标题： 使用拖曳地震阵列和MASW数据的贝叶斯推断对铁路土方工程进行高效的机械评估 显示英文标题

标题： Efficient mechanical evaluation of railway earthworks using a towed seismic array and Bayesian inference of MASW data

摘要： 评估铁路路基（RE）需要非破坏性和高效诊断工具。 本研究评估了使用面波多通道分析（MASW）进行剪切波速度（$V_s$）剖面测量在检测受扰动的RE区域中的低速层（LVLs）的相关性。 为了提高效率，将拖曳地震装置（Landstreamer）与传统装置进行了比较。 一旦经过验证，Landstreamer被部署在道砟上进行滚动采集，显示出显著提高的效率和良好的成像能力。 本研究采用的概率框架进一步增强了不确定性的量化，并有助于$V_s$模型的解释，促进了基础设施管理中的可靠决策。 显示英文摘要

摘要： Assessing Railway Earthworks (RE) requires non-destructive and time-efficient diagnostic tools. This study evaluates the relevance of shear-wave velocity ($V_s$) profiling using Multichannel Analysis of Surface Waves (MASW) for detecting Low Velocity Layers (LVLs) in disturbed RE zones. To enhance time-efficiency, a towed seismic setup (Landstreamer) was compared with a conventional one. Once qualified, the Landstreamer was deployed on the ballast for roll-along acquisition, showing greatly improved efficiency and good imaging capability. A probabilistic framework adopted in this study additionally enhances quantification of uncertainties and helps in interpretation of $V_s$ models, facilitating reliable decision-making in infrastructure management.