CN107576659B - Method for detecting extrusion performance of plant root system on pipeline anticorrosive coating - Google Patents

Method for detecting extrusion performance of plant root system on pipeline anticorrosive coating Download PDF

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CN107576659B
CN107576659B CN201610526113.4A CN201610526113A CN107576659B CN 107576659 B CN107576659 B CN 107576659B CN 201610526113 A CN201610526113 A CN 201610526113A CN 107576659 B CN107576659 B CN 107576659B
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root system
pipeline
root
plant
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CN107576659A (en
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张文艳
罗敏
侯胜
熊娟
段行知
周世玉
赵红娱
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Petrochina Co Ltd
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Abstract

The invention discloses a method for detecting the extrusion performance of a plant root system on an anticorrosive coating of a pipeline, and belongs to the field of pipeline corrosion prevention. The method comprises the following steps: and pre-selecting the target plant, digging a trench in an area 0.8-1.3m away from the trunk of the target plant, and exposing the root system of the target plant in the trench. And selecting a straight and undamaged root system as a target root system from the root system, and intercepting two pipelines as target pipelines. And clamping the target root system by the two target pipelines, then placing the micro root canal on the interface of the target pipeline and the target root system, and binding the target pipeline, the target root system and the micro root canal together. And (5) backfilling the trench, and periodically inserting the linear scanning head of the ecological monitoring system of the root system of the micro-root pipe into the micro-root pipe for scanning after the target root system continues to grow for a preset time to obtain a scanning image. And analyzing the scanned image by using a root system analyzer to acquire parameter information representing the morphological change of the target root system and the morphological change of the pipeline anticorrosive coating so as to determine the extrusion performance of the plant root system to the pipeline anticorrosive coating.

Description

Method for detecting extrusion performance of plant root system on pipeline anticorrosive coating
Technical Field
The invention relates to the field of pipeline corrosion prevention, in particular to a method for detecting extrusion performance of a plant root system on a pipeline anticorrosive coating.
Background
With the continuous expansion of the scale of pipeline construction in China, the contradiction between pipeline laying and plant planting along the line is inevitable. When the pipeline is used, the outer wall of the pipeline is required to be coated with the anticorrosive coating, and the damage of the plant root system to the pipeline can be accurately evaluated by researching the influence degree of the deep-root plant root system on the pipeline anticorrosive coating, particularly the extrusion performance of the pipeline anticorrosive coating, so that the pipeline safety protection method has important significance for protecting pipeline safety, reducing pipeline construction burden and protecting local economy and resources. As the plant root system grows in the soil black box medium, the growth and distribution of the plant root system have contingency and unpredictability, and great inconvenience is brought to the research on the extrusion performance of the pipeline anticorrosive coating, so that a simple and feasible method for detecting the extrusion performance of the plant root system on the pipeline anticorrosive coating is needed.
The prior art generally adopts the following method to detect the extrusion performance of the plant root system to the pipeline anticorrosive coating: the method comprises the steps of selecting a plant root system to be observed in an area where a pipeline is located, exposing the plant root system through one-time excavation, and then visually observing growth, attachment and extrusion conditions of the plant root system on an anticorrosive coating of the pipeline.
However, the inventors found that the prior art has at least the following technical problems:
the extrusion performance of the plant root system on the pipeline anticorrosive coating is determined by the prior art, the damage to the surrounding environment of the pipeline is easily caused, and the long-term and continuous observation and research are difficult to realize only by the qualitative description of the extrusion performance of the plant root system on the pipeline anticorrosive coating.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a method for detecting the extrusion performance of a plant root system on a pipeline anticorrosive coating. The specific technical scheme is as follows:
a method for detecting the extrusion performance of a plant root system on a pipeline anticorrosive coating comprises the following steps:
a, pre-selecting a target plant, digging a trench in a region which is 0.8-1.3m away from the main trunk of the target plant by taking the target plant as a center, and exposing the root system of the target plant in the trench;
b, selecting a straight and undamaged living root system from the root systems exposed in the trench as a target root system to be detected, and intercepting two pipelines with preset lengths as target pipelines to be detected;
c, enabling the two target pipelines to clamp the target root system in the trench, then placing a micro root pipe on an interface between the target pipeline and the target root system along the growth direction of the target root system, and then binding the target pipeline, the target root system and the micro root pipe together;
d, backfilling the trench, and periodically inserting a linear scanning head of a micro root canal root system ecological monitoring system into the micro root canal to scan the target root system and the target pipeline after the target root system continues to grow for a first preset time to obtain a scanning image;
and e, analyzing the scanning image by using a root system analyzer to obtain parameter information representing the morphological change of the target root system and the morphological change of the pipeline anticorrosive coating, and further determining the extrusion performance of the plant root system on the pipeline anticorrosive coating.
