GROUND STRUCTURE ON WEAK BASE Russian patent published in 2019 - IPC E02D17/18 

FIELD: construction.

SUBSTANCE: invention relates to construction and can be used in construction and reconstruction of linear structures on weak, including permafrost, soils of 3rd and 4th categories of thermal blocking, on bottomless sections and swamps of 2nd and 3rd types (railway and motor roads, main pipelines, stanches and dams). Earth structure on weak base contains embankment, loading prisms from variable-section rock surface intended for drainage and reinforcement of near-inflow zones of embankment and located from upland and submountain sides of embankment along its longitudinal axis increasing in direction of moisture flow. Prisms have different masses and a cross-section of the coal shape with peaks separated by the berm width. Large mass prism is located on upland side of embankment, prism with smaller weight is located on foothill side of embankment. Prisms are built on water-proof berms from clay soil of coal form, deposited on both sides of the embankment, on top coated with synthetic nonwoven material, and tops of prisms of each berm from clay soil are located on slopes of embankment.

EFFECT: technical result consists in development of earth structure, stability of which is provided by eliminating sediments of soil base due to a new form of prisms with foothill and upland sides of the embankment, providing reinforcement and continuous unimpeded drainage of moisture from the zone with weak, at waterlogging, by soils in longitudinal and transverse directions, drying of weak soils in foundation of excavation and their hardening, which increases its service life many times.

1 cl, 1 dwg