METHOD OF CLEANING DRAINAGE PIPELINE FROM ACCUMULATION OF MUD Russian patent published in 2002 - IPC

FIELD: operation of amelioration systems, particularly, closed horizontal drainage. SUBSTANCE: method includes supply of washing water under pressure to drain issue to move working member, preliminarily introduced on rope, over drainage pipeline under water pressure. Working member is provided with bristling for loosening of caked accumulation. In places of intensive accumulation of mud, determined by reduced speed of probe motion, backward motion of working member is executed with the help of drum on which rope is wound and working member connected to rope end. In case of working member stopping, point of pipeline damage or its filling with ground is detected by length of unwound rope, and measures are taken for restoration of drainage pipeline functioning from ground surface. EFFECT: increased efficiency. 2 dwg