RecentlySouth and North Banks of Hannan Yangtze River Bridge ProjectThe machine roared、A busy partySeveral large-tonnage rotary drilling rigs of XCMGWork together to promote the construction of pile foundation

Hannan Yangtze River Bridge is located in the southwest of Wuhan.，It is an important part of Wuhan Metropolitan Circle Ring Expressway.。The main span of the bridge is 1600mSingle-span suspension bridge，Use design speed 120km/hTwo-way eight-lane expressway standard，Deck width 41.5m，The total length of the bridge is 2846m。

The foundation of the main tower adopts 72 pieces of diameter 2..5mBored pile

Maximum pile length 101m

The pier is located near the main channel of the Yangtze River.

The borehole needs to pass through a permeable sand layer with a thickness of more than 40 meters.

The geological conditions are complex，High pore-forming quality risk

 

XugongXR550D、XR580HDAnd many other XCMG large-tonnage rotary drilling rigs rely onExquisite technology and excellent performance，Successfully overcome the complex formation、Multiple problems such as urgent construction period，The average hole-forming period is 68 hours.，Speeding up the Construction of Bridge Pile Foundation in an All-round Way。

Medium and large tonnage rotary drilling rig of XCMGStrong rock penetration capability、And that construction efficiency is high、The transition is flexible and convenient，Mainly applicable to housing construction、Bridge、Municipal construction and other medium and large pile foundation projects。

Multi-gear mode of power head，Fast drilling in soil layer construction、Throw the soil quickly；

Hard rock construction，The torque is large、High pressure ，High efficiency；High torque engine，Powerful、And that output efficiency is high、Low fuel consumption、Low noise；

Single-row rope main winch structures，The service life of the steel wire rope is improved by more than 2 times。

It is reported that，After the completion of the project, Xianning will be strengthened、Ezhou、Huanggang、Exchanges between Xiaogan and Wuhan，To improve the backbone road network structure of the Yangtze River Economic Zone，Build a regional comprehensive three-dimensional transportation system，It is of great significance to promote the integration process of Wuhan metropolitan area.。XCMG will“Efficient、Safe、Reliable”The product of，“It is more comprehensive、Better value for money”Construction solutions for，Continuously create value for customers，To make contributions to the construction of major national livelihood projects！