MC桩在某广场工程基坑支护中的应用  

Application of MC Composite Retaining Structure in Deep Excavation Engineering

作　　者：梁新华 周文苑[2] 黄广龙[2] 

机构地区：[1]南京市建筑安装工程质量监督站,江苏南京210007 [2]南京工业大学土木工程学院,江苏南京210009

出　　处：《工程质量》2009年第3期26-29,共4页Construction Quality

摘　　要：介绍了水泥土重力式挡墙与混凝土桩组合支护结构(MC桩)在某广场工程基坑施工中的应用情况。施工中,MC桩组合支护结构较好地发挥了二者的优点,即水泥土桩的止水和混凝土桩的挡土优势,确保了基坑工程的安全稳定和变形控制要求。此外,在水泥土挡墙中增加混凝土桩后,可减小水泥土重力式挡墙的宽度,降低工程造价。The composite retaining structure compiled with soil-cement pile and concrete pile （named MC pile） is applied in the project in recent years, which can be very effective on controlling the deformation of retaining wall and reducing the effects of the surrounding environment by excavation. A practical excavation engineering is given here which the MC piles composite retaining structure is used as retaining structure. As concrete piles are inserted in the soil-cement retaining wall, the wall can be reduced in width remarkably. The monitoring data show that the displacement of the wall is smaller than common soil-cement retaining wall without inserting concrete piles, and the composite structure can also fully meet the requirements of stability and deformation in the course of construction and achieves the desired supporting effect.

关 键 词：基坑工程 MC桩 组合支护结构 变形 稳定性 

分 类 号：TU473.1[建筑科学—结构工程]