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Sediment Scour and Silting Evolution Research at the Area of Le shan Port
in Old Wood Hole Reservoir
Guo Hua，Zhang Xujin，Du Zongwei，Wang Yunli
2012, 31(5):
1031-1035.
DOI: 10.3969/j.issn.1674-0696.2012.05.27
Leshan port is located in the old wood hole reservoir River． There river bed and flow conditions are complex． In
order to ensure the smooth channel，normal use after the port construction，made a movable bed model test based on the
fixed bed model test，to study the reservoir sediment scour and silting evolution and corresponding navigation flow condition．
The test results show that，( 1) Silting of riverbed is rapid in the early stage of reservoir operation，along with the reservoir
operation for years，the depositing speed gradually slow down，to reservoir operation 20 years，reservoir bed has yet to reach
an equilibrium state． ( 2) The main deposition sites are around the beach dredging area on both sides of the old river dam
site to end，the right branch of old river dam and in the vicinity of Chung Adams． ( 3) Through bed sediment，but the reservoir
area channel scale ( navigation depth，boat is wide，the radius of the bend ) is still larger than the channel three standard
and the navigable flow conditions ( flow rate，ratio，flow pattern of flow is 10 000 m3 /s ) satisfy the following requirements
for ship navigation too，after the reservoir operates 20 years．
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