RU2274794C1 - Polymeric-container balancing device for pipeline - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: device comprises load-bearing belt for suspending on the pipeline, pair of tanks provided with faces and interconnected via the belt, lining made of a fabric, and pair of cell cross-pieces. The tanks are made of flexible material and filled with soil after suspending the bearing belt on the pipeline symmetrically with the respect to the belt. The cross-pieces are connected with the outer longitudinal sides that define the frame of the tanks. The bottom of the tanks and load-bearing belt are made of a single fabric whose central part is secured to the lining and load-bearing cross-pieces. The single fabric is arranged above the inner longitudinal sides of rigid flat frames, and the lining underlies the fabric. The longitudinal edges of the lining are bent and secured to the lining to define lugs that receive inner longitudinal sides of the rigid frames. The transverse edges of the lining are secured to the transverse edges of the single fabric.

EFFECT: reduced labor and material consumption.

5 cl, 5 dwg

Description

The invention relates to construction, is used when laying underground trunk pipelines, pipelines floating in a flooded trench, as well as when laying pipelines in swamps.

A weighting material for laying an underground pipeline is known from the prior art, comprising a pair of containers symmetrically hung on the pipeline and filled with soil, each of which is composed of a rigid frame and a semi-cylindrical container made of flexible material suspended from it (SU 769178 A, 1978, F 16 L 1/06). Known weighting agents are used for group ballasting of pipelines, while the weighting agents in the group are fastened to the end cross members of the frames.

A disadvantage of the known solution is the increased consumption of material on the end walls of the containers, since both adjacent walls of the containers perform one function - they are separators for the backfill soil.

An analogue of the claimed invention is a pipeline weighting agent known from patent RU 2164636 C1, 03/27/2001, F 16 L 1/06.

The weighting agent contains a pair of containers composed of a rigid flat frame and a semi-cylindrical frame made of a flexible material of a container suspended from it. The tanks are multisectional along the axis of the pipeline, the sections are separated from the neighboring ones by intermediate transverse walls and frame spacers. The containers of the weighting compound are interconnected by a bond imposed on the pipeline - power belts made of flexible material and fixed by the ends on the external runs of the frames. A disadvantage of the known solution is the increased consumption of backfill soil. When weighting agents are installed in the group (during continuous ballasting of the pipeline) under the influence of the soil backfill, the containers forming the containers are deformed and wedge-shaped gaps arise between the neighboring weighting agents in which the ballasting soil of the backfill wakes up.

Closest to the claimed invention is a weighting pipe, known from document RU 2220351 C1, 12/27/2003.

The known device is a polymer-container ballasting device (PCBU) for the pipeline, contains a power belt designed for hanging on it, connecting a pair of tanks filled with soil symmetrical with respect to the belt and made of flexible material, equipped with end walls, an overlay, a pair of flexible power jumpers connected to the outer corners of the frame of the containers of rigid flat frames, the inner longitudinal sides of the pipeline resting on the PCB when hanging on it, fastened with force bubbled jumpers additional end walls.

The bottom of the containers and the power belt are made of a single panel, which in its middle part is fastened with a cover plate and power jumpers. In the known device, a single panel is located under the inner longitudinal sides of the rigid flat frames, and the overlay is above a single panel and is made multilayer.

The known device is material-intensive, does not ensure the full involvement of the material of a single cloth, lining in the work during operational shifts of the pipeline, has considerable laboriousness when carrying out sewing work due to the need to flash multilayer PCBU elements.

The objective of the invention is to reduce the material consumption and the complexity of manufacturing PKBU, as well as improving the manufacturability of its manufacture.

This problem is solved by the fact that the polymer-container ballasting device (PCBU) for the pipeline, containing a power belt designed for hanging on it, connecting a pair of tanks filled with soil that are symmetrical with respect to the belt and made of flexible material, equipped with end walls, an overlay, a couple of flexible power jumpers connected to the outer corners of the frame of the containers of rigid flat frames, the inner longitudinal sides of which are supported by the pipeline when the PCBU is hung on it, additional end walls with power lintels, the bottom of the containers and the power belt made of a single panel, which in its middle part is fastened with a lining and power lintels, in which a single panel is located above the inner longitudinal sides of the rigid flat frames, and the plate is under a single panel while the longitudinal edges of the lining are bent and fastened with it with the formation of eyes, in which the internal longitudinal sides of the rigid frames are placed, and the transverse edges of the lining are fastened transversely the edges of a single panel.

Power jumpers are made in the form of multilayer tapes, the ends of which are provided with eyes. An additional cover plate, a power belt and external power jumpers are fastened in the middle part imposed on the pipeline. The end walls of the tanks are made of partitions sewn into the bottoms of the tanks and hung on the eyes to the transverse end sides of the flat frames. For better use of backfill soil, external power jumpers are equipped with additional end walls fastened with them with the possibility of introducing them into the containers, while to increase the ballasting capacity of the control panel, the area of each panel forming the additional end walls of the control panel exceeds the corresponding cross-sectional area of the container.

