CN108362583A - A kind of simulation explosive load is on closing on the experimental rig and method that buried oil-gas pipeline influences - Google Patents
A kind of simulation explosive load is on closing on the experimental rig and method that buried oil-gas pipeline influences Download PDFInfo
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- CN108362583A CN108362583A CN201711471195.8A CN201711471195A CN108362583A CN 108362583 A CN108362583 A CN 108362583A CN 201711471195 A CN201711471195 A CN 201711471195A CN 108362583 A CN108362583 A CN 108362583A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/313—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by explosives
Abstract
The invention belongs to explosions and pipeline engineering technical field, disclose a kind of experimental rig that simulation explosive load is influenced on closing on buried oil-gas pipeline, including：The blasting charge, pipeline, yellow ground layer, rock-soil layer, foundation pit and measuring equipment；Yellow ground layer and rock-soil layer overlay in foundation pit, form environment soil layer construction；Pipeline is arranged in environment soil layer construction between yellow ground layer and rock-soil layer；Work nest is arranged in yellow ground layer where pipe ends and ground layer region, and the sealing of pipeline one end, the other end is as live end；The blasting charge is laid in the vertical plane where pipeline, and equal to the distance of pipe ends；Measuring side device includes：Foil gauge, vibrating speed sensors and the data collecting instrument and computer being arranged on pipeline；Foil gauge connects computer by data collecting instrument respectively with vibrating speed sensors.The present invention can obtain reliable transport pipeline vibration characteristics and dynamic response rule.
Description
Technical field
The present invention relates to explosion and pipeline engineering technical field, more particularly to a kind of simulation explosive load is to closing on buried oil
The experimental rig and method that feed channel influences.
Background technology
Underground utilities are the lifelines in city, be city depend on for existence with development " nerve " and " blood vessel ", wherein oil transportation,
Water delivery, gas transmission line etc. are it may be said that constitute the foundation stone for maintaining modern society's normal operation.Buried pipeline is embedded in Urban Underground, point
Cloth region is wide, usually extends dozens of kilometres, and is surrounded by media such as soil, sand in ground, a large amount of modern times violent earthquakes
Disaster examples analysis shows, vibrations are an important factor for causing its destruction.At this stage, as the high speed of economic construction of China is sent out
Exhibition, the engineerings such as urban subway tunnel construction, the dismounting of towering buildings or structures, deep pit digging, waste and old old factory rehabilitation are all be unable to do without
Blasting construction method, however the research in terms of explosive load is acted on closing on buried pipeline influence is obviously insufficient.Research means
Also not perfect, it is confined to field monitoring and numerical simulation, the former cannot fully realize that the vibration of pipeline and deep rock mass is special more
Property and pipeline dynamic response monitoring, the latter's Calculation results and engineering practice still have larger difference.
Invention content
The present invention provides a kind of simulation explosive load on closing on the experimental rig and method that buried oil-gas pipeline influences, efficiently
The different buried transport pipeline vibration characteristics of monitoring and dynamic response rule consider different explosive payloads, the quick-fried heart in Practical Project
Away from the factors such as, pipeline material parameter and mechanical characteristic, pipeline medium, the vibrational state of complex engineering rock mass and pipeline is realized
Simulation, scientific basis is provided for the seismic optimization design of buried pipeline.
It is influenced in order to solve the above technical problems, the present invention provides a kind of simulation explosive loads on closing on buried oil-gas pipeline
Experimental rig, including：The blasting charge (1), pipeline (2), yellow ground layer (4), rock-soil layer (5), foundation pit (6) and measuring equipment；
The yellow ground layer (4) and the rock-soil layer (5) overlay in the foundation pit (6), form environment soil layer construction；
The pipeline (2) is arranged in the environment soil layer construction in the yellow ground layer (4) and the rock-soil layer (5)
Between；
Pipeline (2) the both ends region setting work nest (3), as the operating space of pipeline (2), the pipeline (2)
One end seals, and the other end is as live end；
The blasting charge (1) is laid in outside the foundation pit, and the distance to the pipeline (2) both ends is equal；
Amount side device includes：Foil gauge (7), vibrating speed sensors (8), data collecting instrument (9) and computer
(10)；
Pipeline (2) surface is met on quick-fried side, the quick-fried side of the back of the body, upper top surface and bottom surface, in an axial direction uniformly distributed multiple foil gauges
(7)；
The vibrating speed sensors (8) are laid at top surface on the sealed end side of pipeline (2), the vibration
The X-direction of velocity sensor (8) is directed toward the blasting charge (1)；
The foil gauge (7) and vibrating speed sensors (8) are connect by data line with data collecting instrument (9) respectively, institute
The data collecting instrument (9) stated is connect with computer (10).
