结合泥水平衡式顶管施工在铁路工程的应用,针对引起路基沉降的因素分析,提出沉降量的估算方法,并在具体工程中采取沉降监测、确保注浆质量、合理掌握顶进速度、控制顶进轴线偏差,以及顶进后对触变泥浆及时进行置换等措施,有效控制了路基沉降值,保证了施工中及施工后阶段的铁路行车安全,可为此类工程提供借鉴。 Combined with the application of slurry balanced pipe jacking in railway construction, aiming at the factor analysis of subgrade settlement, the method of estimating settlement is put forward. In the concrete project, sedimentation monitoring is adopted to ensure the quality of grouting, control the jacking speed reasonably, Into the axis deviation, and after threshing the thixotropic mud in time for replacement and other measures to effectively control the subgrade settlement values ​​to ensure the construction and post-construction phase of the railway traffic safety, for such projects to provide reference.