摘要
本文结合广州某深大基坑支护工程实例,介绍了"钻(冲)孔桩+1道混凝土支撑+2道预应力锚索"支护体系,并详细阐述了止水桩、钻孔桩、预应力锚索等施工工艺,监测结果表明基坑位移及沉降均满足规范及设计要求,最后对深大基坑施工中应注意的事项提出了合理建议,为类似的大型深基坑支护工程施工提供参考。
Taking one large and deep foundation pit project in Guangzhou as an example,the support structure employs drilling piles and one piece of reinforced concrete strut and two pieces of pre-stressed anchor ropes.And the construction procedures including sealing piles,drilling piles and pre-stressed anchor ropes are introduced detailedly.By means of monitoring,a conclusion is drawn that the excavation deformation and settlement meet standard and design requirements.Moreover,several improving suggestions for large and deep foundation pit construction procedure are given in this paper.It provides guidance for similar projects.
出处
《广东土木与建筑》
2010年第11期43-46,共4页
Guangdong Architecture Civil Engineering
关键词
预应力锚索
深大基坑
止水帷幕
支护
pre-stressed anchor rope
large and deep foundation pit
water cutting
support
