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采用室内变坡水槽,通过组合不同坡度(5o、10o、15o、20o、25o和30o)、不同流量(1 m3/h、1.5 m3/h和2 m3/h)室内模拟放水冲刷试验,对三维土工网护坡坡面流水动力学特性进行了研究。结果表明,坡面流流态为紊流,流型为急流;坡面冲刷深度—坡度、阻力系数—坡度及阻力系数—雷诺数呈正相关的幂函数关系;阻力系数—弗汝德数呈负相关的幂函数关系。研究成果对深入揭示三维土工网护坡坡面侵蚀的水动力过程具有重要的理论意义。
The indoor flushing experiment with different slope (5o, 10o, 15o, 20o, 25o and 30o) and different flow rates (1 m3 / h, 1.5 m3 / h and 2 m3 / h) The hydrodynamic characteristics of the slope on the slope are studied. The results show that the flow pattern of the slope is turbulent and the flow pattern is the rapids. The erosion depth - gradient, drag coefficient - slope and drag coefficient - Reynolds number show a positive power function relationship. The drag coefficient - Froude number is negative Related power function relations. The research results have important theoretical significance for revealing the hydrodynamic process of the slope erosion in three-dimensional geotechnical network.