METHOD FOR SUBSURFACE PIPELINING IN WETLAND AREAS ON TYPE I SWAMPS Russian patent published in 2018 - IPC F16L1/28 

FIELD: construction.

SUBSTANCE: invention relates to the construction, operation and repair of pipelines transporting gas, oil and other products and can be used when laying an underground pipeline in a wetland area on type I swamp. Proposed method involves the development of a narrow trench with a special ground cutting machine in a vertical plane up to 2 m deep, and with plowing devices in a horizontal plane with a width of up to 0.5 m. Then the ballasted pipeline is dragged into the trench by traction means and pipe-laying machines. Ballasting of the pipeline prevents it from ascending. Pipeline is equipped with a plug and a cone-shaped device for opening the trench. When swelling the soil while dragging the pipeline, the soil is loosened by a bulldozer or excavator.

EFFECT: technical result consists in reducing the laboriousness of work during the laying of the pipeline, increasing the reliability of its operation.

1 cl, 3 dwg