The method of construction of the pipeline, the method of laying pipe with a protective sheath and device for its implementation

 

The invention relates to underground construction, in particular to a method of laying a pipeline under the natural and artificial obstacles, including water hazards. The objective of the invention is the provision of pipeline construction as in normal conditions, and under artificial and natural obstacles, including water hazards, soils containing boulders and other solids, with a guaranteed saving insulation of the pipeline, the possibility of carrying out repairs or complete replacement of the pipeline. The method of construction of the pipeline includes the construction of mine shafts outside water barriers in places of the greatest accumulations of boulders and other solid impurities. Between the shafts first shield are complex tunnel under the barrier, and then sloping sections of the tunnel are of the shafts to the level of laying pipelines under construction trench method. The location of the integration of the area under the obstacle with ramps tunnel connecting the inserts. During shield tunneling erect metal casing or cast-pressed lining inside which dragged protective p is avleat centralizers for traction and traction distribution branches rope then dragged the pipeline. After pulling the protective plastic pipes and pipe them leave freely mounted relative to each other. Placement of centralizers used auxiliary traction distribution and traction winch, and a tapered trailing mechanism with by-pass roller. Centralizers installed in the trench tray. Formed of traction and traction-distribution of branches of the rope loop is passed through guide holes (channels) of all centralizers and attached to the auxiliary winch rope. As you pull the loop of the auxiliary winch on the trailer distribution branch of the rope on the calculated distances fixed centralizers and so is their placement along the tunnel. 3 S. and 11 C.p. f-crystals, 6 ill.

The invention relates to the field of underground construction, in particular to a method of laying pipelines under the natural and artificial obstacles, including water hazards.

There is a method of construction of tunnel by shield tunneling method through the water obstacle, including the driving of horizontal and inclined sections of the tunnel, followed by the erection of permanent krassotrin only one possible location of the tunnel, built by shield tunneling method, which is used as an underground passage. However, in the known technical solution is not is not the question of the possibility of pipeline construction and the erection of a protective shell for protection from the damage of the pipeline, as well as the possibility of carrying out repairs or complete replacement of the pipeline.

The closest solution (for method of construction of the pipeline) to the technical essence and the achieved result is the method of construction of the pipeline, including the construction of mine shafts, consisting of a control room the tunnel excavation and pipeline installation (Glorikian C. H., Hodos Century A. Evaluation boards and systems, Moscow, Nedra, 1977, pp. 279-284).

In this technical solution simultaneously with the excavation of the tunnel is the construction of the pipeline. The disadvantage of this method is damage to the isolation of the isolated pipeline, the impossibility of carrying out repairs or complete replacement of the pipeline. In addition, issues of rational allocation of shafts, the sequence of driving under the obstacle and inclined sections of the tunnel during the construction of the pipeline under water hazard.

The known method of mounting a protective shell pipeline, including the placement of the pipeline in the security is rnost pipeline and subsequent fixing of the other (free) end.with. 459634, CL F 16 L 59/14, published. 1975).

This solution is intended to protect the insulation of the pipeline through the containment. However, it provides only a method of mounting a protective sheath of individual pipe sections in their manufacture or in preparation for connecting it to the pipeline string. At the same time in this technical acceptance does not address the prevention of damage to the insulation of the pipeline and its protective sheath in the process of pulling along the tunnel, as well as the possibility of carrying out repairs or complete replacement of the pipeline.

The closest solution to the technical essence and the achieved result (for a method and device for laying pipe with a protective shell) is a method of laying pipeline, including accommodation and pipe jacking along the production by pulling the rope. The device for implementing this method includes a tapered tip at the end of the jam through the element, the traction mechanism with a traction rope, mounted on the opposite side from the jam through a pipeline (Kukin Y. S. and other crossings of pipelines through natural and artificial against the IC pipe jacking. This solution does not protect the pipeline during laying and operation. Not decide the issue of the possibility of carrying out of repair work and full replacement of the pipeline.

