摘要
针对建筑基坑支护类型探讨了预应力锚杆柔性支护在土质基坑工程中的应用。从预应力锚杆柔性支护结构组成出发,即钢筋网混凝土面层、预应力锚杆和锚固结构下承载结构等组成部件,阐述了预应力锚杆柔性支护在基坑支护施工过程中的主要流程,并结合湖南省境内某深基坑工程实例,对不同预应力下锚杆支护效果进行应力监测和追踪,总结出柔性支护下基坑位移最小和预应力损失也为最小等结论,该新型加固技术对基坑支护提供了一种借鉴。
This paper discusses the application of the construction technique of pre-stressed anchor flexible support in foundation pit,aimed at support types of construction foundation pit.Starting from pre-stressed anchor flexible support structure composition,namely steel mesh concrete surface layer, pre-stressed anchor and the support structure under anchorage structure and other components,elaborate the main procedure in construction process of pre-stressed anchor flexible support in the foundation pit;combining an example of deep foundation pit engineering in Hunan Province,carry out stress monitoring and tracking of anchor support effect in different pre-stress,and conclude that when the foundation displacement under flexible support is minimum,pre-stress loss is minimum,therefore,the new strengthening technology provides a reference for foundation pit support.
出处
《中国建材科技》
2016年第4期124-126,共3页
China Building Materials Science & Technology
关键词
建筑基坑
支护类型
预应力锚杆
监测
construction foundation pit
support type
pre-stressed anchor
monitoring
