River regulation measures?

(1) Protection and Utilization of Tidal Flat Land

The beach is a unique product of mountain streams and rivers. Generally, the floodplain of the river is relatively open, and the floodplain overflows in flood season, which is beneficial to flood discharge and detention. Its functions should be preserved and fully developed. While maintaining the flood discharge function of the floodplain, the river course flowing through the urban area uses the floodplain to set up green spaces, parks, traffic auxiliary roads and sports venues, giving full play to its leisure and hydrophilic function, and becoming a good place for citizens to entertain, keep fit and play. In the regulation, we should conform to the river regime, keep the floodplain and bend, restore the natural shape of the river, reduce the river bed gradient, reduce the flood level and pressure, and reduce the height of the flood dike. In addition, the curved water flow is more conducive to biodiversity and creates a suitable living environment for all kinds of cattle.

（2）

Rivers with mountain streams are generally wide, and the cross-section design of rivers can adopt the form of compound cross-section. In dry season, the flow is small, and the water flows to the main channel of the channel; During the flood period, the flow is large, allowing the flood to flood the beach, the cross section is large, and the flood level is low, so it is generally unnecessary to build tall levees. In the dry season, the functions of the floodplain should be fully developed according to the width, topography and landform of the floodplain and local conditions: if the floodplain is wide, large-scale or comprehensive sports fields such as golf courses and football fields can generally be developed; Small outdoor activities, riverside parks or auxiliary roads can be built on the relatively narrow river beach. The rational development and utilization of the floodplain can not only give full play to the function of the floodplain, but also will not raise the flood level and increase the flood control pressure on both sides of the strait.

(3) Design of short and fat dam for scour prevention and flood prevention.

Shanxi river has the characteristics of steep riverbed slope and strong sudden flood, short high water level time, concentrated flow and high velocity, which seriously scours dams and farmland along the river. Through planning, the downstream dike section of the reserve will be opened, and the river will make room for flood, allowing low-frequency flood to overflow the dam, and ensuring that the dam will not collapse and farmland will not be destroyed. In rural rivers with flood control as the main function, dike foundation is seriously eroded, so loose pile foundation can be used. Loose pile foundation has the advantages of low investment, good integrity and strong erosion resistance, so as to improve the integrity and stability of dike.

(4) Biological embankment reinforcement is adopted to reduce embankment hardening.

For the rural rivers in the site, except for some banks which are seriously eroded, dikes should be built for slope protection, so as to keep the original natural features as far as possible, such as the natural forms of the floodplain, Jiang Xinzhou and coastline, and the floodplain on both sides of the river, and to keep the original wetland ecological environment, so as to reduce the damage of the project to the natural features and ecological environment. In dike construction, large pebbles and dry stones can be used for revetment to make the river bank tend to natural shape. The inner side of individual dikes can be protected by planting straight-rooted tree species such as Metasequoia glyptostroboides or lawn slope protection.

For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd