Falling Water Dam
Type: Approaches
Creation: 2009-01-28 00:00 Updated: 2017-07-19 15:53
Compilers: Yan ZHANG
Reviewers: Laura Ebneter
Country/ region/ locations where the Approach has been applied
- Country: China
- Region/ State/ Province: Shanxi, Shaanxi, etc.
- Map: View Map
Description of the SLM Approach
Short description of the Approach
The falling water dams are widely built in the middle reach of the Yellow River, the typical dams are filled with dense slurry by water flow from upland. The approach is implemented mainly by government investment.
Detailed description of the Approach
Falling water filled dams distribute widely in the middle reaches of the Yellow River. They are used to store water, wrap sediment which results from soil and water loss. On the Loess Plateau, in addition to the conditions of deep gully and steep slope, earth above the top of the dams can be used to build dams. First, soil is loosed with squirt guns, explosion or manually digging. Then, water is pumped up to the loose earth so as to rush the soil down along transporting ditch, turning the soil into dense mud, to dams level surrounded by tamped banks. Under the press of gravity, the mud dehydrates, consolidates and becomes uniformly dense body of the dams. Compared with dams in other areas, the water power filled dams in the Yellow River basin are characterized by much denser mud, uniform particles and body texture, smaller transect of dams body, and wide applicability to soil materials such as sand soil, loess soil and weathering residue. The types of dams have widely applied to build middle and small reservoirs and silt arresters in the middle reaches of the Yellow River, playing an important role in agricultural production and reduction of sediment into the Yellow River.
Photos of the Approach
