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针对深圳地铁下穿电缆隧道的实例,通过采用位移加载法模拟隧道开挖效应和弹性地基梁理论分析管土相互作用,提出将地铁上方的既有隧道视为大管径管线考虑,分析了地铁左线施工引起的地层响应,并借助相关控制标准对电缆隧道的安全性作出评价,分析结果表明:数值计算结果与实测数据吻合较好,电缆隧道也处于安全状态,可为相关类似工程研究提供借鉴。
Aiming at the case of the underground tunnel under the subway in Shenzhen, the tunnel excavation effect is simulated by the displacement loading method and the soil-soil interaction is analyzed based on the elastic foundation beam theory. The existing tunnel above the subway is considered as a large-diameter pipeline. The stratigraphic response caused by the left-hand construction is evaluated. The safety of the cable tunnel is evaluated based on the relevant control standards. The analysis results show that the numerical calculation is in good agreement with the measured data and the cable tunnel is also in a safe state. It can provide relevant engineering researches Learn from