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Ecological protection system suitable for stone channel region pipeline

A technology for ecological protection and trench area, applied in planting substrates, pipeline laying and maintenance, application, etc., can solve problems such as corrosion of metal pipelines, pipeline damage, etc., achieve reduced impact, continuous and stable protection, and reduce water erosion and subsidence Effect

Active Publication Date: 2020-11-06
国家管网集团重庆天然气管道有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Ecological protection system suitable for stone channel region pipeline

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Embodiment 1

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

[0036] The thickness of the matrix layer 1 is 15cm, and the tamping base number is ≥0.9, which is obtained by mixing the matrix granular material with a weight ratio of 1:1 and gravel, and then mixing it with black locust seeds, and finally laying it; wherein, the black locust seeds The dosage is 15g / m 2The particle diameter of the matrix particle material is 2-3 mm, and it includes 10 parts of bentonite with a particle diameter of 0.01-0.02 mm, 20 parts of peat with a particle diameter of 1-2 mm, and 0.1-0.2 mm of bentonite in parts by weight. 1...

Embodiment 2

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

[0046] The thickness of the matrix layer 1 is 15cm, and the tamping base number is ≥0.9, which is obtained by mixing the matrix granular material with a weight ratio of 1:1 and gravel, and then mixing it with black locust seeds, and finally laying it; wherein, the black locust seeds The dosage is 15g / m 2 The particle diameter of the matrix particle material is 2-3 mm, and it includes 15 parts of bentonite with a particle diameter of 0.01-0.02 mm, 30 parts of peat with a particle diameter of 1-2 mm, and 0.1-0.2 mm of peat in parts by weight. 15...

Embodiment 3

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

[0056] The thickness of the matrix layer 1 is 15cm, and the tamping base number is ≥0.9, which is obtained by mixing the matrix granular material with a weight ratio of 1:1 and gravel, and then mixing it with black locust seeds, and finally laying it; wherein, the black locust seeds The dosage is 15g / m 2 The particle diameter of the matrix particle material is 2-3 mm, and it includes 12 parts of bentonite with a particle diameter of 0.01-0.02 mm, 25 parts of peat with a particle diameter of 1-2 mm, and 0.1-0.2 mm of peat in parts by weight. 12...

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Abstract

The invention relates to the technical field of pipeline protection, and discloses an ecological protection system suitable for a stone channel region pipeline. The ecological protection system comprises a matrix layer, a buffer layer, a transition layer, a root blocking layer and a rock ballast backfill layer which are sequentially arranged from top to bottom, and the pipeline is buried in the rock ballast backfill layer; the matrix layer comprises a matrix particle material and rock ballast; the buffer layer comprises rock ballast, attapulgite, peat, super absorbent resin and polyacrylamide;the transition layer comprises rock ballast and bacillus dregs; and the root blocking layer is prepared from acrylate emulsion, copper sulfate powder, leucaena leucocephala extracting solution and vermiculite. According to the ecological protection system, the comprehensive protection function of a plant system can be utilized, the phenomena of water erosion and collapse after pipeline landfill are reduced, the external impact force and the damage effect of plant root systems on the pipeline are reduced, and therefore the pipeline can be continuously and stably protected under the condition of no management and protection, and the plant survival rate can be increased.

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 channel areas. Background technique [0002] Most of the long-distance natural gas pipeline projects in mountainous areas need excavation and backfilling of pipe trenches, which makes it easy to cause secondary disasters under the action of rainwater, thus endangering the safety of the pipeline and the surrounding people. The secondary disasters caused mainly include: (1) The pipe ditch after burial collapses, forming a water catchment, which causes the pipe ditch to be hollowed out, and the pipeline is exposed and damaged; (2) Under the action of rainwater, the buried pipe ditch collapses, causing the section where 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 deserti...

Claims

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Application Information

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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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