某公路桥头路基液化土地基分析及处治设计

Analysis and Treatment Design of Bridge Subgrade Liquefied Soil Foundation of a Highway

以某一级公路K0+210—K0+235段桥头路基液化土地基分析及处治设计为依托,结合其工程地质情况,对桥头路基液化土地基进行液化判别和液化指数计算分析,根据判别和液化指数计算结果进行桥头路基液化土地基处治设计,最终采用预应力混凝土薄壁管桩(PTC)设计方案,经计算确定处治后的地基满足工程建议要求,在此为同类工程提供设计参考。

In this paper,based on the analysis and treatment design of the bridge subgrade liquefied soil foundation of K0+210—K0+235 section of a first-class highway,combining with its engineering geological condition,the calculative analysis of the liquefaction determination and liquidity index were carried out,then according to the calculation,the final treatment scheme of the bridge subgrade liquefied soil foundation was designed,which is adopting prestressed concrete thin-wall pipe pile(PTC).After calculation,the treated foundation has met the requirements of engineering proposal,which can provide design reference for similar projects.