The weighting of the pipeline upt slab and combined connective zone for weighting

 

The invention relates to the construction and used for the construction and operation of pipelines in flooded areas and swamps, in cases where it is necessary to reduce the positive buoyancy extended cylindrical apply the Weighting agent comprises a pair of symmetrical relative to the pipeline flat panels and provided with a transverse pipe walls - aprons. Each panel below the center of gravity of the packing elements pivotally attached overlayed on the pipeline of the upper and lower soft belt - force elements combined connective zone. Each panel is provided with a supporting plate made of synthetic non-woven material (NCM), located on the flat towards the pipeline and interacting with him below the horizontal axial plane of the surface. The lower zone are X-shape relative to the longitudinal axis of the pipeline with an estimated angle between them and fastened at its middle part with respect pipeline lining of technical fabrics. In plates with holes in which are placed the ends of the combined connective belt, forming with packing elements articulated kremlinology of the MNC. Improves the reliability of the pipeline. 2 S. and 4 C.p. f-crystals, 2 Il.

The invention relates to the construction of pipelines in the swamps and flooded terrain.

The prior art known to the construction of the pipeline, when improving the reliability of the pipeline ballasting is carried out by prigruzki pipeline anchor plates, preventing its emersion and immersion. To do this, in the trench in the side walls above the bottom of the trench digging the pits and put on their bottom close to the pipe anchor plate, mounting loops which connect with the ends of the flexible jumper imposed on the pipeline. The pits digging depth, providing a contact mounted on the bottom of the pits anchor plates with the pipeline, the upper surface of the plates is placed in the horizontal center plane of the pipe. When laying the pipeline in soils subject to erosion groundwater and flood waters, such as silt soils, prior to backfilling of the trench within the contour of the anchor plates produce backfill with gravel, and then the trench is filled with soil backfill (see, for example, SU 1314177, 30.05.1987, F 16 L 1/06). Known solution requires an increase in earthworks, contact with the ends of the anchor plates and the contact force of the belts with the pipeline during its longitudinal movements and can only be used when laying pipeline in non-irrigated dry trench.

The prior art known technical solution, when the increase ballasting capability of the pipeline is carried out by engaging in ballast soil, dug out siritelny, evenly spaced pockets under the ballast plate. The weighting of the pipeline contains disposable on the sides of the pipeline ballast plate and a flexible connection for the intended coverage of the pipeline. Weighting is equipped with at least two reinforced concrete beams with eyelets under a flexible connection. The length of the bars is such that the ballast plates are placed in the pockets of the trench.

Plate mounted on the free ends of the bars by means of the fastening elements. The weighting is as follows. When flooding of the trench acting up on the pipeline Archimedean force opposes the perceived them through a flexible connection weight plates, strips, ground in the dimensions of the trench and the soil in the volume of the pockets (see SU 1418535, 23.08.1988, F 16 L 1/06). This decision has the disadvantages previously mentioned decision.

A known weight of the pipeline, which solved the problem - the expansion of the scope by controlling the amount of heat input ballasting efforts by changing the spatial replenished in the form of flat panels, on in place of touch with alastruey pipeline fixed strip of soft cushioning material, and a flexible jumper is made of adjustable length. Weighting hang on laid in a trench the pipeline so that the flat panels are arranged symmetrically on both sides of the pipeline, and weighting the impact of the mass is poured into the cavity of the weight of the ballast is transferred to the pipeline through a connecting panel, flexible jumpers, covering the pipe from above. Ballasting the impact on the pipeline along with the weight of the weighting agent has a weight of ballast in the volume between the planes of the panels and the surface of the pipeline on one side and the ground surface above the trench on the other. The control value generated linear ballasting effort is achieved by changing the angle between the panels by simultaneous corresponding change in the length of the flexible jumper and turn each panel in its own plane by 90, resulting in a large along the length axis of the panel may be located along the pipeline axis or directed upwards. One of the advantages of the design of the weighting agent is the ability to control the shown solution is the closest to the claimed invention and taken as a prototype.

