自带钢绞线一次注浆扩大头预应力锚索的应用  

APPLICATION OF ONE-OFF GROUTING ENLARGED HEAD PRESTRESSED ANCHOR CORD WITH STEEL STRAND

作　　者：仝喜祥 TONG Xi-xiang(China State Construction Second Engineering Bureau Co.,Ltd.,Shanxi Branch,030000,Taiyuan,China)

机构地区：[1]中国建筑第二工程局有限公司山西分公司,太原030000

出　　处：《建筑技术》2022年第2期173-176,共4页Architecture Technology

摘　　要：为保证在深基坑复杂地质支护中锚索成孔的施工质量,提高锚索轴向抗拔力,增大锚索锚固对土体的影响范围,提高锚索整体的锚固效果且便于施工。经分析锚索作用原理,研发自带钢绞线一次注浆成型扩大头预应力锚索施工技术,质量可满足标准要求。To guarantee the construction quality of anchor cord hole drilling of deep foundation pit in complicated geological conditions, axial withdraw resistance of anchor cord was improved, function scope of anchor cord in soil was increased and the overall anchorage effect of anchor cord was improved, to realize convenient construction. After analysis on the principle of anchorage cord function,one-off grouting enlarged head prestressed anchor cord with steel strand was developed to satisfy the specified quality requirements.

关 键 词：深基坑支护 自带钢绞线 一次注浆成型 扩大头锚索 

分 类 号：TU74[建筑科学—建筑技术科学]