Shanghai is prosperous

Chapter 333 Beautiful
In this situation, Du Jianfeng, who was driving, said in a nutshell, to be honest, although I have driven many bridges across rivers and seas, and there are even longer and more spectacular cross-sea bridges than this one, this is the first time I have crossed the Yangtze River by car Still, it's very exciting.

Teacher Yu said with a smile, Xiao Du, do you know why?

Because of what?Du Jianfeng asked.

Teacher Yu said that if this bridge were not in Shanghai, you might not have such deep feelings.Just because it is in Shanghai, you are from Shanghai, and you work and live in Shanghai, so you feel like you have another treasure in your home.

He laughed and said, the so-called saying that my hometown is good is actually the reason.

Everyone thinks it makes sense.Wang Yiyuan thought for a while and asked, why do I still feel that the design of the bridge deck here seems to be very special, and it looks a little different from ordinary bridge decks?
Ren Xueming smiled and said, Xiao Wang, did you see it?The deck of the Yangtze River Bridge is specially designed to have undulating shapes, and is generally in a reverse "S" shape. According to reports, it can resist seventeenth-level winds.

The car went up and down on the bridge.When they reached the main bridge deck, they saw many cars parked on the emergency parking belt, and many people were surrounded by the guardrail of the bridge, admiring the spectacular scenery of the Yangtze River estuary.

Ren Xueming became interested and said, Lao Du, you pull over the car, and we will go down and have a look.

Du Jianfeng hesitated, saying that parking on the bridge is not allowed by the traffic regulations, and it is very unsafe.

Teacher Yu smiled and said, it's okay to go and have a look.However, the procedures that should be done are indispensable.Xiao Wang, go to the back and set up the tripod at a position a little far behind the car. Let's play a side-kick.

Du Jianfeng smiled and said, Mr. Yu is still well-informed.Be careful, Xiao Wang, the tripod is in the small hole on the left side of the trunk, and look at the vehicles behind and beside.

Park the car in the emergency parking strip and set up the stand.A group of people stood on the side of the guardrail of this majestic cable-stayed bridge, watching the surging river beside it, rolling towards the East China Sea not far away.

the river is long and tempestuous, it was like a hero.The vast Yangtze River rushes through thousands of mountains, flows through continuous plateaus, and flows through thousands of miles of flat rivers, rushing all the way into the East China Sea.The waves in the river and the swell in the sky can be seen everywhere, which is very spectacular.

The lonely sail is far away, the blue sky is gone, only the sky of the Yangtze River can be seen.But who would have thought that on the coast of the East China Sea and at the mouth of the Yangtze River, the three islands of Chongming, which are like graceful and beautiful girls, can only implicitly look at the bustling city on the other side because of the natural moat in the river?
Similarly, no matter how much Shanghai likes the three fair ladies in Jiangzhong, it still can't fly over the Yangtze River and join hands with them?

Today, a majestic tunnel bridge is quietly born like a beautiful rainbow, spanning the great river and connecting Shencheng Islands.

Wang Yiyuan's mind also became wider, and he couldn't help feeling the urge to scream up to the sky and jump, in order to release the invisible pressure of the day.

Du Jianfeng looked at the time on his mobile phone and said, including our stopover time, the driving time for the entire tunnel bridge to cross the Yangtze River is less than 10 minutes. Thinking about the difficulties we had in coming to Chongming Island in the past, it is really not too convenient now up.

Teacher Yu sighed and said that for a long time, the transportation between downtown Shanghai and Chongming Island was the Yangtze River ferry.However, ferries are easily affected by the weather. They have to stop sailing in bad weather such as strong winds, big waves, and heavy fog. For ten days a year, the traffic between Chongming and the city is completely cut off.

He said that the Yangtze River Tunnel Bridge not only greatly shortens the time from downtown Shanghai to Chongming Island, but also makes crossing the Yangtze River rain or shine.It ended Chongming Island’s history of not having a land passage to the mainland for more than 1000 years since it was formed. It is even more so that the lifeline is connected by land, and a thoroughfare for Chongming Island’s rapid development has been opened.

Ren Xueming said that according to the plan, the Yangtze River Tunnel Bridge is not only a cross-river channel for Chongming, but after the opening of the Chongqi Bridge, it can go north across the river to Qidong, Jiangsu. It is also an important part of the G40 National Expressway Shanghai-Xi'an Expressway.

