5月19日,银洲湖高速公路古兜山隧道举行全面动工及进洞施工活动,标志着该项目实体工程建设迈上新台阶,全面掀起大干热潮。
古兜山隧道位于新会区崖门镇古兜山境内,双向六车道设计,隧道双洞平均长度为3291.5米,洞身最大埋深221米,为特长隧道,工程地质复杂,施工过程面临穿越破碎带、下穿高压线塔、侧穿水库等困难,是银洲湖高速控制性工程之一。
据介绍,古兜山隧道采用分离式隧道(洞口小净距),隧道平面为S型曲线,纵面为人字坡。左线隧道进口采用端墙式,出口采用削竹式;右线隧道进口采用端墙式,出口采用削竹式。主要采取双侧壁导坑、三台阶七步作业、全断面光面爆破等工法。
银洲湖高速公路由北向南连接鹤山市、蓬江区、新会区,项目建成后将推动银湖湾滨海新区、广海湾经济开发区发展,对江门打造粤港澳大湾区西翼门户枢纽城市和珠西综合交通枢纽具有重要意义。
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