
5月23日讯,去年,长常北线高速长益段正式通车,极大减轻了长张高速的通行压力,该高速公路最东端的观音岩互通因与周边对接的银星路暂未连通,给市民出行带来一定不便。
22日,作为长常北线高速连接银星路的“咽喉”工程——银星路观音岩隧道右主线正式贯通,这标志着该项目2个主线隧洞全部贯通,施工正式进入大干冲刺阶段。项目计划今年10月底完成主体施工,年底可实现通车,届时从银星路和雷锋大道开车上长常北线高速仅需约2分钟。

作为银星路连接线控制性工程, 观音岩隧道于2019年进场施工,隧道全长497米,在国内首次采用双向十车道四连拱隧道结构形式设计,主体工程涵盖两主线、两辅道、三导洞,四个隧道紧临,一次施工成型,施工工艺极为复杂,整个隧道开挖跨度达64米,属超大跨径,开挖跨度创国内隧道纪录。
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