October_1967 — Page 36

Sha Tin treatment works & pumping station Wan Hin & Co. Ltd., Hong Kong

Stage tunnels & Tau Pass culvert

Hsin Chong-Kumagai-Gosho, Hong Kong & Tokyo

Lower Shing Mun dam Nishimatsu

Construction Co. Ltd., Tokyo

Tai Po Tau intake & pumping station

Paul Y Construction Co. Ltd., Hong Kong

Sentab-Gammon,

River Indus pumping station & *Shek Kip Mei service reservoir Winsome Co. (E & B) Ltd., Hong Kong Stage II tunnels

Stockholm & Hong Kong Plover Cove dams & Tai Mei Tuk pumping station and *Lion Rock tunnel Societe Francaise d'Entreprises de Dragages et de Travaux Publics, Paris Irrigation dams at Hok Tau & Lau Shui Heung and *Lion Rock service reser- voirs (site formation)

Gammon (Hong Kong) Ltd.

II & Indus

Automatic Control En-

Stewarts &

gineering Ltd., England Steel pipes Stage I Lloyds Ltd., Scotland

Steel pipes *Indus & *Lion Rock

Sumitomo Shoji Kaisha, Osaka Steel pipes *Ho Man Tin

Jardine

Engineering Corporation, Hong Kong Inflatable dams The Firestone Tire &

Rubber Co., California

Joint Consulting Engineers

Binnie & Partners, London S.W.1. Scott Wilson Kirkpatrick & Partners,

Hong Kong.

*Designed and supervised by Water Authority, Public Works Department

Tau Pass

culvert &

tunnel

112

7,200

Tai Po Tau to

Lower Shing

Mun

10-22

36,900

Branch tunnels

(3 no.

52-102

16,700

Draw-off

tunnel

82-102

3,700

Spillway

tunnel

18

1,100

*Lion Rock

tunnel

30

Shafts

(10 no.)

7-15

4,700

230-360 (depth)

EAST-WEST SYSTEM

Section

Dia. (ft.)

Length (ft.)

Plover Cove to

Tai Po Tau 26-30

31,700

Access tunnels

(3 no.)

17

4,700

Nam Chung

to Plover

Union

Cove

12

12,500

Lau Shui

*Tsz

Heung to

Hok Tau

812

4,100

Hok Tau to

main tunnel

12

5,500

Plover Cove to

Tolo Channel

8/2

Shafts (3 no.) 82-10

400 50-340 (depth)

Main Plant Suppliers

Treatment plant

The Paterson En-

gineering Co. Ltd., England Pumping plant Stage I

(3)

Vickers-

Design

Pump Sets

Armstrongs (Engineers) Ltd., England

(4)

Pumping plant

Stage II

Sulzer Bros.

10 X 20 m.g.d.

(London) Ltd., England

4 X 25 m.g.d.

Indus

Allen

Pumping Stations

Location

River Indus Tai Mei Tuk Plover Cove

Capacity 200 m.g.d. 75 m.g.d. 160 m.g.d.

(additional temporary Tai Po Tau

5 X 25 m.g.d. + 1 X 35 m.g.d. pumping-out plant)

60 m.g.d.

Supply Basin

20 m.g.d.

Sha Tin

60 m.g.d.

4 X 15 m.g.d. + 2 X 72 m.g.d. 4 X 5 m.g.d. 4 X 15 m.g.d. +2 X 72 m.g.d.

Treatment Works (Sha Tin)

Capacity

Clarifier capacity (4 no.)

Filters (22 no.)-

effective area

Filtered water-

tank storage capacity

Chemical house-

total capacity

80 m.g.d. 8 m.g.

44,000 sq. ft.

7/2 m.g.

5,000 tons

Lion Rock Reception Resevoirs

*High Level

23 m.g. TWL 375 ft. P.D. 17 m.g. TWL 335 ft. P.D.

Service Reservoirs

*Lion Rock service reservoirs Construction Co., Hong Kong

Wan Shan service reservoir Kwan On, Hong Kong

*Cross-harbour main

Healy Tibbitts

Construction Co., California, & Paul Y Construction Co. Ltd., Hong Kong

Pumping plant

Gwynnes Pumps Ltd., England Electrical equipment Stage & Indus The General Electric Co. Ltd., England Electrical equipment

J

Stage || Associated Electrical Industries Ltd., England

Control & measuring equipment Stage

A.C.E.-Hartons Ltd., England Contról & measuring equipment Stage

APPENDIX 'C'

References

(1) Drust, T.A., Trounson, C., Bressler, B.P., Eastaff, D.J. & Riley, R.W. "Some aspects of Stage I of the Plover Cove water scheme"

(Proc. Eng. Soc. of H.K. 1964-5, p.5.1.)

(2) Ford, S.E.H. & Elliott, S.G. "Inves- tigation & design of the Plover Cove water scheme"

(Proc. Instn. Civ. Engrs. 1965, 32, p.255; disc. 1966, 35, p.342)

Cove

Ho, C. "Lower Shing Mun main dam" (Proc. Eng. Soc. of H.K. 1965-6) Elliott, S.G., Ford, S.E.H. & Oules, J. "Construction of the Plover dams" (presented at 9th Int. Cong. Large Dams, Sept. 1967, Istanbul) (5) Lamb, D.W. "Decomposed granite as fill material with particular reference to earth dam construction" (H.K. Joint Group, Symp. on H.K. Soils, 1962, p.57)

(6)

Holt, J. K. "The permeability of de- composed rock fill deposited below water in the Plover Cove main dam" (presented at S.E. Asian Reg. Conf. on Soil Eng. April 1967, Bangkok)

*Low Level

*Shek Kip Mei

30 m.g.

TWL 300 ft. P.D.

*Ho Man Tin

East

30 m.g.

TWL 220 ft. P.D.

*Tsz Wan Shan

15 m.g.

TWL 295 ft. P.D.

Trunk Mains

Dia. (ft.)

Length (ft.)

*Sha Tin to

Kowloon

Rock

(incl. Lion tunnel)

42, twin-4

6,000 (each)

*Kowloon

connec-

tions

*Cross Habour

submarine

Various 2-42

160,000

pipeline

Notes

TWL

-

32

5,000

P.D.

= Top water level

Principal datum

cusecs cubic feet per second

m.g.

m.g.d.

V.

million gallons (Imperial) million gallons per day Volts

*Designed and supervised by Water

Authority, Public Works Department

APPENDIX 'B'

Main Contractors For Civil

Engineering Works

Main site investigation

Ltd., London

Soil Mechanics

Outlet at Plover Cove is now pouring in water at the rate of 1,200 cu. ft./sec.

60

Far East Architect & Builder October, 1967