In the particular case of the device, rigid flat frames are made rectangular and collapsible from tubular elements with the possibility of longitudinal connection of the device frames, and the longitudinal sides of the flat frames are equipped with rigid removable inserts with the possibility of their fixation during group ballasting of the pipeline.

When ballasting the pipeline, flat rigid frames are inclined and contact with the lower longitudinal sides of them not higher than the horizontal diameter of the pipeline, while the upper longitudinal sides of the frames are not higher than the upper generatrix of the pipeline, which is ensured by the ratio of the lengths of the power belt and external power jumpers.

A special case of laying a pipeline is the implementation of a trench of increased depth, which is typical for laying a pipeline on rough terrain, as well as for icy soils in the North.

Since under these conditions the trench has an increased depth relative to the recommended SNiP, the parts of the ballasting device protruding above the upper pipeline generatrix do not affect the increase in the volume of earthwork.

In this case, it is advisable to use a polymer-container device with an increased size of containers for ballasting soil, for which the transverse elements of flat rigid frames perform an increased length.

When ballasting, the upper longitudinal elements of the frames are located above the upper generatrix of the pipeline. For more complete use of the volume of the weighting agent, the power jumpers are provided with additional upper end walls, which prevent the precipitation of soil from the weighting agent.

In order to increase the ballasting capacity of the PCBU, the area of each sewn-in panel forming the end walls of the PCBU exceeds the area of the corresponding cross-section of the capacity of the PCBU, which allows the end walls to “bulge out” and, as a result, the volume of ballasting soil filled in the PCBU increases.

The implementation of the lining of the panel, fixing its ends on the inner (lower) longitudinal sides of the flat frames, arranging a single panel and fastening its edges with the edges of the lining and fastening the power jumpers with the mentioned elements in their middle part increases the reliability of the device, ensures a more complete involvement of the structure in the work during operational shifts of the pipeline.

The implementation of the power jumpers in the form of a multilayer tape with eyes fixed on the outer (upper) longitudinal sides of the flat frames, increases the reliability of fixing the device to the pipeline.

The presence of the end walls of the tanks, as well as additional end walls fastened with power jumpers, increases the reliability of ballasting due to a more complete filling of the device volume with soil and eliminates the filling of the filling soil through the ends of the weighting agent.

Tubular elements of the frame of the flat frames provide ease of assembly, especially with group ballasting of the pipe, for which rigid elements are introduced into the cavity of the longitudinal elements of adjacent frames and fix them.

The invention is illustrated in graphic material, in which figure 1 shows a device in plan; figure 2 is a view of figure 1; figure 3 is the same, a special case of the weighting for a trench of increased depth on a rugged terrain; figure 4 is a remote element in figure 2 is a connection lining, a single panel and power jumpers; figure 5 - remote element in figure 3 - the location of the lining and a single panel relative to the inner (lower) longitudinal side of the rigid frame.

On the attached graphic material, the positions indicated:

1 - pipeline;

2 - power belt;

3 - flat rigid frame;

4 - ballasting soil;

5 - PCBU capacity;

6 - a single flexible cloth;

7 - upper longitudinal sides (runs) of flat rigid frames;

8 - power jumpers;

9 - inner (lower) longitudinal sides of flat rigid frames;

10 - overlay;

11 - end walls of the containers of the PCBU;

12 - transverse elements (spacers) of flat rigid frames;

13 - additional end walls;

14 - upper additional end walls;

15 - soil backfilling trenches.

The polymer-container ballasting device for pipelines comprises a power belt 2 superimposed on the pipeline 1 and a pair of flat rigid frames 3 attached to its longitudinal edges relative to the axis of the pipeline.

With the frames are connected 4 containers 5 made of flexible material filled with ballasting soil. The longitudinal edges of the single flexible panels 6 forming the tank 5 are fastened to the longitudinal sides 7 (runs) of the flat rigid frames 3 that are upper relative to the pipeline.

On the upper runs of 7 frames 3, the edges of the panel 6 are fixed, forming the bottom of the tanks 5, as well as the eyes of the power jumpers 8.

The bottom of the tanks 5 and the power belt 2 are made of a single sheet of flexible material 6 imposed on the pipeline extending over the inner longitudinal sides 9 of the flat frames 3, fixed on their outer longitudinal sides 7 with longitudinal edges with eyes. The PCBU is equipped with a lining 10 located under the power belt 2, the longitudinal edges of the lining are bent, form the eyes, in which the inner longitudinal sides 9 of the flat rigid frames 3 are placed.

The power belt 2, the bottom of the tanks 5 and the power jumpers 8 are made of technical fabric.

Power jumpers 8 are made in the form of multilayer belts with eyes at the ends, into which the upper longitudinal elements 7 of the flat frames 3 are inserted.