A disadvantage of the known solutions is the complexity of manufacturing flexible jumper adjustable length, the possibility of damage to the flexible jumper and piping insulation under them when operational longitudinal movement of the pipe.

Analysis of known mass leads to the assumption that the reason for causing longitudinal displacement imposed on the pipeline connecting zone, is a transverse location on the pipeline and significant frictional forces between the belt and the outer surface of the pipeline, as well as large specific pressure zones on the insulation of the pipeline.

Thus, there is the task of creating a weighting of the pipeline, which allows the use of existing technologies in its manufacturing concrete blocks and mastered the technology installation mass on the pipeline during ballasting. At the same time during operation of the weighting should eliminate the possibility of damaging the insulation of the pipeline during its long operational movements, and the possibility of damage of the power belt is a flexible elements connecting concrete blocks.

This problem is solved in the claimed invention, however, txtcodeid ballast weights in the form of flat panels with beveled side of the pipe end faces and pivotally connected to these panels flexible jumpers, providing a fixed spatial position ballast weights while hanging by freight loops weighting on the pipeline. Superimposed on the pipeline flexible jumper is made in the form of a combined connecting belt, flat panels ballast weights are through narrowed to the bottom of the trench conical holes in which are placed the ends of the combined belt, forming together with the packing elements of the hinge attachment points. Each ballast weight interacts with the pipeline below the horizontal axial plane and directed to the pipeline flat wall provided with anchor plates attached along the perimeter of the flat panel ballast cargo in the area of its interaction with the pipeline.

Each ballast weights - flat panel has a rectangular shape, and the hinge connection of the ballast elements with flexible jumpers are designed to provide this connection in two positions panel deployed one relative to another 90and with the possibility of providing the camber flat panels 90 or 120.

In each of the flat panels biconically holes, in which are placed the ends of the combined belt, forming together with the packing elements of the hinge attachment points.

Freight loops and embedded host elements of the hinge joining the ballast cargo all combined belt made of corrosion-resistant metal and rely on the metal fitting plate, preventing the spalling of the concrete panels.

The weighting provided with a Mat of non-woven synthetic material (NCM), placed on the pipe under the pickguard combined connective belt, this Mat protects insulation from exposure based on the pipeline surface of each of the ballast cargo ballast, cross pipe size does not exceed the circumference of the outer surface of the pipeline, and the longitudinal size is not less than the corresponding length of the flat panel.

Combined connective zone for weighting the FAC contains two imposed on the pipeline and connecting the ballast weights, respectively, a flexible bottom jumper and a pair of flexible upper jumper. To reduce the effects of longitudinal movement of the pipeline on the durability of flexible jumpers bottom of nicholad plate, and the top are transverse to the pipeline, connected to the ends of the ballast of cargo, and the mid - plate, and aprons attached to the upper zones, overlay and lower zones with the formation transverse to the pipeline walls, and a flexible jumper made in the form of soft zones, each of which is made of a multilayer preform technical fabrics in the form of a ring with overlaid weld and with the formation of cargo loops and plate and aprons made of soft material belts or similar physical-mechanical properties of technical fabrics.

To eliminate “leakage” of soil backfill, especially in the flooded trench, combined connective belt provided with aprons - lateral pipeline jumpers from technical fabrics. Aprons are fastened together with the upper cross belts, trim and bottom belts.

The implementation of ballast weights in the form of a flat rectangular panels with beveled side of the pipe end faces allows you to use the existing technology of production of concrete blocks. This beveled outward from the pipe end faces provide free removing panels from forms, increase ballasting sposobnost, since ballasting effect on the pipeline along with the weight of the weighting agent has a weight of ballast in the volume between the planes of the panels and the surface of the pipeline on one side and the ground surface above the trench on the other.

