
7月11日,仁遵高速第五合同段火儿坝1号隧道左洞顺利贯通,标志着仁遵高速实现首条隧道双幅贯通。该隧道的双幅贯通,进一步畅通施工运输通道,为仁遵高速控制性工程团结特大桥的主桥施工打下坚实基础。据了解,火儿坝Ⅰ号隧道位于遵义市汇川区松林镇境内,隧道长830m,最大埋深约为176m,为极小净距隧道。隧道前期施工遭遇各种困难,左洞进洞时出口端右侧属于高填方,工作面狭窄,施工设备无法进洞,下方正进行抗滑桩施工,交叉作业安全风险高,且右侧危石难以清理。但仁遵项目相关单位全力为施工开路,保证了隧道施工质量,做到了“安全零事故”。
目前,立足于隧道贯通的良好条件,仁遵高速控制性工程团结特大桥遵义岸拱座大体积混凝土浇筑、缆吊系统等施工将进一步提速。为实现团结特大桥总体施工进度目标奠定坚实基础。
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