地铁出入口下穿既有构筑物风险分析及方案比选

Risk Analysis and Scheme Comparison of Subway Entrance Built Under Existing Structures

依托长春地铁解放大路站工程,采用数值模拟与现场实测相结合的方法,建立地铁出入口下穿既有消防水柜数值模型,通过流固耦合方法模拟整个施工过程,对消防水柜蓄水量与施工风险之间的关系进行研究,并采用层次分析法对多种注浆方案进行研究,提出最佳施工方案,来指导实际工程,从最终的施工效果来看,方案切实可行。

Based on the project of Changchun Jiefang Road Subway Station,the method of a combination of numerical simulation and field measurement is used to establish the subway entrance under the fire tank numerical models. Through the method of fluid-structure coupling to simulate the entire construction process,the relationship between the water storage of fire tanks and the risk of construction is studied.And the grouting programme is studied by using the analytic hierarchy process,therefore,the best construction programme is used to guide the actual project. From the effect of the end of the construction,the programme is feasible.