An ecological protection system suitable for pipelines in stone trenches

A technology for ecological protection and channel area, applied in the fields of planting substrate, pipeline laying and maintenance, application, etc., can solve problems such as corrosion of metal pipelines, pipeline damage, etc., to reduce damage, maintain stable protection, and reduce water erosion and collapse. Effect

Active Publication Date: 2022-07-22
国家管网集团重庆天然气管道有限责任公司
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  • Claims
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Problems solved by technology

[0003] At present, the means of planting vegetation on the channel area after backfilling is usually adopted in the existing technology. Although this can play a role in ecological protection of the pipeline to a certain extent, it cannot avoid the damage caused by the vegetation itself to the pipeline. The damage mainly includes: (1) the secretions of the root system of the surface vegetation adhere to the surface of the pipeline, which has a certain corrosion effect on the metal pipeline; (2) the root system of the surface vegetation will gradually grow and penetrate at the joint of the pipeline, thereby causing damage to the pipeline

Method used

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  • An ecological protection system suitable for pipelines in stone trenches

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Effect test

Embodiment 1

[0035] An ecological protection system suitable for pipelines in stony trench areas, such as figure 1 As shown, it includes a matrix layer 1, a buffer layer 2, a transition layer 3, a root resistance layer 4 and a gravel backfill layer 5 sequentially arranged from top to bottom, and the pipeline 6 is buried in the gravel backfill layer 5; wherein, the pipeline 6 adopts The X-60 low alloy steel pipe of DN300 is coated with anti-corrosion layer, and the length is 2m.

[0036] The thickness of the matrix layer 1 is 15cm, and the number of tamped bases is ≥0.9, which is obtained by mixing the matrix particulate material with a weight ratio of 1:1 and the gravel, and then mixing it with the seeds of Robinia pseudoacacia, and finally laying them; The dosage is 15g / m 2The particle size of the matrix particulate material is 2 to 3 mm, and in parts by weight, it includes 10 parts of bentonite with a particle diameter of 0.01 to 0.02 mm, 20 parts of peat with a particle diameter of 1 t...

Embodiment 2

[0045] An ecological protection system suitable for pipelines in stony trench areas, such as figure 1 As shown in the figure, it includes a matrix layer 1, a buffer layer 2, a transition layer 3, a root resistance layer 4 and a gravel backfill layer 5 sequentially arranged from top to bottom, and the pipeline 6 is buried in the gravel backfill layer 5; wherein, the pipeline 6 adopts The X-60 low alloy steel pipe of DN300 is coated with anti-corrosion layer, and the length is 2m.

[0046] The thickness of the matrix layer 1 is 15cm, and the number of tamping bases is ≥0.9, which is obtained by mixing the matrix particulate material with a weight ratio of 1:1 and the gravel evenly, then mixing it with the seeds of Robinia pseudoacacia, and finally laying them; The dosage is 15g / m 2 The particle size of the matrix particulate material is 2 to 3 mm, and in parts by weight, it includes 15 parts of bentonite with a particle diameter of 0.01 to 0.02 mm, 30 parts of peat with a parti...

Embodiment 3

[0055] An ecological protection system suitable for pipelines in stony trench areas, such as figure 1 As shown in the figure, it includes a matrix layer 1, a buffer layer 2, a transition layer 3, a root resistance layer 4 and a gravel backfill layer 5 sequentially arranged from top to bottom, and the pipeline 6 is buried in the gravel backfill layer 5; wherein, the pipeline 6 adopts The X-60 low alloy steel pipe of DN300 is coated with anti-corrosion layer, and the length is 2m.

[0056] The thickness of the matrix layer 1 is 15cm, and the number of tamping bases is ≥0.9, which is obtained by mixing the matrix particulate material with a weight ratio of 1:1 and the gravel evenly, then mixing it with the seeds of Robinia pseudoacacia, and finally laying them; The dosage is 15g / m 2 The particle size of the matrix particulate material is 2 to 3 mm, and in parts by weight, it includes 12 parts of bentonite with a particle diameter of 0.01 to 0.02 mm, 25 parts of peat with a parti...

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Abstract

The invention discloses the technical field of pipeline protection, and discloses an ecological protection system suitable for pipelines in stone channel areas, comprising a matrix layer, a buffer layer, a transition layer, a root resistance layer and a gravel layer arranged in sequence from top to bottom A backfill layer, wherein the pipeline is buried in the gravel backfill layer; wherein, the matrix layer includes matrix particulate material and gravel; the buffer layer includes gravel, attapulgite, peat, superabsorbent resin and polypropylene amide; the transition layer includes gravel and bacillus slag; the root resistance layer includes acrylate emulsion, copper sulfate powder, leucaea extract and vermiculite; the ecological protection system can utilize the comprehensive protection function of the plant system, It can reduce the water erosion and collapse phenomenon after the pipeline is buried, reduce the external impact force and the damage of plant roots to the pipeline, so as to continuously and stably protect the pipeline under the condition of no pipe protection, and can also improve the survival rate of plants.

Description

technical field [0001] The invention relates to the technical field of pipeline protection, in particular to an ecological protection system suitable for pipelines in stone trench areas. Background technique [0002] Most of the long-distance natural gas pipeline projects in mountainous areas require the excavation and backfilling of pipeline trenches, which makes it easy to cause secondary disasters under the action of rainwater, thus endangering the safety of pipelines and surrounding people. The secondary disasters caused mainly include: (1) The buried pipe ditch collapses, forming a water catchment, which leads to the hollowing of the pipe trench and the exposed pipeline damage; (2) Under the action of rainwater, the buried pipe ditch collapses, causing the section through which the pipeline passes to collapse; ( 3) Surface vegetation is destroyed, and the recovery and growth cycle is long, which will cause ecological damage, aggravate desertification or rocky desertific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/11A01G24/46
CPCF16L1/11A01G24/46
Inventor 彭波王磊夏敏罗志强赵志超陈福林敖波蔡强岳三琪季超
Owner 国家管网集团重庆天然气管道有限责任公司
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