圬工拱桥主拱圈病害机理及加固方法

为了经济合理地治理圬工拱桥主拱圈病害,分析了主拱圈裂缝、主拱圈渗水、拱石脱落等常见病害产生的原因,提出了加大截面加固、主拱圈套箍、锚喷混凝土加固以及塞缝灌浆等多种主拱圈加固方法,阐述了各种加固方法的特点,提出了不同方法的适用范围。

Disease Mechanism and Reinforcement Method for Main Arch Rings of Masonry Arch Bridges

In order to manage main arch ring diseases of masonry arch bridges economically and reasonably.This paper analyzed the diseases such as crack,water penetration,stone fall off,stone local weathering fall off,and reasons of masonry main arch rings.And it presented various reinforcement methods such as enlarging section method,the arch ring cover hoop method,anchor spray cement concrete method and plug seam grouting method,then illustrated the characteristics of these methods,finally obtained the applicable scope of these methods.