RU184322U1 - Rostverk for suspended support of pipelines of underground laying, compensating deviations of piles at installation - Google Patents

Abstract

The utility model relates to the field of construction, operation and repair of pipelines transporting gas, oil and other products, and can be used as a suspension support for an underground pipeline in a section with subsiding soils, including in conditions of watering areas and permafrost.

A grillage for overhead supports for underground pipelines, compensating for deviations of piles during installation, made in the form of two interconnected beams rigidly interconnected in the same plane with the supporting plates located on top, with rows of longitudinal grooves for the bolted connection at the ends, while the grillage is made elongated on one side of the axis of the pipeline, while on the elongated part of the grillage an additional row of longitudinal grooves for bolting is made, and on the opposite side with The corners of the grillage closer to the axis of the pipeline are made an additional row of longitudinal grooves for bolting.

The technical result is an increase in the manufacturability of the assembly of the suspension bearing by providing installation of the grillage on the piles with increased (above-standard) deviations, and reducing the time for installation works. 2 hp f-ly, 7 ill.

Description

The utility model relates to the field of construction, operation and repair of pipelines transporting gas, oil and other products, and can be used as a grillage of a suspension pipeline support on a site with subsiding soils, including in conditions of watering areas and permafrost.

Known suspension suspended for sections of the underground pipeline, containing a supporting element (grillage), located above the ground in the upper part, and combining piles into one stable system. The rostver is designed to take a vertical load of 110 ton-force on the weight of the underground pipeline with soil through a flexible chain suspension and transfer the load to the piles. Rostverk is made single-level in the form of interconnected two beams, rigidly interconnected in the same plane and reinforced with vertically oriented stiffening ribs and bridges, with supporting plates located above. The rostver is fixed on the pile foundation through at least two hinge-type support assemblies [patent RU 2601651 С1, published 10.11.2016, IPC F16L 3/14].

The disadvantage of the grillage is that the deviations of the head of the piles in the plan allowed by the construction of the grillage in the plan are insignificant and amount to ± 67 mm.

The technical problem addressed by the claimed utility model is to provide the possibility of assembling a suspended support on piles deviating from the symmetry of the piles relative to the axis of the underground pipeline up to 400 mm, as well as deviations of the pile head in terms of ± 150 mm and the deviation of intersite distance ± 300 mm.

The technical result achieved during the implementation of the utility model is to improve the manufacturability of the assembly of the suspension support and reduce the time for installation work by compensating for deviations of the pile head in the plan arising from drilling wells deviating from the symmetry of the piles relative to the pipeline axis to 400 mm, and also with deviations of the pile head in terms of ± 150 mm and deviation of the intersweet distance of ± 300 mm directly in the process of assembling the suspension support.

The claimed technical result is achieved due to the fact that the grillage for overhead supports of pipelines of the underground installation, compensating for deviations of piles during installation, made in the form of two interconnected beams rigidly interconnected in the same plane, with the support plates located above, while at the ends of the grillage are made rows of longitudinal grooves for bolting, with the grillage made elongated on one side of the axis of the pipeline, with an additional row of odolnyh recesses for bolt connection, and on the opposite side grillage closer to the axis of the conduit adapted additional series of longitudinal grooves for bolt connection.

Performing a grillage asymmetric, i.e. elongated from one end about the axis of the pipeline and making additional rows of longitudinal grooves for bolted joints on the elongated part makes it possible to compensate for deviations of the head of the piles in the plan arising during the drilling of wells that deviate from the symmetry of the piles relative to the axis of the pipeline to 400 mm at which the slope of the chains is formed , which increases the lateral load on the piles, as well as with deviations of the pile head in terms of ± 150 mm and the deviation of the intersite distance of ± 300 mm directly during the assembly process Ora suspended.

In addition, in the particular case of the implementation of the utility model, the length of the longitudinal grooves for the bolted connection is at least 245 mm.

In addition, in the particular case of implementing a utility model, the distance between the central axis of adjacent longitudinal grooves for bolting (pitch grooves) is at least 400 mm.

The utility model is illustrated by drawings: in FIG. 1 - the grillage is shown (top view); in fig. 2 shows a diagram of compensation for deviations of the piles in the plan and the inclination of the chains formed by the asymmetry of the piles relative to the axis of the underground pipeline at the maximum in-welder distance; in fig. 3 shows the position of the longitudinal grooves of the grillage with the deviation compensation scheme (section A-A and B-B in Fig. 2); in fig. 4 shows a diagram of the compensation of deviations of the piles in the plan and the inclination of the chains formed by the asymmetry of the piles relative to the axis of the underground pipeline at the nominal intersway distance; in fig. 5 shows the position of the longitudinal grooves of the grillage with a deviation compensation scheme (section M-M and H-H in FIG. 4); in fig. 6 shows a diagram of the compensation of deviations of the piles in the plan and the inclination of the chains formed by the asymmetry of the piles relative to the axis of the underground pipeline at the minimum intersway distance; in fig. 7 shows the position of the longitudinal grooves of the grillage with a deviation compensation scheme (the section D-D and E-E in Fig. 6). In the drawings, the positions have the following designations:

1 - grillage;

2 - base plates;

3 - an additional row of longitudinal grooves;

4 - longitudinal grooves (transverse axis of the pipeline);

5 - bearing clutch;

6 - half rings;

7 - pile;

8 - flexible chain suspension;

9 - lodgement;

10 - pipeline;

L is the intersway distance;

L ₁ , L ₂ - distance from the pile to the axis of the pipeline;

L ₃ - the distance from the edge of the grillage to the axis of the chain suspension from the side of the elongated part of the grillage;

L ₄ - the distance from the edge of the grillage to the axis of the chain suspension from the side of the non-elongated part of the grillage;

L ₅ - asymmetry of the pile relative to the axis of the pipeline;

L ₆ - the maximum displacement of the grillage by rearranging it on the sleeves supporting to the additional grooves and displacements along the grooves;

L ₇ - the residual tilt of chains allowed by the condition of strength of piles is not compensated by a grillage;

L ₈ - the length of the longitudinal grooves;

L ₉ - the distance between the central axis of the adjacent longitudinal grooves.

