考虑建筑既有变形的盾构穿越扰动控制标准  

Undercrossing Disturbance Control Criterion for Shield Tunnel With Consideration of Building Existing Deformation

作　　者：葛世平[1,2,3] 谢东武[1,2] 丁文其[1,2] 杨洪杰 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]同济大学岩土及地下工程教育部重点实验室,上海200092 [3]上海申通地铁集团有限公司,上海201103 [4]上海申通轨道交通研究咨询有限公司,上海201103

出　　处：《同济大学学报（自然科学版）》2011年第11期1616-1621,共6页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金资助项目(50878149);教育部新世纪优秀人才资助项目(NCET-08-0403);上海申通地铁集团资助项目(STTC-HT-001)

摘　　要：市区软土地层中进行隧道施工引起的地层沉降会影响地面既有建筑的安全.提出考虑建筑既有变形的盾构穿越扰动双控控制标准.结合上海市轨道交通11号线下穿越保护建筑徐汇中学崇思楼工程,对穿越前崇思楼进行检测,对崇思楼既有沉降进行分析,评估崇思楼穿越前状态.制定考虑建筑既有变形的盾构穿越崇思楼允许变形控制指标.对穿越进行全程监测,验证所提出控制指标的合理性.Ground movements caused by the tunnel construction in soft ground endanger the safety of the existing building.Double control criterion was proposed for shield tunnel undercrossing by taking the existing deformation of building into consideration.For Shanghai Metro Line 11 undercrossed the Chongsi Building,Xuhui Middle School,the deformation of Chongsi Building was detected and analyzed,and the status of the building was assessed.The double control criterion for shield tunnel undercrossing Chongsilou Building was established based on a consideration of the building existing deformation.A management over the section under-crossing the Chongsi Building proves the feasibility of the deformation control criterion.

关 键 词：盾构 穿越 扰动 建筑既有变形 双控控制标准 

分 类 号：TU473.2[建筑科学—结构工程]