高速铁路路基智能压实与检测技术研究  

Research on Intelligent Compaction and Detection Technology of High-speed Railway Subgrade

作　　者：岳茂 杨长卫[1] 申雪松 周秋来 王鹏翔 刘洋[4] YUE Mao;YANG Changwei;SHEN Xuesong;ZHOU Qiulai;WANG Pengxiang;LIU Yang(Southwest Jiaotong University,Chengdu 610031,China;China Railway No.3 Engineering Group Co.,Ltd.,Taiyuan 030001,China;Sichuan Swjtu Railway Development Co.,Ltd.,Chengdu 610041,China;China Railway Eryuan Engineering Group.Co.,Ltd.,Chengdu 610031,China)

机构地区：[1]西南交通大学,成都610031 [2]中铁三局集团有限公司,太原030001 [3]四川西南交大铁路发展股份有限公司,成都610041 [4]中铁二院工程集团有限责任公司,成都610031

出　　处：《高速铁路技术》2024年第4期50-55,93,共7页High Speed Railway Technology

基　　金：四川省交通运输科技项目(2023-A-03);四川省科技计划资助(2024YFHZ0121)。

摘　　要：本文在京滨城际铁路北辰站开展了现场路基连续压实检测试验,探讨振动轮与填料表面加速度特征,同时对能量压实值CEV的适用性进行研究。研究结果表明,碾压过程中振动轮上的加速度时程数据较为稳定,地面加速度数据的基波频率与振动压路机的弱振模式频率一致。通过相关性分析,CEV与常规检测指标的相关系数≥0.7,表明CEV整体上的稳定性、抗干扰能力与精准度皆优于CMV,更适用于A组、B组粗颗粒填料的压实度检测。This paper carries out on-site continuous compaction detection of subgrade conducted at Beichen Station of Beijing-Binhai Intercity Railway,to explore the acceleration characteristics of the vibrating wheel and the filler surface,and investigates the applicability of the Compaction Energy Value(CEV).The research findings indicate that the acceleration time history data recorded from the vibrating wheel during the rolling process is relatively stable,and the fundamental wave frequency of the ground acceleration data is consistent with the soft vibration mode frequency of the roller.Through correlation analysis,the correlation coefficients between CEV and conventional testing indicators are all≥0.7,suggesting that CEV is better than CMV in overall stability,anti-interference ability and accuracy,thereby making it a more suitable tool for compaction testing of group A,group B coarse-grained fill.

关 键 词：高速铁路路基 连续压实检测 基波频率 压实能量值 相关性 

分 类 号：U416.1[交通运输工程—道路与铁道工程]