党永刚
摘 要:公路桥梁改造工程是农村公路建设中十分重要的一部分,有利于改善原有桥梁的性能,充分发挥桥梁的作用和功能,确保工程使用过程中的稳定性和安全性。与此同时,农村的公路桥梁改造施工要在采取合适的施工技术,以及施工中采取科学的管理措施,才能保证工程的最终质量达到要求。该文将主要以何家台桥改造工程为例,探讨其施工技术与管理措施,以供参考。
关键词:何家台桥 桥梁改造 施工技术 管理措施
中图分类号:F284 文献标识码:A文章编号:1672-3791(2021)03(c)-0085-03
Construction Technology and Management Measures of Rural Highway Bridge Reconstruction Project
—— Taking Hejiatai Bridge as an Example
DANG Yonggang
(Traffic Bureau of Tianzhu Tibetan Autonomous County, Wuwei, Gansu Province, 733299 China)
Abstract: Highway bridge reconstruction project is a very important part of rural highway construction, which is conducive to improving the performance of the original bridge, giving full play to the role and function of the bridge, and ensuring the stability and safety in the process of engineering use. At the same time, the rural highway bridge reconstruction construction should take appropriate construction technology, and take scientific management measures in the construction, in order to ensure the final quality of the project to meet the requirements. This paper will mainly take Hejiatai Bridge Reconstruction project as an example to discuss its construction technology and management measures for reference.
Key Words: Hejiatai bridge; Bridge reconstruction; Construction technology; Management measures
何家臺桥始建于2001年,彼时,地方群众利用国道工程施工剩余的废弃梁板自行搭建桥梁,工程经长期使用后出现了诸多病害问题。为改变桥梁的病害隐患,优化桥梁性能,工程改造也被提上日程。为充分发挥工程改造的作用与价值,有必要认真分析施工技术及管理措施。
1 何家台桥工程概况
何家台桥地处天祝藏族自治县与永登县交界处,原有桥梁无设计图纸和施工、监理资料,为3~20 m钢筋混凝土预应力空心板桥,不具备较强的抗灾能力,桥墩、桥台埋置深度仅有2 m,正常水位冲刷就造成桥墩、桥台基础裸露,铰缝出现开裂、脱落问题。部分桥梁栏杆扶手断裂,桥梁主构件损伤严重,被判定为危桥。现拟定在原桥位建设3~20 m的预应力箱梁桥,按照公路I级设计荷载,同时在桥梁两端的引道路基上设置波形护栏,长度共165 m,起点和终点采用平交处理,与原有道路顺利连接。
2 何家台桥改造工程施工技术……p>