RU1783217C - Device for weighting trenched pipeline - Google Patents

Abstract

SUMMARY OF THE INVENTION: A slab with a width exceeding the width of the bottom of the trench is placed and connected to it by pulling rods above the pipeline. The pressure plate is located on the anchoring elements and is rigidly connected to them. The slots are made in the plate, through which the rods are passed. T-joints are fixed on the hinge axis of the plate elements. 1 s.p. f-ly, 1 ill.

Description

The invention relates to construction and can be used in laying oil and gas pipelines and other underground pipelines.

The purpose of the invention is to increase the reliability of ballasting by fixing the disclosed anchoring elements of the slab.

The invention is illustrated in the drawing.

The device for ballasting the pipeline into the trench consists of anchoring elements 2 located under the pipeline 1, connected with it by a power pole 3 and rods 4. Anchoring elements 2 are installed on the bottom of the trench dug in the ground 5. The edge of the anchoring elements 2 are horizontally embedded in undisturbed soil 5 walls of the trench. The anchoring elements 2 are covered from above by the pressure plate 6, the body of which is covered by rods 4, rigidly connecting the axes 7 of the hinges of the anchoring elements 2 with the force bearing 3.

After laying and fixing, the plate 6 is covered with ballast soil from the top 8. The plate 6 in its housing may have grooves 9 for passing g 4 and securing the anchoring elements 2 from lateral movement.

The fastening of the pipeline 1 is carried out as follows. At the bottom of the developed trench, hinged anchoring elements 2 are folded at an angle and directed by sharp edges into the corners of the trench, which are then loaded from above with a pressure plate 6, under the influence of the weight of which the edges of the anchoring elements 2 are consumed and embedded in the soil 5. After the introduction of the edges of the anchoring of the elements 2 into the ground 5, the lower planes of the anchoring elements 2 are supported on the bottom of the trench, and the upper ones are in contact with the lower plane of the pressure plate 6. Then, the bodies of the anchoring elements 2 and the plate 6 are rigidly fastened together. In the grooves 9 to the axis 7 of the hinges of the anchoring elements 2

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attach the lower ends of the bar 4, spread their upper free ends to the sides, place the latter on the slopes of the trench, and then fill it with soil 8 to the mark of the bottom of pipeline 1 with simultaneous sealing. Then, pipe 1 is laid on the soil 8, a force of 3 is laid on it, and it is connected with tension to the free ends of bar 4. Cover the top with soil 8.

A device for ballasting a pipeline into a trench operates as follows. In the flooded trench, the buoyant force of water acts on pipeline 1, under the influence of which it tends to move upward. The rods 4 receive a tensile force and transfer it to the bodies of the anchoring elements 2 and plate 6, which in turn balance these forces with their own mass, the mass of soils 8 located above them and forces causing the undisturbed soil to separate 5 of the walls of the trench with the anchoring elements 2 and the total These forces secure the pipeline 1 from floating. The pipeline 1 is protected from immersion by a large area of the anchoring elements 2 supported on the undisturbed soil 5 of the bottom and the walls of the trench. By involving the soil 5 in operation, an increased holding and bearing capacity of the device is achieved. The introduction of the edges of the anchoring elements 2 into the soil 5 of the walls of the trench does not allow the device to move to the sides, and fastening with the plate 6 does not allow folding and self-unloading.

A device for ballasting a pipeline into a trench by fixing anchoring elements in undisturbed sections of soil prisms located beyond the contours of the bottom of the trench allows to increase the reliability of fixing the pipelines.

Claims (2)

1. A device for ballasting a pipeline into a trench, comprising a plate placed under the pipeline and connected to it by rods with a width exceeding the width of the bottom of the trench, and articulated by means of a longitudinal hinge of two anchoring elements with pointed longitudinal edges, characterized in that it is provided with a clamping a plate located on anchoring elements and rigidly connected to them, while grooves are made in the plate through which rods are passed. 2. The device pop 1, characterized in that the rods are fixed on the axis of the hinge of the anchoring elements of the plate, , ss | uh h x | g | 1c, 1c) Sj. , {L  / Jll t f ////// fJbJtQsSftrfS // SsSi r /// /// /// // G // rUV // /// /// S / f