大连地铁隧道的监控量测和数值模拟

摘要

According to the surface subsidence displacement, convergence displacement of tunnel surrounding, vault settlement etc. of Jiaoshi section of Dalian subway one phase project 208 made process and analysis, made numerical simulation to tunnel step method construction using elastic-plastic analysis method, and compared the surrounding deformation prediction values with the actual measured values, analysed the causes of errors, had important significance to ensure the safety of existing facilities and construction process.%针对大连地铁一期工程208标段交师区间隧道地表沉降位移、洞周收敛位移、拱顶沉降等进行了处理和分析，对隧道台阶法施工采用弹塑性分析方法进行数值模拟，并对围岩变形预测值与实际量测值进行了比较，分析误差产生的原因，对保证已有设施的安全和施工过程的安全具有重要的意义。