基于水动力学方法的输水隧洞糙率反推研究

Inverse deduction study of roughness of water delivery tunnel based on hydrodynamic method

为提高输水隧洞糙率反推的准确度,文中以引细入汤输水工程为研究实例,采用水动力学方法对其糙率进行反推。结果表明,水动力学方法反推的输水隧洞糙率相比于传统恒定流方法更为合理,符合输水隧洞糙率实际情况。研究成果对于提高输水隧洞过水能力复核精准度具有重要参考价值。

In order to improve the accuracy of Inverse deduction of roughness of water conveyance tunnel,this paper takes the water conveyance project from Xihe river to Tanghe river as an example and adopts the hydrodynamic method to Inverse deduction roughness.The results show that the inverse hydrodynamic method is more reasonable than the traditional constant flow method and conforms to the actual situation of the tunnel roughness.The research results have important reference value for improving the accuracy of checking the water flow capacity of water conveyance tunnel.