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 P...
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 ...
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...