《苏州高新技术创业楼基坑支护结构设计》.doc

东华理工大学毕业设计(论文) 摘要 PAGE  东华理工大学毕业设计(论文) 封面 毕 业 设 计（论文） 题 目:苏州高新技术创业楼基坑支护结构设计 英文题目:The Design of Deep Foundation Pit Bracing for The Start-up Building Located in Suzhou Hi-tech Industrial Zones 学生姓名: 朱小云 学 号:指导教师: 侯龙清 专 业: 土木工程 二 零 零 八 年 六 月 摘 要 拟建中的苏州高新技术创业楼位于苏州新区，西邻珠江路，北邻竹园路，场地以北为已建一期工程。由苏州高新技术创业中心投资建设，由4幢高层及裙房，附带下沉式广场及餐饮娱乐设施组成，场地下均设有两层地下室相连通，为框剪和框架结构。建筑场地地表绝对标高在+2.48m和+3.85m之间，以1985国家高程基准为准。基坑实际开挖深度分布：北侧约7.5m，西侧及南侧、东侧均为10m。基坑开挖深度在7.00m-9.00m之间。 结合本工程地质、环境、挖深等诸多因素确定安全可靠的支护方案；为基坑土方开挖和地下室施工创造一个安全干燥的施工环境；考虑到邻近坑边有建筑和道路（下设有水、电、气等管线），为确保安全，以“变形”控制设计。 本着“安全可靠、经济合理、技术可行、施工方便”原则，整个基坑采用一排钻孔灌注桩作挡土结构, 锚杆支撑(局部地段采用钢管竖向斜撑)作为支撑结构体系。基坑四周采用深层搅拌桩作止水帷幕。基坑内采用轻型井点降水+集水坑排水。 关键词：深基坑; 支护结构; 挡土结构; 锚杆支撑; 钢管支撑; 钻孔灌注桩 东华理工大学毕业设计(论文) Abstract Abstract The Hightechnical building in New district is located in SuZhou city,in the western of ZhuJiang Road and north behind ZhuYuan Road,closed with Previous Project One.The contractor,Hightechnical Development Center of Suzhou,do the construction ,consisted by 4 tall buildings and  HYPERLINK /annex/ annexs,sinked plaza and catering entertainment facilities,including 2 basements,classified as frame and shearing wall construction. The average level of the construction for 0.00, absolute level is +2.48m–+3.85 meters,according to the National 1985  HYPERLINK /regulations/ regulations. The depth of excavation is between 7-9 meters. Considering of the geologic environment, excavation depth of the foundation pit, to create an safe and dry surroundings for the earth work and basement, we carry out the design in control of displacement deformation, in order to keep main traffic roads and buildings safe and to protect pipelines of water, electricity and coal gas below the surface well. According with fundamental techni