The power belt 2, the lining plate 10 and the power jumpers 8 are connected in their middle parts imposed on the pipeline 1.

The power belt 2 of the single panel and the lining 10 outside its eyes are fastened, for example, stitched along the transverse edges.

The end wall 11 of the PCBU containers connected to the transverse elements 12 of the flat rigid frames 3 is sewn to the bottom of the containers 5 and is connected to the power jumpers 8, additional end walls 13 are connected which, when ballasting, are inserted inside the containers 5 with fit to the end walls 11.

Tanks 5 are symmetrically hung on the pipeline 1. Runs of flat rigid frames 3, their transverse end elements (spacers) are made of tubular elements. This embodiment of flat rigid frames simplifies their transportation and installation.

Flat rigid frames are power bearing elements of weighting tanks. The stability of the weighting agent on the pipeline is ensured by the size of the power belt imposed on the pipeline, when the flat rigid frames contact their lower runs with the surface of the pipeline below its horizontal diameter.

The ratio of the lengths of the power belt, lining and power jumpers provides placement of the frames, in which their upper longitudinal sides-runs are located at a level not higher than the upper generatrix of the pipeline. Such placement of the weighting agent does not cause an increase in the volume of earthwork.

Weighting tanks are filled with soil sequentially, preferably symmetrically, which prevents the skewing of the tanks. Bending in the plane of flat rigid frames, the load is perceived by spacers.

The volume of soil contained by one PCBU, depending on the diameter of the pipeline, is from 1.0 to 8 cubic meters. m. In the group use of weighting agents for ballasting the pipeline, up to four weighting agents are used in the group, while the number of groups per kilometer of the pipeline is from 40 to 50.

A special case of laying a pipeline is the implementation of a trench of increased depth, which is typical for laying a pipeline on rough terrain, as well as for icy soils in the North.

Since under these conditions the trench has an increased depth relative to the recommended SNiP, the parts of the ballasting device protruding above the upper pipeline generatrix do not affect the increase in the volume of earthwork.

In this case, it is advisable to use a polymer-container device with an increased size of containers for ballasting soil, for which the transverse elements 12 of the flat rigid frames 3 are of increased length.

When ballasting, the upper longitudinal elements 7 of the frame 3 are located above the upper generatrix of the pipeline 1. For a more complete use of the weight of the weighting material, the power jumpers 8 are provided with upper additional end walls 14, which prevent the precipitation of soil from the weighting agent. After filling the control cabinet with ballasting soil, the trench is covered with soil 15.

The invention is technologically advanced in manufacture, due to its low dead weight and simple assembly, it is convenient for transportation and installation on the pipeline, and also effective for various laying and operation of pipelines.

It increases the reliability of the ballasting of the pipeline and eliminates the possibility of damage to its insulation during construction and operation, reduces the material consumption and the complexity of manufacturing PKBU, and also increases the manufacturability of its manufacture.

Claims (6)

1. Polymer-container ballasting device (PCBU) for a pipeline containing a pair of soil filled containers after attaching PCBUs and connected by a power belt of tanks equipped with end walls, a cloth overlay, a pair of flexible power jumpers connected to the outer longitudinal sides of the tank frame rigid flat frames resting on the pipeline with inner longitudinal sides when hanging PCBUs, additional end walls fastened with power jumpers they are symmetrical with respect to the belt, the bottom of the containers and the power belt are made of a single panel, which in its middle part is fastened with a plate and power jumpers, characterized in that the single panel is located above the inner longitudinal sides of the rigid flat frames, and the plate is under a single panel, with this, the longitudinal edges of the lining are bent and fastened with it with the formation of eyes, in which the internal longitudinal sides of the rigid frames are placed, and the transverse edges of the lining are bonded with the transverse edges of a single lotnischa. 2. The device according to claim 1, characterized in that the rigid flat frames are made rectangular and collapsible from tubular elements, their longitudinal sides are equipped with removable rigid inserts with the possibility of longitudinal connection and fixing the frames for group use PCBU. 3. The device according to any one of the preceding paragraphs, characterized in that the ratio of the lengths of the power belt and the external power jumpers provides for the ballasting of the pipeline oblique arrangement of flat rigid frames that contact the pipeline with lower longitudinal sides not higher than the horizontal diameter of the pipeline, while the upper longitudinal sides of the frames located no higher than the upper generatrix of the pipeline. 4. The device according to claim 1 or 2, characterized in that when ballasting the pipeline on a rough terrain in a trench of increased depth due to the ratio of the lengths of the transverse elements of the frames, power belt and power bridges, the longitudinal upper sides of the frames are located above the upper generatrix of the pipeline. 5. The device according to claim 4, characterized in that the power jumpers are equipped with upper additional end walls fastened with them 6. The device according to claim 1, characterized in that in order to increase the ballasting capacity of the PCBU, the area of each sewn panel forming the end walls of the PCBU exceeds the area of the corresponding cross section of the capacity of the PCBU.

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