水利水电技术（中英文）

现有的顶管施工扰动理论及相关研究都是基于直线顶进工况,在曲线顶进工况下则存在一定的适用性问题。在对现有直线顶进扰动机理及沉降预测方法分析的基础上,研究曲线顶进的施工扰动机理及扰动范围大小,并提出了相应的地表沉降范围的估算方法和估算公式,同时以二维有限元为工具,对比研究曲线顶进和直线顶进施工的扰动变形规律,验证理论分析结果,为曲线顶管施工引起的周边地层变形扰动范围的估算提供依据,最后,从实际工程出发,经定量计算对比,得出了曲线外侧扰动范围小于直线顶进单侧扰动范围、直线顶进单侧扰动范围小于曲线顶进内侧扰动范围的研究结论。

The existing pipe jacking construction disturbance theory and related research are based on the linear jacking condition, and the application of the curve jacking condition has applicability problem. Based on the analysis of the existing prediction methods of linear pipe jacking disturbance mechanism and settlement on the curve of the jacking construction disturbance mechanism and the size of the load disturbance, and the estimation method and the estimation formula of the corresponding surface subsidence range is proposed, at the same time by two-dimensional finite element method, comparative study on the curve of the top range of construction into the construction disturbance and the size of the top line, verify the results of theoretical analysis, provide the basis for estimating the size of the surrounding strata, caused by the deformation of the pipe jacking curve finally, starting from the actual project, the quantitative calculation and comparison curve of lateral disturbance range is less than the linear jacking disturbance range was obtained, and the linear perturbation conclusions range is less than the curve of the inside part of the perturbation range.