

09

1-6-09

6-6-09

11-6-

09

16-6-

09

Time

Tem

pera

ture

[ºC

]

TER1203TEM3

TER1203TEM3


TER1203TEM4

21

23

25

27

29

31

33

35

37

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1203TEM5

2122232425262728293031

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1401TEM1

20

25

30

35

40

45

50

55

60

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]

TER1401TEM1TER1401TEM11401_TEM01_shiftedTER1401TEM1


TER1401TEM2

21

23

25

27

29

31

33

35

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1401TEM2

21

23

25

27

29

31

33

35

8-4-07

28-4-

07

18-5-

07

7-6-07

27-6-

07

17-7-

07

6-8-07

26-8-

07

15-9-

07

Time

Tem

pera

ture

[ºC

]



TER1401TEM3

22

24

26

28

30

32

34

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1401TEM4

22

24

26

28

30

32

34

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]



TER1401TEM5

2122232425262728293031

17-6-

05

3-1-06

22-7-

06

7-2-07

26-8-

07

13-3-

08

29-9-

08

17-4-

09

3-11-0

9

22-5-

10

Time

Tem

pera

ture

[ºC

]


Conclusions

The non homogeneous seasonal temperature variation in

the gallery has a non negligible influence. It is important to

keep the sensors in place after dismantling.

Keeping heating during some months is attractive to

investigate the possible influence of the recent low gallery

temperature.

Backanalysis when more info available about skin

temperature and temperature distribution

Application of short cycles

Numerical modelling of TER Results obtained by UPC 9 th TER Technical Discussion, 17 th of June...

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