Polymer panel-type anchoring device

FIELD: construction engineering; laying pipe lines in frozen and rocky soils.

SUBSTANCE: proposed device has pair of symmetrical (relative to pipe line) reservoirs filled with ballasting soil which are connected with load-bearing band and flexible load-bearing strips secured to outer longitudinal sides of rigid rectangular frames forming the framework of reservoirs; they are engageable with pipe line below its center generatrices. Device is provided with cover plate located above load-bearing band; edges of this cover plate are laid on pipe line and are connected above upper generatrix of pipe line at overlap. Transversal sizes of reservoir exceed width of trench; reservoirs are located in pits without transfer of weight of ballast to their bottom ; reservoir are made in form of boxes. Bottoms of reservoirs and load-bearing band are made from single cloth of flexible material passed under inner longitudinal sides of flat frames and secured on their outer longitudinal sides. Cover plate, load-bearing band and flexible load-bearing strips are secured in center part; angle between planes of rigid frames of reservoirs does not exceed 180 deg.

EFFECT: enhanced reliability of securing pipe line at design marks.

7 cl, 2 dwg

 

The invention relates to the construction and can be used in the construction of pipelines in frozen and rocky soil.

Pipelines are in different geographical areas with different topography, climatic conditions, availability of natural and artificial obstacles. It requires absolute reliability of structures such important structures as pipelines, ensure a long and trouble-free operation. With the reliability issues associated conditions of operating pipelines, resulting from the nature of the terrain, the availability of natural and artificial barriers, and technological features.

This problem is aggravated by the conditions of construction of pipelines in the North and with increasing diameters of pipelines and operating pressures in them. So while working on the opening of the pipeline rastoplenny the soil from the trench is removed to the dump, where in the North, he gets frozen within a few hours. It is known that frozen soil hardness equal to rocky soils. After completion of repair works backfilling of soil from the blade into the trench becomes difficult. The most common method of cultivation in these conditions is mekhanizirovn the GE way: wedge diesel hammer, hung on the excavator, tractor, or tractor loaders, and tractors, equipped bars with incisors or canine, excavation and milling machines, by repeated passage through frozen ground crawler bulldozers.

When small quantities of frozen soil loosened by hand - crowbars, sledgehammers using wedges. All these methods share common drawback - the frozen soil contains a large number of pieces which are larger than the maximum allowable for backfilling of the pipeline because of the danger of damage to the insulation.

Practice has shown that the use of frozen lumpy soil when backfilling it in the tank ballasting the pipeline weighting materials, especially polymer-container type, causes damage to their bottoms and walls made of polymer material.

The prior art weighting for laying underground pipeline containing symmetrically fixed to the pipe and filled with soil and a couple of tanks, each of which is composed of a rigid frame and suspended her semi-cylindrical, made of flexible material, the container (SU 769178 A, 1978, F 16 L 1/06).

Known weights used for ballasting group of pipes, with the weighting in the group fasten for erzulie cross frames. A disadvantage of the known solutions is the increased consumption of material on the end walls of the container, as both adjacent walls of the containers perform the same function are delimiters for soil backfill, and insufficient mechanical strength of the container.

Analogous to the claimed invention is the weighting of the pipeline, known from the patent RU 2164636 C1, 27.03.2001, F 16 L 1/06.

The weighting agent comprises a pair of containers made of rigid planar frame and suspended her semi-cylindrical, made of flexible material of the container. The vessel has multi-section along the axis of the pipeline section is separated from the adjacent intermediate transverse walls and frame struts. Capacity weighting interconnected imposed on the pipeline connection - power belts, made of flexible material and fixed ends on the exterior girders of the framework. When installing mass under the action of the soil backfill of the cloth forming capacity, deformed and between neighboring group weights arise wedge-shaped gaps, which wakes up ballasting soil backfill, and insufficient mechanical strength of the containers when loading them in the frozen crushed soil.

