| 摘要 |
FIELD: hydraulic engineering.SUBSTANCE: invention relates to hydrotechnical and water engineering, in particular, to methods of cleaning of small rivers, ponds, channels and other water bodies from bottom alluviums. Method comprizes a device in channel zone of diversion dykes 5, formation of sections of alluvium dumps 4, arrangement of water-discharge channel 12, recovery of bottom deposits by dredger 2, reclamation of sediments by pulp line 3 into sections of alluvium dumps 4, discharge of excess water and reclamation leveling of dump surface. Additionally, before beginning of reclamation of alluviums, water catch channel 10 and open tank 11 are constructed, as well as for each section of dumps of alluviums 4 diversion dykes 5 of the whole height of only from three sides are arranged. In the base of section of dumps of alluviums 4 drain horizontal lengthwise elements 8 are arranged as well as adjacent drain horizontal crosswise elements 7. Then, having low height water drain diversion dyke 6, adjacent to the collecting channel 10 is constructed. After that, reclamation of alluviums in section 4, is performed, while excess water from section 4 is discharged by gravity through a water drain diversion dyke 6 in water intake channel 10, further, into open tank 11, where it lightened due to loss of alluviums in residue. Then, clarified water by gravity via water collecting channel 12 is discharged into water body 1. After completion of reclamation of alluviums and filling section of dumps of alluviums 4 in body of reclaimed alluviums drainage vertical elements 9 are installed till their coupling with drain horizontal elements 7 or 8. Dewatering of body of water-saturated alluviums is performed by gravity via drain vertical element 9 and drain horizontal elements 7 and 8 in water intake channel 10.EFFECT: method allows to perform cleaning of water bodies from alluviums and dewater body of alluviums in a relatively short time, hence, to increase technological effectiveness of operations, reduce terms of their execution, as well as to increase efficiency of using of construction equipment and its efficiency.5 cl, 3 dwg |
