深层水泥搅拌桩在水闸工程中的运用及施工

Application and Construction of Deep-layer Concrete Stirring Poles in Water Gate Engineering

在广东珠江三角洲地区 ,软弱土地基分布很广 ,土层厚 ,主要为淤泥或淤泥质粘土 ,是一种软塑到流塑状态的饱和软弱土 ,天然含水量大 ,压缩性高 ,抗剪强度及承载力很低 ,流变性大。在该地区修建水闸 ,地基处理是一个非常突出的问题 ,本文结合两个工程的地基处理方法 ,论述了深层搅拌在水闸工程中的运用。

The soillayer in the Pearl River Delta in Guangdong Province is mainly composed of sludge or sludge clay, forming a soft and thick superstratum.This layer is a saturated soft mud with soft-plastic to flowing-plastic nature.Such mud shows high moisture, high contractability, low cut-resistance and loading capacity and serious flowing deformation.So the treatment of the superstratum is one of the important issues for the building of water gate in such an area.The application of stirring in deep layer was illustrated on the basis of two examples of treating the superstratum for two engineering projects.