Computational of Temperature and Stresses for Mujib Dam
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- Điều hướng trang này:
- Surface Installed DFTM El. 147.3 mASL 13.03.01 - 12.04.01 El. 159.9 mASL
- Level 149.7 m ASL, Cross Section St. 0+906.2
- Level 158.1 m ASL, Cross Section St. 0+906.2
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150 160 170 180 190 01 .01 .20 01 01 .03 .20 01 01 .05 .20 01 01 .07 .20 01 01 .09 .20 01 01 .11 .20 01 01 .01 .20 02 Date D am E le va ti on [ m A S L] Temporary Surface Installed DFTM El. 147.3 mASL 13.03.01 - 12.04.01 El. 159.9 mASL 27.07.01 - 17.08.01 El. 165.9 mASL 28.09.01 - 06.11.01
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Figure 22 Actual placement schedule for Mujib dam
Figure 23 Temperature contour at the end of placement, Jan. 2002
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0 5 10 15 20 25 30 35 10 15 20 25 30 Temperature (deg C) E leva
tio n ( m ) 0 5 10 15 20 25 30 35 40 0 50 100
150 200
250 300
350 400
Time (days) T e m p e ra tu re ( d e g C)
Conventional approach Actual approach
Figure 24 Temperature contour, April 2002
Figure 25 Vertical temperature distribution along surface wall of gallery (at 7.6 m from upstream) after end of casting for actual placement schedule
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0 5 10 15 20 25 30 35 40 0 50 100 150 200
250 300
Time (days) T e m p e ra tu re ( d e g C)
Fiber optic 23.59 m from U/S ANSYS model (Actual approach) ANSYS model (Conventional approach) 0 5 10 15 20 25 30 35 40 0 10 20 30 40 50 60 70 80 90 Time (days) T e m p e ra tu re ( d e g C) Fiber optic 23.59 m from U/S ANSYS model (Actual approach) ANSYS model (Conventional approach)
Figure 26 Predicted temperature distribution at level 158 mASL (15 m from base of dam) and 19.5 m from upstream (Centroid)
Figure 27 Comparison of temperature distribution at Level 145.5 m ASL
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Figure 28 Comparison of temperature distribution for 90 days at Level 145.5 m ASL
Level 149.7 m ASL, Cross Section St. 0+906.2 5 10 15 20 25 30 35 40 45 0 5 10 15 20 25 30 35 40 45 Distance From Upstream Surface [Metres] T e m p e ra tu re d e g ( C) 19/6/02 10:51 Fiber optic Thermocouples 26.9.2002 150mASL Ansys model 19/6/02
Figure 29 Cross section temperature distribution at level 149.7 m ASL (remove thermocouples distribution from graph as it is completely different date)
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Level 158.1 m ASL, Cross Section St. 0+906.2 5 10 15 20 25 30 35 40 45 0 5 10 15 20 25 30 35 Distance From Upstream Surface [Metres] T e m p e ra tu re d e g ( C) 19/6/02 9:54 Fiber optic Thermocouples 26.9.2002 159mASL Ansys model, 19/06/02
Figure 30 Cross section temperature distribution at level 158.1 m ASL (same comment as above) View publication stats View publication stats tải về 0.89 Mb. Chia sẻ với bạn bè của bạn:
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