Du Jianfeng echoed that the completion of the Shanghai Yangtze River Tunnel Bridge will improve the structure and layout of Shanghai's transportation system, accelerate the economic integration of the Yangtze River Delta region, better drive the economic development of the Yangtze River Basin and even the whole country, and enhance Shanghai's comprehensive competitiveness in the national economy.

Teacher Yu said, yes.The completion of the Shanghai Yangtze River Tunnel Bridge has improved the cross-river traffic conditions at the Yangtze Estuary, optimized Shanghai's transportation network system, and opened up the national coastal transportation channel. Development will certainly play an important role.

He said that the road is open, and the number of tourists who go to Chongming Island to enjoy the beautiful scenery and farmhouses will definitely increase explosively.According to the newspaper, within a week after the opening of the Yangtze River Tunnel and Bridge, the number of tourists visiting Chongming Island exceeded 30.

Wang Yiyuan leaned over to look at the guardrail, and he noticed the small lamps installed on the bridge deck anti-collision guardrail.

This is the 'fog lamp'. In heavy fog, it will emit a flashing red light to guide the vehicle to drive safely.This is the first time in Shanghai bridge.Du Jianfeng explained.

There are also guardrails that are very different.He laughed and said that in order to ensure safety, the anti-collision barriers of the Yangtze River Bridge are equipped with semi-rigid anti-collision barriers for the first time, and vehicles will generally not fall into the river after a collision.There is also an elastic structure between the cross bar and the column, which can prevent the vehicle from hitting other vehicles after rebounding, and avoid secondary accidents.

Teacher Yu pointed to the outermost side of the bridge deck and said, the outermost side of the bridge is the reserved rail transit line.The combination of road and rail is also the first in the world.

Du Jianfeng asked, how did I hear that there was no rail transit space reserved at the beginning of the design and construction of the Yangtze River Bridge?

Ren Xueming said that rail traffic is the load mode of railways, which is very different from road traffic. It is very difficult to arrange on the same beam surface, which is undoubtedly a huge challenge.Although there are examples of rails and highways sharing a bridge at home and abroad, most of them operate in two layers.

He said that under the conditions of thermal expansion and cold contraction, the steel rails and the highway bridge deck have very different degrees of expansion and contraction. The deformation of the bridge deck can easily break the steel rails, and the expansion and contraction force of the steel rails is transmitted to the bridge deck, which will also damage the life of the bridge deck. .

Teacher Yu said, I heard that some teachers in the school participated in this research.The final optimization plan is to transform the emergency parking lane on the original bridge into a reserved space for the track and place it on the outside of the bridge, forming the world's first bridge with integrated public rail.

He also revealed that the move to reserve rail traffic for the Yangtze River Tunnel Bridge is forward-looking.In the absence of precedents to follow, the public rail coplanarity was finally realized, and many cutting-edge scientific research results and process and quality inspection standards with great promotion and application value were obtained.

After a short stay, we started to set off again.After crossing the main bridge deck, you can vaguely see Chongming Island on the other side.When you drive to the end of the expressway, you will be at the Chenhai Highway Toll Station, where you have to pay 50 yuan.

Wang Yiyuan said with a smile, the 26-kilometer road costs a total of 50 yuan. Is this the legendary land scraping?If you want to get rich, build roads first, this sentence is really good advice!
Teacher Yu said with a smile that the one-way toll for crossing the Yangtze River Tunnel Bridge is 50 yuan, which is a bit expensive.But still provides a lot of convenience, worth it.

After leaving the toll booth, the four of them stood on the side of the road, overlooking the spectacular scenery of the Yangtze River Bridge.As the sky darkened, the lights on the bridge gradually came on.

Under the bridge, the side near the Yangtze River adopts a yellow light band, and the side facing the sea adopts a blue light band. From a distance, you can only see the ten-kilometer-long bridge, which outlines a "boundary of rivers and seas" light band on the sea. .

The boats on the river swim to and fro.Under the reflection of night and light, the effect of the beautiful line of the Yangtze River Bridge itself is even more colorful, radiant, beautiful and beautiful.After the four got on the car, they turned around and re-entered the Yangtze River Bridge to Changxing Island.

　There was an error uploading yesterday, sorry.I have just started work, and the time is really tight, and the update time cannot be guaranteed. It is estimated that it will be better after the Lantern Festival.Thank you for your love.

　　
　
(End of this chapter)