It's the world's longest sea-crossing bridge: 55 kilometres of motorway spans the Pearl River Estuary in the South China Sea before dipping into an undersea tunnel. The Chinese President Xi Jinping has today officially opened the gigantic infrastructure linking Hong Kong, Macau and mainland China. A colossal engineering structure, involving the Bouygues Construction subsidiaries Bouygues Travaux Publics, Dragages Hong Kong and VSL for the construction of a 9.4-kilometre section.
A bridge of strategic importance 5714 prefabricated segments of 250 different types, laid down at the rate of 18 per day, shaft grouted friction piling method to cope with difficult ground conditions – a technical first in Hong Kong –, sea-based installations and specific logistical arrangements to maintain the waterways throughout the duration of the works... Some notable innovations for the construction of this extraordinary bridge structure. It is now possible to reach Hong Kong from the main cities of the Pearl River delta in 30 minutes, compared with four hours by land and one hour by boat. A real basis for stimulating commercial ties between the two sides of the crossing.
A positive health region is an attractive region that makes living together and growing old more enjoyable. Real estate developers play a key role in creating them! Provided that they seize the right opportunities!
The longest sea bridge in the world. After nine years of construction, the Hong Kong-Zhuhai-Macau bridge was officially opened today.
The summer of 2022 has sadly left its mark on the history of France. Some people see it as the clear consequences, others hear alarm bells ringing... With an unprecedented drought, repeated dramatic fires and record temperatures, France, like other countries around the world, is overheating! This fact highlights the vital and indeed health-giving role played by urban greening.
From Hyperloop to drone taxis, spectacular technological transport projects are flourishing. But what about the reality of future public transport for everyday life after the Covid crisis?
A knitted structure capable of supporting five tonnes of concrete? This is the insane project of the inventors behind Knitted Concrete technology.
In France, 1 in 4 people and 1 in 3 jobs are exposed to the risk of flooding, through overflowing watercourses or rising sea levels[1]. In more general terms, floods are a major natural hazard in several regions of the world. These risks are now accentuated by climate change and the increase in extreme weather episodes, including intense rain events in particular. In an urban environment, characterised by a strong increase in soil impermeability, these phenomena promote runoff and associated pollution and lead to congestion and flooding. In addition, urbanisation in flood-prone areas is a major economic and social issue for local communities. To meet these challenges, new approaches are being developed to provide better ways of living with water in cities.
‘To better understand and interpret the behaviour of tunnel boring machines in order to anticipate and solve technical problems within the industry is the subject of Mehdi Mahmoudysepehr’s doctoral research project. He is a PhD student at Chaire Construction 4.0. He tells us more about it below!
A first for France. In September, social housing in Nantes will be built using an industrial 3D printer.
On the pavements of our neighbourhoods, the cries of children are becoming increasingly rare. They are replaced by the noise of cars and hurried adults who no longer seem to know how to stop, wander or stroll... How is this harmful to the accessibility of our cities? And is this disappearance of children from the public space inevitable?
