气泡混合轻质土在小跨径通道桥桥头路基中的应用

Application of Foamed Light Soil in the Filling of Bridehead of Small Span Channel Bridge

文中以粤港澳大湾区某新建高速公路为背景,对台后回填气泡混合轻质土-柱式桥台处理方案和台后回填石屑-扶壁式桥台处理方案进行经济性、施工工期、安全性等3个方面的分析比较,结果表明,在解决小跨径通道桥桥下空间不足、桥头台后跳车等问题方面,气泡混合轻质土-柱式桥台具有造价低、工期短、安全性好等优势,为类似工程提供借鉴和参考。

On the background of a newly-built expressway in the Greater Bay Area, this paper made a comparative analysis between the backfilling foamed light soil-buried abutment treatment scheme and the backfilling rock chips-buttress abutment treatment scheme from the aspects of economy, construction period and safety. The results showed that the foamed light soil-buried abutment had advantages in low cost, short construction period and good safety when approaching problems of insufficient space under small span channel bridge and jumping behind the abutment. The results could provide a reference for similar projects.