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CRHIC’s Shield Pipe-Jacking Machine Ushers in New Tunnel Construction Method

On March 22, Shield Pipe-Jacking Machine jointly manufactured by China Railway Engineering Equipment Group Co., Ltd. under CRHIC and Zhengzhou Municipal Engineering Corporation successfully drove through the 900m tunnel of high voltage transmission line relocation project in Longhu area, Zhengzhou, Henan Province. This is the first application of 'shield jacking construction method' in central China, marking a breakthrough in both new construction method and new field.This tunnel is an ultra-long distance power tunnel project rarely seen in Zhengzhou. In the face of many unfavorable construction conditions such as ultra-long haul, ultra-large pipe diameter, large buried depth and quicksand layer, traditional construction method cannot accommodate the construction requirements. To address the project challenges, China Railway Engineering Equipment Group Co., Ltd. together with Zhengzhou Municipal Engineering Corporation, proposed the idea of 'pipe jacking + shield ...

2022 - 03 - 26
Lvzhijiang Bridge of Yunnan Yuxi-Chuxiong Expressway Joined Together

At 11:00 a.m. on March 9, as the cable crane fixed the last piece of steel box girder on the sling accurately and stably, the Lvzhijiang Bridge of Yunnan Yuxi-Chuxiong Expressway constructed by China Railway Jiujiang Bridge Engineering Co., Ltd under CRHIC was connected.The Lvzhijiang Bridge is the first single-tower single-span steel box girder suspension bridge in the history of world highway construction. Its main span amounts to 780 meters and the tunnel anchor has the maximum inclination angle of 54 degrees.The main bridge has a total of 61 steel box girders weighing totally 11,200 tons, equivalent to the weight of the Eiffel Tower. The maximum lifting capacity of a single segment exceeds180 tons. It is an all-welded structure.

2022 - 03 - 10
World's Largest Span Double-Track Ballastless Track Bridge Successfully Erected

The First Steel Girder Segment of the World's Largest Span Double-Track Ballastless Track Bridge Successfully ErectedOn March 2, the first steel-concrete beam segment of Baihe Yujiang Bridge of Nanning-Yulin Railway in Guangxi, the world's largest span double-track ballastless track bridge constructed by China Railway Jiujiang Bridge Engineering Co., Ltd. affiliated to CRHIC was successfully erected on the P4 tower of Nanning.The Baihe Yujiang Bridge is a key control project of the Nanning-Yulin Railway. The main bridge is located near Baihe Town, Hengzhou City, Nanning, Guangxi. It is 612 meters long and spans the Yujiang River. According to the cable-stayed bridge scheme with steel-concrete composite beam, double-tower and double-cable plane, the middle span of the beam adopts steel-concrete composite beam, and the side span adopts concrete box girder. The main span measuring 330 meters. It is the double-track ballastless track bridge with the largest span in the world, provi...

2022 - 03 - 03
TBM Contributes to the Dianzhong Water Diversion Project

Snow-Covered Plateau Water Diverted to Benefit Millions of Population in the Middle of Yunnan Province-TBM Contributes to the Dianzhong Water Diversion ProjectTBM Yunling, the largest diameter TBM in use on international water diversion projects developed by China Railway Engineering Equipment Group Co., Ltd. under CRHIC, has successfully excavated 3,400m in the construction of the Dianzhong Water Diversion Project. The Dianzhong Water Diversion Project is the largest water diversion project and the largest investment of its kind under construction in China, the major water conservancy project valued highly by the country and Yunnan Provincial Party Committee and Provincial Government, and the super-large water diversion project to solve severe water shortage in the middle of Yunnan Province. Due to its complex geological conditions, high requirements for various water conservancy disciplines, comprehensive construction management and mechanized operation, heavy task of technologi...

2022 - 02 - 28
A Lunge at the Beginning-The First Quarter Is Off to a Good Start

The First 60m Steel Box Girder Segment in the Shoal Area of Shenzhen-Zhongshan Bridge Successfully Delivered3 p.m. on February 13，The first 60m steel box girder segment in the shoal area of Shenzhen-Zhongshan Bridge Project constructed by China Railway Shanhaiguan Bridge Group Co., Ltd. slowly departed from Zhongshan base harbor basin for installation at the bridge site, marking the successful completion of another key node of Shenzhen-Zhongshan Bridge construction. The first segment of steel box girder weighs about 791.4 tons.Recently, the first-line operators at Zhengzhou Base of China Railway Engineering Equipment Group Co., Ltd. completed the assembly and disassembly of TBMs of CREC 1100, 1155, 1156, 1109 and 1006, and the pre-installation of electric control cabinets of No. 1034, No. 1110, No. 1114 and No. 1156.

2022 - 02 - 14

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