Hong Kong – Zhuhai – Macau Bridge (HZMB)

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ROADWAY BRIDGES 20 - ISSF STAINLESS STEEL IN BRIDGES Hong Kong – Zhuhai – Macau Bridge (HZMB) Location: Hong Kong, China Crosses: Lingdingyang of Pearl River Estuary Type: cable-sayed bridge for roadway Opened in: 2018 Materials: EN 1.4362 rebar, ROLDAN Stainless steel products: rebar Structural designer: Arup Photographs: courtesy of Cedinox magazine More information: cedinox.es Hong Kong - Zhuhai - Macau Bridge. Picture from Shutterstock. Discover more possibilities with stainless steel in infrastructure ROADWAY BRIDGES 21 - ISSF STAINLESS STEEL IN BRIDGES Hong Kong - Zhuhai - Macau Bridge. Picture courtesy of Cedinox Magazine Why stainless steel? Stainless steel reinforced bars have proved to be the right, intelligent and cost-effective solution when used in an aggressive atmosphere or where access to areas potentially needing repair is difficult or even impossible. To build this mega-structure, stainless steel rebar made in Spain by ROLDAN has been used to achieve the highest quality standards. Hong Kong - Zhuhai - Macau Bridge. Picture courtesy of Cedinox Magazine History construction began in 2009 and it has opened in The bridge is 55 km long, and the project also A landmark bridge linking Hong Kong - Zhuhai – 2018. When this magnificent bridge has been opened includes the construction of two artificial islands and Macau is playing a strategic role and strengthening to traffic it only takes 40 minutes by car to go from a dual 3-lane tunnel that is the longest in the world the economic development of this area. The Zhuhai to Hong Kong instead of 3 and a half hours. of its kind. Discover more possibilities with stainless steel in infrastructure.

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Analysis of Tidal Prism Evolution and Characteristics of the Lingdingyang
MATEC Web of Conferences 25, 001 0 6 (2015) DOI: 10.1051/matecconf/201525001 0 6 C Owned by the authors, published by EDP Sciences, 2015 Analysis of Tidal Prism Evolution and Characteristics of the Lingdingyang Bay at Pearl River Estuary Shenguang Fang, Yufeng Xie & Liqin Cui Key laboratory of the Pearl River Estuarine Dynamics and Associated Process Regulation, Ministry of Water Resources, Guangzhou, Guangdong, China ABSTRACT: Tidal prism is a rather sensitive factor of the estuarine ecological environment. The historical evolution of the Lingdingyang water area and its shoreline were analyzed. By using remote sensing data, the evolution of the water area of the bay was also calculated in the past 30 years. Due to reclamation, the water area was greatly decreased during that period, and the most serious decrease occurred between 1988 and 1995. Through establishing the two-dimensional mathematical model of the Pearl River estuary, the tidal prism of the Lingdingyang bay has been calculated and analyzed. The hybrid finite analytic method of fully implicit scheme was adopted in the mathematical model’s dispersion and calculation. The results were verified though the method of combining the field hydrographic data and empirical formula calculation. The results showed that the main tidal entrance of the bay is the Lingdingyang entrance, which accounts for about 87.7% of the total tidal prism, while Hong Kong’s Anshidun waterway accounts for only 12.3% or so. Combining the numerical simulations and the historical evolution analysis of the water area and tidal prism, and compared with that in 1978, it showed that the tidal prism of the bay was greatly decreased, and the reduced area was mainly the inner Lingdingyang bay, which accounted for 88.4% of the whole shrunken areas.
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