Although buried corrugated steel pipe culverts have been studied intensively in the past decades, the stress development law between crest and valley during backfilling process is still not analyzed sufficiently, which is an important technical difficulty for the construction of this kind of structures. In this paper, a three-dimensional finite element model (FEM) is developed to simulate the behavior of buried pipes during construction and the stress development law within a wavelength (curvature of corrugated pipe) ranging at the crown and the spring-line inside the pipe is proposed. Based on the measured stress data of a porous continuous corrugated steel plate pipe-arch culvert, the proposed three-dimensional FEM and stress development law are verified. The results show that the stress variations in a wavelength range of corrugated steel plate are trigonometric curves. With the increase of the backfilling height, the ratio of the stress at the crest or valley, to that of the spring-line is reduced, while the axial force is increased. The absolute value of the bending moment decays and the pipe culvert tends to be ring compression as the backfilling height increased. The study verifies the "ring compression theory" and the necessity of the minimum burial depth in design. Meanwhile, some design and construction guidelines which is necessary for the structure safety during backfilling process are provided for buried corrugated steel pipe culverts.

尽管在过去的几十年中对埋入式波纹钢管涵进行了深入研究，但回填过程中波峰与波谷之间的应力发展规律仍未得到足够的分析，这是构造此类结构的重要技术难题。本文建立了三维有限元模型（FEM），以模拟埋管在施工过程中的行为以及应力波在波状管冠和弹簧线范围内的波长（波纹管的曲率）内的发展规律。建议使用管道。根据实测的多孔波纹板钢管拱涵的应力数据，验证了所提出的三维有限元和应力发展规律。结果表明，波纹钢板在波长范围内的应力变化为三角曲线。随着回填高度的增加，波峰或波谷处的应力与弹簧线的应力之比减小，而轴向力则增大。弯矩的绝对值会下降，并且随着回填高度的增加，管涵趋向于受到环压。该研究验证了“环形压缩理论”以及设计中最小埋葬深度的必要性。同时，为埋入式波纹钢管涵管提供了一些回填过程中结构安全所必需的设计和施工指南。轴向力减小，而轴向力增加。随着回填高度的增加，弯矩的绝对值会下降，并且管道涵洞趋向于受到环压。该研究验证了“环形压缩理论”以及设计中最小埋葬深度的必要性。同时，为埋入式波纹钢管涵管提供了一些回填过程中结构安全所必需的设计和施工指南。轴向力减小，而轴向力增加。弯矩的绝对值会下降，并且随着回填高度的增加，管涵趋向于受到环压。该研究验证了“环形压缩理论”以及设计中最小埋葬深度的必要性。同时，为埋入式波纹钢管涵洞提供了一些回填过程中结构安全所必需的设计和施工指南。