【摘要】 为研究水下不分散混凝土与土体及桩身混凝土间界面的黏结性能，文章设计一系列界面黏结受拉和受剪试验，试验特别考虑了不同粉煤灰掺量对水下不分散混凝土的界面黏结破坏形态及力学性能的影响。结果表明：水下不分散混凝土与土体的受拉、受剪破坏均在土体的同一侧；水下不分散混凝土与桩身混凝土间界面的受拉、受剪破坏均位于两者界面处。其中，当粉煤灰掺量为20%时，水下不分散混凝土的性能相对较好。更多还原

【Abstract】 In order to study the interfacial bonding performance between underwater non-dispersible concrete and soil/pile concrete, a series of interfacial bonding tensile and shear tests were designed, and the effects of different fly ash content of underwater non-dispersible concrete on the failure forms and mechanical properties of the interfacial bonding specimens were considered. The test results show that the tensile and shear failure of underwater non-dispersible concrete and soil occurs on the soil side. The tensile and shear failure of the interface between underwater non-dispersible concrete and pile concrete initiates at the interface. Notably, the performance of underwater non-dispersible concrete is relatively superior when the fly ash content is 20%.更多还原