METHOD AND DEVICE FOR TRENCHLESS LAYING OF PIPELINES Russian patent published in 2018 - IPC F16L1/28 

FIELD: mining.

SUBSTANCE: drill head has a connecting element for a drill string guide having a pump for sucking and discharging drill cuttings separated by the drilling head and a connecting element behind the drilling head, in which there is at least one suction element for receiving and unloading separated rock, and having a connecting portion which has a connecting element for the pipeline, and the method for drilling and trenchless laying of pipeline, in which along a given drilling line there is guide well bore from the initial point to the target point. Guide well bore is formed by advancing the drill head guide with the drill string guide, in which after reaching the target point, a drilling-laying head is connected to the end of the guide drill string connected to the pipeline and by which the well bore is expanded, and simultaneously by extracting the drill string guide from the well bore on one side and/or by introducing the pipeline into the well bore. The drill cuttings separated by the drilling head are hydraulically caught behind the drilling head of the drilling-laying device and unloaded from the drilling well by a pump.

EFFECT: performing trenchless laying of pipelines.

25 cl, 2 dwg