Xihoumen dual-purpose highway and railway bridge. “The World’s Largest” XCMG XR1600E Rotary Drilling Rig, less than half a year in the field, the first to complete the main pier eight 6.3 meters large diameter drilling task.
The construction efficiency is far ahead!
On December 9th, good news came from the construction site of the Xihoumen dual-purpose highway and railway bridge. XCMG XR1600E rotary drilling rig was the first to complete the 6.3 meter ultra large diameter drilled pile for the main pier of the bridge, greatly ahead of the planned construction period.
The Xihoumen Public Railway Bridge is a control project of the Yongzhou Railway, with a total length of 3118 meters. The main span of the bridge is a 1488 meter cable-stayed suspension cooperative system bridge. It is currently the world’s largest dual-purpose bridge for both road and rail. Not only the construction risks caused by the complex marine environment, but also the technical challenges faced by engineering construction far exceed those of other bridge projects already built or under construction in China.
The main pier foundation of the bridge adopts a total of 18 6.3-meter ultra large diameter drilled piles. This is currently the largest diameter drilled pile foundation in China. Its pile depth is 106 meters, water depth is 66 meters, and it is 40 meters into the rock. Some pile foundations can reach a maximum depth of 116 meters. The XCMG XR1600E rotary drilling rig needs to pass through complex formations such as strongly weathered granite, weakly weathered fractured granite, fractured rock, and slightly weathered fractured rhyolite layer by layer, in order to compact the foundation of the bridge deep underwater.
Rock Drilled by XR1600E Rotary Drilling Rig
XCMG XR1600E rotary drilling rig completed one pile in an average of 10 days, almost fully on duty. And it completed the construction task of 8 piles in the project department with high quality. This is a challenge between the machine and nature, as well as a arena for equipment in the same industry. According to on-site construction data feedback, XCMG’s equipment efficiency is leading by nearly 15%. And also it is the first to complete some of the project’s allocation tasks.
Moreover, XCMG XR1600E rotary drilling rig is currently the world’s largest tonnage rotary drilling rig, with a maximum drilling diameter of 7.5 meters and a maximum drilling depth of 190 meters. And then the equipment is designed in a split type, with fast assembly, convenient transportation, and stable performance.
CCTV Focuses on the Construction of XR1600E Rotary Drilling Rig
The remarkable achievements of XCMG XR1600E rotary drilling rig marks a new level of global pile foundation construction equipment.
Provide technical support for more super projects to move from drawings to reality!