Patent UA-94374-C2 (UA)
Title: Technology for implementation of earth-moving works at capital repair of linear portion of main pipelines and complex of technological equipment for its realization
Inventor: DMYTRYCHENKO MYKOLA FEDOROVYCH
IPC: B60W30/16
Filed: 2010-08-27
Abstract: A technology of implementation of earth-moving works at capital repair of linear portion of main pipelines is in that one adjusts position of pipeline with marking its axis and depth of laying of pipe from day surface of earth to its upper generatrix. With machine for layer-by layer excavation (1) one takes off fertile layer of soil with its displacement to dump (10) at side from pipeline (7). With the same machine (1) at second pass one takes off a layer of mineral ground to depth needed for stable and reliable operation of flowing technological machines with its displacement to dump (11) to the other side of pipeline (7). By means of technological column of machines (2, 3, 6) that operate simultaneously and synchronously one with another and with repair machines (4, 5) one excavates at side of the pipe two trenches with dimensions that depend of pipeline diameter and depth of its laying, with displacement of soil excavated to the previous dump (11) of mineral ground, with excavation under pipeline to depth lower its lower generatrix enough for operation of repair machines (4, 5). After implementation of needed repair works one pours earth under pipeline to both sides from it with compacting it. With the other machines that are not included to the technological column one finally backfills repaired section of pipeline and performs technical reclamation of fertile layer of soil. New is the fact that one periodically measures distances between two or more machines that operate in technological column, with technical mean one compares real distances between machines to maximum allowed values of those distances and by results of comparison one forms control signals for keeping or change of velocity of motion of one or several machines of technological column with realization of those control signals. A complex of technological equipment for implementation of earth-mowing operations at capital repair of linear portion of main pipelines includes machine for layer-by-layer excavation (1) and machines adapted for operation in technological column simultaneously and synchronously one with another and with repair machines: machine for pipeline opening (2), rotary digging machine (3) and machine for tamping the ground under pipeline (6). Machines of technological column are equipped with control systems that include on-board computers (19). New is the fact that the complex is equipped with system of coordinated control of machines of the complex that includes central computer (18), means (15, 16) for transfer of data between the central computer and the on-board computers of machines and system (17) for control of distances that is used for periodical measurement of distance between two and more machines operating in technological column. The central computer (18) is programmed for comparison of real distances between machines to maximum allowed values of those distances and for formation according to results of comparison in real time mode of control signals for keeping or change of velocity of motion of one or several machines of technological column, and on-board computers (118) are programmed for realization of those control signals. The invention makes it possible to eliminate factors effect of which can cause instantaneous or gradual negative change of stressed-deformed state of pipe.