How much environmental care did it cost to build the 110 billion Hong Kong Joao Bridge?

Most importantly, the Hong Kong Joao Bridge is officially accessible. And look at how this bridge, which has been crowned as “one of the most environmentally demanding projects in our transport history”, has served as a model for marine development and environmental protection.

For three full hours and 30 minutes, this means the Hong Kong Joao Bridge, which is officially operated at 9 a.m. on 24 October 2018. The 55-km-long bridge, the island and the one-size-fits-all road, which runs through Pearl Sea, Hong Kong and Macao, has directly reduced the journey time to one sixth of the original one, to the world's attention.

First of all, we need Cope to see how big the bridge is. One of China ' s most technically complex projects, construction requirements and standards in the history of transport are the anti-typhoon class 16 and the earthquake class 8, known as a life expectancy of 120 years. As one of the world's largest trans-oceanic projects, the Hong Kong Joao Bridge has been hailed as one of the “Centro Project” and one of the seven wonders of the new world.

The blackboard below is focused, with the Hong Kong Joao Bridge, which has the “longest cross-sea bridge”, the “longest submarine tunnel”, and the “most advanced island construction technology”, one of the most environmentally friendly projects in our transport history.

Early planning of environmental issues

The relevant environmental issues were fully taken into account in our country well before the construction of the Hong Kong Joao Bridge. For example, during the construction period, the construction resulted in suspended float pollution, wastewater pollution, pollution from household waste and other waste pollution, and noise pollution. During the course of operations, road runoff and rainfall, noise from motor vehicles and car tail gas, as well as leakage from transport accidents, etc.

Even silt, because it is part of the ecological environment, is not suitable for transitional excavation and transfer, which is a technical difficulty for the bridge construction to meet the requirement of less than 10 per cent water resistance. In addition, the environmental issue that has been prominent since the construction of the Hong Kong Joao Bridge is the realization of the Chinese White Dolphin's “zero casualties, no move” commitment.

The crossing of natural ecological reserves is probably one of the biggest challenges in the construction of the Hong Kong Joao Bridge, where the Chinese white dolphins are the world's most endangered marine mammals and are known as “the great pandas in water”. Potential marine pollution risks associated with the construction of bridges, as well as sensitive noise environments, may affect the survival of marine life, including the Chinese white dolphins, and require special attention.

High standard of solution

So how can environmental standards lag behind? We have spent a lot of effort on environmental protection in the Hong Kong Joao Bridge project, and it is obvious that we are constantly trying to optimize the design of our programmes.

How can construction of the bridge be reduced to the extent that it is needed across the sea, where there must be a variety of water activities? The innovative construction of “building blocks” in our country, which is as large as 1,000 tons of bridges, more than 100 metres of bridge towers, and smaller than aggregating components, is made from the entire plant onshore, significantly reducing the time spent on construction activities at sea.

At the same time, the use of dredging vessels that generate fewer suspended materials; (b) Strictly require that all construction vessels meet environmental requirements; High environmental thresholds for wind gas emissions, noise monitoring, oil spills, dew, etc., for entering construction equipment; (b) Selection of new energy-efficient and environmentally sound ground-based strengthening technologies (crowded sand-plate technologies); (b) Establish and harmonize recycling and disposal of sewage and garbage close to disposal; (c) The division of noisy and quiet areas; Environmental protection contingency plans, etc., were implemented during the construction of the Hong Kong Joao Bridge.

Protect the Chinese white dolphins.

According to the Agency, the Hong Kong Joao Bridge has become an organic model for the integration of marine development and environmental protection. The most visible of these is the protection of the Chinese white dolphin habitat, which has won high domestic and international praise for the Hong Kong Joao Bridge. The most recent observations show that the number of Chinese white dolphins does not increase in comparison to the number before work begins, which is the best proof.

From assembly to quiet area, the construction of the Hong Kong Joao Bridge has minimized the impact on the marine environment and the living environment of the Chinese white dolphins, and high standards have achieved the “zero casualties, no move”. The Deputy Director of the Hong Kong Joao Bridge Authority, Yu Jing, stated that, since its construction, the bridge had been invested directly in the cost of ecological compensation for white dolphins of $80 million, associated environmental monitoring costs of $41.37 million, environmental consultants of $9 million and research on environmental issues of about $10 million, plus others totalling $340 million.

Breaking the artificial island proposition.

In either respect, the Hong Kong Joao Bridge is almost a case of subversive construction. In the typical case of artificial islands, where both the formation of a conversion hub (no islands are available) linking submarine tunnels to sea surface bridges and the rapid islanding of the natural environment, the dilemma has led to groundbreaking island, roll-out and bridge combination design innovations.

In the end, the super-stretched steel cylinders were used in the construction of the Hong Kong Joao Bridge as the legend of the artificial island's “China speed”. This new form of island-building has saved both time and the protection of the marine environment, and is of great ecological interest in comparison to the long duration of the work and the pollution of traditional quarries.

Post: On the second day of the Hong Kong Joao Bridge, the Hong Kong Joao Bridge became a witness to the three worlds' interlocking flight and was deeply proud of the remarkable environmental achievements made by the Hong Kong Joao Bridge.