Closest to the claimed invention is the weighting of Trubar the water, known from SU 1067284 And 15.01.1984, F 16 L 1/06. Known weighting contains placed symmetrically relative to the longitudinal axis of the pipeline capacity with rigid rectangular frames of the rod. Walls suspended from the frame and is made from a single strip of flexible material. The weighting provided with a pair of flexible jumpers attached ends to the outer corners of the frames. Flexible jumpers and forming walls of the strip of flexible material connected in the middle part, imposed on the upper generatrix of the pipe. A disadvantage of the known solutions is the lack of reliability of the bottoms of vessels, increased intensity, the possibility of deterioration of the soil backfill over the sides of containers. The inclined position of the frame of the containers when using frozen lumpy soil as a ballasting material does not allow you to use fully the capacity of prigroziv for the pipeline.

Thus, there is the challenge of creating a ballasting device having high reliability in the North when using frozen lumpy soil as a ballasting material and allowing full use of the useful volume of the tank filler for fixing the main pipeline in the project location, as well as providing floor the second engagement soil backfilling and improving technology ballasting of the pipeline.

This task is solved in that the polymer-panel anchorwomen device (PAP) Muhametdinova containing a pair of symmetrical relative to the longitudinal axis of the pipeline filled ballasting ground and made of panels of flexible material containers connected imposed on the pipeline power belt and flexible power jumpers attached to the outer longitudinal sides of the rigid planar rectangular frame forming the frame of the tank and in contact with the pipe below its medium forming the inner longitudinal sides of the flat rectangular frames, according to the invention, the PAP has additional above the power zone and envelope the inner longitudinal side of the flat part of the plate, the edge of which is re-stacked on the pipeline and connected with overlap over the top of the pipe and the lateral pipe sizes of containers exceed the standard width of the trenches are dug with a calculated step in the trench pits without passing on their bottom ballasting weight of soil in tanks, and reservoirs are supplied by the sides and made the box-shaped form, which sidewall sealed bottom edges with the bottom and top edges by means of eyelets from the transverse sides of the flat rectangular tanks, the bottom eat the spines and the power belt is made from a single, imposed on the pipeline of a panel of flexible material passing under the inner longitudinal sides of the flat part and secured at their outer longitudinal side edges by means of lugs, flexible power jumper made in the form of multilayer films, the ends of which are provided with lugs and dual panel overlay, power zone, and the external power jumper is bonded into imposed on the pipeline their middle part, and the angle between the planes of the rigid planar rectangular tanks does not exceed 180 degrees. In addition, additional end walls connected with the side walls of the containers.

In the particular case of performing the PAP flexible power jumpers supplied bonded with them more end walls, entry them inside the containers. In private cases, perform PAP rigid flat rectangular frame made of a collapsible tubular elements, as well as dual relatively in the longitudinal pipe direction.

In the specified particular case of performing the PAP strap, power belt, flexible power jumper made dual relatively in the longitudinal pipe direction and are connected by lugs respectively with each of the dual hard flat rectangular framework.

In the latter case, perform a PAP adjacent edges sdoesn the x in the longitudinal direction and forming the bottom of the tank panels power belts fastened together.

Tubular elements of the frame rigid planar frames provide ease of transportation and Assembly when attaching the pipeline to the design elevations.

Perform additional pads of the dual panels, fastening its ends on the inner (lower) longitudinal sides of the flat part, and the implementation of flexible power jumpers in the form of a multilayer tape with eyes fixed on the outer (upper) longitudinal sides of the flat part, improves the reliability of the fastening device on the pipeline, unloads longitudinal side of the rigid planar rectangular frame from bending loads encountered when filling tanks ballasting ground.

The presence of the end walls of the containers and sealed with flexible power jumpers additional end walls increases the reliability of fastening of the pipeline due to more complete filling of the device with soil and eliminates the eruption of soil backfill over the ends of the weighting agent.

