深基坑开挖引起的水平位移实测分析.pdfVIP

学兔兔 江苏建筑 2013年第1期(总第 153期) 深基坑开挖引起的水平位移实测分析 史春乐1,2王鹏飞2，王小军2，芮 科 · ( 昆山市住房和城乡建设局，江苏昆山215300； 昆山市建设工程质量检测中心，江苏昆山215300； 3河海大学岩土力学与堤坝工程教育部重点实验室，江苏南京210098； 河海大学岩土工程科学研究所，江苏南京210098) 『摘 要1 结合某高档综合楼12 m深基坑开挖施工过程的现场监测结果，分析了深基坑开挖引起支护结构和邻近土体水 平位移的形态和发展过程．及其与地基土质条件、基坑开挖施工工序之间的关系。并统计了最大水平位移发生的位置。结果 表明，土体的水平位移大于支护结构的水平位移；最大水平位移发生在坑底附近；底板浇筑完成后，水平位移仍在发展，但增 量有限。 f关键词1 深基坑开挖；水平位移；变形形态；现场测试 【中图分类号】TU463 [文献标识码】A[文章编~]1005—6270(2013)O1—0089—04 Field Monitoring Analysis of Lateral Displacements Caused by Deep Excavation SHI Chun—le ， WANG Peng-~i。 WANG Xiao-jun RUI Ke · f1．Bureau of Housing and Urban—Rural Development of Kunshan，Kunshan Jiangsu 215300，China； 2．Kunshan Construct Engineering Quality Testing Center,Kunshan Jiangsu 215300，China； 3．Key Laboratory of Geomechanics and Embankment Engineering of Ministry of Education，Hohai University，Nanjing Jiangsu 210098，China；4．Geotechnical Research Institute，Hohai University，Nanjing Jiangsu 210098，China) Abstract：Field monitoring is carried out during the construction of a 1 2 m deep excavation for the foundation of a luxury complex building．The characteristics and the development of the lateral displacements of retaining wall and its surrounding soils are analyzed．Also investigated are the displacement-related ground conditions and construction process of the deep excavation，together with the locations where the maximum lateral dis— placements occur．It is shown that the lateral displacements of soils are greater than those of retaining struc— ture．Th e maximum lateral displacements occur near the base of the excavation．After the construction of foun— dation base plate，the lateral dis