Recently，WithXugong“The Han River”Pipe jacking machineSlowly pass through the receiving shaft door，Successful acceptance of pipe jacking in the river-crossing section of Danjiangkou Urban Water Supply Capacity Improvement Project，MarkedThe first long-distance pipe-jacking water supply tunnel crossing the Hanjiang River in ChinaOfficially connected。

The stratum of the construction section of the project is complex and changeable.，NeedBroken full-face rock layer，Passing through multiple strata such as strong and moderately weathered rock；Cross the river for a long distanceThe construction is difficult.，Groundwater is abundant，It is not allowed to open the warehouse for inspection and tool change。

The project is located in the urban area of Danjiangkou City, Hubei Province.，It is to meet the long-term planning population water demand of Danjiangkou City.，Improve the lives of residents、Livelihood project of production water quality。The construction of the project involves both sides of Danjiangkou City.，From the second water plant，Finally, the first water plant，The new pipeline is about 10 kilometers long.。Among，Cross the river sectionThe total length of the pipe-jacking water supply tunnel is about 718m，Outer diameter of tunnel 2.4m，It is the most difficult section in the whole construction process.。

XugongXDN2000-RPipe jacking machine is usedComposite rock cutter head，EquippedHigh torque reduction gearbox，Facing the weathered rock、Hard rock and other geology，XugongXDN2000-RAcross the whole section of the lithosphere，The maximum saturated uniaxial compressive strength of rock is about70MPa，Daily footage up to 25m，The final time is 3 months.，Get out of the hole smoothly。

In addition，XCMG technicians are stationed at the site，Fully assist the project department to overcome the difficult problems such as underwater receiving of pipe jacking in high water pressure stratum，Ensure the smooth progress of the project，From construction efficiency、Quality of serviceHanded in a satisfactory answer to the construction side.。

XugongXDN2000-RStrive to be a pioneer in this project，Efficient and precise jacking is quite recognized by the construction side.。

The customer appreciated：“Complete construction process of XCMG、The allocation of equipment and personnel is worth learning and recording.，Made by XCMG is great.！”

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