摘要
结合北京地铁16号线达官营站的工程施工实践,研究了地铁车站主体结构在PBA法地下洞室施工时的地表沉降规律。分析了不同导洞开挖面通过地表沉降监测点时的地表沉降特点;使用Peck模型对地表沉降数据进行回归分析,得出了PBA法多导洞施工对地表沉降影响的一般规律;并提出了PBA法洞室施工控制地表沉降的辅助措施,以期为今后类似工程的施工提供参考和借鉴。
Based on the practical experience of Beijing subway line 16 Daguanying Station project, this paper studied the ground surface subsidence rules of the main structure of subway station when constructing by the PBA cavern-pile method. Additionally, the paper analyzed the characteristics of the ground surface subsidence when different excavating faces of pilot tunnel pass the monitoring points of ground surface subsidence, and used the Peck model to do regression analysis of the ground surface subsidence data. Finally, this paper proposed some suggestions for construction of the PBA cavern-pile method to provide some references for further subsequent projects.
出处
《地理空间信息》
2017年第9期97-99,共3页
Geospatial Information
基金
兰州交通大学青年科学基金资助项目(2013006)
关键词
PBA
地表沉降
Peck
沉降控制
PBA
ground surface subsidence
Peck
subsidence control
