2016年8月上 施工技术 第45卷第15期 CONSTRUCTION TECHNOLOGY 99 D0I:10.7672/8js2016150099 软土地层深基坛隆起变形规律及其对周围建筑物 的影响* 杜磊,王育平 (山东科技大学矿业安全学院,山东岛266590) [摘委]以北京菜地区深基工程为背景,采用工程经翰法和有限元拟种方法,对施工过程中成的底隆 起、建物差异沉障进行结算,分别指出了基悦最大变形和建物相对危险源,分析了2种方法的优点,示 了2种方法对工程预估的现实意义.出了基悦开挖过程中由地的沉降方程以及悦底隆起与开挖深度之间 的指敷关季. [美键词]地下工程:深基悦:隆起:变形;差异沉降:有限元分析 [中图分类号]TU753[献标识码]A[支章编导]1002-8498(2016)15-0099-05 Soft Soil Foundation Excavation Uplift Deformation Law and Its Impact on Surrounding Buildings Du Lei Wang Yuping College of Mining and Safety Engineering Shandong University of Science and Technology Qingdao Shandong 266590 China) Abstract:According to the engineering practice in Beijing engineering experience and finite element simulation are applied to estimate the bottom uplift the building differential settlement caused by the construction process.It respectively indicated maximum deformation values of foundation excavation and the relative hazard of building the advantages and disadvantages of the two methods are analyzed revealing the significance of their project estimates.It made the equation of free surface settlement exponential relationship between bottom uplift and excavation depth. Key words:underground;deep foundation excavation;uplift;deformation;differential settlement;finite element analysis 0引言 控制施工灾害具有重要的意义. 随着城市化进程的不断加快,地下空间的开发 目前,图内外学者已从理论、数值伤真和现场 与利用成为城市建设的主要方向.城市建设中遇监测角度对基坑隆起变形规律及其对周围环境的 到越来越多的深基坑工程,基坑开挖大多在城市影响展开研究,如孙钓根据模型试验与实测数据 繁华地段,临近道路、既有建筑物等地面结构及地 的对比分析,提出了判断坑底失稳的依据;刘燕[3] 铁、腿道等地下工程川.基坑开挖,打破...