METHOD FOR TRENCHLESS LAYING OF PIPELINES Russian patent published in 1998 - IPC

FIELD: construction engineering. SUBSTANCE: this relates to trenchless laying of service lines. According to method, tube of increased length is driven into ground. This requires high axial shock loads to be applied by means of striking mechanism with subsequent cleaning of tube from ground contained in it. Axial shock loads are applied in middle part of tube. This improves transmission of force and cuts energy consumption. Substantial increase of length of pipeline driven can be achieved if at force application point, tube is cut into pieces with cleaning them individually, and after cleaning front part of tube and connecting rear part to it, driving is continued to end, with cleaning performed from front end of tube. EFFECT: high efficiency. 6 dwg