FIELD: construction; methods of laying of pipelines in frozen grounds, including swollen ones. SUBSTANCE: the offered method includes covering only surface of pad with hydraulic insulating material, partial back-filling of pipeline is made through its diameter, then, heat-insulating screen (for instance, from geotextile material) is laid horizontally. In so doing, heat-insulating screen is placed into waterproof shell (for instance, from polyethylene film), and back-filling is done up to ground surface. Pad on trench bottom is made of any protective filtering material. EFFECT: higher reliability of pipeline operation in frozen layers of ground. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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SU954545A1 |
