摘要
在地铁基坑工程施工中,受地质条件和工程环境的影响,其围护结构的变形千差万别。以宁波市轨道交通1号线一期工程TJ-Ⅷ标东环南路站基坑工程为例,根据现场的监测数据分析,找出变形规律。研究成果发现:基坑最大变形与挖土深度成高度正关联关系,基坑不同深度的变形呈"弓形",并对同一深度附近的土体影响较大。
During metro excavation construction,impacted by the geological conditions and the project surroundings,the retaining structure will vary widely.Taking South East-ring Rd.Station excavation project,Bid TJ-Ⅷ of Ningbo Urban Rail Transit L1(Phase I) for example,the deformation rules are obtained by analyzing the site monitoring data.The research results may show that a high positive correlation exists between the maximum deformation and excavation depth,the deformation at different depths is bow-shaped with greater impact on the near soil of the same depth.
出处
《中国市政工程》
2013年第4期80-82,98,共3页
China Municipal Engineering
关键词
深基坑
变形
监测
混凝土支撑
deep foundation pit
deformation
monitoring
concrete support
