【摘要】 为解决竹缠绕复合管涵在分层回填的施工控制问题，并研究此过程中管涵的力学性能，文中通过现场试验，监测2 m埋深竹缠绕复合管涵施工过程变形与与力学响应，建立了基于连续壳复合材料叠层的有限元分析模型。数据分析表明，土压力、管底沉降均随回填高度增加线性增大，浅埋阶段，受施工扰动影响，实测值偏大；回填完成后，管涵的计算与模拟竖向变形率分别为1.32%、1.57%，均满足规范要求。建议竹缠绕复合管涵管底沉降与管涵横截面变形可作为施工质量控制指标；所建立模型能较为保守地预测管土响应，可为后续研究提供参考。更多还原

【Abstract】 This paper addresses the construction control issues of bamboo winding composite pipe culverts during layered backfilling. We investigate the mechanical properties throughout this process by monitoring the deformation and mechanical response of a 2-meter buried depth bamboo winding composite pipe culvert through field measurements. A finite element analysis model based on a continuous shell composite laminate is established. The results show that earth pressure and pipe bottom settlement both linearly increase with the increase in backfill height. During the shallow burial stage, due to the influence of construction disturbance, the measured values are relatively higher. After completion of backfilling, the calculated and simulated vertical deformation rates of the pipe culvert are1.32% and 1.57%, respectively, meeting the code requirements. The pipe bottom settlement and cross-sectional deformation of the bamboo winding composite pipe culvert can be served as indicators for construction quality control.The model conservatively predicts the pipe-soil response, providing the reference for future studies.更多还原