CN217583407U - Underground embedding structure of natural gas pipeline - Google Patents
Underground embedding structure of natural gas pipeline Download PDFInfo
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- CN217583407U CN217583407U CN202221615818.0U CN202221615818U CN217583407U CN 217583407 U CN217583407 U CN 217583407U CN 202221615818 U CN202221615818 U CN 202221615818U CN 217583407 U CN217583407 U CN 217583407U
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Abstract
The utility model discloses an underground embedding structure of a natural gas pipeline, which comprises an installation ditch, a concrete bottom plate, a fine sand layer and a sand-included stone layer; the concrete bottom plate, the fine sand layer and the sand inclusion stone soil layer are sequentially arranged in the mounting ditch from bottom to top; and a natural gas pipeline is buried in the fine sandy soil. The utility model has the advantages of: the utility model has simple structure and easy realization, effectively prevents the natural gas pipeline from being broken due to uneven settlement, and further effectively prevents gas leakage and explosion; the safety of the operation of the gas pipeline within the designed service life is ensured.
Description
The technical field is as follows:
the utility model relates to a bury structure underground, in particular to natural gas line's underground structure underground.
Background art:
the natural gas pipeline is a pipeline for conveying natural gas, and the natural gas is conveyed to an urban gas distribution center or an industrial enterprise user from an exploitation place or a processing plant; at present, a natural gas pipeline is generally buried underground, an installation ditch for installing the natural gas pipeline is dug on the ground usually, then the natural gas pipeline is installed in the installation ditch, and finally, artificial backfill soil is adopted for compacting; however, the following problems exist in the above manner: when the soil for burying the natural gas pipeline is different, the settlement and subsidence amount of the natural gas pipeline are different, and the natural gas pipeline is easy to break under the longitudinal shearing force; when high-corrosion soil such as saline-alkali soil and the like is encountered, the natural gas pipeline is easy to corrode; above two kinds of circumstances all can reduce natural gas line's life, all can cause the gas to leak simultaneously, explode even, have very big potential safety hazard.
The utility model has the following contents:
an object of the utility model is to provide a simple structure, and the underground structure of burying of natural gas line safe in utilization.
The utility model discloses by following technical scheme implement: the patent aims at providing an underground embedding structure of a natural gas pipeline, which comprises an installation ditch, a concrete bottom plate, a fine sand layer and a sand-included stone layer; the concrete bottom plate, the fine sand layer and the sand inclusion stone soil layer are sequentially arranged in the mounting ditch from bottom to top; and a natural gas pipeline is buried in the fine sandy soil.
Further, concrete side plates which are perpendicular to the concrete bottom plate are fixed on two sides of the concrete bottom plate; the concrete side plates are positioned in the fine sand layers on two sides of the natural gas pipeline; the concrete side plate is arranged along the length direction of the natural gas pipeline.
Furthermore, reinforcing steel bar meshes are arranged in the concrete bottom plate and the concrete side plates.
Furthermore, the shape of the longitudinal section of the mounting groove is an inverted isosceles trapezoid.
The utility model has the advantages that: 1. the utility model has simple structure and easy realization, supports the natural gas pipeline by arranging the concrete bottom plate, further reduces the damage of longitudinal shearing force to the natural gas pipeline, further effectively prevents the natural gas pipeline from being broken due to uneven settlement, and further effectively prevents gas leakage and explosion; 2. meanwhile, the natural gas pipeline is buried in the fine sand layer, the fine sand layer can effectively prevent high-corrosion soil such as saline-alkali soil from contacting the natural gas pipeline to corrode the natural gas pipeline, and the safety of the gas pipeline in the design service life is guaranteed.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
The concrete sand-filled concrete comprises an installation ditch 1, a concrete bottom plate 2, a fine sand layer 3, a sand-filled stone soil layer 4, a natural gas pipeline 5, a concrete side plate 6 and a reinforcing mesh 7.
