3results about How to "Reduce runoff velocity" patented technology

This invention provides a structure for flood control, aiming to address the challenges of impact damage, energy dissipation and deceleration, and smooth transition between mountain flood interception ditches and urban drainage systems. The invention mainly includes a cascading water system, a gradually widening section, an energy dissipation pool, a grating, a retaining wall, a slope toe, connecting pipes, ground level, inspection wells, and an energy dissipation sill. Through a three-stage energy dissipation system (cascading water system + energy dissipation pool + energy dissipation sill), the water flow velocity is significantly reduced. The grating intercepts debris and filters wastewater before it is channeled into the urban pipe network. A liquid level sensor triggers an alarm, providing sufficient emergency response time for wastewater treatment plants. This modular structure is suitable for narrow mountain sites, with a short construction period and high practicality.

The invention belongs to the technical field of side slope drainage, and particularly relates to a road shoulder and side slope collaborative drainage system based on concrete precast blocks, which comprises a roadbed, a side slope positioned on the roadbed, a road shoulder positioned at the top of the side slope, and a drainage ditch positioned at the bottom of the side slope, net-shaped frame units and torrent groove units are arranged on the slope surface of the side slope at intervals, and the torrent groove units penetrate through the slope top to the slope bottom; the net-shaped frame unit is fixed on a slope surface through an anchoring part and is connected with the torrent groove unit; the drainage ditch is formed by connecting a plurality of groove units; compared with the prior art, the construction difficulty is reduced through modular components, the construction efficiency is improved, and meanwhile peak regulation and storage and ecological maintenance can be achieved.

The invention discloses a drainage and soil fixation system of a retention wall type sloping field photovoltaic field, and relates to the technical field of photovoltaic field drainage structures, the drainage and soil fixation system comprises a sloping field photovoltaic field, a drainage channel is arranged on the low-terrain side of the sloping field photovoltaic field, and a transverse main retention wall and a longitudinal secondary retention wall are arranged on the surface of the sloping field photovoltaic field; the main water retaining wall and the secondary water retaining wall are in a criss-cross grid shape, an overflowing notch is reserved in the end, close to the main water retaining wall, of the secondary water retaining wall, the main water retaining wall and the secondary water retaining wall are provided with sand blocking walls at the overflowing notch, and the main water retaining wall and the secondary water retaining wall are connected into a whole underground through the sand blocking walls. And a soil fixation grid is arranged on the surface of the slope photovoltaic field area and between the grid-shaped main retention wall and the grid-shaped secondary retention wall. The surface runoff is separated and guided through the retention wall system, and the natural overflowing and underground seepage capacity of a site is fully utilized, so that the effects of reducing water and soil loss of the site and reducing the cost of a drainage system are achieved.