结合三峡工程实际，对坝内埋管结构进行了１∶５大比尺仿真材料结构模型试验，着重研究了大直径、高水头坝内埋管结构在运行期温度荷载、坝体荷载和内水压力共同作用下的应力和强度问题试验结果表明：该埋管结构具有较高的抗裂能力和极限承载力，可保证三峡水电站的安全运行． Combined with the actual project of the Three Gorges Project, a 1: 5 large-scale simulation material structure model test was carried out for the buried pipe structure in the dam, and the influences of temperature load, dam load and inner water on the pipe structure with large diameter and high head dam during operation The stress and strength problems under the common pressure  The test results show that the buried pipe structure has high crack resistance and ultimate bearing capacity to ensure the safe operation of the Three Gorges Hydropower Station.