EXCAVATING METHOD APPLIED FOR BUILDING COVERED PIPELINE, DEVICE FOR IMPLEMENTATION THE SAME, WARM AND THROWING UNIT Russian patent published in 1996 - IPC

FIELD: building covered pipeline. SUBSTANCE: stacking layer of rich soil removed along the run and extracted from the trench is carried out on one side of the run being laid. Stacking soil is carried out in front of the trench and earlier placed bank of the rich soil. Trench filling and rich soil distributing are performed by the same device that develop those. Device for carrying out the method includes base motor vehicle with installed rotor to excavate the soil from the trench and a warm to remove rich soil. Conveying rich soil into the bank being stacked is performed by the warm. Throwing unit is installed on rotor frame to convey soil. The throwing unit is made in the form of concave plates of changeable curvature. Replaceable looseners with grid-type work surface are installed on both sides on rotor frame to compress the soil. EFFECT: high productivity. 6 cl, 24 dwg