
广惠高速改扩建项目在广州段首次规模化应用全自动就地固化智能施工装备,通过北斗导航和数字监控平台实现无人化精准施工,提升软基工程质量并形成全过程质量管控闭环。
AI-generated summary
广惠高速改扩建项目沿线浅层软土含水率高、承载力低,传统施工方法如清淤换填或就地固化存在质量不稳定问题,项目选择就地固化方案但需解决关键参数控制难题。
中新网广州9月29日电 (记者 蔡敏婕)29日,在广惠高速改扩建项目工地,一台智能设备缓缓驶向预定位置。操作人员按下按钮后,搅拌头自动扎入地基软土,将固化剂与土体就地拌和,整个过程由系统自动完成。这是全国高速公路首次规模化应用全自动就地固化成套施工装备。
规模化应用全自动就地固化智能施工装备。广东交通集团 供图
此前,该项目的浅层软基就地固化首件施工已通过均匀性和承载力检测,标志着这一新技术迈出实质性一步。
广惠高速改扩建项目全长约153.9公里,沿线部分路段浅层软土含水率高、承载力低,施工组织难度大,直接在上面施工,路基会不断下沉。而常用办法是清淤换填或就地固化,即把软弱土层挖除后再以强度高的材料回填,或向土层掺入固化剂进行改良。
结合沿线弃方量大、环保要求高的实际,项目选择了就地固化方案,但该工艺的加固效果与土质均匀性、地下水条件等密切相关,其中,关键参数控制是否稳定,更是直接决定加固效果。
“我们引入了全自动无人化就地固化智能施工装备,将原来的人工判断转变为了智能调控,提升软基工程施工品质,这在行业内尚属首次使用,目前已在申请专利。”广惠高速改扩建项目工程技术部部长温剑东介绍。该智能装备配置包含搅拌机器和自动控制系统。施工前,工人只需要在系统中输入施工范围和设计参数后,即可自动生成作业点阵和三维轨迹,依托北斗导航实时动态差分定位技术,机器自己就知道在哪个点位作业,以及输送固化剂的深度。
施工中,装备实时采集转角、倾角、压力、转速等数据,动态感知作业状态,并按设定参数完成行走、回转和搅拌,精准控制搅拌深度、固化剂掺量和搅拌速率,施工效果更有保障。同时,还能识别疑似硬物,自动停机、抬升并预警,技术人员在安全区域远程监控和应急处置,实现无人化自动作业。
为进一步保障工程质量,项目还引入了数字监控平台,完整记录工序实施过程,让每次作业都有了一份自己的“数字档案”。
作业期间,装备位置、作业轨迹、搅拌深度与速率、固化剂供给和异常预警等数据,都通过数字平台写入这份“档案”。随后,该平台将设计参数、执行状态和作业结果进行关联比对。技术人员可在此基础上开展质量检查、问题追溯和参数优化,形成施工、监测、预警、归档闭环,质量管控由事后检查转向全过程控制。
广惠高速改扩建项目起于广州黄埔、终于惠州惠东。其中,小金口至萝岗段由双向六车道扩建为双向十车道,小金口至凌坑段由双向四车道扩建为双向八车道。项目建成后,将强化粤港澳大湾区对粤东区域的辐射带动能力,为广东“百千万工程”及区域高质量发展提供重要交通支撑。(完)
AI outlook — possibilities, not facts
该全自动就地固化智能施工装备将在广惠高速其他路段推广应用
Likely · Within months
数字监控平台将成为高速公路软基工程质量管控的标准做法
Possible · Within years

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