监控量测在浅埋地下大断面平顶框架结构施工中的应用分析

城市浅埋大断面地下结构因其结构和建设的复杂性往往成为工程建设的重点和难点。施工中如何利用监控量测技术实时监控围岩、支护结构、中间构造结构等之间的受力转换往往成为施工关键。结合北京城市快速轨道交通东直门车站地下方厅工程实例,探讨和分析了应用浅埋平顶群洞暗挖法施工过程中监控量测技术和方法,并对监测结果进行了比较分析,验证了施工方法的合理有效性。

Application Analysis of Monitoring Construction of Underground Shallow Large-section Flat Frame Structure

The urban shallow large-section underground structure has become important and difficult part of engineering because of the complexity of its structure and construction.How to apply monitoring technology to supervise the stress transition of surrounding rock,supporting and intermediate structures has become the critical step of the construction.The paper took the example of Dongzhimen Station project in Beijing Urban Rail Transportation,discussed and analyzed the monitoring technology and method in the deep excavation construction of shallow flat group cavities.Comparative analysis was made on monitoring results to verify the rationality of the construction method.