A giant dragon emerges from the Western Regions, and green electricity flows into Bayu. At present, one of the major projects of the national "14th Five-Year Plan," hailed as the world's longest power transmission project—the Hami-to-Chongqing ±800 kV ultra-high-voltage direct current transmission project (the "Xinjiang Power to Chongqing" project)—has entered an intensive construction phase. This "power dragon" stretching over 2,000 kilometers across five provinces, regions, and municipalities is poised to spring forth in the hands of Chinese builders, crossing mountains and ridges to deliver green energy to the mountain city of Sichuan and Chongqing. Deep in the Qinling Mountains, at one link of the project, SANY Intelligent Manufacturing has the honor of fighting side by side with the piling team of Qingyang Jinhongyi Construction Co., Ltd., participating in the construction of this major energy project.
Overcoming Difficulties: A Sharp Tool for Piling
Hard mountain roads, steep valley slopes, days of continuous rain... Pile foundation construction in the lofty mountains is a formidable challenge for both the construction team and the equipment. During the months of construction since last November, the Qingyang Jinhongyi pile foundation team has weathered many twists and turns: first, restricted by mountain road terrain, with construction access roads exceeding a 30-degree slope, truck cranes and drilling rigs of SR155 and above could not enter; later, some pile holes encountered moderately weathered limestone, greatly increasing construction difficulty; and after the arrival of spring, frequent rain in the Qinling Mountains made the tight schedule even worse, "adding frost to snow." In this arduous "schedule defense battle," the SR135 rotary drilling rig, specially developed by SANY for power tower piles, became the team's efficiency marvel for breaking through the progress bottleneck.
"The various advantages of the SANY SR135 rotary drilling rig have very effectively solved the various difficulties encountered during construction," said Cao Jianpeng, general manager of the company, lavish in his praise of SANY's piling equipment. "Our company is mainly responsible for power tower pile foundation projects. This SANY machine has a short and agile body; it not only has strong climbing ability but can also carry the drill pipe when relocating, without the need for auxiliary lifting by a crane, saving us a great deal of schedule time and cost. Its drilling performance is also quite formidable, capable of large-diameter pile construction, helping us crack the hard nut of the moderately weathered rock layer!"
With its agile and efficient travel capability and solid, reliable piling performance, the SANY SR135 rotary drilling rig has become the equipment guarantee for the Jinhongyi team to "battle the mountains and protect the schedule." Especially as the project recently entered the sprint phase of construction, the two sides have fought side by side on the front lines in the mountains and fields, pooling their strength to jointly safeguard the schedule.
Fighting Side by Side, Jointly Safeguarding the Schedule
As spring arrived, the project also entered the final 20% sprint phase. However, frequent rainfall in the mountainous area not only affected construction time but also made the already unpromising road conditions even worse, "adding frost to snow." Facing various difficulties, the Jinhongyi team, through meticulous overall planning and tacit cooperation from top to bottom, and with the assistance of the SANY SR135 rotary drilling rig, seized construction windows amid the dense rain and ensured the project progressed on schedule. Both the team's performance and the equipment's performance won unanimous praise from the project client!
"Our cooperation with SANY has lasted five or six years. The efficient advancement of this project would not have been possible without SANY's full support. SANY equipment has few failures and fast drilling speed; not only we but also the client highly recognize SANY equipment, and after-sales service support is also in place, relieving us of worries," General Manager Cao stated frankly. In this mountain pile foundation project, in addition to strong equipment support, the regular inspections by SANY's service engineer team also provided an important guarantee for rushing the schedule and accelerating progress.
Conclusion
It is understood that the power tower pile foundation project in the section under the Jinhongyi team's responsibility has been 80% completed and is expected to be finished in early April, bringing the day of "the green power dragon soaring" one step closer. In the future, SANY Intelligent Manufacturing will join hands with more partners to tirelessly advance on the road of supporting China's green development, contributing SANY's strength to the motherland's new energy cause!
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