软土基坑强制搅拌斜向支撑桩的应用

Application of Forced Mixing Oblique Supporting Pile in Soft Soil Foundation Pit

文中以某基坑工程为例,对软土地区强制搅拌斜向支撑桩的设计及施工进行分析,并对施工效果进行评价。结果表明,上部放坡开挖、下部双排法组合钢管桩结合强制搅拌斜向支撑桩,随着深度的增加,土体水平位移不断降低,基坑最大水平位移11.4mm,各个环节的检测值均未超过预警值,表明强制搅拌斜向支撑桩施工效果良好,有效控制施工过程中的变形。强制搅拌斜向支撑桩经济成本低,施工周期短,具有良好的推广应用价值。

Taking a foundation pit project as an example,this paper analyzes the design and construction of forced mixing oblique supporting pile in soft soil area,and evaluates the construction effect.The results show that with the increase of depth,the horizontal displacement of soil decreases continuously,the maximum horizontal displacement of foundation pit is 11.4mm,and the detected value of each link does not exceed the warning value,indicating that the construction effect of the forced mixing inclined supporting pile is good and the deformation in the con-struction process is effectively controlled.The forced mixing inclined supporting pile has lower economic cost and shorter construction period,and has good application value.