The objective of the invention is the provision of pipeline construction as in normal conditions and under natural and artificial obstacles, including under water barriers, in soils containing large solids in the form of boulders, gravel, etc. with a guaranteed saving insulation and the possibility of carrying out of repair work and full replacement of the pipeline.

The problem is solved due to the fact that the method of construction of the pipeline, including the construction of mine shafts, consisting of a control room, the driving of the tunnel with the construction of integrally-molded lining and or erection of the metal casing with the subsequent laying of the pipeline after construction of the tunnel dragged protective polymeric pipe and tubing, which is placed inside a protective plastic pipes, and in the construction of the pipeline under natural and artificial obstacles shafts build beyond this obstacle in the places of highest concentration of solid impurities that are opredelyaytes, and then of them are inclined sections of the tunnel exit on the surface at the level of the laying of the pipeline, built in the trench, while the sections of the tunnel where they mate connect through inserts corresponding to the diameter of the studied tunnel, and at first slip protective polymeric pipe inside the covered tunnel, hold it against longitudinal displacement, then pulled inside a working pipeline.

A possible variant, in which the protective polymeric tube is placed inside the pipe are pulled together inside a covered tunnel, and the pipeline leave freely placed inside protective plastic pipes and the space between the protective polymeric pipe and the pipe is filled with a special compound.

The method of pulling of the pipeline involves placing pipe in a protective sheath in the form of plastic pipes, which are installed on the entire length of the inside of the completed production, and dragging them along the production by pulling the rope, while production takes place in the form of a tunnel, along the entire length of which make the placement of centralizers for traction rope, when the joint dragging t and when separated into protective plastic pipes and pipe placement of centralizers spend in pre-installed protective polymeric tube, the distance between the centralizers choose from a condition of guaranteeing gap between the pulling rope and the inner surfaces of the protective polymeric pipe or built the tunnel in the form of a metallic casing when Cordova position of the traction rope in the interfaces area under an obstacle and inclined sections of the tunnel, with half of the traction rope from the drum traction distribution winch is wound on the drum traction winch with the formation of two equal length traction and traction-distribution of branches and loops, which is passed through the guide ropes of all centralizers and is connected to a rope auxiliary winch with hand jam through the pipeline, and as broaching their auxiliary winch on the calculated distances alternately still fix centralizers on the traction distribution branch.

Centralizers can be evenly rastellini along the entire length of the tunnel on the selected maximum distance, while the promotion of the pipeline to fixed on the traction distribution branch traction rope clamp shift in the direction of pulling of the pipeline through traction represovanih sections of tunnel interfaces plot obstacle and inclined sections of the tunnel, during the promotion of the pipeline to another stationary fixed on the traction distribution branch traction rope clamp they are swapped from the condition of guaranteeing gap between the pulling rope and a protective polymeric pipe or built a tunnel with a metal casing when Cordova position of the traction rope, and as centralizers on the surface they are freed from the power distribution rope and collected in a trench tray.

Device for laying pipe with a protective sheath includes a tapered tip at the end of the jam through the element, the traction mechanism with a traction rope, mounted on the opposite side from the jam through the pipeline, and provided with centralizers on the traction distribution rope, the tip is made in the form of a cone trailer mechanism with by-pass unit, and a traction mechanism includes trailer with winch, power winch, installed with the possibility of winding on its drum with drum traction with the traction winch rope with the formation of traction and traction-distribution of branches, with the ability to commit to the last centralizers, and wspomagania to the loop of the traction rope, educated traction and traction distribution branches of the traction rope.

The claimed technical solution is characterized in the iterative formula with several independent points, satises single General inventive concept, in accordance with the requirements set forth in paragraphs. 2., 3. and subparagraphs (5) and (6) p. 19.4. The "rules" of drafting, filing and examination of applications for patent for an invention.