Specifically, it is preferable to remove plants within 2 to 4m from the target plant before the excavation is performed.
Specifically, the trench is preferably rectangular, and has a length of 1.5 to 2.5m, a width of 1.0 to 1.5m, and a depth of 0.8 to 1.2 m.
Specifically, the diameter of the target root system is 2-10cm, and the length is more than or equal to 80 cm;
the length of the target pipeline is 70-80cm, and the anticorrosive layer on the target pipeline is a 3PE anticorrosive layer;
the external diameter of the micro root canal is 7-10cm, and the length is 0.8-1.2 m.
Specifically, preferably, in the process of backfilling the trench, the trench is backfilled according to the level of the excavated soil in the trench, and the soil is tamped layer by layer.
Specifically, preferably, the first predetermined time is 3 to 4 months.
As an embodiment, when the target root system and the target pipe are scanned by the linear scanning head, the scanning is performed at the same position every second predetermined time.
Specifically, preferably, the second predetermined time is 20 to 30 days.
Further, as another embodiment, the linear scanning head is moved within the micro-tube every time scanning is performed with the linear scanning head, the scanning being performed at different positions.
Specifically, the parameter information characterizing the morphological change of the target root system includes: the deformation amount of the target root system, the diameter of the target root system, the number of the newly grown branch root systems on the target root system and the distribution position of the newly grown branch root systems on the target root system;
the parameter information for representing the form change of the anticorrosive coating of the pipeline comprises: the deformation amount of the pipeline anticorrosive coating.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the method provided by the embodiment of the invention, the extrusion performance of the plant root system on the pipeline anticorrosive coating is continuously and dynamically detected underground by using the micro root window technology, the surrounding environment of the pipeline is not damaged, qualitative and quantitative analysis can be simultaneously realized on the extrusion performance of the plant root system on the pipeline anticorrosive coating by using the scanning image obtained by the micro root system ecological monitoring system, and meanwhile, the long-term and continuity of the analysis are also realized. Therefore, the method provided by the embodiment of the invention can nondestructively detect the extrusion process of the plant root system to the pipeline anticorrosive coating in situ, is simple and convenient to implement, has real and reliable experimental data, is convenient to extract, and has important significance for accurately evaluating the damage of the plant root system to the pipeline.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a binding structure composed of a target pipe, a target root system, a micro root canal, and an iron wire according to an embodiment of the present invention.
The reference numerals denote:
1 a target pipeline, and (b) a target pipeline,
2 the root system of the target is processed,
3 the micro root canal of the root canal,
4 iron wires.
Detailed Description
Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art. In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the invention provides a method for detecting the extrusion performance of a plant root system on a pipeline anticorrosive coating, which comprises the following steps:
step 101, pre-selecting a target plant, digging a trench in an area 0.8-1.3m away from the main trunk of the target plant by taking the target plant as a center, and exposing the root system of the target plant in the trench.
102, selecting a straight and undamaged living root system from the root systems exposed in the trench as a target root system to be detected, and intercepting two pipelines with preset lengths as target pipelines to be detected.
And 103, clamping the target root system by the two target pipelines in the trench, placing the micro root canal on an interface between the target pipeline and the target root system along the growth direction of the target root system, and then binding the target pipeline, the target root system and the micro root canal together.
And step 104, backfilling the trench, and periodically inserting a linear scanning head of the micro root system ecological monitoring system into the micro root pipe to scan the target root system and the target pipeline after the target root system continues to grow for a first preset time to obtain a scanning image.
And 105, analyzing the scanned image by using a root system analyzer to obtain parameter information representing the morphological change of the target root system and the morphological change of the pipeline anticorrosive coating, and further determining the extrusion performance of the plant root system on the pipeline anticorrosive coating.
