Abstract: The stress and deformation characteristics of steel corrugated pipe culverts and the distribution law of earth pressure around the pipe culvert during the dynamic filling process were analyzed. Based on the Marston’s theory， a calculation formula of vertical earth pressure was constructed and verified by experimental data and finite element calculation. The results show that the strain fluctuation increases with the filling height. When the filling height is 3.6m， the strain of the internal and external measuring points reaches the maximum values. After the filling completed， the strain of the internal measuring points can be both in tension or compression， while strain of the external measuring points are mainly in tension. The horizontal and vertical deformation increases with the increase of filling height at the pipe side， which takes on a vertical ellipse shape. The vertical earth pressure at the top of the pipe culvert is the largest， and the vertical earth pressure coefficient increases with the inclination angle.

Key words: road engineering; steel corrugated pipe culvert; mechanical property; field test; vertical earth pressure; finite element calculation