The claimed group of inventions contains inventions, some of which method and device the pulling of the pipeline are intended for use in another method of construction of the pipeline). When you do this on purpose (the construction of the pipeline) these signs are the same. In accordance with subclause (6) p. 19.4. these "Rules" is not disturbed condition single General inventive concept, if the total for inventions characteristics of the formulation of one of them additionally includes specific features (in our case, in the Method and device of pipeline pulling through advanced technical result is achieved, namely reducing or eliminating wear of the traction rope and the elimination of damaged piping insulation and protection is p> The claimed technical solution meets the conditions of industrial applicability, novelty and inventive step.

Because the claimed technical solution can be used in industry (in the underground pipeline construction) and in the conduct of his implements the purpose specified in the application materials, namely the pipeline under natural and artificial obstacles, including water hazards, the claimed technical solution meets the criterion of "industrial applicability".

In the process of patent studies have not found a technical solution, which fully coincides with the claimed technical solution described in the presented iterative formula of the invention, and is not obvious from the known technical solutions (prior art) about the possibility of achieving a technical result that is specified in the application materials, the claimed technical solution meets the criteria of "novelty" and "inventive step".

The invention is illustrated by drawings, where Fig. 1 shows the layout of the mine shafts, the area under the obstacle and inclined sections of the tunnel for laying a pipeline paraboloidal; in Fig. 3 is a diagram of the location of centralizers in areas with critical radii of curvature of the tunnel, where you can touch traction rope plastic pipes and damage it when pulling through the working of the pipeline of Fig. 4 is a diagram pulling the protective polymeric tube; Fig. 5 is a diagram of the placement of centralizers (in the plan) on the highway tunnel in protective polymeric tube; Fig. 6 is a view As in Fig. 5 on the centralizer.

Method of laying pipeline is as follows. Outside artificial or natural obstacles, in our case water barriers 1, construct shafts 2 and 3. Prior to the construction of mine shafts 2 and 3 are conducted geological reconnaissance and determine the location of highest concentration of boulders, pebbles and other hard inclusions, which are located along the tunnel. To reduce the complexity of tunneling by preventing or reducing the likelihood of meeting the tunneling shield with boulders and other hard inclusions shafts 2 and 3 are constructed in places of the greatest accumulations of boulders and pebbles and other hard inclusions, since their extraction in public works during the construction of mines significantly easier. The tunnel contains slanted orogeny shafts 2 and 3, first between them implement consisting of a control room sinking under the barrier section 6. Then from the shafts 2 and 3 are inclined sections of the tunnel 4 and 5 output level bookmarks pipeline, built in an open way in the trench.

In mine shafts 2 and 3 are formed most critical radii of curvature of the tunnel in places 8 pair plot for obstacle 6 with inclined sections of the tunnel 4 and 5. Due to the fact that ramps 4 and 5 can be of a different length and angle of the axis relative to the horizon, and the critical radii of curvature of the tunnel may be different. The radii of curvature of all sections of the tunnel are selected from conditions work material casing tunnel and working pipeline to bending during scrubbing in the area of elastic deformation.

After the sinking mine shafts 2, 3 sections of tunnel 4, 5, 6 interfaces interconnected by insertion of the metal casing 9, the corresponding (equal to) the diameter of the studied tunnel, forming a continuous tunnel for the entire length of the crossing under the obstacle.

Its possible that in the process of sinking erect non-metallic casing 9, and the cast-pressed lining.

In the case of the erection of the metal casing 9 use jacking prodavlivayutsya installation. When bosox.

After tunneling 9 immediately start pulling the pipeline 10. Pipe jacking 10 is made either in conjunction with a protective polymeric tube 11 within which is placed the pipe 10, or complete, a protective polymeric tube 11, and then inside it is complete, the pipeline 10. In the latter case, after pulling the protective polymeric tube 11 along the entire length of the tunnel (output) it is fixed against longitudinal displacement by any known method relative to the metal casing 9. This can be a limiting stops, boots or annular stopper.

