RU2137972C1 - Water-escape structure under embankment - Google Patents

Abstract

FIELD: construction engineering. SUBSTANCE: this structure is used in construction and repair of pipelines, and erection of embankments. Placed along bed of streamlet are lengths of pipes for water passage. Connected to one of pipe lengths by means of welding are perforated vertical pipes which are wrapped in filtering material and closed atop with caps. Water passing pipes are covered with earth for creation of embankment. Gas pipeline which crosses water streamlet is located in embankment. Creation of banking-up of gas pipeline with earth is undertaken for formation of carriage way along gas pipeline route. Freshet water is directed into vertical pipes and branched into pipe lengths for bringing away together with water flowing in streamlet. Application of aforesaid embodiment of structure reduces water saturation of gas pipeline banking-up and enhances its stability. EFFECT: higher efficiency. 1 cl, 3 dwg

Description

 The present invention relates to the laying of main pipelines during their construction and repair and can be used in the construction of culverts under embankments.

 A culvert is known, including rows of car tires located close to one another with the formation of a closed loop.

The rows of tires are connected by rigid load-bearing elements placed at the ends of the rows, pulled together by rods (see copyright certificate N 1719528 Mcl E 01 F 5/00, publ. 03/15/92)
A disadvantage of the known device is that the above culvert contains material-intensive and significant volumes of car tires, which complicates their use in natural conditions. In addition, the connection of tires with rigid elements, for example, in the channel of a stream with a depth less than their diameter, does not have technical meaning, and filling the cavity of tires with hardening material reduces the throughput of the structure.

 A culvert construction under the embankment is known, containing a filter part made of stone and located on a pillow, an insulating layer placed on its surface and channels for water passage (see copyright certificate N 1740528, Mcl. E 01 F 5/00, publ. 15.06.92 )

 The disadvantages of the above culvert, taken as a prototype, should be considered that a high embankment of stone in a multi-strand corridor of pipelines requires a large amount of imported stone, during prolonged operation the pipeline is subject to siltation, contributes to an increase in the level of the water mirror, makes it difficult to cross the passage during flooding, erodes the embankment of gas pipelines creates additional loads on the pipelines and insulation is destroyed.

 The objective of the invention is to preserve insulation, to prevent erosion of the channel part and weakening of the embankment roller, to ensure a straight-through passage, to eliminate the cost of ensuring water passage in the presence of a pipeline laid in the embankment for transporting a medium with a positive temperature.

 The problem is solved in that in the culvert under the embankment containing channels for water passage, a filtering part, an insulating layer, channels for water passage are made in the form of a curved whip of pipes repeating the channel of the stream and passed under the pipeline with subsequent welding of perforated vertical pipes located in the soil and made wrapped with filter material and closed with a removable cover, filled with soil together with the pipeline, while the embankment roller is made over the pipeline, and in places installation of drainage pipes, the height of the bulk soil is made due to the angle of the natural slope of the embankment roll and refilled to a level exceeding the depth of freezing in the area, forming a year-round long-haul passage.

 The problem is also solved by the fact that, as a filter material, for example, non-woven synthetic material is used.

The applicant is unknown from the patent and scientific and technical information with the novelty of the following features of the invention:
- the culvert is made in the form of a curved whip of pipes repeating the channel of the stream;
- a culvert is passed under the pipeline with subsequent welding of perforated vertical pipes located in the ground and made wrapped with filter material and closed with a removable cover;
- filled with soil together with the pipeline, while the embankment roller is made over the pipeline;
- in places of installation of drainage pipes, the height of the bulk soil is made due to the angle of the natural slope of the embankment roller and added to a level exceeding the depth of freezing in the area, forming a year-round long-distance passage;
- as a filter material used, for example, non-woven synthetic material.

 Based on the foregoing, we believe that the invention is new.

 These essential features are not obvious to the average person skilled in the art, and therefore meets the criterion of inventive step.

 The invention can be easily implemented in the construction and repair of sections of the gas pipeline during the construction of culverts under embankments. In connection with the foregoing, we believe that the invention meets the criterion of "Industrial applicability".

 The layout of the culvert under the embankment is shown in FIG. 16.

 In FIG. 1 shows a culvert and three pipelines before embankment.

 In FIG. 2 shows transverse sections A-A - the joint of culverts and drainage pipes.

 In FIG. 3 shows sections along the B-B and C-C headings.

 In FIG. 4 - 5 show the profile of the stream and the water passage under the working pipe to the embankment.

 In FIG. 6 shows a culvert after embankment.

 The culvert channel 1 with a rigid head 2 is laid under the gas pipelines 3 in the channel of the stream 4, along the top of the channel 1 a dry pipe 5 is laid, in which perforated pipes 6 for flood drainage water are vertically welded from the earth's surface, made by wrapped filter material, for example, non-woven synthetic material 7, closed by a lid 8 and designed to prevent the ingress of foreign objects and filled with soil 9 with the formation of a roller above the pipe 3 and forming a long passage (not shown).

 The culvert is mounted as follows.

 Previously, along the stream 4, the calculated number of culverts 1 of the required length is welded in a whip, which, using pipe-laying equipment (not shown in the diagram), is laid in the channel of the stream 4.

 Then, in a similar manner, a dry pipe 5 is mounted on top of the channels 1, after which all channels 1 are connected at both ends by heads 2. The required number of vertical perforated pipes 6 are welded into the mounted and laid in the creek 5 pipe, onto which filter material is wound, for example, non-woven synthetic material 7, and the upper part of the pipe 6 is closed with a cover 8. Then, casing with soil 9 culverts is carried out using an excavator (not shown in the drawing) and when filling the embankment of the upper generatrix of the gas pipeline 3 backfill the culvert and the gas pipeline embankment are performed by forming a long-haul passage using a bulldozer. Tamping along the highway drive is carried out by multiple runs of wheeled or tracked vehicles (not shown in the diagram).

 Repair of open sections using the described culvert allows them to be brought into compliance with the requirements of SNiP 02.05.06-85 for underground pipelines without stopping and bleeding gas.

 In addition, during repair and new construction, the costs of deepening the pipeline are eliminated, the set of curves is reduced, and the likelihood of impact from rupture of pieces of metal during the destruction of one of the bare pipelines operating in a multi-thread corridor is also reduced.

 The method is implemented and successfully established itself in operation on the gas pipelines Ukhta-Torzhok 1, II, III N. km 635.2 across the river. Libeng Nyuksenskoye MPI, Severgazprom Enterprises.

 The claimed invention in comparison with the prototype allows you to maintain insulation, prevents erosion of the channel and the weakening of the embankment, provides long-distance passage, eliminates the cost of ensuring the passage of water in the presence of a pipe laid in the embankment for transporting a medium with a positive temperature.

Claims (2)

 1. A culvert under the embankment containing channels for passing water, a filtering part, characterized in that the channels for passing water are made in the form of a curved whip of pipes repeating the channel of the stream and laid under the pipeline, and the filtering part is made in the form of perforated vertical pipes wrapped filtering material, closed with a removable cover and connected to a curvilinear whip of pipes for passing drainage flood waters, while the filtering part, channels for passing water, the pipeline is filled up bubbled ground, the conduit is formed over roller embankment.  2. The culvert according to claim 1, characterized in that, for example, non-woven synthetic material is used as a filter material.

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