Study on channel development potential of Luzhou-Chongqing reach of Yangtze River

The reaches from Luzhou to Chongqing are the mountainous rivers with the alluvial characteristics.Starting with the river channel morphological relationship of excellent reaches in Yangtze River for the first time,and using the comparative method for grade flow and estimation method for navigation depth,the channel development potential from Luzhou-Chongqing reach in the natural circumstances is studied,and the river channel morphological relationship of excellent reaches from Luzhou to Chongqing is obtained.The result shows that the reach has the potential to be improved and developed to the grade I channel,and the dimension standards of grade I channel construction are proposed,which can provide references for planning and channel construction.