经历5年时间建设,随着一声爆破巨响,属川藏铁路拉萨至林芝段重点控制性工程的巴玉隧道,上周六(2日)上午9时50分正式贯通。该隧道属川藏铁路第3条贯通的10公里以上特长隧道,为川藏铁路拉萨至林芝段2021年通车,打下坚实基础。
巴玉隧道连接西藏山南市加查县和曲松县,沿雅鲁藏布江大峡谷江边而建,全长逾13公里,最高海拔约达3500米,最大埋深2080米,其中94%位于岩爆区。“岩爆”是一种复杂的动力型地质灾害,在开挖或其他外界扰动时,岩石会爆裂并弹射出来,直接威胁施工人员和设备的安全。
巴玉隧道在施工过程中曾多次发生岩爆,单次最长持续时间超过40小时,是世界隧道施工史上罕见。在施工过程中,施工人员还要克服高地温、通风排烟困难等问题。
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MYR 850.00 /Month
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MYR 850.00 /Month
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