Box-shaped vessel form PARP prevents damage to the material of the bottoms of the containers at a filling them with soil, creates in this initial stabilizing the position of the PAP on the pipeline and allows you to use soil with inclusions of large pieces.

Accommodation filled with soil reservoirs in buried soil backfill Priam the Ah with the formation of the angle between the planes of the rigid planar rectangular tanks, not exceeding 180 degree turns PLR anchor embedded in the ground plate, which perceives pulling force equal to the weight of the filled soil PAP and the weight of the column of soil backfill over PAP (cone or cylinder bulging). These anchor plates are bending from the force of the reactive resistance of the soil when operating moving up the pipeline. To reduce the material intensity of the PAP made in the form of membranes, stretched on a rigid flat rectangular frame, while the load-bearing element - membrane (capacity) work only in tension. Anchor membrane-capacitance due to its trough-like form is symmetric and Central application of loads to the PAP.

The invention is illustrated by the graphic material, in which figure 1 shows the device in plan; figure 2 is a view As in figure 1 (rotated).

PAP Muhametdinova is located in the open with calculation step (10-20 m) pits in trench normative width (1.5 diameter) and contains imposed on the pipeline 1 power zone 2 and attached to the longitudinal axis of the piping edges a pair of flat rigid framework 3. With frames associated fill ballasting ground 4 capacity 5 of flexible material power belts.

The longitudinal edges of the flexible panels of the bottom 6 of the tank 5 is bonded with exterior relative activities the pipeline but the longitudinal sides 7 (runs) a flat rigid framework 3 eyelets 8, which made the cut for the placement of the eyelets flexible power jumpers. In the outer corners of the frame 3 at a distance of 100-300 mm from the sides recorded lugs flexible power jumper 9. The bottom 6 of the tank and weight belt 2 is made from a single imposed on the pipeline of a panel of flexible material passing under the inner longitudinal sides 10 of the flat part 3. The PPA provided with an additional, above the power zone 2, the envelope of the inner longitudinal side 10 of the flat part 3 a cover plate 11. Power belt, escutcheon and flexible power jumper is made from technical fabrics, such as TBG, with tensile strength not less than 300 kg/5 cm (sample width of 5 cm).

Flexible power jumper 9 is made in the form of a multi-layer belt with eyelets on the ends, which is inserted elements of the flat part 3 - outer longitudinal side 7. Power zone 2, dual cloth extra pads 11 and flexible power jumper 9 is connected at its imposed on the pipeline 1 medium-sized parts. By forming the bottom of the tank 5 panel sewn end walls 12 of the tank 5, United eyelets with transverse elements 13 of the flat part 3 with the formation of shaped containers 5.

With flexible power jumper 9 is connected in the form of gusset plates of technical fabrics additional end walls 4, when the ballasting start inside the containers 5 with contact to the side walls 12.

Capacity 5 symmetrically fixed to the pipeline 1. Runs - the longitudinal sides 7, 10 flat rigid framework 3, the mechanical elements of the cross member 13 (spacers) made of tubular elements. This embodiment is a flat rigid framework simplifies transportation and installation. Flat rigid frames are force bearing elements vessels PAP. The stability of the PAP on the pipeline is provided by the size of the bottom panel - power belts imposed on the pipeline, when the planar rigid frame in contact with its lower longitudinal sides with the surface of the pipe below its horizontal diameter. The ratio of the lengths of the power belt, extra pads and flexible power jumper puts the framework in which their outer longitudinal side girders do not protrude above the top of pipe and the bottom of the tanks PAP are located in a position close to horizontal. The capacity of the weighting fill with soil consistently, preferably symmetrically, which prevents the distortion of the containers. Bending in the plane of the flat rigid part of the load is perceived by a metal frame. The volume of soil accommodated by a single device, depending on the pipe diameter ranges from 10 to 4 cubic meters

A special case of the pipeline is running in the trench with the increased length of the pits, which is typical for glacial soils in the North. In this case, it is advisable to use the PAP with the increased size of vessels under ballasting the ground, for which rigid planar frame 3 perform extended length dual cross bars in their middle part. In the specified particular case of performing the PAP strap, power belt, power jumper made dual relatively in the longitudinal pipe direction and are connected by lugs respectively with each of the dual hard flat rectangular frame, and the adjacent edges of the dual in the longitudinal direction and forming the bottom of the tank panels power belts fastened together.