Performing in each of the flat panels ballast weights through four equidistant from the edges of the flat panels of holes for placement of the attachment points of the combined belt provides the location of the panels in two positions, deployed one relative to another 90.

Management of magnitude linear acting on the pipeline ballasting effort is achieved by changing the camber angle between the panels, 90 or 120by the corresponding change of the combined coupling belt belt lengths, as well as the reversal of the panel in its own plane by 90, resulting in a large along the length axis of the panel may be located along the pipeline axis or directed upwards. The last example is typical of tranches increased depth and when required significant linear load on the pipe to his immersion in a flooded trench.tenku pipeline in the area of contact of the panel with its surface.

The support pads of synthetic non-woven material (NCM), located on the lower flat, directed to the pipeline and interacting with him below the horizontal axial plane of the wall panels weighting protect the insulation of the pipeline from damage, reduce the friction force in the longitudinal operational movements of the pipeline. Anchor plates attached along the perimeter of each facing the pipeline side of the flat panel ballast cargo in the area of its interaction with the pipeline.

To simplify the connection of the ends of the combined connective belt with ballasting of cargo in the most recently executed through holes. To prevent damage to the flexible jumper combined connective belt through hole is made conical, tapering towards the bottom of the trench.

This placement of the support plates on a flat panel, as well as performing in her four tapered holes eliminates the need for preliminary orientation flat panels when they are hanging on the pipeline, then there is eliminated the need for handling flat plate 180during installation in the trench.

Accommodation under the connecting plate cepecially reduction of the pressure on her from the ballast weights. In addition, the execution of the Mat of their MNC reduces friction forces during longitudinal movement of the pipe and ensures the safety of its isolation.

The length of the Mat provides the overhang its ends on both sides below the horizontal diameter of the pipeline, and each edge of the Mat is located under the lower edge is installed on the pipeline ballasting of cargo than eliminates damage to the insulation at the edge pressures ballast weights. Moreover, the transverse pipe size rug - length does not exceed the circumference of the outer surface of the pipeline, and the longitudinal size of the Mat is not less than the corresponding length flat-panel weighting.

The presence of combined connective belt pads from technical fabrics, based on laid on the pipe Mat, evenly distributes on the big pipe surface contact pressure from ballasting of cargo. In addition, permit longitudinal relative movement of the belt upon axial movement of the pipeline that provides durability as combined connective waist, and piping insulation.

X-shaped arrangement of soft zones, elements of power, combined with the ballast weights, which facilitates relative movement when operating the axial movement of the pipe, eliminates the possibility of formation of assemblies and creases on the cover in the longitudinal operating movement of the pipeline. Performing covers of technical fabric provides specified required when the tensile elongation and tensile strength.

The invention is illustrated by drawings, where Fig.1 shows the weighting agent that is installed on the pipe, the cross section of Fig.2 is a combined belt, top view.

The weighting of the pipeline UPT slab contains a pair of symmetrically located with respect to the pipeline 1 ballast weights 2, in the form of flat panels, and pivotally connected to these panels flexible jumper, respectively, the lower 3 and upper 4, providing a fixed spatial position ballast weights while hanging weight on the pipeline. Superimposed on the flexible tubing 1 jumper 3, 4 are made in the form of a combined connecting zone 5 (see Fig.2).

In the flat panel ballast weights 2 performed end-to-end tapering towards the bottom 6 of the trench conical holes 7, which are placed in the ends of the combined seeding connecting belt. Each ballast weight 2 communicates with the pipe 1 below the horizontal axial plane and directed to the pipeline flat wall provided with supporting plates 9 attached on the perimeter of the flat panel ballast cargo in the area of its interaction with the pipeline.

Each ballast weight (flat panel) 2 represents the body of the high center of gravity relative to the attachment thereto of the combined connective belt and has a rectangular shape with beveled side of the pipe end faces 10. Swivel ballast weights 2 combined with the connecting belt 5 is arranged to provide this connection in two positions flat panel deployed one relative to another 90, resulting in a large along the length axis of the panel may be located along the axis of the pipeline 1 or upwards, and also with the possibility of changing the camber flat panels, 90 or 120.

