Hardfill坝模型试验中扬压力影响程度研究

发布时间：2018-06-26 04:52

本文选题：结构模型试验 + 扬压力　；参考：《人民长江》2017年S1期

【摘要】：Hardfill坝型具有水化热低、安全性高、抗震性好、对地基条件要求低等特点,具有很强的适应性和极高的推广价值。在对这种新坝形开展模型试验时,受模型试验的限制一般不对扬压力进行模拟,这样必然会对试验结果产生一定影响。采用数值模拟来分析扬压力对于坝体的影响,从而考察模型试验中不考虑扬压力对试验结果的影响。结果表明,扬压力对坝踵处应力值影响较大,对于其他点的变位和应力值,差异均在10%以内,扬压力的综合影响较小。
[Abstract]:The Hardfill dam type has the characteristics of low hydration heat, high safety, good seismic resistance and low requirement for foundation conditions. It has strong adaptability and high popularization value. When the model test is carried out on this new type of dam, the uplift pressure is generally not simulated under the limitation of the model test, which is bound to have a certain influence on the test results. The influence of uplift pressure on dam body is analyzed by numerical simulation, and the influence of uplift pressure on test results is investigated. The results show that the uplift pressure has a great influence on the stress value at the dam heel, and the difference for the displacement and stress values of other points is less than 10%, and the comprehensive influence of the uplift pressure is relatively small.
【作者单位】：四川大学水力学与山区河流开发保护国家重点实验室;四川大学水利水电学院;
【基金】：国家重点研发计划(2016YFC0401908) 国家自然科学基金资助项目(51379139)
【分类号】：TV131.61

【相似文献】