| 张军,周宇.上跨大交通量高速公路坦拱桥快速拆除控制技术研究[J].安徽建筑大学学报,2026,34(3):66-73 |
| 上跨大交通量高速公路坦拱桥快速拆除控制技术研究 |
| Research on Rapid Demolition Control Technology of Flat Arch Bridge Over High-Traffic Expressway |
| |
| DOI： |
| 中文关键词: 坦拱桥 高速公路 拆除技术 结构稳定性 交通组织 |
| 英文关键词: flat arch bridge expressway demolition technology structural stability traffic organization |
| 基金项目:安徽省高校自然科学研究重点项目（2022AH050248） |
|
| 摘要点击次数: 9 |
| 全文下载次数: 0 |
| 中文摘要: |
| 上跨大流量高速公路的坦拱桥拆除工程技术复杂、安全管控风险高。本文以G4222和县至襄阳高速公路六安段霍山枢纽建设工程上跨 G35济广高速公路的坦拱桥拆除施工为例，分析该类桥梁拆除工程的特殊性，研究全幅封路爆破拆除、全幅直接凿除、切割吊装拆除及半幅封路绳锯分段切割拆除四种工艺的施工方法与关键控制要点，对比提出全幅交通封闭、半幅交通封闭工况下，大跨径无腹筋钢筋混凝土坦拱桥快速拆除的最优安全施工技术方案，可为同类涉路桥梁拆除工程施工提供技术借鉴与参考。 |
| 英文摘要: |
| The demolition of arch bridges spanning high-traffic expressways constitutes a specialized engineering endeavor characterized by sophisticated technical requirements and stringent safety standards. This paper, drawing upon the case of the arch bridge spanning the G35 Jiguang Expressway within the G4222 Hexian-Xiangyang-Huoshan Expressway (County Link) Project, conducts a comparative analysis of the distinct characteristics inherent to such bridge demolition scenarios, alongside an evaluation of technical approaches including full-width traffic closure blasting demolition, full direct mechanical chipping removal, cutting-and-hoisting disassembly, and semi-width traffic closure rope-saw segmented cutting. It further proposes optimized safety technical schemes and control strategies for the rapid demolition of large-span non-beam reinforced concrete arch bridges under both full and semi-traffic closure conditions, thereby furnishing technical guidance and a reference framework for analogous bridge demolition projects involving active road passages. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
