Recently, the earth pressure balance TBM 'CREC 1079' developed by China Railway Engineering Equipment Group Co., Ltd. (CREG) under CRHIC and applied to the Sylvan Drainage Tunnel Project in Diyarbakir, central Turkey, and the single shield TBM 'CREC 1141' applied to the cable tunnel project in Yongin Semiconductor Industrial Park in South Korea rolled off production line.The Sylvan Drainage Tunnel has a length of 13.23km, maximum burial depth of 400m, and excessively high gas concentration. Also the survey reveals a fault on the way of excavation, leading to collapse risk and h...
发布时间:
2022
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11
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08
浏览次数：1
The first round segment assembly of the main channel bridge of Changtai Yangtze River Bridge passes acceptanceRecently, the first round segment assembly of main structure steel truss girder and steel tower manufacturing project Lot CT-A6 of Changtai Yangtze River Bridge (river-crossing section) undertaken by China Railway Shanhaiguan Bridge Group Co., Ltd. affiliated to CRHIC successfully passed acceptance. Changtai Yangtze River Bridge consists of main channel bridge, main channel bridge steel tower, Lu’anzhou non-navigable span bridge, Lu’anzhou channel bridge, Tianxingzhou channel bridge, a...
发布时间:
2022
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11
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04
浏览次数：1
On October 26, the unveiling ceremony of CREC-Guineng Intelligent Mine Research Institute & the off-line ceremony of hard rock TBM CREC 1200 was held in Liupanshui High-tech Industrial Development Zone, Guizhou Province. CREC 1200 ('Liangdu') will be used in the construction of auxiliary adit and haulage gateway in bed plate tunnel of Juxin Coal Mine in Guizhou Province, becoming a new useful tool in coal mine tunnel construction.Given the engineering difficulties in the southwest gas control roadway such as short tunneling distance, frequent redeployment, fast and complex geologic...
发布时间:
2022
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10
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28
浏览次数：3
Recently, the 'Development and Application of Gantry Welding Robot' project undertaken by CRHIC's Intelligent Engineering Research Institute passed acceptance and was put into use.The gantry type intelligent steel bridge diaphragm welding robot independently developed by CRHIC has improved the programming efficiency and flexibility level of welding robot in the welding of steel bridge diaphragm units, greatly reducing the preparation time before welding; it enables overall scanning and positioning for the structural parts of the large size steel bridge to be welded, which enhances ...
发布时间:
2022
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10
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14
浏览次数：1
On September 20, the earth pressure balance shield machine 'Shancheng Zhengxian' (CREC 1221) developed by China Railway Engineering Equipment Group Co., Ltd. under CRHIC rolled off production line in Deyang Base.With excavation diameter of 8.83 meters, total length about 106 meters and weight being 1,100 tons, the machine will be used in the Chongqing Metro Line 27 Lot 10 project constructed by China Construction Third Engineering Bureau Group. The R&D team has adopted targeted design to solve the difficulties in large cross-section and long distance tunneling, segment floating and...
发布时间:
2022
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09
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20
浏览次数：1