According to the method provided by the embodiment of the invention, the extrusion performance of the plant root system on the pipeline anticorrosive coating is continuously and dynamically detected underground by using the micro root window technology, the surrounding environment of the pipeline is not damaged, qualitative and quantitative analysis can be simultaneously realized on the extrusion performance of the plant root system on the pipeline anticorrosive coating by using the scanning image obtained by the micro root system ecological monitoring system, and meanwhile, the long-term and continuity of the analysis are also realized. Therefore, the method provided by the embodiment of the invention can nondestructively detect the extrusion process of the plant root system to the pipeline anticorrosive coating in situ, is simple and convenient to implement, has real and reliable experimental data, is convenient to extract, and has important significance for accurately evaluating the damage of the plant root system to the pipeline.
Specifically, in step 101 provided by the embodiment of the present invention, the target plant to be detected may be preselected in the field, and the root system of the target plant may be studied as described above. In order to obtain a root system of the target plant as completely as possible and to have as little adverse effect on the surrounding environment as possible, the trench needs to be dug in an area which is 0.8-1.3m (e.g. 0.9m, 1m, 1.1m, 1.2m, etc.) away from the main stem of the target plant, preferably 1m, with the root system of the target plant exposed in the trench. It will be appreciated that the trench is preferably located to one side of the target plant and that the exposed root system is only part of the root system of the target plant. In the process of excavating the trench, it is preferable to perform excavation along the contour line direction in order to ensure economy and safety of the excavation process.
Furthermore, in order to facilitate excavation, the excavated soil is conveniently arranged according to the crude oil level so as to facilitate the backfilling of the soil into the trench according to the original level during the subsequent backfilling, and plants (such as miscellaneous irrigation and the like) which are 2-4m away from the target plant, such as 2m, 2.5m, 3m and 3.5m away from the target plant, are removed before excavation. Based on the above, the excavated soil is preferably stacked according to the original level thereof, so as to be conveniently backfilled according to the original level. Meanwhile, care should be taken during the excavation process to cut off the root system of the target plant as little as possible.
Specifically, in order to facilitate excavation, it is preferable to provide a trench having a rectangular parallelepiped shape, and to obtain a root system of the target plant completely and to have no adverse effect on the surrounding environment as much as possible, the trench having the following specifications: the length is 1.5-2.5m, the width is 1.0-1.5m, and the depth is 0.8-1.2 m. For example, the moat may have a length of 1.5m, 1.8m, 2m, 2.2m, 2.5m, etc., a width of 1.0m, 1.2m, 1.3m, 1.5m, etc., and a depth of 0.8m, 1.0m, 1.1m, 1.2m, etc.
Specifically, in step 102 provided in the embodiment of the present invention, a straight undamaged living root system is selected from the root systems exposed in the trench as a target root system to be detected. The target root system should be straight, i.e., similar to a straight line, so that when it is clamped between the target pipes, the side wall of the target root system is in contact with the side wall of the target pipe as completely as possible, and the target root system is not damaged by excavation, and has good activity so that it can smoothly grow on the pipe anticorrosive coating after backfilling soil. And, not limited to sequentially intercepting two pipes of a predetermined length as a target pipe to be detected, it can be understood that the target pipe is coated with an anticorrosive layer.
Preferably, in order to ensure that the target root system can be firmly clamped in the target pipeline, the diameter of the target root system is 2-10cm, and the length is more than or equal to 80cm, for example, the diameter of the target root system can be 2cm, 4cm, 6cm, 8cm, 10cm and the like. On this basis, the target pipe is 70-80cm in length, for example 70cm, 74cm, 76cm, 78cm, 80cm, etc., in order to fit the target root system and trench to be excavated.
The method provided by the embodiment of the invention is not only suitable for detecting the extrusion performance of the plant root system on the common pipeline anticorrosive coating, but also particularly suitable for detecting the extrusion performance of the 3PE anticorrosive coating, and the method fills the gap of the prior art in the aspect of detecting the extrusion performance of the 3PE anticorrosive coating by the plant, and has important significance.
