MWH Engineering - Guri Project Lessons

Slide 2

Preparing Venezuela for the 21st Century

Guri – 10,000 MW Caroni River The Guri Hydroelectric complex provides the most economical power in the world. Owned by Edelca, a subsidiary of CVG.

CORPORACION VENEZOLANA DE GUAYANA CVG, The Venezuelan Guayana Corporation was created by the Venezuelan government to develop Guayana for the Venezuelan people.

Gravity Dam: Deflection 22 mm Seepage 10 litres per second

MWH Engineering - Guri Project Lessons

Slide 3

Staged Construction

1980 1986

1982

MWH Engineering - Guri Project Lessons

Slide 4

52 m Guri Dam Raising

Jan Veltrop R.P. Wengler Dr. W.Y. Shieh Dr. C.H. Yeh

1984 Monolith width: First stage 21 m Final stage 28 m

MWH Engineering - Guri Project Lessons

Slide 5

52 m Guri Dam Raising

MWH Engineering - Guri Project Lessons

Slide 6

52 m Guri Dam Raising

Investigate interaction of old & new dams using finite element analysis

Temperature control of new concrete

ICOLD Bulletin

Dr. W.Y. Shieh Dr. C.H. Yeh

MWH Engineering - Guri Project Lessons

Slide 7

Spillway Aeration

8% air in boundary layer protects against cavitation

Dr. C.Y. Wei Dr. V. Semenkoy

MWH Engineering - Guri Project Lessons

Slide 8

Intake Design – Record Roller Gates

Intake

Hydraulic Gate Hoist

Plan

Roller Gate Valve

Dr. J.E. Lindell I.T. Laczo

MWH Engineering - Guri Project Lessons

Slide 9

Ten 700 MW units Hall 25.25 m wide 364 m long

Two 700 ton cranes Single Phase 268 MVA transformer 800 kv transmission lines

Record Powerhouse

operator

MWH Engineering - Guri Project Lessons

Slide 10

Record Turbine

Cast stainless steel Turbine Rated

700 MW

W.E. Larson, R.W. Fazalare J. Sun, R. Israelsen

MWH Engineering - Guri Project Lessons

Slide 11

Record Generator 800 MVA

Machine Hall is 28 m wide. Two 700 ton bridge cranes lift 1200 ton rotor. O. Deniz

1200 ton rotor

MWH Engineering - Guri Project Lessons

Slide 12

800 kV Transmission Line

4 conductor bundles

MWH Engineering - Guri Project Lessons

Slide 13

Guri Embankment Dam

MWH Engineering - Guri Project Lessons

Slide 14

Guri Embankment Dam

MWH Engineering - Guri Project Lessons

Slide 15

Guri Embankment Dam