METHOD FOR ARRANGEMENT OF DRAINAGE SYSTEM BY HORIZONTAL DIRECTIONAL DRILLING Russian patent published in 2024 - IPC E02B11/00 E02D31/02 E21F16/00 

FIELD: construction.

SUBSTANCE: invention relates to methods of arrangement of a drainage system and can be used in performance of works on drainage of soils in cramped conditions, for example, in urban development. Complex drainage pipe is formed, having an inner perforated pipe wrapped in geotextile and enclosed in a layer of coarse-porous filtering material held by an outer casing of a mesh and fixing rings. Complex drainage pipe is placed in a protective case, inside which it is pulled into a well, produced by the method of horizontal directional drilling. Complex drainage pipe is then attached to the anchor device, and the protective case is removed, providing contact with the drained soils, primarily, the coarse-porous filter material.

EFFECT: increasing the efficiency and extending the service life of the drainage system by eliminating contamination of the filter material during installation in a well obtained by horizontal directional drilling, and increasing the contact area of the drained soils with the filter material.

1 cl, 3 dwg