In step 103 provided by the embodiment of the present invention, the target root system is clamped by the two target pipelines in the trench, so that the target root system is in close contact with the target pipeline in the growth direction, and the influence of the target root system on the extrusion performance of the pipeline anticorrosive coating is comprehensively examined. And then placing the micro root canal on an interface between the target pipeline and the target root system along the growth direction of the target root system, and then binding the target pipeline, the target root system and the micro root canal together. First, it should be understood by those skilled in the art that the micro root canal is a transparent resin tube, which is common in the art and is generally applied to the micro root window technique, which is also called micro root window tube, and in the embodiment of the present invention, it mainly provides a scanning space and a scanning environment for the linear scanning head of the micro root canal root system ecology monitoring system, and the embodiment of the present invention is not limited thereto in more detail. Secondly, in the embodiment of the present invention, in order to ensure that the growth condition of the target root system on the target pipe can be accurately obtained in the subsequent scanning, the micro-root pipe needs to be placed on the interface between the target pipe and the target root system along the growth direction of the target root system (the interface is an interface formed by the target pipe and the target root system, and on the interface, the micro-root pipe is in contact with the target pipe and the target root system at the same time, and the extrusion condition of the target root system on the target pipe can be accurately and clearly obtained when the scanning head extends into the interface).
In order to prevent the entire observation unit including the micro root tube, the target root system, and the target pipe from loosening when buried under the ground for a long period of time and to have a certain volume expansion space without affecting the growth of the target root system as much as possible, it is preferable to bind the micro root tube, the target root system, and the target pipe together using a steel wire, an iron wire (e.g., 5 gauge iron wire), or the like. By way of example, fig. 1 shows a desired binding structure consisting of a target pipe 1, a target root system 2, a micro-root canal 3, and iron wire 4.
Because follow-up need backfill the soil to the ditch in, in order to avoid getting into soil in the little root canal and influence the scanning effect, when little root canal is buried in the underground, need seal the mouth of pipe on the little root canal, for example can adopt supporting stopper to stop up the mouth of pipe, perhaps use plastic film to wrap up the mouth of pipe etc.. And when carrying out the scanning operation, take off the soil of pipe orifice annex on the little root canal gently, make its upper pipe orifice expose, open the stopper this moment or loosen plastic film, make the pipe orifice open can.
Furthermore, in order to completely obtain the extrusion condition of the target root system on the pipeline anticorrosive coating, the outer diameter of the micro root pipe is 7-10cm, and the length of the micro root pipe is 0.8-1.2 m. For example, the micro-root canal may have an outer diameter of 7cm, 8cm, 9cm, 10cm, etc., and a length of 0.8m, 0.9m, 1.0m, 1.1m, 1.2m, etc.
In step 104 provided by the embodiment of the present invention, after the target root system continues to grow for the first predetermined time by backfilling the trench, the linear scanning head of the ecological monitoring system for the root system of the micro-root tube is periodically inserted into the micro-root tube to scan the target root system and the target pipeline, so as to obtain the scanning image. On the first hand, when the trench is backfilled, the trench is backfilled according to the original level of excavated soil, and the soil is tamped layer by layer, so that the environment of the target root system during continuous growth after backfilling is basically consistent with that during non-excavation, the growth state is not influenced, and the detection accuracy is further ensured. In a second aspect, the objective is to make the target root system resume growing when the target root system continues to grow for the first predetermined time, and at the same time make the target root system squeeze both of the two target pipelines, and research finds that, in general, the first predetermined time is 3-4 months, for example, 3 months or 4 months, the objective can be achieved. Third, the embodiment of the present invention performs the scanning operation by inserting the linear scanning head of the micro root canal ecology monitoring system into the micro root canal, and it is understood that the micro root canal ecology monitoring system is common in the art, and the embodiment of the present invention is not limited thereto. For example, a commercially available plant root growth detection system, model C1-600, may be selected for the scanning operation. Simultaneously, all set a linear scanning head in every little root canal root system ecological monitoring system, it can carry out the scanning operation and transmit the scanning image who obtains to outside collector. For example, the linear scanning head may be a commercially available high resolution cylindrical CCD linear scanning head.
In scanning the target root system and the target pipe with the linear scanning head, as a first embodiment, scanning is performed at the same position every second predetermined time, which is 20 to 30 days, for example, 20 days, 25 days, 30 days, or the like. By regularly scanning the same positions of the target root system and the target pipeline, a scanning image of the target root system on the extrusion condition of the target pipeline at the same position can be obtained, so that long-term continuous dynamic monitoring is realized. As a second embodiment, the linear scanning head is moved within the micro-tube to scan at different positions each time scanning is performed with the linear scanning head. Through scanning different positions of the target root system and the target pipeline, macroscopic display can be given to the overall situation of the target pipeline extrusion situation through the target root system, and the accidental performance of the detection result is avoided.
