Fuxia high -speed railway has made new progress again!

The Anchi Bay Bridge has no rails.

Yesterday, the Fuxia High -speed Railway Bay Bridge completed the construction of no orbital construction. This is the first time in the process of my country's high -speed rail construction process to achieve no rails on the cross -sea cable bridge. Target.

The Anchi Bay Bridge is one of the control projects of the Fuxia high -speed rail. The total length is 9.46 kilometers. Among them, the cross -sea area section is 1.56 kilometers. The main bridge is the double tower and double cable semi -floating system steel mixed bidding bridge. It is reported that this is the first time that my country ’s high -speed rail construction has laid a no -orbital orbit on the cross -sea cable -catch bridge. After being put in, it can achieve a high -speed rail train with a speed of 350 kilometers per hour. second.

It is understood that the high -speed rail rails are divided into two forms: "there are 砟" and "no" orbit. In contrast, the flatness of no orbit is higher and stable. And through the "no" orbit, "like the flat ground." However, due to technical bottlenecks, most of the large -scale high -speed rail bridges in China are mostly rails.

According to the relevant person in charge of the China Railway Construction Bridge Bureau, which is responsible for the construction of the project, the requirements of the construction process and settlement control of the construction process and settlement control of the bridge when laid the "speed limit point" of the construction process and settlement control. Install a variety of sensors in the main bridge section, monitor the bridge deformation data of different temperatures and periods, and after multiple analysis and verification, the construction of no orbit is finally achieved. Measurement problem.

The Fuxia high -speed rail is the first domestic high -speed rail, with a design speed of 350 kilometers per hour and a total length of 277.42 kilometers. After opening to traffic, the itinerary from Xiamen to Fuzhou will be shortened to within one hour, and it will provide strong motivation for the province to build the "one -hour economic circle" in the southeast coast.

No orbit.

>> Revelation

Domestic artifacts "anti -wind and stability"

The Fuxia High -speed Railway Bay Bridge is located in the Jinjiang River. It is located in the southeast coastal area. The monsoon and typhoon weather have a greater impact on the safety of the bridge driving. The builder adopts the domestic damper "wind resistance to maintain stability" to ensure that the bridge is stable when the train is stable -set a external damper and two end linter on each cable cable in the main bridge of the bridge. When a high -frequency vibration is generated, the damping device can offset the vibration and ensure that the cable cable is stable. At the same time, a damping device is also installed in the lower part of the main bridge steel beam to resist the rapid large displacement caused by the earthquake.

(Text/Tu Xiamen Daily reporter Zhang Jian correspondent Li Yitong Zhang Wei Fanpeng)

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