Further, the environment soil layer construction is 3, is overlayed in the foundation pit (6)；
It is respectively provided with a pipeline (2) in each environment soil layer, and three pipelines (2) are in the vertical direction
It is coplanar；
Wherein, empty gas and water and kerosene are filled in three pipelines (2) respectively.
Further, the foundation pit (6) is rectangular shape, a length of 5-5.5m, width 1.5-2m, a height of 3.5-4m；
The floor height 0.2-0.3m of the rock-soil layer (5) and yellow ground layer (4).
Further, the blasting charge (1) is the spherical blasting charge, and pack radius is 2~4cm；
The weight specification of the blasting charge (1) is followed successively by 50g, 75g, 100g, 125g, 150g, 175g, 200g, distance pipe
The shortest distance in road (2) is 3-4.5m, and explosive is emulsion.
Further, the length of the pipeline (2) is 4.5-5m, a diameter of 0.250-0.3m, and upper two of pipeline (2) is adjacent
The distance between measuring point is 0.4-0.7m, pipeline (2) vibrating speed sensors (8) and sealing at top surface on sealed end side
It is 0.15-0.25m to hold the distance of end；The material of the pipeline (2) is that steel pipe or PE are managed.
Further, a length of 0.7-0.9m, the width 0.4-0.7m of work nest (3) rectangular section, work nest (3)
A height of 3.5-4m.
A kind of test method that simulation explosive load is influenced on closing on buried oil-gas pipeline, includes the following steps：
It is used as the underground buried space of pipeline by excavating cuboid foundation pit in Rock And Soil, and is filled out according to the size of pipeline
Build the work nest at two ends；
Sealing pipeline one end is full of air, kerosene and water by the other end into 3 pipelines, then seals respectively；
Be evenly distributed with multiple measuring points along conduit axis direction, the upper top surface of the pipeline external surface of each measuring point, lower top surface, meet it is quick-fried
A foil gauge is installed in side and the quick-fried side of the back of the body respectively, and data line is introduced into outside foundation pit；
First layer yellow ground layer is set in bottom of foundation ditch, and the pipeline that will be filled with kerosene is placed on first layer yellow ground layer, it will
First layer rock-soil layer is covered on the first layer yellow sand layer；
Second layer yellow ground layer is set above first layer rock-soil layer, then will be filled with the pipeline of water and be placed on second layer yellow ground layer
On, second layer rock-soil layer is covered in the second layer yellow sand layer；
Third layer yellow sand layer is set on second layer rock-soil layer, then will be filled with the pipeline setting of air in third layer yellow ground layer
On, rock-soil layer is filled until concordant with ground on third layer yellow ground layer；
In work slot space, one is respectively arranged at top surface on the pipe end of pipeline external surface sealed end side
A vibrating speed sensors, data line is introduced into outside foundation pit；
The data line of the data line of foil gauge and vibrating speed sensors is connect through data collecting instrument with computer respectively；
The blasting charge of different doses is buried on conduit axis middle vertical plane by certain depth, and by Nonel detonator and is led quick-fried
Pipe is drawn ground and is connect with priming device；
Before blasting experiment, the setting of the debugging efforts and each channel parameters of data collecting instrument is carried out；When detonation prepares, it will shake
Dynamic velocity sensor Acquisition Instrument is set as automatic trigger pattern, and detonating primer while starts to acquire strain data；When pipeline and
When surrounding Rock And Soil is basicly stable, stop acquisition, preserves data.
Further, the method further includes data processing step：
The pipe vibration speed time-history curves v (t) of acquisition is once integrated, the displacement attenuation curve of pipeline is obtained,
Obtain pipe vibration attenuation law.
Further, the method further includes data processing step：
Using constitutive equation σ=E ε of pipeline, it converts the dynamic strain time-history curves ε (t) of the pipeline of acquisition to pipeline
Dynamic stress attenuation curve σ (t) obtains the dynamic response characteristics of pipeline；
Further, the method further includes data processing step：
Using constitutive equation σ=E ε of pipeline, according to the dynamic tensile strength [σ] of pipelinetThe maximum of the inverse blasting charge permits
Perhaps dose obtains the vibrations load ability to bear of pipeline.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages：
The simulation explosive load provided in the embodiment of the present application is on closing on the experimental rig and side that buried oil-gas pipeline influences
Method, table is respectively arranged foil gauge and vibrating speed sensors outside pipeline, can be to closing on the vibration characteristics and power of pipeline
Response characteristic carries out comprehensive monitoring, solves the problems, such as that Pipes Buried Deep Underground monitoring is difficult in Practical Project, measurement project is incomplete.
