“The world's first diamond”XR1600E

The first record is released.

6.3mDiameter、106mPile depth、Into the rock 40m

Create a world record of pile foundation construction

How long a bridge has, how strong the piers must be to carry it.。

And XugongXR1600EThe rotary drilling rig participated in the construction of Xihoumen Highway and Railway Cross-sea Bridge with the largest span in the world.，Among them, the foundation of No.5 main tower pier adopts18 PCs 6.3mBored pileCarry out bearing。XR1600ERotary drilling rig needs to be used in strong wind、Riptide、Bare rock、In the complex marine environment of deep water, the foundation of this super cross-sea bridge is tamped.，FinishAt present, the largest diameter in China is 6.3mDrilling construction！

Rocks in the sea area where the construction site is located“Temper”It's hard！The strong sea breeze drives the surging sea surge day and night.，Washed away the loose rock formations on the sea floor。You can imagine the shape and structure of the seabed by looking at the huge rocks extending from the seabed.，The maximum hardness of the seabed rock is 100 MPa.，Depth into rock 40m。

XR1600EDrilled Rock

Drilling in such a place is tantamount to challenging nature.，Not to mention a diameter of 6..3mLarge diameter bored pile，This is the largest bored pile foundation in China at present.，The difficulty of construction and the content of construction technology have reached the same level.。It also meansXR1600EEvery inch of the downward drilling of the rotary drilling rig is unpredictable.、An unimaginably complicated situation。

Face the difficulties，The builders of the bridge have come up with many clever ideas.，Including the use of superior performance of Xugong.XR1600ECarry out construction work。

The equipment relies on dual power system.、Single-rope main winch with sup large lifting force、Multi-gear mode of power head、Drill pipe visualization and other intelligent technologies，Construction without fear of deep water and hard rock，Break through that conventional step reaming proces，Reduce the number of grading，Take the lead in adopting 2m、3m、4.5m、6.3mYesFour-stage reaming process，Smooth crossing of highly weathered granite，Weakly weathered broken granite、Cataclastic rock、Complex strata such as slightly weathered and broken rhyolite。

Final，XR1600ERotary drilling rig successfully breaks through industry 1.8mReaming cutting limit，Break 6.3mBorehole diameter、Into the rock 40m、Total depth 106mWorld Record of Pile Foundation Construction。