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

Table 7

Results of pull-out force test of underwater (mixed) blockage.

Blocked objects	Overall height (m)	Blocked objects’ deadweight (kN)	Pull-out force of blockage (kN)
			Silt : sand : small stone : medium stone = 2 : 1:1 : 1
			Blockage height (0.20 m)	Blockage height (0.30 m)	Blockage height (0.40 m)	Blockage height (0.50 m)
1# steel plate	0.70	0.173	0.181	0.287	0.358	0.419
2# steel plate	0.70	0.115	0.106	0.174	0.227	0.285
3# steel plate	0.70	0.057	0.067	0.096	0.129	0.155
1# steel bar	0.70	0.029	0.046	0.059	0.088	0.121
2# steel bar	0.70	0.019	0.028	0.042	0.062	0.073
3# steel bar	0.70	0.012	0.013	0.021	0.030	0.041