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中西部铁路建设项目加快推进
2017-08-10 09:37:54 中国青年网
今年上半年,全国基础设施投资完成5.94万亿元,同比增长21.1%。其中,中西部地区基础设施投资合计增长22.9%,增速比全部基础设施投资高1.8个百分点。在西南地区,云南正加快推进“八出省五出境”铁路网建设,目前,全省在建铁路项目共12个,建设规模达2365公里。
在广大铁路施工现场,笔者看到中国铁建电气化局北方公司正在进行接触网及变配电所的紧张施工。项目部经理郭文宇介绍,广大铁路全线将要完成394个接触网锚段、500多公里承导线和255台各型设备等的安全优质投产。需要进行下部基础、承导线架设,再到设备安装调试等20道工序,如“绣花”般完成1000多种材料和不同设备的装配。
同时,在云南修筑又一条进藏铁路的重要组成部分——丽香铁路中铁建21局施工现场传来好消息,位于丽江拉市海景区的姆木隧道8月4日顺利贯通。中铁建21局丽香铁路项目部总工程师王建恒介绍,隧道全长只有172米,在最初设计时是按明洞施工,但考虑到拉市海景区环境保护和生态平衡的原因,改为暗洞施工,隧道埋深最浅的地方只有2米,这在全国的隧道施工中也是罕见的。正是因为浅埋、塌方等施工风险,平均每天仅能掘进1米,使隧道的施工周期长达5个多月。
今年上半年,中国与南亚东南亚国际铁路通道广通到大理铁路已完成投资12.95亿元,同比增长30.8%;大理到临沧铁路已完成投资14.1亿元,同比增长42.4%;玉溪到磨憨铁路完成投资23.49亿元,同比增长187.2%。(黄榆 钱克勤)
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