广湛高铁站前2标无砟道床施工完成|永久免费不卡在线观看黄网站
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中新网佛山7月7日电 (郭军 王锐 韦相宇)7月7日，在广湛高铁高中立交特大桥21号至23号墩施工现场，随着最后一块无砟轨道整体道床板浇筑完成，由广东铁投集团所属广湛铁路公司投资建设、中国铁路设计集团EPC总承包、中铁二十五局承建的广湛高铁站前2标项目无砟道床施工任务全部完成，为后续铺轨作业的开展奠定坚实基础。
广湛高铁全长401公里，是广东省自主投资建设线路最长、投资最大的铁路项目。其中，中铁二十五局承建的广湛高铁站前2标长10.38公里，包含佛山特大桥、高中立交特大桥2座桥梁及两段路基，其中无砟轨道双线全长8.2公里。
“在高铁建设中，无砟轨道施工是对几何尺寸偏差、精度控制要求最为苛刻的环节，其中轨道板尺寸误差需控制在2毫米以内。”中铁二十五局项目技术负责人郑伟介绍说。
为此，项目建设者运用轨排框架法施工，实现施工工序集成化、参数控制精准化、作业过程机械化，有效提升施工效率，并把施工精度控制在毫米级。
广湛高铁设计时速350公里，是国家“八纵八横”高速铁路网沿海铁路客运大通道的重要组成部分，是连接粤港澳大湾区和海南自贸港、北部湾城市群的高速铁路。项目建成通车后，将大幅缩短粤西地区与粤港澳大湾区的时空距离，广州中心城区至湛江中心城区可实现90分钟互达，极大改善粤西地区群众出行条件，助推粤西沿海地区阳江、茂名、湛江深度融入粤港澳大湾区联动发展。(完)
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