In each of the flat panels ballast weights 2 is equidistant from the edges of the flat panels four end-to-end tapering to the bottom of the trench conical holes, in which time ancov combined connective zone. Freight loops and embedded host elements of the hinge joining the ballast cargo all soft zones combined connective belt made of corrosion-resistant metal and rely on embedded metal plate that prevents spalling of concrete flat panels under operational loads.

The weighting provided with a pad 11 made of MNC and placed on the pipe 1 under cover 12 combined connective belt 5. The length of the Mat 11 - dimension, transverse to the pipeline, protects insulation from exposure based on the pipeline pads 12 and in contact with the pipe 1 the surface of each of the ballast weights 2 weighting and does not exceed the circumference of the outer surface of the pipeline. The longitudinal size of the Mat 11 is not less than the longitudinal length of the flat panel.

Combined the connecting zone 5 contains two pairs of connecting the ballast weights flexible jumpers 3 and 4, which are made in the form of soft zones, each zone is made of a multilayer preform technical fabrics in the form of a ring with overlaid weld and with the formation of cargo loops 13. To reduce the effects of longitudinal movement of trubsee and fastened at its middle part with respect pipeline plate 12, made of soft material belts or similar technical fabric with predetermined elongation and tensile strength. The upper belt 4 ends connected with flat panels, and the mid - plate 12. To eliminate “leakage” of soil backfill 14, especially in the flooded trench, combined connective belt provided with aprons 15 - lateral pipeline jumpers from technical fabrics. Aprons are fastened together with the upper transverse zones 4, the cover plate 12 and the lower belts 3.

The design combined the connecting belt allows for flexible jumpers of different materials that meet operational requirements, which reduces the intensity of weighting, labor for installation and eliminates the need for additional protection from corrosion and damage to the insulation coating of the pipeline, increases durability and piping in General.

Both pre-shipment 2 weighting lift crane with beam in a position convenient for fixing soft zones, which use the cargo loops (not shown). Then the cargo loops 13 soft zones connected with packing elements 8. Mount the ballast on Trebisov and length soft zone provides disclosure of goods and freedom of installation of the pipeline, followed by the self-centering of the weights on the pipeline.

Management of magnitude linear acting on the pipeline ballasting effort is achieved by changing the camber angle between the panels by the corresponding change of the combined connective belt lengths, as well as the reversal of the panel in its own plane by 90, resulting in a large along the length axis of the panel may be located along the pipeline axis or directed upwards. The last example is typical of tranches increased depth and when required significant linear load on the pipe to his immersion in a flooded trench.

One of the advantages of the design of the weighting agent is the ability to control the pressure on the wall of the pipeline in the area of contact of the panel with its surface.

Depending on the specific conditions on the part of the track it is possible to install weighting on the pipeline with different camber angle between the flat plates, which is achieved through the combined use of the connecting belts of different lengths. During the construction of the pipeline in a flooded trench preferably using combined connective zones with length for the camber angle 90. In this case, if necessary, should be open in the side walls of the trench pits for placement of flat plates weighting. Such an arrangement of flat plates weighting ensures increased involvement in the work of the soil backfilling the trench, because the design of the weighting with the same camber angle flat plates acquires the nature of the anchoring device with two blades size equal to the size of the flat plates.

At the same time increasing the camber of flat plates weighting more than 120undesirable because of the stretching of soft zones 10-15% due to the physico-mechanical properties of their material will support the flat plates on the bottom of the trench and weight ballasting device will be perceived not the pipeline, and the bottom of the trench.

Working weighting as follows. The weight of the two goods it creates a vertical force Prigogine pipeline. Simultaneously, the same weight due to the deployed position of the ballast weights and high position of their centers of gravity are formed efforts on supporting plates 9, and the goods take a detailed V-obraz is asipi, located in the V-shaped volume and the slanted end faces of goods 2. Because of this you can increase pegregalejo pipeline efforts on the part of the weighting.

