2. MWH Engineering - Guri Project Lessons
Preparing Venezuela for the 21st Century
CORPORACION
VENEZOLANA DE
GUAYANA CVG,
The Venezuelan
Guayana Corporation
was created by the
Venezuelan
government to
develop Guayana for
the Venezuelan
people.
Guri – 10,000 MW Caroni River
The Guri Hydroelectric complex provides Gravity Dam:
the most economical power in the world. Deflection 22 mm
Owned by Edelca, a subsidiary of CVG. Seepage 10 litres
per second
Slide 2
4. MWH Engineering - Guri Project Lessons
52 m Guri Dam Raising
1984
Monolith width:
First stage 21 m
Final stage 28 m
Jan Veltrop
R.P. Wengler
Dr. W.Y. Shieh
Slide 4
Dr. C.H. Yeh
6. MWH Engineering - Guri Project Lessons
52 m Guri Dam Raising
Investigate
interaction of
old & new dams
using finite
element analysis
Temperature
control of new
concrete
Dr. W.Y. Shieh
Dr. C.H. Yeh
ICOLD Bulletin
Slide 6
7. MWH Engineering - Guri Project Lessons
Spillway Aeration
8% air in boundary layer
protects against cavitation
Dr. C.Y. Wei
Dr. V. Semenkoy
Slide 7
8. MWH Engineering - Guri Project Lessons
Intake Design – Record Roller Gates
Plan
Hydraulic Gate Hoist
Intake
Dr. J.E. Lindell
I.T. Laczo
Slide 8 Roller Gate
Valve
9. MWH Engineering - Guri Project Lessons
Record Powerhouse
Ten 700 MW units
Hall 25.25 m wide
364 m long
operator Two 700 ton cranes
Single Phase 268
MVA transformer
800 kv transmission
lines
Slide 9
10. MWH Engineering - Guri Project Lessons
Record Turbine
Cast stainless steel
Turbine Rated
700 MW
W.E. Larson, R.W. Fazalare
J. Sun, R. Israelsen
Slide 10
11. MWH Engineering - Guri Project Lessons
Record Generator 800 MVA
1200 ton rotor Machine Hall is 28 m
wide. Two 700 ton
bridge cranes lift
1200 ton rotor.
O. Deniz
Slide 11
