CBI member Arup has published its 2018 edition of The Arup Journal. The journal contains two key features that may be of interest to China Direct readers.
Arup has been leading on major upgrades to Hong Kong’s sewage system, providing nearly 6 million Hong Kong residents with a modernised and future-proofed sewage system, and has also delivered the new Singapore MTR Downtown Line.
Case study: Sewage treatment works with a social impact
Since 2007, Arup has been advising on the Harbour Area Treatment Scheme (HATS), which aims to restore Hong Kong’s Victoria Harbour to 1980s levels of pollution. HATS was commissioned by the Hong Kong government in 2015, and Arup delivered on the project last year.
Victoria Harbour used to provide the backdrop for the Cross-Harbour Swim, inaugurated in 1906. The swim was one of the city’s largest sporting events but was halted in 1978 because the harbour water was deemed too hazardous to swim in. At the time, up to 2 million m2 of sewage, with only a very minimal level of treatment, was discharged straight into the harbour every day, with serious consequences for the environment. As well as the race being abandoned, nearby sand beaches had to be closed due to poor sanitation.
Arup was the lead consultant on HATS, and in October 2017 the beaches finally re-opened whilst 3,000 people took to the harbour water to race in the first Cross-Harbour Swim for 39 years.
Arup was responsible for delivering a new sewage processing plant and bringing the entire city’s sewage capacity up to 4 million m2 per day. This was achieved by setting up one of the biggest plants of its kind on Hong Kong’s Stonecutters Island and diverting Hong Kong’s sewage from Victoria Island towards this new centre.
A detailed case study can be found here on page 5.
Case study: A new phase for transport in Singapore
Arup has delivered one of the most technically challenging projects ever undertaken in Singapore, the Downtown Line for the city-state’s metro system.
By 2030, the Singapore government aims for 80% of households to be within a 10-minute walk of a metro station. A key part of the strategy for achieving this is a significant expansion of the city-state’s Mass Rapid Transit (MRT) system, a vital part of its transport infrastructure that is used by more than three million people every day.
In October 2017, the final phase of the latest line to be added to the network was opened. One of the most technically challenging underground projects ever undertaken in Singapore, the Downtown Line Stage 3 (DTL3) comprises 16 stations linked by 21km of tunnels. It connects the central business district with the eastern residential areas of Bedok and Tampines.
Arup’s involvement in the project began in 2008, when the firm undertook alignment design for the entire length of DTL3.
The company had to divert a river, design a new type of siding and introduce a new steel in-forced concrete that had never been used in South-east Asia.
Read more about this ground-breaking project here on page 32.
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