Another road-rail dual-use cross-river bridge is coming!

Recently, there have been a series of rumbling noises in the Longxing Bridge project in Nanchang, JiangxiRotary drilling rigThe drilling construction began, which marked that the joint construction section of the Yangzizhou Ganjiang High-speed Railway Bridge of the Changjiu High-speed Railway officially entered the main construction stage.

The Changjiu high-speed railway starts from Lushan Station in Jiujiang City in the north and ends at the Hejiacun Line of the Changjiang-Jiangxi High-speed Railway, with a total length of 137.72 kilometers. The bridge-tunnel ratio of the whole line reached 82%, with a total of 58 bridges and 21 tunnels.

Among them, the Longxing Bridge in Nanchang City is a shared passage between the Changjiu high-speed railway and the North Second Ring Road of Nanchang City across the Gan River, and is a long-span road-rail joint bridge integrating three modes of transportation: high-speed railway, urban expressway and urban trunk road. The total length of the bridge is 18.95 kilometers, including 4.957 kilometers of the joint construction section of the road-rail.

The Sany SCC850A-6 crawler crane participating in the construction of this project is responsible for lifting the barrel and placing it in the designated hole after the rotary drilling rig drills the hole, laying a solid foundation for the construction of the bridge.

After the rotary drilling rig started operating, a large amount of waste slurry sewage and mud-containing drilling slag were produced every day, and there was rain in Nanchang, so the construction site became muddy. In the face of the harsh construction environment, the advantages of the SCC850A-6 have been brought to the extreme.

The four-wheel belt of the SCC850A-6 is equipped with 800mm reinforced track shoes, which can walk like walking on flat ground, without leveling the road, and the site adaptability is good. The weight of the whole machine is 75.5t, the maximum lifting torque is 358t·m, and the lifting performance is strong.

Master Xiong, the operator, said: "This car is very comfortable to use, very stable to operate, and the rotation performance is also good." In recent years, I have basically driven Sany cars, and the project party has a high degree of recognition, and now more and more Sany equipment has participated in the construction of major projects in Jiangxi. It is believed that in the future, Sany's red arm will continue to be erected in major projects in Jiangxi Province. ”

It is understood that the upper level of the Longxing Bridge of Longxing Bridge in Nanchang, Jiangxi Province is an urban expressway with a design speed of 80 kilometers per hour, and the lower level is a double-track railway plus a two-way 4-lane urban trunk road.

Liu Jun, director of the North Second Ring Project Office of Nanchang Construction Investment Group, said: "As far as we know, this structure is also a relatively advanced structure in China. It not only saves the river crossing, but also saves the cost of project construction, and can also play a good economic advantage. Longxing Bridge is of great significance to improving the construction of Nanchang high-speed rail hub and building a comprehensive transportation hub with important national influence.