基于旋喷注浆法的高速公路桥梁桩基加固与承载性能研究  

Study on Reinforcement and Load Bearing Performance of Highway Bridge Pile Foundation Based on Rotary Jet Grouting Method

作　　者：袁海龙 YUAN Hai-long(Langfang Traffic Highway Engineering Co.Ltd.2nd Company,Langfang 065000,China)

机构地区：[1]廊坊市交通公路工程有限公司二公司,河北廊坊065000

出　　处：《工程建设与设计》2025年第6期75-77,共3页Construction & Design for Engineering

摘　　要：针对现有桥梁桩基因设计和使用不规范而引发的桩基质量和承载力下降问题,研究在分析了具体的工程概况和加固难点后,提出了以旋喷注浆为重点的桩基加固方法,在阐述其技术参数和步骤后,以静载测试的方式进行了承载性能检验。试验结果表明,旋喷注浆法下桩基的最大沉降为125 mm,相较于压力注浆法平均值减少了52.5 mm。In view of the quality and bearing capacity degradation of pile foundations caused by the non-standard design and use of existing bridge pile genes,the study proposes a pile reinforcement method focusing on rotary injection grouting after analyzing the specific engineering profiles and reinforcement difficulties,and the bearing capacity was examined by static loading test after describing its technical parameters and steps.The experimental results show that the maximum settlement of the pile foundation under the rotary injection grouting method is 125 mm,which is 52.5 mm less than the average value of the pressure grouting method.

关 键 词：旋喷注浆法 桩基加固 承载性能 静载测试 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]