Analysis and Control Measures for Settlement Deformation of Shield Tunnel Undercrossing Old Building Group
With the continuous acceleration of urbanization,the problem of urban congestion continues to intensify.The subway has become an important choice to solve traffic problems in large cities in China.Shield method construction is a common method for subway interval construction.Shield undercrossing old buildings has been very common in subway construction in central urban areas.How to control surface settlement during construction has always been the focus of shield undercrossing buildings.This paper introduces the construction risks of shield method construction,and analyzes the control measures of shield undercrossing old building group based on the completed shield construction case of Wang-Pei interval of Jinan rail transit line R3.Finally,the effectiveness of each measure is verified by monitoring data.