PROCEDURE FOR LAYING UNDERGROUND PIPELINE IN ZONES OF HIGHER SEISMICITY

摘要

FIELD: machine building. ^ SUBSTANCE: according to procedure of laying underground pipeline in zones of higher seismicity pipe line is enveloped with flexible element of round cross section at constant pitch of coil. A steel wire cable or cable out of synthetic fibres is used as the flexible element. ^ EFFECT: increased reliability of pipeline operation in zones of higher seismicity due to reduced value of lengthwise forces applied to pipeline at seismic effect on ground in zone of pipeline laying. ^ 3 cl, 2 dwg