01
The longest in the world、The largest scale

Recently，Drilling of the first pile of the second undersea tunnel in Jiaozhou Bay, Qingdao，It marks a new chapter in the project construction.。The second undersea tunnel of Jiaozhou Bay is located between the Jiaozhou Bay Tunnel and the Jiaozhouwan Bridge.，It is the largest submarine road tunnel in the world at present.。

The second submarine tunnel of Jiaozhou Bay is the second all-weather cross-sea passage between the West Coast New Area and the main urban area of Qingdao.，To ease the traffic pressure between the new district and the main urban area of Qingdao.，It is of great significance to promote the economic and social development of the northern part of the new area and the westward extension area.。

  

02
Challenge the world's problems

Main crossing of the second undersea tunnel in Jiaozhou BayCangkou fault zone。Cangkou fault is a regional fault with large scale.，It controls the eastern boundary of the Jiaolai Basin on land.，The sea area controls the interface between magmatic rocks and sedimentary rocks.。The tunnel passes through a large-scale fault in the sea area.It is a worldwide problem，The construction process will face sudden water gushing.、Risk of collapse，It is difficult to construct.、Features of high risk。The road surface at the deepest point of the line is 112m from the sea level，The construction section is mainly in the slightly weathered rock area.，High hardness、Construction is difficult。

  

03
Key output connecting the preceding and the following

Loader of Weichai Lovol Construction Machinery、Excavators also serve as“A mainstay”Participated in the construction of the tunnel.。“The construction period is tight，We also want to open to traffic as soon as possible to provide convenience for citizens.，The rock under the sea is very hard.，Every day is a race against time.。”

  

  

Master Chen said，Of all the equipment in the tunnel,Weichai Lovol's side dump loader plays the most stable role.，“Key output connecting the preceding and the following”，Lots of rock fragments every day.，Have to rely on Lovol's loader to transport them out.，Efficiency and reliability are important。

The second undersea tunnel of Jiaozhou Bay is expected to open by the end of 2027.，After opening to traffic, it will ease the traffic pressure between the new district and the main urban area of Qingdao.，It is of great significance to promote the economic and social development of the northern part of the new area and the westward extension area.。

  

In recent years, with the country“Double Carbon”Implementation of objectives，Green and low-carbon development has become the only way.，Weichai Lovol Construction Machinery Co., Ltd.，Lead the fourth national team，Continuously provide customers with real efficiency、Low-carbon and reliable all-round construction products，It has become a popular product in the field of national infrastructure.，For“Carbon neutral、The carbon reaches the peak”While making more contributions to the strategy，Building a Beautiful China Together！