高层建筑沉降对施工阶段拟建隧道影响模拟分析

Simulation of High Building Settlement on Planned Metro Tunnel

在运营和拟建的轨道交通线路周围进行任何工程建设,都将对线路的轨道和结构变形产生影响。为正确评估此类工程建设活动的影响,必须选用合理的计算方法、计算模型和计算参数。以实际工程为背景,利用有限元-半无限元耦合静力计算模型,预测分析了某高层建筑后期沉降所引起的不同施工工况下拟建地铁区间隧道的变形和内力值,并提出了控制高层建筑沉降影响的建议。

Any engineering construction near the operating rail transit or a planned line will influence the track and structure. In order to evaluate this influence, reasonable calculation method,model and parameters must be employed. Based on the factual engineering,the authors use a coupled calculation model through FEM-Semi Infinite Element Method, to forecast and analyze the deformation and inner stress in a planned metro tunnel, which will be influenced by the settlement of a high building nearby. The authors argue that reasonable and effective measures and advices shall be taken to control the influence caused by the settlement of the high building.