重庆某高填方边坡及结构基础设计

Design of a high fill slope and structural foundation in Chongqing

项目位于斜坡冲沟地带,形成了高差33.5m土质填方边坡。上部结构位于填方斜坡上,为典型的山地建筑。设计时对冲沟部位高填方边坡分级处理,最下阶采用桩板挡墙支挡,其余各阶采用地下室外墙进行支挡,每阶控制高度不超过两层地下室。通过边坡分阶及轻质泡沫土换填等方式,有效降低了土压力,避免了产生结构架空空间。采用MIDAS GTS软件分析了填方边坡对支护结构及主体结构的相互影响,对边坡挡墙及结构基础进行了相应加强处理,保证了填方边坡的整体稳定及主体结构的安全,相关加强措施可为同类结构参考。

The project is located in the slope gully zone,forming a soil fill slope with a height difference of 33.5m.The superstructure is located on the fill slope,which is a typical mountain building.During the design,the high fill slope at the gully part is graded.The lowest step is supported by a pile slab retaining wall,and the rest of the steps are supported by the basement exterior wall.The control height of each step shall not exceed two basement floors.The earth pressure is effectively reduced and the overhead space of the structure is avoided by means of slope grading and replacement of light foam soil.MIDAS GTS software was used to analyze the mutual influence of the fill slope on the support structure and the main structure,and the slope retaining wall and structural foundation were strengthened accordingly to ensure the overall stability of the fill slope and the safety of the main structure.Relevant strengthening measures can be used as a reference for similar structures.