【作者】 蒋通； 张昕；

【Author】 JIANG Tong, ZHANG xin( Tong ji University Shanghai 200092; Shanghai Shihe Narada Real Estate Co., Ltd.., Shanghai 200120)

【机构】 同济大学土木工程防灾国家重点实验室； 上海时和南都置业有限公司；

【摘要】 我国第一条城市高架轨道交通线路-明珠线已在上海建成并投入运行。本文从现场实测和数值分析两个方面研究明珠线引起的环境振动实况、发生机理及振动传播规律。根据实测资料,提出了预测明珠线引起的环境振动振级的统计回归公式。建立了车-桥子结构和框架-地基基础子结构两个体系的计算模型并提出了计算方法。计算了明珠线典型区段在列车通过时引起的周围地面的振动。数值计算结果表明,利用本文提出的计算模型和方法算得的结果与统计回归公式符合较好。更多还原

【Abstract】 The first urban viaduct rail transit, the Mingzhu Line, has been constructed and put into operation in Shanghai, China. In this paper the realities, the mechanism and the propagation of the environmental vibration induced by the Mingzhu Line is studied by both observational and theoretical methods. Based on the observed dataset a statistic regression formula is suggested to assess the environmental vibration induced by Mingzhu Line. The ground vibration has been numerically analyzed utilizing the train-bridge system and the frame-foundation-soil system. The comparison between the theoretical and the observational results shows satisfactory agreement.更多还原