For a more complete use of volume weighting flexible power jumper 9 provide additional upper end walls 14, which prevent the precipitation of soil from the PAP. Filling the containers with the PAP and backfilling with soil piping with the formation of the angle of repose are backfilling of trenches and pits with soil with any size pieces. As filling of tanks and trenches with soil backfill is calculated elongation of textile material, the PAP, and a rigid flat rectangular frame capacities from naclonal the provisions go into a position close to the horizontal, with the formation of the angle between the planes of the rigid planar rectangular containers not exceeding 180 degrees, which makes the PAP in the anchor embedded in the ground plate, which perceives pulling force equal to the weight of the filled soil PAP and the weight of the column of soil backfill over PAP (cone or cylinder bulging).

PAP works on bending from the force of the reactive resistance of the soil when operating moving up the pipeline, completed in the form of a membrane stretched on a rigid flat rectangular frame, capacity to work only in tension, and a rigid flat rectangular frame tanks are bending. Anchor membrane - capacitance due to its trough-shaped form to provide a symmetrical Central load application on the PAP.

The technological invention in the manufacture due to their low weight and easy to assemble, convenient for transportation and installation on the pipeline, and effectively at different laying and operation of pipelines. Improves the reliability of the ballasting of the pipe and eliminates the possibility of damage to the insulation during construction and operation.

1. Polymer-panel aneroussa device (PAP)containing a pair of symmetrical relative to the longitudinal axis of the pipeline filled ballasting gruntee made of panels of flexible material containers, United imposed on the pipeline power belt and flexible power jumpers attached to the outer longitudinal sides of the rigid planar rectangular frame forming the frame of the tank and in contact with the pipe below its medium forming the inner longitudinal sides, characterized in that it is provided with an additional, above the power zone and envelope the inner longitudinal side of the flat part of the plate, the edge of which is re-stacked on the pipeline and connected with overlap over the top of the pipe, while the transverse pipe dimensions, capacities exceed the standard width of the trenches are dug in the trench with the calculated step the pits without passing on their bottom ballasting weight of soil in containers, and these containers are equipped with sheets and made the box-shaped form, which sidewall sealed bottom edges with the bottom and top edges by means of eyelets from the transverse sides of the frame of the tank, the bottom of the tanks and weight belt is made from a single imposed on the pipeline of a panel of flexible material passing under the inner longitudinal sides of the flat part and secured at their outer longitudinal side edges by means of lugs, flexible power jumper made in the form of multilayer films, Kon is s which is equipped with lugs and dual panel overlay, power belt and flexible power jumper is bonded into imposed on the pipeline their middle part, and the angle between the planes of the rigid planar rectangular tanks does not exceed 180°.

2. The device according to claim 1, wherein the rigid planar rectangular frame made dual relatively in the longitudinal pipe direction.

3. The device according to claim 2, characterized in that the cover plate, power belt, flexible power jumper made dual relatively in the longitudinal pipe direction and are connected by lugs respectively with each of the dual hard flat rectangular framework.

4. The device according to claim 3, characterized in that the adjacent edges of the dual relatively in the longitudinal pipe direction panels power zones forming the bottoms of the containers fastened together.

5. The device according to claim 1, wherein the rigid planar rectangular frame made of a collapsible tubular elements.

6. The device according to claim 1, characterized in that the flexible power jumpers supplied bonded with them more end walls, entry them inside the containers.

7. The device according to claim 6, characterized in that the additional end walls connected with the side walls of the containers.



 

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