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我国自主研制国内最大直径硬岩掘进机下线 将用于亚洲第一长铁路山岭隧道
2017-08-07 23:03:21 中国经济网
TBM刀盘开挖直径达到9.03米,设备在满足快速破岩的同时,还在强化辅助工法方面进行了诸多创新,具备“诸般武艺于一身”,如增设了大尺度扩挖设计、钢筋排支护系统、前区即时喷混机械手系统、全周嵌藏式超前探测和超前注浆系统、在线实时超前地质预报系统、通风制冷系统等,以应对围岩变形、断层破碎带和岩爆、突水突泥、高地热等掘进中可能会遇到的风险。
据中铁隧道局集团相关负责人介绍,滇西南地区地质构造运动活跃、地质条件复杂,尤其是高黎贡山,普通钻爆法难以施工,西南地区采用世界最先进的大直径敞开式隧道硬岩掘进机进行施工作业尚属首次,这是一个全新的挑战。
此次“彩云号”硬岩掘进机的成功下线,也标志着中铁电建高端装备制造项目在昆明落地的进一步巩固,真正实现了“昆明盾构昆明造”。
【链接】世界第七长大隧道、亚洲最长的铁路山岭隧道
大理至瑞丽铁路(简称“大瑞铁路”)是我国《中长期铁路网规划》中完善路网布局、国家实施西部大开发战略和加快“八出省、五出境”铁路的重要举措,对德宏、云南乃至周边国家实现跨境合作、互通互联和加快边疆民族地区跨越发展具有十分重大的意义。
大瑞铁路位于云南省西部,全长约330公里,是国家“一带一路”战略规划中泛亚铁路(西线)中缅国际铁路通道的重要组成部分。其中重点控制性工程——高黎贡山隧道全长34.538公里,是目前世界第七长大隧道,(瑞士新圣哥达隧道长57.6 公里、奥意布雷纳隧道长55.6 公里、日本青函海峡隧道长53.85公里、法意里昂-都灵间隧道长52.11公里、英法英吉利海峡隧道长49.50公里、瑞士勒奇山隧道长34.6公里),系亚洲最长的铁路山岭隧道。
高黎贡山隧道位于怒江车站和龙陵车站之间。隧道进口位于怒江大峡谷西岸的悬崖峭壁上,紧临抗日战争著名纪念地惠通桥,隧道出口从1100余米深的地下穿过松山抗战遗址和龙陵县城后,进入德宏州芒市,预计总投资36亿。
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