Adjustable explosive charge, the quick-fried heart are set away from parameters such as, pipeline transportation media, fully take into account the complicated variety of Practical Project,
Further to disclose the dynamic response and failure mechanism of the lower buried pipeline of explosive load effect, pipe vibration characteristic and power are summarized
Response pattern provides test basis and research method, is provided for the anti-seismic optimization and safety and Protection of city oil-gas pipeline
Scientific basis.
Description of the drawings
Fig. 1 is simulation explosive load provided by the invention on closing on the vertical view of the experimental rig that buried oil-gas pipeline influences
Figure；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is pipeline external surface measuring point distribution map provided by the invention；
Fig. 4 is the B-B sectional views of Fig. 3；
Fig. 5 is measuring equipment structural schematic diagram provided by the invention；
In figure：1, the blasting charge, 2, pipeline, 3, work nest, 4, yellow ground layer, 5, rock-soil layer, 6, foundation pit, 7, foil gauge, 8, shake
Dynamic velocity sensor, 9, data collecting instrument, 10, computer.
Specific implementation mode
The embodiment of the present application is influenced by providing a kind of simulation explosive load of present invention offer on closing on buried oil-gas pipeline
Experimental rig and method, efficiently the different buried transport pipeline vibration characteristics of monitoring and dynamic response rule, consider reality
Different explosive payloads in engineering, the quick-fried heart realize complicated work away from the factors such as, pipeline material parameter and mechanical characteristic, pipeline medium
The vibrational state of Cheng Yanti and pipeline is simulated, and the seismic optimization design for buried pipeline provides scientific basis.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application skill
The detailed description of art scheme, rather than to the restriction of technical scheme, in the absence of conflict, the embodiment of the present application
And the technical characteristic in embodiment can be combined with each other.
Referring to Fig. 1 and Fig. 2, the experimental rig that a kind of simulation explosive load is influenced on closing on buried oil-gas pipeline, including：It is fried
Pack 1, pipeline 2, yellow ground layer 4, rock-soil layer 5, foundation pit 6 and measuring equipment.
It is specifically described below.
The yellow ground layer 4 and the rock-soil layer 5 overlay in the foundation pit 6, form environment soil layer construction；The pipeline 2
In the environment soil layer construction, it is arranged between the yellow ground layer 4 and the rock-soil layer 5；To simulate actual explosion
Environment promotes experimental reliability.
Work nest 3 is arranged in yellow ground layer 4 where 2 both ends of the pipeline and 5 region of rock-soil layer, that is, at the both ends of foundation pit 6
Working region is set, yellow sand and ground are not filled with, is used for the operation at 2 both ends of pipeline.2 one end of the pipeline seals, and the other end is made
For live end, it is used for fill pipe medium, simulates actual working state.
The blasting charge 1 is laid in outside foundation pit 6, is located in the vertical plane of the pipeline 2, and arrives the pipeline
The distance at 2 both ends is equal；In general, multiple explosion equivalents are set, different depth and distance can also be set as needed
Demolition point studies explosion rule.
Referring to Fig. 3 and Fig. 4, amount side device includes：Foil gauge 7, vibrating speed sensors 8, data collecting instrument 9 and meter
Calculation machine 10.
2 surface of the pipeline is met on quick-fried side, the quick-fried side of the back of the body, upper top surface and bottom surface, in an axial direction uniformly distributed multiple foil gauges 7；
The vibrating speed sensors 8 are laid at top surface on the sealed end side of pipeline 2, the vibrating speed sensors 8
X-direction be directed toward the blasting charge 1, promoted on explosion influence acquisition of information reliability.
Referring to Fig. 5, the foil gauge 7 and vibrating speed sensors 8 are connect by data line with data collecting instrument 9 respectively,
The data collecting instrument 9 is connect with computer 10.
In general, the environment soil layer construction is 3, is overlayed in the foundation pit 6；In each environment soil layer
One pipeline 2 is set, and three pipelines 2 are coplanar in the vertical direction；So that three pipelines 2 are in unanimously
Position, the reliability of lifting test data.
