The largest diameter shield tunnel project of the Yellow River was launched in Jinan, with a two -way six -lane speed of 60 kilometers per hour

Reporter Yu Bosheng

"The shield tunnel of the largest diameter of the Yellow River will be built under this beach area." Crossing Hebei, the transportation first, on July 5th, the Huanggang Road Tunnel project of the Yellow River in Jinan was launched. Tianqiao District. The overall length of the tunnel is about 5.8 kilometers, two -way six lanes, and the design speed is 60 kilometers per hour.

Single hole dual layer layout

Six -car lane speed 60 kilometers per hour

On the morning of the same day, on the north bank of the Yellow River, the Huanggang Road Tunnel project on the Jinan Huang River was launched on the scene. The engineering instruments on both sides were neatly arranged. The engineers were standing on the venue to wait for the instructions to issue the instructions. Looking towards the Shenshachi, the embankment on the north bank of the Yellow River extends along the river. In the future, this Yellow River Beach will have a "long dragon at the bottom of the river", which will become another symbol of Jinan North.

According to reports, the Huanggang Road Tunnel Project on Huanghe, Jinan starts from Lanxiang Middle Road in the south, crosses the Jiguang Expressway, the Yellow River, and Shenshachi to the north, and is grounded in Longhu Wetland Park to set up a toll square and connect with the Jianguo 309. The total length of the project is about 5.8 kilometers, of which the tunnel section is about 4.8 kilometers long and the shield section length is 3.3 kilometers.

Why is the north crossing tunnel landing here? The reporter retracted the map and found that the south of Huanggang Road took the Qiqi Road, and went south to the south of Wei 12 Road, Sunshine New Road, and Langmao Mountain Road to the South and the South Expressway. There are many residential areas along the way, and the daily traffic is busy. After connecting with Lan Xiang from Huanggang Road to the north, the tunnel connected to the National Highway 309 Interchange. Through the reconstructed National Highway 309, Qilu Huanghe Bridge, Huanghe Huanggang Road Tunnel, Yellow River Jixuan Road Tunnel, Jinan Huanghe Bridge Reunion Line achieved rapid China Unicom. Support Jinan North Cross. At present, the National Highway 309 Interchange Interchange will be completed and open to traffic.

The reporter found that on the horizontal section of the tunnel, the Huanggang Road Tunnel of Jinan Huanghe was different from the Yellow River Jixu Road Tunnel that was opened to traffic. The Huanggang Road Tunnel of the Huanghe River uses a single hole and double -layer layout. Through a shield tunnel, the vehicle traffic problem in two directions is solved. The design speed is 60 kilometers per hour, the two -way 6 -lane lane is arranged, and the upper -level traffic southward traffic, and the north -north direction of the lower layer. According to reports, compared to the conventional dual -hole tunnel plan, this design is more conservative. The outer diameter of the shield tunnel is 16.8 meters, which is the largest diameter shield tunnel that is worn by the Yellow River.

Improvement of net empty standards

In the future, there are 26 yellow bridge tunnels

Huanghe Huanggang Road Tunnel is positioned as a special passage of Xiaocke, and takes into account the demand for fire rescue and public transportation. The plan innovatively increases the standard of 3.5 meters to 4.2 meters, which can meet the normal traffic of all unmodlicted vehicles in the specifications, and can also meet the requirements of fire protection, management and rescue.

"During the construction process, the tunnel needs to cross the sandwater sinking pool of the Laoshan Reservoir. The shield construction is planned to use environmentally friendly pulp. At the same time, the radiation range of the slurry fluid is reviewed according to the infiltration of the soil layer to ensure that the slurry is not stringed into the sand pond when the shield is crossed to achieve the realization of the sand pond to achieve the realization The harmless crossing of the first -level water source protection area. "The relevant person in charge of the launch site said that the project research and development of ultra -width combination beams, intelligent unmanned unmanned top push technology, and high fatigue performance stags system Factory manufacturing and assembly construction to achieve breakthroughs in new technologies and new processes.

"On the basis of 15 channels, Jinan planned 11 channels, including the new Yellow River Bridge, the Daxi Rings Bridge of the West Ring Road, and the Huanggang Road Tunnel of the West, West Ring Road, and the Huanggang Road Tunnel to form 26 passenger layouts of the Yellow River channel." Jinan Urban and Rural Transportation Bureau Yang Feng, a member of the party group and the director of the Municipal Transportation Development Center, told reporters that the number of yellow passages in Jinan will double. The average spacing of the yellow channel in the main urban area is shortened to only about 3 kilometers, ranking first in all cities along the Yellow River.

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