METHOD OF CONSTRUCTION OF TRENCHES FOR ENGINEERING NETWORKS Russian patent published in 2024 - IPC E02D17/06 

FIELD: construction.

SUBSTANCE: method of laying engineering networks, which includes stages at which a frame-template is assembled, consisting of two distribution beams, with installation of two spacers between them. Distribution beams are arranged at equidistant distance from the axis of the utilities to be laid and parallel to this axis to form a distribution belt. Template with guides for drilling holes for a tongue is installed on the distributing beam. Holes are drilled, pipes are installed in holes and tongue with angles made in the form of stairs is lowered to design depth by means of vibratory pile driver. Template frame is dismantled and moved to the next section. Trench is being developed, and at the first stage of development, horizontal sheeting shields of trench top tier are installed in the corners of the tongue, and in the tongues attachment assemblies—chairs for the distributing beam and the distributing beam, as well as the first brace. At the second stage of trench development, the second brace is installed, and when the design depth is reached, installing the next tier trench horizontal sheeting shields and laying the pipelines of engineering networks, after which the trench is backfilled with sand with layer-by-layer compaction to depth of 1 m from the trench bottom, with dismantling of the lower tier of the horizontal sheeting shields. Further, backfilling of the trench to the level of backfilling of the upper tier of the horizontal sheeting shields by 1 m, with the subsequent dismantling of the struts, distribution beams, chairs and the upper tier of the horizontal sheeting shields, thereafter, the trench is finally filled and the tongues are removed with the help of a vibratory pile driver.

EFFECT: increasing the speed of laying engineering networks with the possibility of parallel performance of the full complex of works during the whole construction, reducing additional accompanying operations.

4 cl