Wherein, empty gas and water and kerosene are filled in three pipelines 2 respectively, further simulates the operating status of working substance.
In general, according to experimental size, the foundation pit 6 is rectangular shape, and a length of 5-5.5m, width 1.5-2m are high
For 3.5-4m；The floor height 0.2-0.3m of the rock-soil layer 5 and yellow ground layer 4.
Further, the blasting charge 1 is the spherical blasting charge, and pack radius is 2~4cm；The weight of the blasting charge 1
Specification is followed successively by 50g, 85g, 100g, 125g, 150g, 175g, 200g, and the shortest distance apart from pipeline (2) is 3-4.5m, explosive
For emulsion.
The length of the pipeline 2 is 4.5-5m, a diameter of 0.250-0.3m, on pipeline 2 between two adjacent measuring points away from
From for 0.4-0.7m, the vibrating speed sensors 8 at top surface on sealed end side of pipeline 2 are at a distance from sealed end end
0.15-0.25m；The material of the pipeline 2 is that steel pipe or PE are managed.
Further, a length of 0.7-0.9m of 3 rectangular section of the work nest, width 0.4-0.7m, work nest 3 it is a height of
3.5-4m。
A kind of test method that simulation explosive load is influenced on closing on buried oil-gas pipeline, includes the following steps：
It is used as the underground buried space of pipeline by excavating cuboid foundation pit in Rock And Soil, and is filled out according to the size of pipeline
Build the work nest at two ends；
Sealing pipeline one end is full of air, kerosene and water by the other end into 3 pipelines, then seals respectively；
Be evenly distributed with multiple measuring points along conduit axis direction, the upper top surface of the pipeline external surface of each measuring point, lower top surface, meet it is quick-fried
A foil gauge is installed in side and the quick-fried side of the back of the body respectively, and data line is introduced into outside foundation pit；
First layer yellow ground layer is set in bottom of foundation ditch, and the pipeline that will be filled with kerosene is placed on first layer yellow ground layer, it will
First layer rock-soil layer is covered on the first layer yellow sand layer；
Second layer yellow ground layer is set above first layer rock-soil layer, then will be filled with the pipeline of water and be placed on second layer yellow ground layer
On, second layer rock-soil layer is covered in the second layer yellow sand layer；
Third layer yellow sand layer is set on second layer rock-soil layer, then will be filled with the pipeline setting of air in third layer yellow ground layer
On, rock-soil layer is filled until concordant with ground on third layer yellow ground layer；
In work slot space, one is respectively arranged at top surface on the pipe end of pipeline external surface sealed end side
A vibrating speed sensors, data line is introduced into outside foundation pit；
The data line of the data line of foil gauge and vibrating speed sensors is connect through data collecting instrument with computer respectively；
The blasting charge of different doses is buried on conduit axis middle vertical plane by certain depth, and by Nonel detonator and is led quick-fried
Pipe is drawn ground and is connect with priming device；
Before blasting experiment, the setting of the debugging efforts and each channel parameters of data collecting instrument is carried out；When detonation prepares, it will shake
Dynamic velocity sensor Acquisition Instrument is set as automatic trigger pattern, and detonating primer while starts to acquire strain data；When pipeline and
When surrounding Rock And Soil is basicly stable, stop acquisition, preserves data.
Further, the method further includes data processing step：
The pipe vibration speed time-history curves v (t) of acquisition is once integrated, the displacement attenuation curve of pipeline is obtained,
Obtain pipe vibration attenuation law.
Further, the method further includes data processing step：
Using constitutive equation σ=E ε of pipeline, it converts the dynamic strain time-history curves ε (t) of the pipeline of acquisition to pipeline
Dynamic stress attenuation curve σ (t) obtains the dynamic response characteristics of pipeline；
Further, the method further includes data processing step：
Using constitutive equation σ=E ε of pipeline, according to the dynamic tensile strength [σ] of pipelinetThe maximum of the inverse blasting charge permits
Perhaps dose obtains the vibrations load ability to bear of pipeline.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages：
The device and method that the simulation explosive load provided in the embodiment of the present application is influenced on closing on buried oil-gas pipeline,
Table is respectively arranged foil gauge and vibrating speed sensors outside pipeline, can be special to the vibration characteristics and dynamic response of closing on pipeline
Sign carries out comprehensive monitoring, solves the problems, such as that Pipes Buried Deep Underground monitoring is difficult in Practical Project, measurement project is incomplete.Setting can
The explosive charge of adjustment, the quick-fried heart fully take into account the complicated variety of Practical Project away from parameters such as, pipeline transportation media, for into one
Step discloses the dynamic response and failure mechanism of the lower buried pipeline of explosive load effect, summarizes pipe vibration characteristic and dynamic response rule
Rule provide test basis and research method, for city oil-gas pipeline anti-seismic optimization and safety and Protection provide science according to
According to.
