METALLIC ASSEMBLED DISMOUNTABLE PIPELINE BUILDING METHOD Russian patent published in 2007 - IPC F16L1/24 

FIELD: building of pipeline transport, possibly erection of ground main pipelines.

SUBSTANCE: method comprises steps of cleaning technological corridor and transporting tubes to bases; delivering tubes to zones of pipeline tract; laying tubes at overlapping their end portions: flared part - cylindrical end of joined tubes while providing distance no more than 6 m between flared parts of joined tubes; testing state of abutted tube ends; preparing them for mounting; assembling tubes by lifting end portions and introducing into flared part cylindrical end of joined tube. Assembling process is realized in separate zones while placing portions of pipeline on ground onto wooden backings and testing fluid-tightness and strength of flared part joints. Separate portions of pipeline are joined. Module type erection of pipeline is provided at ground arrangement of units and members of locking devices due to using mobile pumping system, members of fitting equipment and locking devices whose length is multiple to 0.45 m.

EFFECT: reduced expenses of pipeline erection, high rate of mounting works.