In step 105 provided by the embodiment of the present invention, a root analyzer is used to analyze the scanned image, and parameter information representing morphological changes of the target root system and morphological changes of the pipeline anticorrosive coating is obtained, so as to determine the extrusion performance of the plant root system on the pipeline anticorrosive coating. It is understood that a root system analyzer is commonly known in the art, and may be understood as a computer equipped with root system analysis software, for example, commercially available WinRZO Tron MF2012 type root system analysis software may be used to implement the present invention. The scanning image collected by the micro root canal root system ecological monitoring system can be analyzed in real time by using the root system analyzer, so that parameter information for representing the morphological change of a target root system and representing the morphological change of a pipeline anticorrosive coating can be obtained from the scanning image, and the visual detection of the extrusion performance of the plant root system on the pipeline anticorrosive coating can be realized. Specifically, in order to obtain accurate and comprehensive information, the respective scanned images at the same position at different times may be analyzed, and the respective scanned images at different positions at the same time may also be analyzed.
As described above, the scanned image can be converted into visual data information by professional root system analysis software, and specifically, the parameter information representing the morphological change of the target root system includes: the deformation amount of the target root system, the diameter of the target root system, the number and the distribution position of the branch root systems newly grown on the target root system; the parameter information for representing the form change of the anticorrosive coating of the pipeline comprises: deformation amount of the pipeline anticorrosive coating.
The present invention will be further described below by way of specific examples.
In the following examples, those whose operations are not subject to the conditions indicated, are carried out according to the conventional conditions or conditions recommended by the manufacturer. The raw materials are conventional products which can be obtained commercially by manufacturers and specifications.
Example 1
In the embodiment, the extrusion performance of the 3PE anticorrosive layer of the pipeline is detected by using the root system of the Huangge tree in a certain gas transmission management station in Yibin City of Sichuan province, wherein the detection test site is located in Jiangan county of Yibin City of Sichuan province, the test plant is 25-year-old Huangge tree, the average height is 8.6m, the breast diameter is 48.41cm, and the crown width is 12.3m multiplied by 11.5 m. The detection test is carried out in 12 months of 2014, 1 yellow kudzu tree to be detected is selected as a target plant in a gas transmission management station, the miscellaneous irrigation in a range of 3m is removed, a trench is dug in a position 1m away from the basic part by taking the target plant as the center, and the length, the width and the depth of the trench are respectively 2m, 1.25m and 1.8 m. The excavated soil is stacked according to the original soil level, and the root system of the target plant is cut as little as possible in the excavation process. In the trench, 1 straight living root system which is not damaged by the excavation process and has a diameter of 4cm and a length of more than 80cm is selected as a target root system. The method comprises the following steps of taking 2 common gas transmission pipelines (with a complete 3PE anticorrosive coating) with the diameter of 159cm and the length of 80cm as target pipelines, clamping a target root system in the middle, placing micro root canals with the outer diameter of 7.2cm and the length of 1.0m on a common interface of the target pipelines and the target root system, binding the target pipelines, the target root system and the micro root canals together by using No. 5 iron wires, and wrapping upper pipe orifices of the micro root canals by using a plastic film. And sequentially backfilling the trench from deep to shallow according to the original structural level of the soil, and tamping layer by layer. After the root system of the target plant grows for 4 months, the root system growth around the micro root canal is restored to the original state, a scanning image of the growth state of the target root system on the target pipeline is obtained by using a high-resolution cylindrical CCD linear scanning head in a CI-600 type micro root canal root system ecological monitoring system for the target root system every 30 days (in each scanning, soil at the top of the micro root canal needs to be scraped off, so that the mouth of the micro root canal is exposed and a plastic film bound on the micro root canal is removed). And finally, analyzing the image by utilizing WinRZO Tron MF2012 type root system analysis software to obtain the diameter of the target root system, the deformation quantity of the target root system, the number and the distribution position of the newly-born branch root systems on the target root system and the deformation quantity of the pipeline 3PE anticorrosive layer, thereby realizing the long-term continuous dynamic monitoring of the target root system on the extrusion performance of the pipeline 3PE anticorrosive layer. The results of the study, with 6 months of continuous observation, were as follows:
