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“女生扣逼theporn”-知识课堂

西康高铁首条万女生扣逼theporn米隧道贯通

来源: 湖北日报
2024-12-13 10:51:18

最佳回答

“女生扣逼theporn”西康高铁首条万女生扣逼theporn米隧道贯通

  中新女生扣逼theporn网西安12月11日电(张远女生扣逼theporn 焦键 张伟)由西成客专陕西公司建设、铁一院设计、中铁十九局承建的西康高铁华家山隧道11日顺利贯通,这是西康高铁首条万米隧道贯通,标志着西康高铁全线控制工程取得阶段性进展。截至目前,西康高铁隧道已贯通10座,隧道工程完成设计总量的95%,为下一步无砟道床施工奠定了坚实基础。

图为隧道进口处。马千里 摄

  西康高铁华家山隧道地处秦岭腹地,位于陕西省安康境内,隧道全长13153米,最大埋深532米,洞身地层有灰岩、千枚岩、板岩、片岩以及其互层,以千枚岩、片岩为主,属于软质岩,Ⅳ、Ⅴ级围岩占比73.4%,均处于极高地应力状态,是西康高铁的重难点控制性工程之一。

  为确保施工安全质量,西成客专陕西公司持续深化精品工程创建,切实加强网格化和穿透式管理,从组织穿透、制度穿透、责任穿透、管理穿透4个方面入手,建立健全项目部“一竿子插到底”的穿透式工作机制,使各项业务管理尤其是安全管理工作自上而下一体贯通到底,实现了安全“零事故”、质量“零隐患”、环保“零投诉”目标。此外,中铁十九局严格执行“先探测、管超前、短进尺、弱扰动、强支护、快封闭、勤量测”的原则,对开挖参数积极优化,大力推行大型机械化和普通机械化设备配套,成功克服了不良地质、有限空间的诸多难题,确保了质量和安全,提高了施工效率。

  西安至安康高速铁路是国家中长期铁路网规划“八纵八横”高铁通道中包(银)海通道、京昆通道的重要组成部分,新建正线全长约171公里,设计时速350公里/小时,线路自规划西安东站南端引出,跨越浐河,穿越秦岭,经过柞水、镇安、旬阳,接入规划安康西站,设西安东、太河、柞水西、镇安西、桐木、安康西6个车站。

  西康高铁建成通车后,西安至安康铁路运行时间将由现在的3小时左右缩短至1小时以内。将大幅缩短关中城市群与陕南秦巴山区的时空距离,改善沿线地区客货运输服务水平。对释放关中与陕南间的运输需求,助力乡村振兴,促进地方经济发展具有重要意义。(完)

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