The specific implementation mode is as follows:
as shown in fig. 1, an underground burying structure of a natural gas pipeline comprises an installation ditch 1, a concrete bottom plate 2, a fine sand layer 3 and a sand inclusion stone soil layer 4; the longitudinal section of the mounting groove 1 is in the shape of an inverted isosceles trapezoid; the concrete bottom plate 2, the fine sand layer 3 and the sand-included stone soil layer 4 are sequentially arranged in the mounting ditch 1 from bottom to top; natural gas line 5 has been buried underground in the fine sand soil, and the fine sand plays effectual protection to natural gas line 5, prevents that hard thing from causing the damage to natural gas line 5 to prevent high corrosive soil nature such as saline and alkaline land and natural gas line 5 contact, corrode it, ensure that gas pipeline moves safety in the design service life.
Fixing concrete side plates 6 which are perpendicular to the concrete bottom plate 2 at two sides of the concrete bottom plate for preventing the soil at the two sides from sliding down to extrude the natural gas pipeline 5; the concrete side plates 6 are positioned in the fine sand layers 3 on two sides of the natural gas pipeline 5; the concrete side plate 6 is arranged along the length direction of the natural gas pipeline 5; and reinforcing meshes 7 are arranged in the concrete bottom plate 2 and the concrete side plate 6, so that the shearing resistance of the concrete bottom plate 2 and the concrete side plate 6 is improved.
The utility model discloses simple structure easily realizes, supports natural gas line 5 through setting up concrete bottom plate 2, and then reduces the destruction of longitudinal shear force to natural gas line 5, and then effectual preventing is because of the natural gas line 5 fracture that the non-uniform settlement causes, and then the effectual gas that prevents leaks and explodes.
The construction process comprises the following steps:
1. and measuring and setting out, determining a position line and an elevation buried in the natural gas pipeline 5, and marking the starting point terminal point, the passing point and the position of the pipeline well on the field.
2. And (4) finishing and flattening the field, and timely clearing and transporting obstacles along the pipeline and around the pipeline.
3. And excavating the mounting ditch 1 to a reasonable depth according to the design drawing requirements, and repairing and leveling the bottom of the mounting ditch 1 and tamping.
4. C30 concrete bottom plates 2 and concrete side plates 6 with the thickness of 20CM are cast in situ at the bottoms of the mounting ditches 1, and threaded reinforcing meshes 7 with the vertical and horizontal intervals of 10CM and phi 8 are arranged in the concrete bottom plates 2 and the concrete side plates 6.
5. The concrete sets and reaches a strength of 30CM of fine sand backing up.
6. And laying a natural gas pipeline 5 on the fine sand.
7. 50CM of fine sand was backfilled and tamped.
8. And (5) filling sand and stones on the ground by the fine sand.
9. The pressure test and the tightness test of the natural gas pipe 5 were performed.
10. And (5) purging the natural gas pipeline 5 after the pressure test and the tightness test are qualified, and finishing the construction of the natural gas pipeline 5 after purging.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An underground embedding structure of a natural gas pipeline is characterized by comprising an installation ditch, a concrete bottom plate, a fine sand layer and a sand-included stone soil layer;
the concrete bottom plate, the fine sand layer and the sand inclusion stone soil layer are sequentially arranged in the mounting ditch from bottom to top; and a natural gas pipeline is buried in the fine sand layer.
2. An underground structure for a natural gas pipeline according to claim 1, wherein concrete side plates perpendicular to the concrete bottom plate are fixed to both sides of the concrete bottom plate; the concrete side plates are positioned in the fine sand layers on two sides of the natural gas pipeline; the concrete side plate is arranged along the length direction of the natural gas pipeline.
3. An underground structure for a natural gas pipeline according to claim 2, wherein reinforcing meshes are provided in said concrete bottom plate and said concrete side plates.
4. An underground burying structure for a natural gas pipeline according to any one of claims 1 to 3, wherein said mounting grooves have a longitudinal section in the shape of an inverted isosceles trapezoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221615818.0U CN217583407U (en) | 2022-06-24 | 2022-06-24 | Underground embedding structure of natural gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221615818.0U CN217583407U (en) | 2022-06-24 | 2022-06-24 | Underground embedding structure of natural gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217583407U true CN217583407U (en) | 2022-10-14 |
Family
ID=83531703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221615818.0U Active CN217583407U (en) | 2022-06-24 | 2022-06-24 | Underground embedding structure of natural gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217583407U (en) |
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2022
- 2022-06-24 CN CN202221615818.0U patent/CN217583407U/en active Active
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