METHOD OF GROUND STRUCTURE WASHING OVER Russian patent published in 1995 - IPC

FIELD: construction. SUBSTANCE: ground structure washing over method provides for sand-pit working by hydraulic dredger 1, feeding of sand-water mixture by floating sand-water mixture pipeline 2 and ground sand-water mixture pipeline 3 to hydraulic mixture thickener 6 with following feeding of thickened water-sand mixture from washing in branch pipe in zone of sand washing over and ground structure compaction. Movable working sand-water mixture pipeline 4 is laid between ground sand-water mixture pipeline 3 and thickener 6. Sections of pipeline 4 are connected by round-swinging hinges. Besides, thickener 6 is mounted on self-propelled carriage 5. In the case, branch pipe to feed sand-water thickened mixture is made so as to be capable to turn and compaction of washed over sand is exercised continuously in process of self-propellant carriage 5 movement along front site of washing over simultaneously with dredger sand working in sand-pit 8. Water is removed from thickener 6 through auxiliary branch pipe into sand-pit. EFFECT: method of ground structure washing over is used in roadway and hydrotechnical facilities construction. 1 dwg