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以国内某大型水电站地下厂房岸塔式进水口塔为研究对象,建立了三维有限元模型.对进水口塔结构的主要静力工况进行了计算,详细分析了不同的塔背混凝土有效回填高度下结构的应力与变形;基于ABAQUS用户子程序成功开发了4节点单自由度用户单元,较好地模拟了动水压力与结构之间的相互作用,对进水口塔结构在施工期与运行期两个工况进行了动力计算,详细分析了不同的塔背混凝土有效回填高度下结构的动力特性.总结了有效回填混凝土高度对进水口结构动静性能的影响趋势,可供类似工程借鉴.
A three-dimensional finite element model was established for the tower inlet tower of underground power plant in a large hydropower station in China, and the main static conditions of inlet tower structure were calculated, and the effective backfill height The structure and the deformation of the lower structure; ABAQUS user subroutine based on the successful development of a 4-node single degree of freedom of the user unit to better simulate the hydrodynamic pressure and the interaction between the structure of the inlet tower structure during the construction and operation period The dynamic characteristics of two structures under dynamic backfill height are analyzed in detail, and the influence of effective backfill concrete height on the dynamic and static performance of inlet structure is summarized, which can be used for reference of similar projects.