1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China；2. Engineering Consulting Co. Ltd, China Academy of Railway Sciences, Beijing 100081, China
Abstract：Based on the vibration transmission characteristics in soil, an analytical prediction model of ground vibration response induced by metro floating-type track is presented. Through the model, the calculation of ground vibration response is transferred to two parts—forces on the base of floating-type track and soil vibration frequency response functions. Then method of superposition in frequency domain is adopted to calculate the ground vibration response induced by metro. The model is used to predict the ground vibration response at the floating slab track section of Beijing Metro Line 4, and in-site measurements is also done to validate the calculated results vibration response. Comparative results show that: the main vibration frequencies of prediction results and measurement results are both around 8~10Hz and they have the same vibration amplitudes in frequency domain. The Z vibration level is 54.0dB for the measurements and 56.1dB for the prediction. The analytical prediction model has characteristics of fast speed, high accuracy and prediction in frequency domain. The model can effectively predict ground vibrations induced by metro. And it’s an effective supplement to the existing environmental assessment prediction methods.
吴宗臻;刘维宁;马龙祥;王文斌. 地铁浮置式轨道引起地表振动响应解析预测模型研究[J]. , 2014, 33(17): 132-137.
Wu Zong-zhen ;Liu Wei-ning;Ma Long-xiang;Wang Wen-bin . Study on the analytical prediction model of ground vibration response induced by metro floating-type track. , 2014, 33(17): 132-137.
2014, Vol. 33 