Suspension support for sections of underground laying of pipelines (Fig. 2, Fig. 4, Fig. 6) contains interconnected moving and fixed parts that interact with each other by connecting them with a flexible chain suspension 8, which ensures the transfer of the vertical load from the pipeline 10 to the above-ground grillage 1, mounted on piles 7.

The movable part of the support mates with a fixed part by means of a flexible chain suspension 8, consisting of two branches. Flexible chain suspension 8 is made in the form of a chain pivotally connected at one end with a lodgement 9 and at the other end with an adjusting screw supported through support washers, spherical washers and nuts on the support plate 2 (shown in Fig. 1) of the grillage 1.

The fixed part of the support is a grillage 1 and its attachment points to the pile 7.

Rostverk 1 for suspended supports of pipelines (Fig. 1) is single-level in the form of two interconnected beams rigidly interconnected in the same plane and reinforced with vertically oriented stiffening ribs and bridges with supporting plates 2 located on top of the ends of the grillage 1 with rows of longitudinal grooves 4 for a bolted connection with a support sleeve 5, mounted on half rings 6, welded to the pile 7. Rostverk 1 is made elongated on one side of the pipeline axis, thereby forming an asymmetrical design tion distance from the edge grillage grillage 1 to catenary axis 8 from the elongated portion grillage L ₃ greater than the distance from the edge grillage 1 to catenary axis 8 from the elongated portion not grillage L _4. On the elongated part of the grillage 1, an additional row 3 of longitudinal grooves 4 is made, and on the opposite side of the grillage 1 an additional row 3 of longitudinal grooves 4 is made closer to the transverse axis.

The length L _{8 of the} longitudinal grooves 4 for bolting is not less than 245 mm. The distance L ₉ between the axis of the adjacent longitudinal grooves 4 under the bolt connection (groove pitch) is at least 400 mm.

The rostver 1 is mounted on piles 7 when assembling the suspension support in accordance with the diagrams shown in FIG. 2, 4, 6.

FIG. 2 shows that at a maximum intersink distance L equal to 4500 mm, deviations of the head of the piles in the plan and partially inclination of the chains of 400 mm formed by the asymmetry of L ₅ piles 7 relative to the axis of the pipeline 10 by the amount of the maximum possible displacement of the grinder L _{6 are} compensated, ensuring the minimum allowable slope of L ₇ chain suspension chains 8, while the grillage 1 is installed on the coupling 5 on the extreme (outer) grooves 4 and is shifted along them to the maximum to the right, i.e. the bolts are located on the left side of the groove 4 (section aa and bb in fig. 3).

FIG. 4 shows that at a nominal intake distance of L equal to 4200 mm, deviations of the head of the piles in the plan and the inclination of the chains of the chain suspension of 8,400 mm formed by the asymmetry of L ₅ piles 7 relative to the axis of the pipeline 10 are compensated, ensuring their vertical position, while the grillage 1 is mounted on the couplings 5 to the extreme (outer) grooves 4, the bolts are located on the left side of the groove 4 (section M-M in FIG. 5) and on the internal grooves 4, the bolts are located on the right side of the groove 4 (section H – H in Fig. 5).

FIG. 6 shows that with a minimum intersite distance L equal to 3900 mm, deviations of the head of the piles in the plan and the inclination of the chains of 400 mm formed by the asymmetry of L ₅ piles 7 relative to the axis of the pipeline 10 are compensated, ensuring their vertical position, while the rostver 1 is mounted on the sleeves 5 to the extreme (external) grooves 4, the bolts are mounted on the right side of the groove 4 (section D-D in Fig. 7) and on the internal grooves 4, while the bolts are located on the left side of the groove 4 (section EE of Fig. 7).

Thus, the execution of the grillage 1 suspension support underground pipeline 10 asymmetrical, i.e. elongated on one side of the pipeline axis and the presence of additional rows of 3 longitudinal grooves 4 for bolted joints makes it possible to assemble a suspended support on piles deviating from the symmetry of the piles relative to the axis of the pipeline up to 400 mm, as well as with deviations of the pile head in terms of ± 150 mm and an intersway distance of ± 300 mm.

Claims (3)

1. Rostverk for overhead support for underground pipelines, compensating for deviations of piles during installation, made in the form of two interconnected beams rigidly interconnected in the same plane, with supporting plates located above, with rows of longitudinal grooves for bolting located at the ends of the grillage, characterized in that the grillage is made elongated on one side of the axis of the pipeline, while on the elongated part of the grillage an additional row of longitudinal grooves for the bolted connection is made, and On the opposite side of the grillage, an additional row of longitudinal grooves for bolting was made closer to the pipeline axis. 2. Rosterc under item 1, characterized in that the length of the longitudinal grooves for bolting is not less than 245 mm. 3. Rosterc under item 1, characterized in that the distance between the central axis of the adjacent longitudinal grooves for bolting is not less than 400 mm.

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