Recently

the Pingcen Expressway opening ceremony and the

Tengxian Transportation Power Science Popularization Education Base unveiling ceremony

were successfully held in Tengxian, Guangxi

↑Click to watch the video↑

Invested and constructed by CCCC Second Highway Engineering Co., Ltd., CCCC First Highway Consultants Co., Ltd., and China Highway Engineering Consulting Group

Pingcen Expressway, in whose design CCCC Highway Consultants Co., Ltd. participated

is located within Tengxian and Cenxi City, Wuzhou City, Guangxi

The project has a total length of 75 kilometers

The Pingcen Expressway runs through densely distributed hills

and crosses the Xunjiang River and its tributaries multiple times

The construction difficulty is comparable to "embroidering among mountains and rivers"

CCCC builders overcame the challenges

and successively tackled three "hard bones"

the Tengzhou Xunjiang Bridge,

the Beiliu River Grand Bridge, and the Dayanling Tunnel

achieving multiple technological breakthroughs

The Tengzhou Xunjiang Bridge

is 1,604 meters long with a tower height of 238 meters

and is the world's first

single-tower spatial cable cable-stayed-suspension cooperative system bridge

The project team innovatively developed

a high-efficiency spinning and traction system for spatial cables

and catwalk adaptive technology

and explored the application of intelligent cable-stayed and suspension cable technology

achieving high-precision, high-efficiency, and intelligent construction of the bridge

The Beiliu River Grand Bridge innovatively adopted

a Bailey truss structure cable crane

through an integrated tie-and-hang arrangement

optimizing and adjusting the spatial structure of the main tower truss

which not only reduced the steel consumption by 480 tons

but also controlled the hoisting precision of the 105.8-meter-high main tower

within 5 millimeters

The self-developed intelligent transport trolley

enabled two-way transport of super-large, super-long, and super-heavy components

within the narrow and long spaces of low hills and丘陵

filling a gap in the industry

The intelligent management and control center of the Dayanling Tunnel

has been transformed into a smart tunnel capable of "self-management"

The QR code traceabilitysystemon the secondary lining trolley

gives every cubic meter of concrete an "ID card"

enabling visual management and control of the entire construction process

The Xunjiang River is home to

the national second-class protected fish "hemibagrus guttatus"

The Xunjiang Bridge is 6 kilometers from the downstream

secondary drinking water source protection zone of the county seat

During the route selection and construction process, the project

through measures such as replacing roads with bridges, setting retaining walls,

and reducing land use

cleverly avoided ecologically sensitive areas and core water source areas

During the construction of the main tower of the Xunjiang Bridge

the project team adopted

an overall sealing of steel casings and riverbedconsolidationscheme

to minimize disturbance to the river water

using a mud-sand separator to separate the slurry

and through professional slurry transport vessels

transferring the separated slurry to designated locations

for proper treatment

During the construction of the Pingcen Expressway

the project department established good enterprise-local relations

with local government departments and relevant units

and built Tengxian's first transportation power science popularization education base

In the first teaching activity

more than 40,000 students took the same "Transportation Power" ideological and political course

Since then, the project has continued to hold science popularization education activities

attracting a cumulative total of more than 100,000 primary and secondary school students at the time

CCCC thus launched

the activity of ten thousand engineers entering classrooms

to widely popularize scientific knowledge among young people

and promote the development of national science popularization

According to statistics, during the construction of the Pingcen Expressway

more than 8,000 person-times of local labor employment were provided

At the same time, it actively participated in public welfare activities such as donating funds for education, helping people in difficulty,

and improving rural infrastructure

donating a total of 40,000 yuan to the Tengxian Education Assistance Association