When a group setting weights on the pipeline front surface of the ballast weights of the neighboring weights interlock with each other. When group mounting on the pipeline weighting between their inner surfaces formed V-shaped channel that hosts the soil backfill, resulting in increased efficiency ballasting of the pipeline. Aprons combined connective belt to prevent spillage of soil filling in the gaps between the panels and through their end edges in the group of weights.

Upon the occurrence of longitudinal operational movements of the pipeline significantly reduces their negative impact on the safety of the combined belt and weights, because its X-shape located soft zones occur stretching the pad 12 efforts. In addition, connecting a soft belt strap 12 significantly increases the bearing surface of the combined coupling zone on the pipeline and reduces the unit pressure on the insulation of the pipeline.

Postolachi, freely slide on the surface of the pipeline during its axial operating movement, without damaging its insulation coating. The invention eliminates damage to soft zones, as well as digging fastening elements zones, destruction of ballast weights and provides a more complete involvement in the work of the soil backfill.

The claimed invention can be used for fixation in flooded soils and other engineering structures with positive buoyancy, such as underground tanks.

Claims

1. The weighting of the pipeline plate (UPT) containing ballast weights in the form of flat panels and pivotally connected to these panels flexible jumpers, providing a fixed spatial position of the ballast weights in the sample weighting by cargo loops on the pipeline, characterized in that the weighting provided with a transverse pipe flexible partitions-aprons, and overlayed on the pipeline flexible jumper is made in the form of a combined connecting belt, flat panels ballast weights are through narrowed to the bottom of the trench conical hole is in the mounting of the combined connective belt, and each ballast weight interacts with the pipeline below the horizontal axial plane and directed to the pipeline flat wall provided with anchor plates attached along the perimeter of the flat panel ballast cargo in the area of its interaction with the pipeline.

2. Weighting under item 1, characterized in that each ballast weights - flat panel has a rectangular shape with beveled side of the pipe end faces, and the hinge connection of the ballast elements combined with the connecting belt is made with the possibility of this connection in two positions flat panel deployed one relative to another 90and with the possibility of providing the camber flat panels 90or 120.

3. Weighting under item 1 or 2, characterized in that each of the flat panels ballast weights are made equidistant from the edges of the flat panels four end-to-end tapering to the bottom of the trench is tapered holes, which are placed in the ends of the combined connective belt, forming together with the packing elements of the hinge mountings of the ends kombinirovannogo pivotally attaching the ends of the combined connecting the belt to the ballast goods made of corosion-resistant metal.

5. Weighting under item 1, characterized in that it is equipped with a Mat of non-woven synthetic material placed on the pipeline under the pickguard combo connecting a belt, thus transverse to the pipeline length of the Mat protects insulation from exposure based on the pipeline surface of each of the ballast weights of the weighting agent and does not exceed the circumference of the outer surface of the pipeline, and longitudinal - more than the size of the flat panel.

6. Combined connective zone for UPT, containing two imposed on the pipeline and connecting the ballast weights, respectively, a flexible bottom jumper and a pair of flexible upper lintels, characterized in that to reduce the effects of longitudinal movement of the pipeline on the durability of flexible jumpers belt with flexible lateral pipeline partitions-aprons, flexible bottom jumpers are X-shape with the calculated angle between them and fastened at its middle part imposed on the pipeline lining, flexible top jumpers located transverse to the pipe, are connected to the ends of the ballast of cargo, and the mid - plate, moreover, aprons scrap and flexible jumpers made in the form of soft zones, each of which is made of a multilayer preform technical fabrics in the form of a ring with overlaid weld and with the formation of cargo loops made of multilayer billet technical fabrics in the form of a ring with overlaid weld and with the formation of cargo loops and plate and aprons made of soft material belts or similar physical-mechanical properties of technical fabrics.

 

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