Combining different temperature change periods and different tunnel locations,study the variation law of the open-ing of the circumferential and longitudinal joints of the shield tunnel crossing the river with temperature,and analyze the moni-toring data.In the research,a numerical model is established to simulate the deformation of the rubber gasket and the seg-ment due to temperature changes,and to calculate the seam opening caused by the shrinkage of the rubber gasket and the con-crete segment.The method of linear regression fitting is used to analyze the linear relationship between the variation of seam opening and temperature.The temperature data of the Nanjing Dinghuaimen Yangtze River Tunnel is used to predict the seam opening.The fitting data of the seam opening is compared and verified with the monitoring data,and the comparison results are in good agreement.
维普
万方数据