Excavation de hard rock cavern pour l'ouest de l'île collecte des déchets et des installations de compactage sous le mont Davies sur l'île de Hong Kong.
3334 x 3364 px | 28,2 x 28,5 cm | 11,1 x 11,2 inches | 300dpi
Date de la prise de vue:
2 mars 1996
Lieu:
Hong Kong.
Informations supplémentaires:
Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.
On a small and crowded urban environment like Hong Kong Island, an underground waste disposal facility with waterfront access makes perfect sense. This hard rock cavern is being excavated under Mount Davies for the Island West waste Transfer Plant and, when completed, will handle around 100 tonnes of waste per day - about half of Hong Kong's daily output. The waste will be collected and compacted, then shipped to the New Territories for disposal in vast landfill sites. Constructing a tunnel or cavern is one of the most difficult and complex challenges faced by civil engineers and many completed tunnels are rightly considered to be technological masterpieces. In ancient times, the most active tunnellers were the Romans who created an extensive network of tunnels to carry water from mountain springs to cities and villages. They carved underground chambers and built elegant arch structures, not only to carry fresh water into the city but also to carry wastewater out. In modern times, using the latest tunnel construction technology, engineers regularly bore through mountains, under rivers, under seas and beneath huge cities. Longer and bigger diameter tunnels at much greater depth; bored through more demanding geology will undoubtedly be the challenge of the future. Life above ground, particularly in urban conurbations, has become increasingly congested and tunnels will provide some of the last available space for road, rail and metro transportation, water, solid waste, wastewater and sewage, power and hydropower stations and cables and communication lines.
