The article proposes a special device which enables to improve the preparative processes during the main pipeline break at any technique of general maintenance or trench breaking. The device has been made to fix characteristic points on the surface of the earth. The application will enable to exclude the use of stakes or pegs driven into the ground. The device allows to continuously mark the space without stopping the machine to apply a special mix. The use of the marking on portions of pipeline bends will enable to cut the volume of the ground extracted from the trench and therefore to reduce the length of stripping. The application of the device will allow to improve the preparative processes prior to stripping works. The use of the proposed device will give the opportunity of its application in all the climatic conditions nationwide.

Keywords: Akhmedov A. M.

The article proposes an innovative device to install main pipes sections into strings when building and maintaining the linear pipeline portion. The spacial process flowcharts are given to install main pipeline sections into strings and the general view of the proposed device. The application of the device will enable to reduce the number of the pipe-laying machines and to completely avoid the application of special devices and mechanisms when supporting sections and and adjusting their edges to perform welding and insulation works. The device can be used also for tying in of the 24 and 36 m strings into one branch. One can achieve a considerable simplification of the working operation for adjustment and matching the edges of the two extended pipe sections. The proposed device will improve the equipment for the repair and construction site in general and to enhance the quality of the active works.

Keywords: main pipeline, general maintenance, adjustment of pipe sections, building of the linear portions of main pipelines, repair and construction site.