【作者】 王阳阳； 单红仙； 刘小丽； 郑建国； 李进军；

【Author】 WANG Yangyang~①SHAN Hongxian~(①②) LIU Xiaoli~(①②) ZHENG Jianguo~(①②) LI Jinjun~①(①College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100)(②Key Laboratory of Marine Environment and Ecology,Ministry of Education,Ocean University of China,Qingdao 266100)

【机构】 中国海洋大学环境科学与工程学院； 海洋环境与生态教育部重点实验室；

【摘要】 青岛地铁北站毗邻胶州湾,地处垃圾填埋场,该区域垃圾土的组成十分复杂,上层是结构松散的建筑垃圾层,下层由生活垃圾组成,目前国内在该地质条件下开挖深基坑工程项目较少,能够提供的监测数据有限。桩体水平位移监测的重要性在于能够动态指导地下工程施工,并积累工程数据为以后的岩土工程优化设计服务,本文结合青岛火车北站地铁A区基坑桩体水平位移的的实时监测数据,根据监测结果,总结垃圾场区开挖基坑过程中桩体水平位移的变化规律和发展趋势,重点分析监测过程中出现异常的数据,提出报警原则及基坑开挖工程的进一步处理措施和测斜管的保护措施,为下一步基坑开挖提供实际经验。更多还原

【Abstract】 The north subway station in Qingdao is adjacent to the Jiaozhou Bay,and it is located in the sanitary landfill.The composition of the soil is very complex.For the upper layer is the loose construction debris and the lower layer is the living waste.Presently,limited monitoring data is provided for excavation of less deep foundation projects under this geological condition.The importance of monitoring on horizontal displacement of pile is that it can guide the construction of underground works dynamically and collect engineering data for optimizing of the geotechnical engineering design.In this paper,based on the real-time monitoring data of pile body horizontal displacement in Zone A of the Metro North station,variation of pile body horizontal displacement during foundation excavation in landfill area and the development trends were summarized,especially putting an emphasis on abnormal data analysis during the monitoring process.Furthermore,alarm principles and further measures of foundation excavation were raised and protection measures of the inclined pipe were also proposed.It can provide valuable practical experience for the next pit excavation.更多还原