| 摘要 |
FIELD: hydraulic engineering. ^ SUBSTANCE: invention relates to pneumo-hydrotrasportation of sand-gravel-pebble materials for creating and repairing beaches on seaside, lake, river and pond banks. Proposed set for creating and restoring beaches includes watercraft, lifting device and system of taking-in, lifting and transporting of sand-gravel-pebble materials. Watercraft is made in form of catamaran. System of taking-in, lifting and transporting of sand-gravel-pebble materials is of airlift type of parallel design with discharge of compressed air in direction of pulp lifting. System contains metal pipes arranged in lower part of airlift column with ripper on end. Ripper is set into action by air line of airlift being, connected by corrugated hoses with quick-release joints to provide bending of airlift system at angle of 90° on surface of water reservoir and depth of ground working up to 100 m. ^ EFFECT: simplified design. ^ 2 dwg |
