Upper chamber is made with additional hole to which mechanism for forced supply of ground is connected. Installed between mechanism and additional hole is check valve. Batcher is installed between hopper and casing upper part. EFFECT: higher efficiency. 3 dwgMAKSIMOV VALERIJ PBOLOKHONOV ALEKSANDR N...
The side ditch renovation should tie a string carries on.To each kind of drainage lengthwise grade application instrument examination, repairs and maintains to conforms to the design and the standard request.Each kind of drainage side slope, does not have to use the earth to fill at will.The ...
drainage ditch fillingland consolidationlower plain area of North China PlainThe construction of irrigation and water conservancy was initiated on the North China Plain in the 1950 s, which played a significant role in the saline-alkali soil improvement and flood discharge. However, the phenomenon ...
Open landscapes in many parts of Europe have been negatively affected by large-scale drainage and amelioration to support agricultural production. In continental alkali grasslands, amelioration and establishment of drainage ditch systems were typical in the 1950s and 60s. Drainage ditches caused a ...
a water outlet water check valve is arranged on the siphon pipe; an outlet of the siphon pipe is located in the overflow tank; an overflow opening is formed in the wall of the overflow tank; the overflow opening is higher than an outlet of the siphon pipe; and the drainage ditch is ad...
In this way, a gap portion communicating during step stacking functions efficiently as a drainage ditch, the foamed resin block 10 does not float up also, even though the water level drops, the original function as the foamed resin block 10 can be maintained, thereby the foamed resin block ...
Blind ditch drainage capacityNumerical simulationIn order to study the evolution of the hydrological environment in loess excavation and filling project under multi-yearprecipitation infiltration, the hydrological responses of the excavation and filling area in Yan'an New District are simulated,based on ...
the unit of A is m, Qy is the drainage quantity, not directly affected by rainfall, in a basal spring or surface seepage, the unit of Qy is m/s, k is the permeability coefficient of a rock filling body of the rock filling blind ditch, the unit of k is m/s, i is the longitudin...
PURPOSE:To improve the function of the soft ground, in the case where a water and drainage ditch, a road and a building are constructed on the soft ground, by laying a synthetic resin sheet on a synthetic resin foaming member spread on the ground so as to project from the side edge of...
Various drainage solutions have been employed to address the issue of excess moisture in paddy fields. Traditional methods, such as open ditch drainage and excavated subsurface drainage, have been used to alleviate waterlogging, but these solutions come with several drawbacks. Open ditch drainage involv...