| 摘要 |
FIELD: mining. ^ SUBSTANCE: method involves routing of water-diversion furrows from local topographic lows, their conjugation to open furrows of narrow enclosure ploughing and water-receiving furrow, the water discharge from which is performed to open channel. First, there built is near-batter drainage including the routing of deep unloading drain parallel to open channel at the distance of 2Ç4 m from its edge; at that, deep pressure-relief drain is provided with diverting part with an inclination towards the channel, further addition of fertile soil layer to pressure-relief drain and filling of drain ditch with deep pressure-relief drain arranged in it with extracted soil mixed with fertile soil layer. Water-intake furrow is arranged in one vertical plane with deep pressure-relief drain; at that, water from local descents along the route of water-intake furrow is drained by means of vertical drain rigidly attached to deep pressure-relief drain and having surface water collector in the form of T-shaped head piece arranged in subsoil horizon at the depth from the ploughing shoe of not less than 0.7 m and arranged in filter filling. ^ EFFECT: increasing stability of sides of drain channels, speeding up the drain of surface water from the drained surface area, decreasing the fouling of water intake. ^ 5 cl, 3 dwg |
