World's longest expressway tunnel opens to traffic in Xinjiang

China Daily Online：An aerial drone photo taken on Dec 20, 2025 shows a view of Urumqi-Yuli Expressway in Northwest China's Xinjiang Uygur autonomous region.

2026-01-12

Congratulations to the "Zhenxing" tunnel boring machine on the successful completion of its cutter inspection!

The "Zhenxing" tunnel boring machine used for the right line of the Yanlu Passage over-river project is a 15-meter-class, ultra-large-diameter slurry shield designed and manufactured by CCCC Tianhe specifically for Nanjing's cross-river tunnel. The tunnel’s shield-driven section spans a total length of 2,975 meters. This project features significant characteristics such as a large cross-section, high water pressure, extended distances, and exceptionally abrasive ground conditions. Moreover, most of the construction lies beneath the riverbed, with the hardest rock layers in the hard-rock sections exceeding 70 MPa in strength. The diverse and complex geological conditions place extremely stringent demands on the cutting tools used during excavation.

2020-07-03

The 6th Session, 2nd Meeting of the Board of Directors of the International Association for Large-Diameter Engineering Wells (Piles) was held solemnly.

Abstract: Mr. Chao Huanqing, Vice Chairman and Chairman of Luoyang Jiujiu Technology Co., Ltd., provided several explanations regarding the amendments to the Articles of Association. Based on the feedback received on the amendments to the Articles of Association, the Supervisory Board was elected. Newly appointed Chairman of the Supervisory Board, Mr. Yang Jingrui, delivered a statement outlining the duties, tasks, and scope of authority of the Supervisory Board.

2018-11-24

The 2018 Membership Conference of the Shield Tunnel Remanufacturing Innovation Strategic Alliance was held in Guangzhou.

On November 16, the "2018 Membership Conference of the Shield Tunneling Remanufacturing Innovation Strategic Alliance" was grandly held in Guangzhou.

2018-11-23

Luoyang Jiujiu Technology Co., Ltd. 20th Anniversary Celebration & Yuntai Mountain Resort Retreat

In August 2016, to celebrate the company’s 20th anniversary, a Yuntai Mountain resort getaway was held under the theme "Moving Forward Together, Creating Brilliant Futures." Yuntai Mountain, historically known as "Fufu Mountain," earned its second name due to its towering peaks and the perpetual clouds and mist that shroud the mountain throughout the year. The terrain is rugged and steep, with pristine forests blanketing the entire area. Towering over the landscape are deep, serene valleys dotted with crystal-clear streams and tranquil pools, complemented by countless breathtaking waterfalls and cascading springs. The scenery is nothing short of picturesque, featuring uniquely shaped rock formations that seem straight out of a dream.

2016-11-21

China Railway Equipment once again stuns the world.

On December 25, the world's largest rectangular pipe jacking machine with a large cross-section, "Kaotuo," independently developed and manufactured by China Railway Engineering Equipment Group Co., Ltd., rolled off the production line at Dalian Qianyi Manufacturing Base. Luoyang Jiujiu Technology Co., Ltd. also contributed to the project by participating in its technical research and development efforts.

2016-01-06

Qiongzhou Strait Cross-Sea Bridge

The "Qiongzhou Strait Cross-Sea Engineering Planning Study Report," jointly prepared by the Ministry of Transport, the Ministry of Railways, and the provinces of Guangdong and Hainan, has now been completed. The report identifies the construction of a combined road and rail bridge connecting Denglujiao in Xuwens County, Guangdong Province, to Daolunjiao in Chengmai County, Hainan Province, as the preferred solution for the Qiongzhou Strait cross-sea project. The bridge’s offshore section will span 26.3 kilometers—making it the second-longest bridge in the world, behind only the newly completed Hangzhou Bay Bridge.

2015-12-28

Luoyang Jiujiu Technology Co., Ltd. Successfully Held the 2015 Baoduzhai Red Tourism Event

In August 2015, our company organized a two-day trip to Luanchuan Baoduzhai, themed "Remembering the Martyrs and Revisiting Our Red History." Baoduzhai boasts rugged, undulating terrain that stretches endlessly, with its steep and perilous landscape. Back then, PLA soldiers bravely carried explosive packs and scaling ladders, defying enemy fire to liberate this ancient fortress—once home to generations of impoverished villagers trapped in dire suffering. At the site, employees paid tribute at the Heroes' Monument, watched a documentary chronicling the liberation of Baoduzhai, and witnessed firsthand the inspiring scenes of heroic martyrs fearlessly battling through relentless challenges to safeguard their homeland and protect their cherished community.

2015-09-17

Our company's ultra-large-diameter engineering drill bits have been perfectly applied in key national projects.

On June 3, 2015, the Z05 main tower pier of the main bridge over the Guyu Gate waterway for the Fuping Railway’s Pingtan Strait Dual-Use Bridge—a key national project—successfully completed the concrete pouring of a 4.5-meter-diameter bored pile. This pile currently represents one of the largest-diameter foundation piles in the history of bridge construction. The drilling bit used for this borehole was custom-designed and manufactured by Luoyang Jiujiu Technology Co., Ltd., featuring an innovative structural design and robust welding techniques, which provided a solid foundation and ensured high-quality results for the smooth completion of Bored Pile No. 4 at the Z05 pier of the Pingtan Strait Dual-Use Cross-Sea Bridge. Additionally, all eight 4.5-meter-diameter drill bits and 20 4.0-meter-diameter drill bits supplied by our company were seamlessly integrated with the corresponding drilling rigs for this critical project.

2015-06-11

Warmest congratulations on the successful completion of our company's shareholding reform!

Our company, through a resolution passed at the shareholders' meeting on March 10, 2015, officially changed its name from "Luoyang Jiujiu Technology Development Co., Ltd." to "Luoyang Jiujiu Technology Joint-Stock Co., Ltd." The subsequent business registration update was completed on March 31, 2015, marking the official transformation of our company type from a "Limited Liability Company" to a "Joint-Stock Company."

2015-04-06