软土地层浅部隧道施工引起的地表移动分析

Analysis of Ground Movements Due to Shallow Tunnel Excavation in Soft Soil Strata

根据弹性力学理论给出了软土层浅部隧道开挖地表下沉预测分析的二维理论模型,并用于隧道开挖引起地表下沉的预测分析.在分析过程中,采用Matlab软件进行数值积分计算和图形绘制.通过具体的工程实例计算分析表明,理论计算结果与工程实测资料一致.

The two-dimensional elastic model for the analysis of the ground surface subsidence due to shallow tunnel excavation is established based on elastic mechanics theory.And the theoretical formula of ground surface subsidence due to shallow tunnel excavation in soft soil strata is given and is applied to the analysis of ground subsidence due to shallow tunnel excavation in soft soil strata.The Matlab is used to solve the calculation of the numerical integration and drawing of the figure in the course of the analysis.The agreement of the theoretical results with the field measurements shows that the model is satisfactory.