Monitoring Data Analysis and Discussion on Downstream Atomiztion of Flood Discharge of the Pubugou Dam on the Dadu River
By now the Pubugou Dam is the highest core rock-fill dam which is built on deep overburden layer in the world.The flood discharge structures of the dam are arranged on the left bank.And the Chengdu-Kunming railway line and a train station are located on the right bank around 2 km downstream the dam.By the end of 2009, the construction of Pubugou Dam was completely finished.From Jul.2010 to Aug.2012, the running time of flood discharge tunnel summed to over 2 000 h, and the maximum flow of flood discharge reached 3 400 m3/s.According to the field measurement, the actual maximum atomization-precipitation of railway central part is below 6 mm/h, which indicates a significant difference compared with the previous calculation.The operation of Pubugou Dam and its flood discharge tunnel shows that: ①Due to the limit of boundary conditions, the theoretical value of atomization-precipitation can be only considered as a reference.②To improve the accuracy of design, the actual measurement value of atomization-precipitation in the affected zone should be adopted in the protection design.③It should be suggested to start the protective construction of atomization area downstream the dam after one flood season of test run of the flood discharge structures.
Pubugou Dam flood discharge tunnel atomization influence railway protection
Fu Xingyou Yao Fuhai Chen Gang
Dadu River Hydropower Development Co.Ltd, Chengdu,610041, China
国际会议
昆明
英文
123-133
2013-11-01（万方平台首次上网日期，不代表论文的发表时间）