Model Test Research on the Influence of Gate Blocking in Siltation Environment

Table 2

Test parameters of blockages with different gradation ratios.

Gradation ratio	Combination 1	Combination 2	Combination 3	Combination 4	Combination 5
	1 : 1 : 1 : 1	2 : 1 : 1 : 1	1 : 2 : 1 : 1	1 : 1 : 2 : 1	1 : 1 : 1 : 2
Blockage height (m)/overall height (m)	0.4/0.7	0.4/0.7	0.4/0.7	0.4/0.7	0.4/0.7
Time (d)	7	7	7	7	7