基于地震频率成像精准探测桥涵台背病害应用技术  

Application technology of accurate detection of bridge and culvert abutment back disease based on seismic frequency imaging

作　　者：张重阳 ZHANG Chongyang(China Railway 23rd Bureau Group 1st Engineering Co.,Ltd.,Shandong Rizhao 276800 China)

机构地区：[1]中铁二十三局集团第一工程有限公司,山东日照276800

出　　处：《山东交通科技》2023年第6期9-12,共4页

基　　金：山东省交通运输厅科技计划,项目名称:公路工程桥涵台背回填土沉降探查与注浆控制关键技术研究,项目编号:2021B40。

摘　　要：通过黄河大桥具体工程案例,总结了地震频率成像勘探技术手段在运营期桥涵台背填筑土质量检测中的效果及应用情况,结果表明:桥涵台背在6~8 m深度范围内可能存在软弱土层不密实区或空洞区。该无损检测技术手段为预防桥涵台背不均匀沉降、同时对沉降区域开展注浆治理,保证台背的安全和稳定提供了方向。Through the specific engineering case of the Yellow River Bridge,the effect and application of seismic frequency imaging exploration technology in the quality inspection of bridge and culvert abutment back filling soil during operation are summarized.The results show that there may be an uncompacted zone or an empty zone in the soft soil layer in the depth range of 6~8 m.The non-destructive testing technology provides a direction for preventing the uneven settlement of the abutment back of the bridge and culvert,and carrying out grouting treatment in the settlement area to ensure the safety and stability of the abutment back.

关 键 词：地震频率成像勘探技术 桥涵台背 无损检测手段 质量控制 

分 类 号：U446[建筑科学—桥梁与隧道工程]