吴坑隧道特殊岩性段塌方原因分析及处理方案

近年来,我国的隧道施工安全事故较为频发,研究隧道的施工方法,确定合理的支护参数,确保隧道施工安全在我国铁路建设领域中具有重要意义。新建龙厦铁路吴坑隧道在施工过程中,由于种种原因,多次发生塌方事故,实践证明,只有对隧道的塌方原因进行正确的分析,才能制定好合理的工程措施和支护参数,确保隧道施工安全,减少经济损失。本文总结分析隧道产生塌方的原因,对工程有关技术管理人员积累经验、吸取教训,预防隧道塌方事故的发生有一定的借鉴意义。

Accidents occur frequently in the construction of Chinese tunnel in recent years. So the research of the methods of construction, the estimation of the proper supporting parameters and safety in tunnel of railway construction seem significant. In the construction of LongXia railway tunnel, which is in WuKeng, collapse occurred several times due to different reasons, which proves that only the analysis of cause of collapse made precisely ,the proper project measure and supporting parameters of tunnel and the safety of construction could be confirmed. The loss of possession could be reduced as well. The different reasons of collapse are summarized in this paper. This paper will be beneficial for engineers to gather experience or learn a lesson to prevent collapse in tunnel happened.