METHOD AND DEVICE FOR PADDING PIPELINE WITH EARTH FROM DUMP, EQUIPMENT FOR COMPACTING EARTH UNDER PIPELINE Russian patent published in 1999 - IPC

FIELD: construction engineering. SUBSTANCE: relates to methods and facilities for earth works primarily at replacement of protective coating of pipelines which is performed at design level marks of pipeline in trench commonly without stopping of normal functioning of pipeline. Invention can be employed at earth work in construction of new underground pipelines. According to method of padding pipeline with earth taken from dump, transportation facility carrying earth taking, transportation, and earth compacting members is continuously moved over ground route which is formed by earth taking member with earth being borrowed from dump. This ensures reliable orientation of earth compacting members relative to pipeline which bring their action upon earth preliminarily introduced into trench. In pipeline padding device, unit for mounting earth compacting mechanism on transportation facility includes uncoupling mechanism for cyclic movement of earth compacting members in direction of moving transportation facility. Working components of earth compacting members in process of operation are displaced in cyclic manner in direction from top to bottom and towards each other with their simultaneous turning in direction towards reduction of angle between them. Application of aforesaid method and device ensures effective compaction of earth under pipeline with minimal influence of earth upon pipeline surface. EFFECT: higher efficiency. 34 cl, 24 dwg