锚杆静压桩不卸载情况下桩孔内锚固封桩技术探索  

Exploration on the Technology of Sealing Pile Without Unloading in the Pile Hole of Anchor Jacked Pile

作　　者：李小玥[1] 翁功伟 

机构地区：[1]中天建设集团有限公司,浙江杭州310020

出　　处：《施工技术》2016年第7期37-39,69,共4页Construction Technology

摘　　要：针对传统锚杆静压桩封桩的不足之处,采用不卸载孔内锚固封桩技术,即在桩顶施加荷载情况下封桩,待封桩混凝土达到一定强度后撤去施加荷载,此时桩与基础能够立即发挥作用,从而有效减少建筑物附加沉降。通过多个工程实践证明,改进的施工工艺能有效减少回弹效应及建筑物附加沉降,封桩后质量可靠。According to the shortage of tradition sealing pile of anchor jacked pile,the technology of sealing pile without unloading was adopted. Applied load seal at the top of the pile,removed the applied load when the sealed concrete reached the intensity. Then the pile and foundation can play their roles immediately,so as to effectively reduce building additional settlement. Through many engineering practices,the improved construction technology can effectively reduce the rebound effect and the additional settlement of buildings,the quality of the pile is reliable.

关 键 词：桩 锚杆静压桩 不卸载封桩 锚固 施工工艺 

分 类 号：TU745.3[建筑科学—建筑技术科学]