It should be noted last that the above specific implementation mode is merely illustrative of the technical solution of the present invention and unrestricted,
Although being described the invention in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit of the technical scheme of the invention and range, should all cover
In the scope of the claims of the present invention.
Claims (10)
1. the experimental rig that a kind of simulation explosive load is influenced on closing on buried oil-gas pipeline, which is characterized in that including：The blasting charge
(1), pipeline (2), yellow ground layer (4), rock-soil layer (5), foundation pit (6) and measuring equipment；
The yellow ground layer (4) and the rock-soil layer (5) overlay in the foundation pit (6), form environment soil layer construction；
The pipeline (2) is arranged in the environment soil layer construction between the yellow ground layer (4) and the rock-soil layer (5)；
Pipeline (2) the both ends region setting work nest (3), as the operating space of pipeline (2), described pipeline (2) one end
Sealing, the other end is as live end；
The cloth of the blasting charge (1), which sets up an office, to be arranged outside the foundation pit, and the distance to the pipeline (2) both ends is equal；
Amount side device includes：Foil gauge (7), vibrating speed sensors (8), data collecting instrument (9) and computer (10)；
Pipeline (2) surface is met on quick-fried side, the quick-fried side of the back of the body, upper top surface and bottom surface, in an axial direction uniformly distributed multiple foil gauges (7)；
The vibrating speed sensors (8) are laid at top surface on the sealed end side of pipeline (2), the vibration velocity
The X-direction of sensor (8) is directed toward the blasting charge (1)；
The foil gauge (7) and vibrating speed sensors (8) are connect by data line with data collecting instrument (9) respectively, described
Data collecting instrument (9) is connect with computer (10).
2. the experimental rig that simulation explosive load is influenced on closing on buried oil-gas pipeline as described in claim 1, feature exist
In：The environment soil layer construction is 3, is overlayed in the foundation pit (6)；
A pipeline (2) is respectively provided in each environment soil layer, and three pipelines (2) are total in the vertical direction
Face；
Wherein, empty gas and water and kerosene are filled in three pipelines (2) respectively.
3. the experimental rig that simulation explosive load is influenced on closing on buried oil-gas pipeline as claimed in claim 2, feature exist
In：
The foundation pit (6) is rectangular shape, a length of 5-5.5m, width 1.5-2m, a height of 3.5-4m；
The floor height 0.2-0.3m of the rock-soil layer (5) and yellow ground layer (4).
4. the experimental rig that simulation explosive load is influenced on closing on buried oil-gas pipeline as claimed in claim 3, feature exist
In：The blasting charge (1) is the spherical blasting charge, and pack radius is 2~4cm；
The weight specification of the blasting charge (1) is followed successively by 50g, 75g, 100g, 125g, 150g, 175g, 200g, apart from pipeline (2)
The shortest distance be 3-4.5m, explosive is emulsion.
5. the experimental rig that simulation explosive load is influenced on closing on buried oil-gas pipeline as claimed in claim 4, feature exist
In：The length of the pipeline (2) is 4.5-5m, a diameter of 0.250-0.3m, the distance between upper two adjacent measuring points of pipeline (2)
For 0.4-0.7m, pipeline (2) vibrating speed sensors (8) at top surface on sealed end side are at a distance from sealed end end
0.15-0.25m；
The material of the pipeline (2) is that steel pipe or PE are managed.
6. the experimental rig that simulation explosive load is influenced on closing on buried oil-gas pipeline as claimed in claim 5, feature exist
In：
The a length of 0.7-0.9m, width 0.4-0.7m, a height of 3.5-4m of work nest (3) of work nest (3) rectangular section.
