Abstract：The previous calculations of the vertical earth pressure of culverts in road subgrade or dike projects are often not accurate enough，which lead to inaccuracy in structure design and engineering problem. Aiming at this problem，FEM is adopted to analyze the earth pressure of embedded culvert. It shows that the coefficient of vertical earth pressure gradually increases to a stable value with the increasing of the filling height，and that when the modulus of soils on the two sides is heterogeneous，the uneven deformation leads to the increase of vertical earth pressure. Based on the parameters of the ideal elastoplastic model which are calculated with the testing compression modulus of filling soils under various compaction degree，the coefficient of vertical earth pressure is determined，which agrees well with the earth pressure by in-situ testing. Because there is difference between settlement of the filling and the culvert，the range of coefficient of vertical soil pressure is about 1.2～1.35.
邓国华 邵生俊. 填埋式涵洞上覆土压力的有限元分析[J]. 岩石力学与工程学报, 2004, 23(S1): 4356-4360.
Deng Guohua，Shao Shengjun. FEM ANALYSIS ON EARTH PRESSURE OF EMBEDDED CULVERT IN subgrade OR dike. , 2004, 23(S1): 4356-4360.
2004, Vol. 23 
