中国造硬岩隧道掘进机贯通东南亚第一长铁路隧道|精品国产乱码久久久久久浪潮
1. 精品国产乱码久久久久久浪潮 - chuyuav
中新网北京7月17日电 (记者 夏宾)中新网记者17日了解到,由中交天和自主研制用于马来西亚东海岸铁路项目(下称“马东铁项目”)建设的敞开式TBM(硬岩隧道掘进机)“云顶二号”近日顺利贯通东南亚第一长铁路隧道——云顶隧道。
云顶隧道是马东铁项目重点控制性工程之一,也是东南亚地质条件最复杂、施工难度最大的隧道工程之一。该隧道全长16.39公里,最大埋深750米,被《马来西亚纪录大全》认证为该国最长、最高覆盖层铁路隧道,也是东南亚第一长铁路隧道,刷新东南亚隧道建设史。
云顶隧道穿越蒂迪旺沙山脉,地质条件堪称“地狱级”,200兆帕超硬花岗岩,岩石石英含量高,尤其是片岩的石英含量占比超过70%,与日均1万立方米突泥涌水、强岩爆、断层破碎带等交织成世界性难题。
中交天和自主研制的“云顶双雄”——敞开式TBM“云顶一号”“云顶二号”为解决马东铁路项目建设重大难题提供了可靠智慧方案。两台TBM刀盘直径8.98米、总重2500吨、国产化率98%,集成了包括L1区锚、网、拱架、喷联合强支护,多类型超前地质探测等多项世界先进技术和70项首创技术。
此外,刀盘结构按照最恶劣受力条件下5倍的安全系数进行有限元校核,并优化刀盘表面,以满足长距离硬岩隧道连续掘进;配备超前地质探测系统,对刀盘前方100米地质进行有效探测,以便提前应对和快速通过不良地层。
云顶隧道贯通为马东铁项目全线通车奠定了坚实基础,对未来带动马来西亚东海岸经济快速发展、有效促进“陆桥”物流转型意义重大。(完)
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