预应力扩大头锚索在深基坑支护工程中的应用

The Application of Prestressed Enlarged Anchor Cable Support in Deep Foundation Pit

预应力扩大头锚索作为锚杆支护的新工艺、新技术,近年来较为广泛地应用于深基坑支护工程中,其施工技术也日趋成熟.相比普通锚杆,扩大头锚索具有单根抗拔力大、位移小、可靠性高、经济性好等特点,其支护效果亦得到业内认可.

The prestressed enlarged anchor cable as a kind of bolting is a new technology,in the past few years it was more widely applied in deep foundation pit support,its construction technology becomes mature gradually.Compared with ordinary bolt,enlarged anchor with single uplift force,small displacement,high reliability,economy and good features,its supporting effect has also been recognized.