Do you know the Zhengyu high -speed rail, do you know?

Today, the Zhengyu high -speed rail, which has been called, has finally been connected throughout the board, and has long been immersed in the "joy of the city".

It stands to reason that as a Nanyang native who has entered the high -speed rail era in 2019, it should be humiliated and laughed at the wind and clouds. Why is it so emotional?

It turns out that this is a rare "subway" high -speed rail in the world. The Chongqing section of the Zhengyu high -speed railway, and the passenger's journey of over 92%is in the tunnel;

This is a "quality" high -speed rail that meets the high -quality life needs of "Nanyang Hu Spicy Soup in the morning, Chongqing Shabu Smart Hot Pot";

This is still a "hope" high -speed rail that contains the mutual benefit of our city ...

Today, please follow the reporter's strokes to understand the uniqueness of this high -speed rail.

Nanyang Highlight

On May 14, 2018, a high -risk long -risk long -risk long -risk tunnel in the Henan section of Zhengyu high -speed railway -Fangcheng Qifengshan Tunnel across the board. The tunnel is located in the eastern section of the Funiu Mountains. It crosses four faults. There are large crushing bands, rock -soluble melting water, and diverted mud, high safety risks, and high technical difficulty.

Rare in the world

The Chongqing section of the Zhengyu high -speed rail is a complex and dangerous mountain high -speed railway in my country with a ratio of more than 98%of the bridge tunnel. It is a rare "subway" high -speed rail in the world. Its total mileage is about 184 kilometers, of which nearly 170 kilometers of tunnels and 10.8 kilometers of bridges, and road bases like plains are only 3.3 kilometers. In other words, more than 92%of passengers are in the tunnel.

Asia's longest

The small Three Gorges Tunnel with a length of 18.9 kilometers takes only 3 minutes and a half minutes. This is the longest speed of 350 kilometers per hour in Asia. It is also a national -level high -risk tunnel. You know that for the three and a half minutes of fast, the survey, site selection, and design have been for several years, and the construction lasted 3 and a half years.

China's first

The 32 bridges of the Chongqing section of the Zhengyu high -speed rail, more than one "China's first".

The Daning River Double Line Bridge, China's first large -span high -speed railway medium -style steel pipe arched coated concrete parallel arch bridge.

In Yunyang County, Chongqing, the Pengxi River Multi -Line Bridge in Pengxi River in the "First Domestic High Speed ​​Railway Bridge", the bridge pier is wearing a "bulletproof coat" to prevent travel ships from hitting the bridge pier, and the bridge.

In Fengjie County, Chongqing City, "China's first high -speed rail no -rail -rail arched bridge" -Meixi River Double Line Bridge.

The world's largest cross

The Meixi River Double Line Bridge is located in Fengjie County, Chongqing City, with a total length of 687.8 meters and a main span of 340 meters. At the time of construction, it was not only the largest bridge of the Chongqing section of the Zhengyu high -speed rail, but also the world's largest high -speed railway no -rail -rail -free rail arch bridge. The main arch of the bridge is split into 48 hanging units, and each unit weighs more than 130 tons.

Bridge curve radius 1400 meters

Zhengyu's high -speed railway across the Xulan High -speed Railway Bridge is a key control project of the Henan section of Zhengyu's high -speed rail. The bridge is a single tower and double cable surface curvy bridge. The bridge is 341.5 meters long, the tower column height is 88.94 meters, and the bridge has a curve radius of 1400 meters. The bridge surface is not at the same level. The eccentric distance is 84.7 cm. When it was completed, the high -speed railway bridge with the smallest domestic curve radius, the largest longitudinal slope, and the most eccentric ball hinge.

The pier pile is more than 60 meters underwater in the water

The Pengxi River Multi -Line Bridge is located in Huangshi Town, Yunyang County, Chongqing. It is 741.6 meters long. It is the key, difficult point, and controlling project of the Chongqing section of the Zhengyu high -speed rail. The deepest part of the piles of the bridge is more than 60 meters below the water.

The horse transportation team and "back husband"

As an electrified high -speed railway, it has high requirements for the quality and power supply reliability of power, and it is necessary to ensure sufficient power as energy support. During the construction of the Zhengyu high -speed rail, the State Grid Nanyang Power Supply Company undertook the construction project of the 4 -section of the Nanyang section of the Zhengyu high -speed rail, a 220 kV fogging power station, and a 110 kV power station construction project. In March 2018, the eight construction sections started at the same time, and more than 1,000 electricity builders went to the front line. Half of the new routes are located in mountains and hills. The high -speed rail power builders even invited the horses transport team to rush to work.

In the Three Gorges Reservoir area, in order to build the Daning River double -line bridge on the cliffs on both sides of the strait. Since April 2017, more than 40 Chongqing "back husbands" and several horses have been done for 20 months before they have been transported enough Materials of the trail and ropeway. At the beginning of 2019, the freight ropeway was finally repaired, and the "back husbands" were glorious to complete their mission. The large -scale machinery ropeway of the bridge repair of excavators and large cranes to the mountainside is "on -the -job", and the progress of the bridge has accelerated.

Behind this Zhengyu High -speed Railway with the mountains and the waterfront bridge, there are countless sweats and labor behind the gorgeous "black cool dazzling" technology.

Reporter Yu Huan

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