7. the test method that a kind of simulation explosive load is influenced on closing on buried oil-gas pipeline, which is characterized in that and include following
Step：
It is used as the underground buried space of pipeline by excavating cuboid foundation pit in Rock And Soil, and two is filled according to the size of pipeline
The work nest of end point；
Sealing pipeline one end is full of air, kerosene and water by the other end into 3 pipelines, then seals respectively；
Be evenly distributed with multiple measuring points along conduit axis direction, the upper top surface of the pipeline external surface of each measuring point, lower top surface, meet quick-fried side and
It carries on the back quick-fried side and one foil gauge is installed respectively, and data line is introduced into outside foundation pit；
First layer yellow ground layer is set in bottom of foundation ditch, and the pipeline that will be filled with kerosene is placed on first layer yellow ground layer, by first
Layer rock-soil layer is covered on the first layer yellow sand layer；
Second layer yellow ground layer is set above first layer rock-soil layer, then will be filled with the pipeline of water and be placed on second layer yellow ground layer,
Second layer rock-soil layer is covered in the second layer yellow sand layer；
On second layer rock-soil layer be arranged third layer yellow sand layer, then will be filled with air pipeline be arranged on third layer yellow ground layer,
Rock-soil layer is filled on third layer yellow ground layer until concordant with ground；
It shakes being respectively arranged one at top surface in work slot space, on the pipe end of close pipeline external surface sealed end side
Dynamic velocity sensor, data line is introduced into outside foundation pit；
The data line of the data line of foil gauge and vibrating speed sensors is connect through data collecting instrument with computer respectively；
The blasting charge of different doses is buried on conduit axis middle vertical plane by certain depth, and Nonel detonator and detonator are drawn
Go out ground to connect with priming device；
Before blasting experiment, the setting of the debugging efforts and each channel parameters of data collecting instrument is carried out；When detonation prepares, by vibration speed
Degree sensor Acquisition Instrument is set as automatic trigger pattern, and detonating primer while starts to acquire strain data；When pipeline and surrounding
When Rock And Soil is basicly stable, stop acquisition, preserves data.
8. the test method that simulation explosive load is influenced on closing on buried oil-gas pipeline as claimed in claim 7, feature exist
In the method further includes data processing step：
The pipe vibration speed time-history curves v (t) of acquisition is once integrated, the displacement attenuation curve of pipeline is obtained, is obtained
Pipe vibration attenuation law.
9. the test method that simulation explosive load is influenced on closing on buried oil-gas pipeline as claimed in claim 7, feature exist
In the method further includes data processing step：
Using constitutive equation σ=E ε of pipeline, converts the dynamic strain time-history curves ε (t) of the pipeline of acquisition to the dynamic of pipeline and answer
Power attenuation curve σ (t) obtains the dynamic response characteristics of pipeline.
10. the test method that simulation explosive load is influenced on closing on buried oil-gas pipeline as claimed in claim 7, feature exist
In the method further includes data processing step：
Using constitutive equation σ=E ε of pipeline, according to the dynamic tensile strength [σ] of pipelinetThe maximum allowable medicine of the inverse blasting charge
Amount, obtains the vibrations load ability to bear of pipeline.
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| CN112924269A (en) * | 2021-01-11 | 2021-06-08 | 国家管网集团西部管道有限责任公司 | Method and test device for simulating third-party damage to large-caliber high-pressure pipeline |
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| CN109507048A (en) * | 2019-01-08 | 2019-03-22 | 中国地质大学（武汉） | The pilot system and method that simulation tunnel blasting excavation influences existing lining cutting |
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| CN111948073A (en) * | 2019-05-16 | 2020-11-17 | 中国石油天然气股份有限公司 | Buried pipeline external explosion coupling interface parameter experiment testing device |
| CN111948073B (en) * | 2019-05-16 | 2023-04-07 | 中国石油天然气股份有限公司 | Buried pipeline external explosion coupling interface parameter experiment testing device |
| CN110991009A (en) * | 2019-11-11 | 2020-04-10 | 宁波大学 | Method for determining stress deformation of pipeline based on soil loss below buried pipeline under action of overlying load |
| CN110991009B (en) * | 2019-11-11 | 2023-05-23 | 宁波大学 | Method for determining stress deformation of buried pipeline by soil body loss below pipeline |
| CN112924269A (en) * | 2021-01-11 | 2021-06-08 | 国家管网集团西部管道有限责任公司 | Method and test device for simulating third-party damage to large-caliber high-pressure pipeline |
| CN113092085A (en) * | 2021-03-04 | 2021-07-09 | 山东科技大学 | Measurement test device for transient whipping behavior of pressurizing pipeline |
| CN113092085B (en) * | 2021-03-04 | 2022-03-25 | 山东科技大学 | Measurement test device for transient whipping behavior of pressurizing pipeline |
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