| 摘要 |
FIELD: construction.SUBSTANCE: water intake facility from surface sources consists of receiving chamber 1 with a pump station arranged in it. Receiving chamber 1 is made in the form of a reservoir located near a surface source, for example a river. Bottom 2 of the reservoir is located below lower level of the surface source. Walls 3 and bottom 2 of the reservoir are covered with crushed stone 4. Crushed stone 4 is placed between wall 3 and concrete blocks 5. As concrete blocks 5 it is expedient to use U-shaped blocks with ribs, which are laid in the crushed stone body with formation of steps, through which a water passage directed upwards through crushed stone is provided to receiving chamber 1. An upward water flow from the steps excludes movement of crushed stone under action of the water flow to the receiving chamber. For protection against washing out and as the first coarse step of the filter of the surface water source along the bank, opposite the receiving chamber there is protective layer 7, for example of concrete blocks, boulder stones.EFFECT: improving purity of taken water.4 cl, 1 dwg |
