China to Build the World’s Longest Cross-Sea Bridge
A ceremony for laying the foundation stone of the
Hangzhou Bay Bridge was held on June 8 in Cixi of the city
of Ningbo in east of Chinas Zhejiang
Province.
The 36-km-long bridge, from Haiyan in
the north to Cixi in the south, will be the longest
cross-sea bridge in the world. When completed, it will
shorten the land distance between Ningbo and Shanghai by
over 120 km.
The project, to be completed in
2008, involves 11.8 billion yuan (equivalent to US$ 1.42
billion) in total investment. All the capital will be raised
by enterprises in Zhejiang Province, with 50.25 percent
coming from private business.
According to Wang
Yong, chief director of the project, construction of the
bridge, on the basis of a decade of design and feasibility
studies, has created many precedents. It will be
Chinas first digital bridge, equipped with a central
monitoring system, with a pair of monitors installed at
every 1-km section.
A 10,000-square-meter
platform, which is 14 km from the southern bank, has been
built in the sea. The first of its kind in China, it is
currently the projects construction base and will
serve as a rescue facility for sea transportation service
and a tourist attraction after the bridge is
completed.
The design of the bridge presents
novel features. The planners have integrated engineering and
scenery by borrowing the aesthetics of Sudi Dike on the West
Lake in Hangzhou and taking into account the complicated
hydrological environment at Hangzhou Bay. Shaped like the
letter S, the bridge follows graceful, natural lines. With
arched openings for navigation, the bridge presents a
scalloped side-view.
To relieve doubts that the
bridge might block the spectacular Qiantang River bores,
hydrologists, using advanced equipment, have made careful
studies of the rivers flow and the tides, as well as
the terrain of the seabed in Hangzhou Bay. They found that
the bores begin at Gaoyangshan, which is more than 30 km
upstream from the bridge. This proves that the bridge will
not stem the turbulent bores, which provide a rare scene of
worldwide wonder and a popular tourist
attraction.
Upon completion, the bridge is
expected to expedite economic integration of the Yangtze
River Delta and turn Ningbo into a central city on the
deltas southern border. With its resources and the
potential of its harbor economy fully tapped, Ningbo, the
largest port in China, will become a major component of the
Shanghai international navigation center, and its status as
a seagoing container hub of the Northeast Asian navigation
center will be reinforced.
To facilitate the
Ningbo-Shanghai-Hangzhou through communication, the bridge
is expected to spur the development of the Hangzhou Bay rim
industrial belt. It will link up existing development zones
and industrial parks of various types to form three large
coastal, bayside and roadside and roadside industrial
belts.
According to experts, Chinas
bridge construction has reached advanced world levels. The
Hangzhou Bay Bridge will become a model for the building of
other cross-sea bridges in China. Plans for a number of
cross-sea bridges, such as the Bohai Bay Bridge, Huangdao
Island Bridge, East China Sea Bridge and Zhoushan Island
Bridge, have already been placed on the agenda. Combined
investment in these projects will exceed 100 billion yuan.