After pulling pipe 10 and he freely placed inside a protective plastic pipes 11 with offset their horizontal axes of symmetry on the value of l. Protective polymeric tube 11 also freely installed in a metal casing 9 offset their horizontal axes of symmetry on the value of l1. The space 12 between the protective polymeric tube 11 and the casing 9 of the tunnel may be filled with a special hardening composition. Free placement of the working pipe 10 relative to the protective polymeric tube 11 allows you to retrieve the pipeline 10 in the repair and replacement.

Disclosed in the OPI is a technical result, listed above. However, in the case of erection of piping in tunnels large length and containing horizontal and inclined sections of the tunnel when dragging traction rope protective polymeric pipe 11 and pipe 10, the possible wear of the traction rope when you touch it with a metal casing 9, as well as damage the protective polymeric tube 11 when pulling the pipeline 10 in the interaction of the traction rope with protective polymeric tube 11, especially in places 8 pair plot for obstacle 6 and inclined 4 and 5, which forms a critical radius of curvature of the tunnel. Damage to the protective polymeric tube 11 is also possible when pulling the pipeline 10 having only the area under the obstacle 6. This is possible with uneven or sudden application of force to the traction rope, which forms a wave-like motion. When a large amplitude vibrations of the traction rope, especially when pulling the pipeline at great length, rope, interacting with a protective polymeric tube 11, may lead to its damage. To prevent the above-described disadvantages of the proposed method of laying pipeline in the presence of a protective sheath (plastic pipes) by Ravasi with the that this way of pulling of the pipeline allows the most efficient to provide the construction of the pipeline, especially in tunnels, containing plots obstacles and ramps, these two methods are combined, so as to form a single inventive concept. However, the method and apparatus of pipeline pulling through with a protective sheath may be used as a separate technical solution.

Pipe jacking 10 using centralizers 13 for traction 14 rope is as follows. In the case of joint pulling of the pipeline 10 and the protective polymeric tube 11 centralizers 13 rasstavlyayut on the highway tunnel in the casing 9. In the event of separation of pulling of the pipeline 10 and the protective polymeric tube 11, the operation of the placement of centralizers twice - first centralizers 13 rasstavlyayut on the highway tunnel in the casing 9 for pulling polymeric tube 11, and after pulling the plastic pipes 11 centralizers 13 rasstavlyayut in the polymeric tube 11 for pulling the working of the pipeline 10.

When separate into a polymer tube 11 and the working of the pipeline 10, the rope 16 auxiliary winch 17 are laid within the floor is kernou the pipe 11, especially with small internal diameter and a large length. You can use pre bookmarks in a polymer tube 11 intermediate, top rope or strong cord, which in the future by dragging the auxiliary 16-of-war. Placement of centralizers end of the rope 16 auxiliary winch dragged through the tunnel 9 or polymeric tube 11 to the output trench tray 30, where have centralizers 13.

In the case of one-piece traction 14 rope in half with his drum traction distribution 18 winch is wound on the drum 19 traction winch. The formed loop 20 with equal along the length of the traction distribution 21 and 22 traction branches traction 14 of the rope is passed through guide holes 23 (channels) of all centralizers 13, located in trench tray 30 host-side traction distribution 18 and 19 traction winch on the opposite side from the jam through the pipeline 10. Then to the loop 20 is attached to the rope 16 17 auxiliary winch, which is defined by jam through pipeline 10 (polymer pipe 11). In the case of traction 14 rope, consisting of separate traction distribution is ex centralizers, connect among themselves and are fixed on the head - middle to tunnel the centralizer 13. When this loop 20, equal in length to the calculated position of the head clamp, is formed directly from the traction 22 branches rope. Then to the loop 20 is attached to the rope 16 17 auxiliary winch, which is defined by jam through pipeline 10 (polymer pipe 11).

