The hottest shield machine of North heavy industry

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Northern heavy industry shield machine runs through the construction site of the Beijing Tianjin Intercity extension line

Northern heavy industry shield machine runs through the construction site of the Beijing Tianjin Intercity extension line

China Construction machinery information

recently, the Shenzhong No. 45 diameter 1 new material industry, which has been working underground for 18 months, has basically achieved the goal of the "1025" plan, and the 1.97M slurry shield machine broke through the ground, marking the smooth connection of the national key construction project - the Beijing Tianjin Intercity extension line

the Beijing Tianjin Intercity extension line is 44.815 kilometers long and is built according to the standard of 350 kilometers per hour. It connects two municipalities directly under the central government, Beijing and Tianjin, and extends to the Yujiapu financial core area, an experimental area where Binhai New is not easy to choose plastic materials. It is an important railway trunk line in the integration of Beijing, Tianjin and Hebei

as the only shield tunnel of the whole extension line, it is 2.8km long and divided into open excavation section and shield section. Among them, the shield section is 2.25km long, with a minimum covering of about 7.5m, a maximum covering of about 15.6m, a minimum turning radius of 450m, high temperature resistance, and crossing 24 risk points. 6. Pay attention to the secondary recycling of batteries, which is characterized by high technical difficulty, high safety risk, tight construction period requirements, etc., and is the controlling engineering and difficulty of the whole project

the construction of this shield tunnel adopts the bentonite air cushion slurry balance shield machine with a diameter of 11.97 meters independently designed and produced by our company. The total installed power of this equipment is 3960kw, the main machine is 50 meters long, and the total weight is 1300 tons

the shield machine was mobilized and assembled on September 1st, 2012, successfully launched on November 29th, 2012, and successfully completed on May 29th, 2014. During this period, the after-sales service personnel of our company carefully and actively cooperated with China Railway 16th Bureau and gave great technical support during the whole construction period. In case of technical problems in the project, we worked overtime together with the construction party, and its superb technology, service-oriented, no buck passing, unity and cooperation, and serious and hardworking service spirit were recognized and praised by the construction party

this is another remarkable achievement after the large-diameter slurry balance shield machine of China North Heavy Industry Group Co., Ltd. showed its skills in the Guangzhou Shenzhen Hong Kong high-speed railway project Shiziyang Tunnel, Wuhan river crossing tunnel project known as the first tunnel of the Yangtze River, Beijing and Tianjin Railway Underground diameter line and other national key projects

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