Floods usually strike abruptly, and time is critical to safety. The opening and closing of conventional sluice gates rely on heavy machinery such as motors and screw rods, and a complete flood discharge process generally takes more than 30 minutes. Equipped with an intelligent inflation and deflation system, the Shield Rubber Dam can release pressure from the airbag within several minutes. The shield plate then lowers to the riverbed, opening a full-section flood passage.
In Xiadang Township, Shouning County, Shouning County, Fujian Province, the local Shield Rubber Dam only takes 10 minutes to collapse for flood discharge when the water level rises due to typhoons. Three Shield Rubber Dams in the Xinqiao River Basin, Yidu City, Hubei Province, achieve flood discharge response times of merely 20 to 40 minutes during the plum rain season. Faster response creates greater initiative for flood prevention.
Floods often carry large quantities of floating debris, sediment and even rolling stones, which pose severe challenges to dam structures. The Shield Rubber Dam adopts a composite structure consisting of steel shield plates and rubber airbags. The upstream steel plates resist impacts from debris, while the airbags provide flexible buffering.
The inclined overall design of shield plates leaves no gate gaps, allowing debris to flow through directly without jamming. During practical operation in Yidu, the Shield Rubber Dams maintained stable performance even when floods transported massive floating matter and sediment, with no silting or blockage occurring. Such characteristics make them particularly suitable for complex environments including mountain streams.
The intelligent monitoring system of Shield Rubber Dams enables real-time water level adjustment and precise lifting or lowering of the dam body in response to changing hydrological conditions. Of greater importance is its safety redundancy design: in extreme scenarios such as power outages or control system failures, the dam can still be collapsed manually to guarantee unobstructed flood flow.
The dual safeguard mode of "automatic intelligent control + manual operation" provides stronger support for flood control in flood-prone regions.
Once collapsed, the shield plates of the Shield Rubber Dam lie fully flat on the riverbed with negligible water resistance, delivering far greater flow capacity than conventional gates. Verified by practical projects, its flood discharge efficiency can be several times higher than traditional facilities. It accelerates the reduction of river water levels, effectively narrowing the upstream inundation scope, shortening soaking duration and alleviating flood pressure along river banks.
From Yidu and Shouning to Zhuozhou and Xianyang, Shield Rubber Dams have passed rigorous tests in flood control practices across numerous regions. Featuring rapid response, outstanding impact resistance, multi-layer safety protection and efficient flood discharge, they offer a practical and dependable hydraulic solution for flood-prone areas.
