and the resident engineers.
Due to the presence of silt the station was sited close to the original seashore line, clear of deposits, to avoid possible com- plications with the erection of foundations and the difficulties which could have been encoun- tered during construction of the underground structures. Though most of the foundations and other structures have been er- ected on 3,600 x 110 ton Fran- ki piles, from 20 to 75 ft. in depth, some of the footings, in- cluding those for the 425 ft. high reinforced concrete chimney, were built on a solid foundation of rock.
Steel framing
Erection of steelwork. Pingon tower crane on left; Coles mobile crane in foreground; Butters 25-ton and 35-ton derrick cranes at rear.
The station is constructed of steel framing, a large percentage of which is high tensile steel, with concrete casing. Cladding is brick panel walls and reinforced con- crete hollow block roofs. The boiler house for the first two units is faced in Galbestos, a P.V.C. coated cladding and patent glazing, while the future four boilers will be of the outdoor type capable of burning any fuel, in- cluding naphtha. The structural steel has been designed and fabricated by Redpath Dorman Long Ltd., Glasgow;
about 8,000 tons have been used for the project.
The reinforced concrete chimney, 425 ft. high, 40 ft. in diameter at the base and 19 ft. at the top, was design- ed by Tileman & Co., Ltd., London, and erected by its Australian subsidi- ary. The design data was based on re- commendations contained in a paper by S.E. Faber and G.J. Bell, entitled
"Typhoons in Hong Kong and Build- ing Design". The upper 325 ft. of the chimney is designed for 93 lb. pres- sure which is equivalent to a pressure produced by severe typhoons with wind velocity of 160 m.p.h.
The screen house which houses seven 73,000 g.p.m. water pumping and screening units is situated 80 ft. off the edge of the seawall. Prior to
EBNY SWITCH HOUSE
Typical cross-section of “A” power station
Far East BUILDER, October 1968.
HHHHE
SOLER HOLDE
111 1
430 BC.C
OBRET
35