the diameter of the target root system is increased by 0.32mm, the deformation amount of the 3PE anticorrosive coating is 0.14mm, and the deformation amount of the 3PE anticorrosive coating tends to increase gradually with the lapse of time. This shows that the root growth of the pueraria lobata tree produces the extrusion effect on the three-layer PE material of the pipeline, so that the 3PE anticorrosive coating is deformed, and along with the growth of the root, the extrusion effect is stronger when the diameter is increased, and the deformation amount produced by the 3PE anticorrosive coating is larger.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. A method for detecting the extrusion performance of a plant root system on a pipeline anticorrosive coating is characterized by comprising the following steps:
a, pre-selecting a target plant, digging a trench in an area which is 0.8-1.3m away from the main trunk of the target plant by taking the target plant as a center, exposing the root system of the target plant in the trench, and stacking the dug soil according to the original level;
b, selecting a straight and undamaged living root system from the root systems exposed in the trench as a target root system to be detected, and intercepting two pipelines with preset lengths as target pipelines to be detected;
c, enabling the two target pipelines to clamp the target root system in the trench, then placing a micro root pipe on an interface between the target pipeline and the target root system along the growth direction of the target root system, and then binding the target pipeline, the target root system and the micro root pipe together;
d, backfilling the trench, namely backfilling according to the level of the excavated soil in the trench in the process of backfilling the trench, compacting layer by layer, and periodically inserting a linear scanning head of a micro root system ecological monitoring system into the micro root after the target root system continues to grow for a first preset time to scan the target root system and the target pipeline to obtain a scanning image;
and e, analyzing the scanning images by using a root system analyzer, analyzing each scanning image at the same position at different time, analyzing each scanning image at different positions at the same time, acquiring parameter information representing the morphological change of the target root system and the morphological change of the pipeline anticorrosive coating, and further determining the extrusion performance of the plant root system on the pipeline anticorrosive coating.
2. The method of claim 1, wherein plants within 2-4m of the target plant are removed prior to performing the digging.
3. The method of claim 2, in which the moat is rectangular, has a length of 1.5 to 2.5m, a width of 1.0 to 1.5m and a depth of 0.8 to 1.2 m.
4. The method as claimed in claim 1, wherein the diameter of the target root system is 2-10cm, and the length is more than or equal to 80 cm;
the length of the target pipeline is 70-80cm, and the anticorrosive layer on the target pipeline is a 3PE anticorrosive layer;
the external diameter of the micro root canal is 7-10cm, and the length is 0.8-1.2 m.
5. The method of claim 1, wherein the first predetermined time is 3-4 months.
6. The method of claim 1, wherein while scanning the target root system and the target pipe with the linear scanning head, the scanning is performed at the same location every second predetermined time.
7. The method of claim 6, wherein the second predetermined time is 20-30 days.
8. The method according to claim 1, wherein the linear scanning head is moved within the micro-canal at each time of scanning with the linear scanning head, the scanning being performed at different locations.
9. The method of claim 1, wherein the parameter information characterizing the target root system morphology change comprises: the deformation amount of the target root system, the diameter of the target root system, the number of the newly grown branch root systems on the target root system and the distribution position of the newly grown branch root systems on the target root system;
the parameter information for representing the form change of the anticorrosive coating of the pipeline comprises: the deformation amount of the pipeline anticorrosive coating.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101266690A (en) * 2007-03-15 2008-09-17 华南农业大学 Plant root species form 3-D image reconstruction system and method
CN101963584A (en) * 2010-08-25 2011-02-02 北京农业智能装备技术研究中心 Plant root system monitoring system based on hyperboloidal mirror
CN202587942U (en) * 2012-05-30 2012-12-12 西安浐灞生态区管理委员会 Double-purpose box for plant cultivation and root system penetration force experiments
CN104126493A (en) * 2014-07-29 2014-11-05 福建农林大学 Testing device and method for studying how root systems respond to horizontal barriers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101266690A (en) * 2007-03-15 2008-09-17 华南农业大学 Plant root species form 3-D image reconstruction system and method
CN101963584A (en) * 2010-08-25 2011-02-02 北京农业智能装备技术研究中心 Plant root system monitoring system based on hyperboloidal mirror
CN202587942U (en) * 2012-05-30 2012-12-12 西安浐灞生态区管理委员会 Double-purpose box for plant cultivation and root system penetration force experiments
CN104126493A (en) * 2014-07-29 2014-11-05 福建农林大学 Testing device and method for studying how root systems respond to horizontal barriers

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