As the pulling winch 17 loops 20 on the highway tunnel at the same time produce the dissolution of the traction distribution 21 and 22 traction branches of the traction rope, respectively, with drums traction distribution 18 and 19 traction winches. In the process, for traction and junction 21 of the branches of the traction rope is fixed centralizers 13, for example, by clamping screws traction with 21 branches in the guide holes 23 centralizers 13. Centralizers 13 are fixed alternately on the traction distribution 21 branches on the calculated distances, and their arrangement on the route of the tunnel is in the process of pulling the branches of the traction rope 14 rope 16 auxiliary winch 17. The distance between the centralizers 13 is chosen from the condition of guaranteeing the gap 24 between the traction 14 rope and protective polymer or metal pipe 11 to the x 4 and 5 are plots of the tunnel, under which prevents the interaction of the traction 14 rope with protective polymeric tube 11 or with the metal casing 9.

The clamp 13 is made in the form of a cylinder 26 with rounded ends into the cylinder and hub 27 that is located in the center and hard lashing relative to the cylinder 26 radially spaced rods 28. The hub 27 is made with the guide hole (channel) 23 on the center clamp 13. In the hub 27 has threaded holes for the fixing screws, by which through the presser bar traction distribution branch 21 is fixed relative to the stationary clamp 13. The guide 23 is performed with channels to accommodate 22 and traction traction with 21 branches.

After placement of centralizers 13 along the tunnel traction distribution 21 branch is now on pulling with the winch 18. Loop 20 traction 14 rope is detached from the rope 16 17 auxiliary winch and starts on 29 bypass unit mounted on a cone-trailer mechanism 15 mounted on the head part of the jam through the working of the pipeline 10 or polymeric tube 11.

The inclusion of 19 traction winches with pulling 22 branches polymeric tube 11, Il is VOA head part of the first centralizer 13, then the traction distribution branch is removed from the fixation and traction distribution 18 winch is a permutation of centralizers 13, at the same time produce a dissolution traction 22 branches of rope.

In the case of uniform placement of centralizers 13 along the length of the tunnel, all units are shifted in the direction of pulling through by an amount equal distance placement of centralizers 13 if any cycle of pulling through.

In the case of placement of centralizers 13 only on curved sections of the tunnel in places 8 pair plot for obstacle 1 and inclined 4, 5 sections of the tunnel when the pipeline 10 to the first clamp 13 is similar to the previous case of peremeshany centralizers. Subsequent movements of the centralizers 13 in the second case are different in that they are swapped based on conditions bordovogo location traction 14 rope with guaranteed clearance between it and the casing 9 or plastic pipe in the seats 8 of the coupling area under the barrier 6 and inclined sections 4 and 5 of the tunnel. It is as follows.

Centralizers 13 on the curved part of the track of the shaft 3 are: first on one side of the site under the barrier 1 and the other on the inclined 5 accentuator 13 is located in an inclined 4, and two clamp 13 in the area of 6 - under obstacle. After the first movement of centralizers 13 of the shaft 3 are both in the area of 6 under the obstacle, while the centralizers 13 of the shaft 2 are after their first shifting as follows. Two clamp 13 are mounted on the inclined section 4 of the tunnel, and one centralizer remains at the site 6 under the obstacle. In the subsequent shifting of centralizers 13 those centralizers, which are mounted on a curved section of the shaft 2, if the length of the section 6 under the obstacle is shorter than that displayed in the trench tray 30, and the centralizers 13, originally installed on a curved section of the tunnel at the location of the shaft 3, are swapped on a curved section of the tunnel at the location of the shaft 2. As a conclusion of all centralizers 13 from the surface they are released from latching onto the traction distribution 21 branches and collected in a trench tray 30. After pulling traction 14 rope is removed from the guides 23 centralizers 13; centralizers 13 is lifted from the trench of the tray 30.

The claimed technical solution provides the pipeline both in normal conditions and under natural is inelastic solids, with a guaranteed saving insulation and the possibility of carrying out of repair work and full replacement of the pipeline. Prevents wear of the traction rope and damage to protective polymeric pipe when pulling through the working of the pipeline.

