Numerical prediction of train and vehicle induced ground vibrations and their effects on structures

该项目将开发一种基于耦合有限元和尺度边界有限元分析的创新方法，用于预测道路交通和地下或地面列车引起的地面振动。该方法将立即应用于交通工程中，以预测交通引起的地面振动，在岩土工程中设计隔离沟槽和波障以消散波的传播，以及在结构工程中估计结构内振动水平并为内部敏感设备设计隔振器。该技术将涉及尺度边界有限元方法的基本进展，因为计算将在移动参考系中进行。

This project will develop an innovative new method based on coupled finite element and scaled boundary finite-element analysis for predicting the ground vibrations induced by road traffic and underground or surface trains. The method will have immediate application in transportation engineering to predict traffic-induced ground vibrations, in geotechnical engineering to design isolation trenches and wave barriers to dissipate wave propagation, and in structural engineering to estimate in-structure vibration level and design isolators for sensitive equipment housed within. The technique will involve fundamental advances in the scaled boundary finite-element method, as calculations will be performed in a moving reference frame.