摘要
桥梁结构在高强度荷载和复杂环境作用下易产生各类裂缝病害,严重影响结构耐久性与运营安全。压力注浆工艺作为桥梁裂缝修复领域的重要技术路径,凭借其高效渗透性、结构填补能力及界面耦合特性,在裂缝治理中展现出高度适应性。以压力注浆在路桥养护桥梁裂缝修复中的工程适配机制为研究主线,深入剖析其微观锁结、应力重构、腐蚀阻断与材料协同等技术效应,提出低压渗透注浆、高压灌浆闭合法、多级变压注浆技术以及可逆式负压辅助注浆工艺。压力注浆工艺的各项应用方式构建了一套理论驱动与工程响应耦合的裂缝修复系统,体现出结构加固与防护功能融合的发展趋势。
Bridge structures are prone to various crack diseases under the action of high-intensity loads and complex environments,which seriously affect structural durability and operational safety.As an important technical approach in the field of bridge crack repair,pressure grouting technology has shown high adaptability in crack treatment due to its efficient permeability,structural filling capacity and interface coupling characteristics.Focusing on the engineering adaptation mechanism of pressure grouting in repairing bridge cracks in road and bridge maintenance,this paper deeply analyzes its technical effects such as micro-locking,stress reconstruction,corrosion blocking and material synergy,and proposes low-pressure permeation grouting,high-pressure grouting closure method,multi-stage variable pressure grouting technology and reversible negative pressure assisted grouting process.These application methods construct a set of crack repair systems coupling theoretical drive and engineering response,reflecting the development trend of integrating structural reinforcement and protective functions.
作者
谭飞
Tan Fei(Shandong Hi-speed Maintenance Group Co.,Ltd,Jinan,Shandong 250000)
出处
《现代工程科技》
2025年第13期137-140,共4页
Modern Engineering Technology
关键词
桥梁裂缝
压力注浆
结构响应
渗透修复
bridge cracks
pressure grouting
structural response
permeation repair
