某铁路路基地质雷达探测病害及分析研究

Disease detection and analysis of railway subgrade by geological radar

以某重载铁路公司K492+070K492+380段路基下沉、边坡浆砌地段鼓起等病害为研究对象,采用新技术GR-IV型地质雷达系统对病害现场5条线从不同角度对路基内部结构进行测试和分析,因本次采用的是新技术、新方法,其对工作原理及数据计算进行了详细的分析和推算,旨在通过现场探测及调查,综合分析找出路基病害原因,提出加固建议及其控制技术要点,以达到预期加固效果,为类似工程项目提供技术参考和加固依据。

The subgrade subsidence and heaving of side slope diseases of section between K492 ＋ 070 and K492 ＋ 380 of heavy-haul railway are tested and studied. The new-type geological radar were used to detect the subgrade diseases of 5 lines and the corresponding laws were analyzed.As key techniques,the data processing method and calculation theory are introduced in detail. The aim of the research is to find the reason of subgrade diseases by in-situ tests and investigations. The reinforcement measures and suggestion are proposed,which can propose references for similar engineering cases.