In addition, such a method of construction of the pipeline under water barriers interference shipping.

Claims

1. The method of construction of the pipeline, including the construction of mine shafts, consisting of a control room, the driving of the tunnel with the construction of integrally-molded lining or construction of the metal casing with the subsequent laying of the pipeline, characterized in that after the construction of the tunnel dragged protective polymeric pipe and tubing, which is placed inside a protective plastic pipes, and in the construction of the pipeline under natural and artificial obstacles shafts build beyond this obstacle in places of the greatest accumulations of solid particles, which are geological exploration, while at the beginning of the pass the area of the tunnel barrier between the shafts, and then of them are inclined sections of the tunnel with their launch day p is the sections of the tunnel where they mate connect through inserts, corresponding to the diameter of the studied tunnel.

3. The method according to p. 1, wherein the first slip protective polymeric pipe inside the covered tunnel, hold it against longitudinal displacement, then pulled inside a working pipeline.

4. The method according to p. 1, characterized in that the protective polymer tube is placed inside the pipe are pulled together inside a covered tunnel.

5. The method according to p. 3 or 4, characterized in that the pipeline leave freely placed inside protective plastic pipes.

6. The method according to p. 3 or 4, characterized in that the space between the protective polymeric pipe and pipeline fill-curing composition.

7. The method of laying pipe with a protective shell, including the placement of the pipeline in a protective sheath in the form of plastic pipes, which are installed on the entire length of the inside of the completed production, and dragging them along the production by pulling the rope, wherein the production takes place in the form of a tunnel, along the entire length of which make the placement of centralizers for traction rope.

8. The method according to p. 7, characterized in that when the joint pipe jacking with protective p fact, when split into protective plastic pipes and pipe placement of centralizers produce pre-installed protective polymeric pipe.

10. The method according to p. 8 or 9, characterized in that the distance between the centralizers choose from a condition of guaranteeing gap between the pulling rope and the inner surfaces of the protective polymeric pipe or built the tunnel in the form of a metallic casing when Cordova position of the traction rope in the interfaces area under an obstacle and inclined sections of the tunnel.

11. The method according to p. 7, characterized in that the half pulling the rope from the drum traction distribution winch is wound on the drum traction winch with the formation of two equal length traction and traction-distribution of branches and loops, which pass through the guide channels of all centralizers, and is connected to a rope auxiliary winch with hand jam through the pipeline, and at least pull their auxiliary winch on the calculated distances alternately still fix centralizers on the traction distribution branch.

12. The method according to p. 10, characterized in that the centralizers evenly Rastan is fixed on the traction distribution branch traction rope clamp all units move in the direction of pulling of the pipeline through the traction distribution rope on values, equal distance placement of centralizers.

13. The method according to p. 10, characterized in that the centralizers mounted on curved sections of tunnel interfaces plot obstacle and inclined sections of the tunnel, while the promotion of the pipeline to another stationary fixed on the traction distribution branch traction rope clamp they are swapped from the condition of guaranteeing gap between the pulling rope and a protective polymeric pipe or constructed by tunnel - metal casing with Cordova position of the traction rope, and as centralizers on the surface they are freed from the power distribution rope and collected in a trench tray.

14. Device for laying pipe with a protective sheath includes a tapered tip at the end of the jam through the element, the traction mechanism with a traction rope, mounted on the opposite side from the jam through a pipeline, characterized in that it is equipped with centralizers on the traction distribution rope, the tip is made in the form of a cone trailer mechanism with by-pass unit, and a traction mechanism includes trailer with winch, traction traction rope with the formation of traction and traction-distribution of branches, with the ability to commit to the last centralizers, and auxiliary winch, installed by jam through a pipeline to connect its rope to the loop of the traction rope formed of traction and traction distribution branches of the traction rope.

 

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