高压旋喷注浆在预应力管桩桩身缺陷处理中的应用  

The application of high-pressure rotary jet grouting in the treatment of defects in prestressed concrete pipe pile bodies

作　　者：王文 毛银锋 Wang Wen;Mao Yinfeng(Huadong Nuclear Power Survey and Design Institute Group Co.,Ltd.,Ningbo Zhejiang 315000,China;Zhejiang Huazhan Research and Design Institute Co.,Ltd.,Ningbo Zhejiang 315000,China)

机构地区：[1]宁波华东核工业勘察设计院集团有限公司,浙江宁波315000 [2]浙江华展研究设计院股份有限公司,浙江宁波315000

出　　处：《山西建筑》2024年第11期100-103,共4页Shanxi Architecture

摘　　要：预应力管桩广泛应用于各类工程建设中,但在实际工程中经常会因为地质、施工等因素造成桩身缺陷,缺陷的修复效果直接影响到后期的施工进度、施工成本等。通过几种预应力管桩修复手段的机理入手,结合实际预应力管桩修复工程案例,根据桩身缺陷修复前后试验结果对比,得出高压旋喷注浆对于预应力管桩桩身缺陷修复具有良好效果。Prestressed concrete pipe piles are widely used in various types of construction projects.However,defects in pile bodies often occur in actual engineering due to geological and construction factors,and the effect of defect repairs directly affects subsequent construction progress and costs.This paper starts with the mechanisms of several pile repair methods,by comparing test results before and after the repair of actual pile defects in case studies,concludes that high-pressure rotary jet grouting has a good effect on the repair of defects in prestressed concrete pipe piles,providing a reference for similar engineering treatments.

关 键 词：高压旋喷注浆 预应力管桩 桩身缺陷 低应变 

分 类 号：TU473.1[建筑科学—结构工程]