超大直径盾构隧道施工期间螺栓断裂是复杂的力学过程。它受到盾构施工过程中诸多因素的影响。通过对螺栓受力状况的试验,并结合盾构推进过程中相关参数、盾尾同步注浆量及注浆压力、隧道沉降监测数据,详细分析了管片纵向螺栓断裂的原因,可供类似工程参考和借鉴。 Bolt fracture during the construction of super-large-diameter shield tunnel is a complicated mechanical process. It is affected by many factors in the process of shield construction. Based on the test of the bolt stress, and the related parameters in the process of shield advancement, the synchronous grouting amount at the shield tail and the grouting pressure and the settlement monitoring data of the tunnel, the reasons for the longitudinal bolt fracture in the pipe segment are analyzed in detail. Reference and reference.