摘要
为了评估新旧道路搭接施工后的沉降特性并制定有效处理措施,以国道350线广安枣山至武胜段公路改建工程为案例,开展了沉降观测布点、周期控制与数据分析,并结合软基换填、注浆加固、支挡结构等施工技术手段进行处置。研究结果表明,通过合理布设观测点和分阶段调整观测频率,能准确掌握沉降演化规律;采取处理措施后,累计沉降量、沉降速率显著下降,结构稳定性和通行性能大幅提升,推动了交通基础设施建设高质量发展。
To evaluate the settlement characteristics after the lap construction of old and new roads and formulate effective treatment measures,this paper takes the reconstruction project of National Highway 350 from Guang'an Zaoshan to Wusheng Section as a case study.It carries out settlement observation point layout,cycle control,and data analysis,and combines construction technical means such as soft foundation replacement,grouting reinforcement,and retaining structures for disposal.The results show that the evolution law of settlement can be accurately grasped by reasonably arranging observation points and adjusting the observation frequency in stages.After the implementation of treatment measures,the cumulative settlement and settlement rate have significantly decreased,and the structural stability and traffic performance have been greatly improved.Promoted the high-quality development of transportation infrastructure construction.
作者
严海洋
胡羽
Yan Haiyang;Hu Yu(Guang'an Transportation Investment,Construction and Development Group Co.,Ltd.,Guang'an,Sichuan 638500)
出处
《现代工程科技》
2025年第15期45-48,共4页
Modern Engineering Technology
关键词
实际案例
新旧道路
搭接施工
沉降观测
处理技术
practical case
old and new roads
lap construction
settlement observation
treatment technology
