大瑞铁路400余名建设者奋战在地下765米|freesexvideos性少妇欧美
中新网云南保山10月3日电 题:大瑞铁路400余名建设者奋战在地下765米
作者 李开平 侯云鹏
国庆假期,大瑞铁路高黎贡山隧道1号竖井工区内机械轰鸣、车流不息。400多名建设者在地下765米的施工现场,夜以继日地推进工程建设。

大瑞铁路高黎贡山隧道1号竖井位于云南省保山市龙陵县境内,深度765米,为中国铁路领域最深竖井。目前,该隧道主副井任务已建设完成,于2024年5月正式转入正洞施工。该项目采用“平导+正洞”双线同步施工,其中正洞规划总长4.6公里,剩余3.1公里;平导规划总长5.5公里,剩余3.3公里。
施工过程中,4个作业面同时施工产生的大量渣土,一直是制约工程进度的关键难题。渣土需从4个不同作业面,先通过装载机装车运送到主井下方的沉渣场,随后经第二次装载机装桶,再通过深井提升至765米外的地表。这种“二次倒运+深井提升”的繁琐流程,导致一桶渣土从作业面运抵地表,最快也需要30多分钟,极大限制了工程施工进度。
“我每天的工作就是把渣土装到渣车上,每天大概装15到16车,一天工作8个小时。”在1号隧道从事装载渣土的驾驶员张少林说。
“提升运维就是把渣土从隧道通过765米深的主井,运送到地面。我们一个班8个小时运送100多桶渣土。”连续工作几个小时后的提升运维员杨占华说。
“我们1号竖井工区井下有4台挖机、8台装载机、6台运输渣车,全天不停地循环作业,每天运送渣土1300多方。”大瑞铁路高黎贡山隧道1号竖井生产副经理王长波一边指挥着隧道里的渣土车一边介绍。

除了渣土清运的严峻任务,1号竖井的400多名建设者还面临着软弱围岩、40摄氏度高温及富水等多重技术与环境难题。
随着工程施工的持续推进,1号竖井工区到了项目建设的关键阶段和攻坚期,10多个部门及班组克服重重困难,24小时不间断作业,全力推进项目建设,为大瑞铁路实现早日贯通的目标全力以赴、奋力前行。
“目前,我们遇到了平导大里程到达断裂带,正洞大里程到达镇安活动断裂带的情况。为尽快正常施工,各部门与各班组全力沟通配合,尽快安全地通过本段。”大瑞铁路高黎贡山隧道1号竖井工程部技术员李烨介绍。(完)
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