搅拌桩+灌注桩工法在狭小施工场地中的应用

Mixing Piles and Bored Piles Applied on Narrow Working Site

以苏州地铁1号线星明街站3号出入口围护结构变更方案为例,通过计算分析,介绍单轴/双轴搅拌桩及钻孔灌注桩复合式围护体系在地铁车站附属围护结构施工中的应用,用以解决通常采用的SMW工法中三轴搅拌桩机械对施工场地要求较高的问题,从而减少施工过程中对市民出行造成的干扰。

Citing the modified option of the enclosure construction for the entrance No.3 into Xingmingjie Station on Suzhou metro Line 1 as an example,the author introduces the application of uniaxial and bi-axial mixing piles and bored piles for the composite enclosure construction of the subsidary station structure based on computation and analysis. This solved the problem of higher requirements to the working site for the equipement of tri-axial mixing piles adopted in the conventional SMW （Soil Mixing Wall） method; thereupon the disturbance to the walking people was alleviated.