四川会理至云南禄劝高速公路首隧贯通|欧洲国产伦久久久久久久
中新网成都7月4日电 (记者 王鹏)记者4日从蜀道集团获悉,四川会理至云南禄劝高速公路(下称会禄高速)铁柳隧道左洞顺利贯通。这是会禄高速全线首条贯通的隧道,标志着这条连接川滇两省的“出川新动脉”建设取得阶段性进展。

会禄高速起于会理县南阁镇,接在建的德昌至会理高速公路,利用G4216线宁南至攀枝花段高速公路至会东县姜州镇,经铁柳镇,止于乌东德金沙江(川滇界),接云南省规划拟建的乌东德至禄劝高速公路。项目设计时速80公里,路线全长约47.7公里,其中新建段长约30公里,概算总投资约77.8亿元,建设工期为4年。
铁柳隧道位于四川省凉山州会东县铁柳镇境内,为左右线分离式隧道,左线全长1517米,右线全长1460米,最大埋深约193米。铁柳隧道地处川西复杂地质带,主要地质为中风化白云岩、粉砂质泥岩伴随软弱夹层,并穿越了踩马水断层不良地质段,地质情况变化多样,施工难度大。
据介绍,该隧道施工过程中,建设团队直面途经断裂带、突泥涌水、围岩等级突变等挑战,采用大机配套,通过数字化管控平台、智能监测系统及标准化工艺工法,精准破解地质难题,结合超前地质预报结果、运用BIM技术模拟施工方案,较原计划时间提前4个月完成贯通任务。
会禄高速全线建成后,会理至昆明车程将由原来的5小时缩短至3.5小时,川南滇北将再添一条“黄金走廊”,对推动凉山州区域经济发展及特色优质资源开发,完善四川南向综合运输大通道,推动攀西经济区与滇中城市群互联互通具有重要意义。(完)
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