Shanghai longyao road cross - river tunnel construction through the entire line

The new longyao road cross-river tunnel starts from the intersection of longyao road and longwu road in the west and ends at changqing road, chengshan road, with a total length of about 3,251 meters. The construction of the section was completed on April 5, 2010, providing an effective guarantee for the transportation of the expo.

The new longyao road cross-river tunnel starts from the intersection of longyao road and longwu road in the west and ends at changqing road, chengshan road, with a total length of about 3,251 meters. The construction of the section was completed on April 5, 2010, providing an effective guarantee for the transportation of the expo.

Longyao road cross the river tunnel (jiyang road - changqing section) project is divided into the north and south two lines. The total length is about 860m, and the tunnel is tunneled by mud-water balance shield machine with a diameter of 11.58m. The tunnel shield of the southern line will be advanced and ended on July 29, 2019. The tunnel shield on the northern line was completed on January 6, 2020.

What technological innovation measures have been adopted in the project

It is the first time to apply the technology of full drying treatment of mud and water shield

In the construction of the tunnel across the river, the belt filter equipment was introduced for the first time to achieve "zero discharge" of mud and reduce environmental pollution, providing a new solution for similar projects. This system is the first to be used in large diameter mud-water balanced shield in Shanghai.

The movable construction shed is applied in deep foundation pit engineering for the first time

Longyao road cross - river tunnel construction through the entire line

In order to better promote green construction, the project specially developed a fully closed mobile prefabricated construction shed. The equipment adopts trolley driven sliding system, which can move flexibly according to needs, and is equipped with sound-proof cotton and automatic spray device, which can effectively reduce the influence of construction dust and noise on surrounding residents and create good conditions for construction.