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随着电力电缆隧道直径逐渐加大、埋深逐渐加深,在施工过程中会对地表周边环境造成较大的影响。本文利用盾构法隧道施工技术对环境影响小且施工快的优点,结合对上海世博北京西路～华夏西路电力电缆隧道工程监测的数据,并考虑盾构施工的相关因素,采用土体扰动机理,得出了盾构隧道施工过程中地表纵向及横向断面沉降的规律。同时,阐述了如何合理使用peck曲线对横向沉降进行预测,控制施工中地表的沉降。
As the diameter of the power cable tunnel gradually increases, the depth of the tunnel gradually deepens, and the surrounding environment of the surface will be greatly affected during the construction. In this paper, we use the advantages of shield tunnel construction technology on the environment and the construction of fast, combined with the monitoring data from the Beijing West Road to Huaxia West Road, Shanghai World Expo and considering the related factors of shield construction, Mechanism, obtained the construction of shield tunnel longitudinal and transverse surface during the settlement law. At the same time, it expounds how to use the peck curve reasonably to predict the horizontal settlement and control the settlement of the surface during construction.