摘要
以某市地铁某换乘区间深基坑工程为依托,基于当地地质水文条件,优化内支撑体系,提出复杂内支撑设计方案,并通过结合数值模拟及现场监测进行验证。结果表明,该体系可将围护结构最大水平位移控制在23.6 mm,邻近地铁隧道沉降量小于8 mm,满足规范及地铁保护要求;数值模拟与现场监测数据均在合理误差以内,验证了设计的科学性与合理性。
Relying on the deep foundation pit project in the transfer section of a city’s subway,and based on the local geological and hydrological conditions,the internal support system was optimized and a complex internal support design scheme was proposed,which was validated through a combination of numerical simulation and on-site monitoring.The results show that this system can control the maximum horizontal displacement of the enclosure structure to 23.6 mm,and the settlement of the adjacent subway tunnel to less than 8 mm,meeting the standards and subway protection requirements;numerical simulations and on-site monitoring data were within reasonable errors,verifying the scientific and rational nature of the design.
作者
吴鑫鑫
WU Xin-xin(China Railway Shanghai Design Institute Group Co.Ltd.,Shanghai 200000,China)
出处
《工程建设与设计》
2026年第3期55-58,共4页
Construction & Design for Engineering
关键词
深大基坑
双地铁区间
复杂内支撑体系
软土地区
deep foundation pit
dual subway line section
complex internal support system
soft soil area
