14米级超大直径盾构机湖南长沙下线|人妻和老师做爰

  10月24日,湖南长沙,一台开挖直径14米级、刀盘涂装“拓荒牛”图案的超大直径盾构机下线,将应用于新建深圳至深汕合作区铁路(以下简称“深汕高铁”)龙岗隧道工程。

  深汕高铁是粤港澳大湾区首条由单一城市全资建设、设计时速350公里、连接深圳核心区与深汕特别合作区的城际高速铁路。由中铁十四局承建的龙岗隧道中段是全线重难点项目,隧道全长10307米,单洞双线,设计时速350公里,采用盾构和矿山法施工。其中盾构段长3685米,最大埋深97米,岩层最大强度83兆帕。

  这台由中铁十四局和中国铁建重工集团针对施工难点量身定制的泥水平衡盾构机,具有完全自主知识产权,开挖直径14.31米,最大推力21300吨,总功率12000千瓦,整机长117米,总重量3600吨,总装达到世界一流水平。

  该盾构机下线后将立即拆解,通过海陆联运的方式运输到深圳施工现场,拆块分解的超大部件,通过640米长的园山斜井,运至组装洞室。该组装洞目前已建成就位,可满足490吨重刀盘整体吊装等超大结构件需求。(刘福昌 赵耀荣 制作 乐小敏 视频来源 中铁十四局)

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发布于:北京市