China's largest diameter SPB TBM for South Korean project rolls off production line in Zhengzhou

China's largest diameter SPB TBM for South Korean project rolls off production line in Zhengzhou

中国自研出口韩国最大直径泥水平衡盾构机在郑州下线

The "CREC 1448" SPB TBM, developed by China Railway Engineering Equipment Group Co., Ltd. (hereinafter referred to as CREG), passed the acceptance inspection by the Korean contractor and was rolled off the production line in Zhengzhou, according to CREG on December 10. This machine, the largest diameter SPB TBM independently developed and exported by China to South Korea, will be used to construct the first section of the Gangneung–Pyeongtaek Railway project.

12月10日，记者从中铁工程装备集团有限公司（以下简称“中铁装备”）获悉，由中铁装备研制的“中铁1448号”泥水平衡盾构机顺利通过韩国承包商的验收并下线，将用于韩国江陵—猪津铁路1标段项目的建设，这也是中国自主研发并出口至韩国的最大直径泥水平衡盾构机。

The first section of the Gangneung–Pyeongtaek Railway project is located in the original Gangdo area of Gangneung City, South Korea, bordered by the Sea of Japan to the west and the East Sea to the east. The entire route traverses coastal lowlands and the Taebaek Mountains. This section includes a tunnel that is 2,869 meters long, with a design gradient of 0.17% over a continuous uphill stretch, and a minimum turning radius of 900 meters. The project will pass through various complex geological layers, including gneiss, weathered soil, weathered rock, and soft rock, with the rock strength reaching 150 MPa. Both the design and construction face significant technical challenges.

江陵—猪津铁路1标段项目位于韩国江陵市原江道区域，西临日本海，东接东海，全线穿越沿海低地与太白山脉。该标段的隧道总长2869米，设计坡度为0.17%，并且持续上坡，最小转弯半径达到900米。项目需要穿越片麻岩、风化土、风化岩、软岩等多种复杂地质层，岩石的最高强度甚至可达150兆帕，设计与施工面临着巨大的技术挑战。

In response to the project's unique geological conditions, CREC meticulously designed and developed the "CREC 1448" SPB TBM. This machine features a cutting diameter of 8.98 meters, a body length of approximately 76 meters, and a total weight of about 1,250 tons. It adopts a modular design for efficient assembly and commissioning. Equipped with a new slurry balance system, it can tackle the complex geological environment, where soft and hard strata alternate, ensuring stable and efficient tunneling. Additionally, the shield machine is equipped with an advanced intelligent control system that enables automated operation and precise control, significantly improving both construction efficiency and safety.

针对该项目的特殊地质条件，中铁装备精心设计并打造了“中铁1448号”泥水平衡盾构机。这台盾构机开挖直径达到8.98米，机身长约76米，总重量约1250吨，采用了模块化设计，便于高效组装与调试。配备全新的泥水平衡系统，能够应对软硬交替的复杂地质环境，确保掘进过程的稳定性与高效性。同时，盾构机搭载了先进的智能控制系统，能够实现自动化操作和精准控制，大幅提升了施工效率与安全性。

The Gangneung–Pyeongtaek Railway project is a key part of the East Coast Northern Line in South Korea, connecting the cities of Gangneung and Pyeongtaek. The entire project spans 110.6 kilometers and is divided into nine sections for phased construction. Notably, the "CREC 1448" SPB TBM will be deployed in the first section, which is the first to commence construction and features the most complex construction conditions. It is important to note that due to the aging of the original infrastructure, the East Coast Northern Line has been out of service since 1976. The successful rollout of the "CREC 1448" marks the imminent revival of this significant railway after more than 50 years of dormancy. Upon completion, the railway will become a new economic engine for the East Coast of South Korea, greatly stimulating regional economic growth and advancing the modernization of the transportation network.

江陵—猪津铁路项目是连接江陵与猪津两大城市的韩国东海沿岸北部线铁路的重要组成部分，全长110.6公里，项目分为9个标段分阶段建设。其中，“中铁1448号”将投入到最先动工且施工条件最为复杂的第一标段。值得注意的是，由于线路老化，东海沿岸北部线铁路自1976年起便已停运，而“中铁1448号”的顺利下线，象征着这一重要铁路经过50多年的沉寂后即将重启。项目完工后，这条铁路将成为韩国东海岸地区新的经济动力源，极大地激活区域经济发展，推动交通网络的现代化升级。（杨佳欣/图文 编译 张军平 赵汉青/审校）