CN105571951B - Interior hydraulic pressure and external load the joint bearing test equipment and test method of buried rigid pressure pipeline - Google Patents
Interior hydraulic pressure and external load the joint bearing test equipment and test method of buried rigid pressure pipeline Download PDFInfo
- Publication number
- CN105571951B CN105571951B CN201610061079.8A CN201610061079A CN105571951B CN 105571951 B CN105571951 B CN 105571951B CN 201610061079 A CN201610061079 A CN 201610061079A CN 105571951 B CN105571951 B CN 105571951B
- Authority
- CN
- China
- Prior art keywords
- testing machine
- test
- interior
- hydraulic pressure
- hydrostatic testing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to the interior hydraulic pressure and external load of buried rigid pressure pipeline to combine bearing test equipment and test method.The testing equipment includes external applied load testing machine and interior hydrostatic testing machine, it is characterised in that：Also include two section connecting tubes；The interior hydrostatic testing machine is lain in a horizontal plane in the test space of external applied load testing machine, and the water pressure test machine liner being used on interior hydrostatic testing machine in targeted test pipe is lengthened；Two described section connecting tubes are respectively used to be connected to targeted test pipe both ends, and the other end of two section connecting tubes is respectively used to connect two end interfaces of interior hydrostatic testing machine.The test method is that two section connecting tubes are first connected to the both ends of targeted test pipe, then it is sleeved on jointly on the water pressure test machine liner of interior hydrostatic testing machine and connects sealing, it is placed on again in the test space of external applied load testing machine, targeted test pipe keep level is placed, while hydraulic pressure and the experiment of external load combination loading in progress.The present invention is simple to operate, and result of the test is intuitively true.
Description
Technical field
The present invention relates to the interior hydraulic pressure and external load of a kind of buried rigid pressure pipeline to combine bearing test equipment and experiment
Method, belong to pipeline load carrying capacity test technical field.
Background technology
Buried pressure pipeline is typically subjected to the native load of conduit upper soil, the car on ground in normal operating conditions
Internal water pressure inside the external loads, and pipeline such as pedestrian load.It is interior in order to examine it to bear after the completion of pipe design manufacture
The performance of hydraulic pressure and external load is, it is necessary to carry out structural clays.
At present industry to the structural clays of buried pressure pipeline typically using lotus outside the water pressure test in cracking resistance or cracking resistance
Carry experiment（GB/T16752《Test methods of concrete and reinforced concrete drainage and sewer pipes》、GB/T15345《Concrete water transmission pipe is tested
Method》）.Need to be converted to internal water pressure by conversion, the external load that should bear pipeline when doing the water pressure test in cracking resistance, add
The internal water pressure that pipeline should be born, the water pressure test in cracking resistance is carried out to pipeline with both sums；When doing the experiment of cracking resistance external load
Need also exist for being converted to external load by conversion, the internal water pressure that should bear pipeline, the external load that should be born plus pipeline,
Cracking resistance external load experiment is carried out to pipeline with both sums.
The principle that interior hydraulic pressure and external load are converted mutually is concrete in tension or compression edge is produced equal stress, this
When the action effect of interior hydraulic pressure and external load be identical, therefore can mutually change.Lacking corresponding research technique
In the case of, in the cracking resistance through conversion the water pressure test or cracking resistance external load test its result be also can be with received, but must recognize
Know such experiment and not fully meet actual conditions of the pipeline under buried, normal water flowing state.Internal water pressure（It is not equal to
When 0）In any section all it is tunneling boring tension to the action effect of pipeline, external load is tube top ttom of pipe to the action effect of pipeline
Approximate simple bending, pipe side large eccentric pressuring.Therefore, the actual loading situation of pipeline is tube top ttom of pipe axial tension superposition simple bending, pipe
Side axial tension superposition large eccentric pressuring, and the common test method of industry can not accomplish the effect of superposition at present, although tension
Or ess-strain of compression edge when can simulate pipeline actual motion, but during pipeline actual motion along tube wall radial direction should
Stress-strain gradient is that can not simulate, especially for the pipeline for having certain thickness composite construction, ad-hoc location certain
Kind of material the ess-strain situation of pipeline actual motion be critically important but current test method to pipe safety operation without
Method, which simulates, to be come.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of buried rigid pressure pipeline it is interior
Hydraulic pressure and external load joint bearing test equipment and test method, its is simple to operate, and result of the test is intuitively true.
According to technical scheme provided by the invention：Interior hydraulic pressure and external load the joint bearing test of buried rigid pressure pipeline
Equipment, including external applied load testing machine and interior hydrostatic testing machine, it is characterised in that：Also include two section connecting tubes；The interior hydraulic pressure examination
The machine of testing is lain in a horizontal plane in the test space of external applied load testing machine, the water being used on interior hydrostatic testing machine in targeted test pipe
Pressure experiment machine liner is lengthened；Two described section connecting tubes are respectively used to be connected to targeted test pipe both ends, two section connecting tubes
The other end be respectively used to connect two end interfaces of interior hydrostatic testing machine.
As a further improvement on the present invention, the external applied load testing machine include upper strut beam, loading oil cylinder, loading beam,
Pull bar and lower strut beam, are connected between upper strut beam and lower strut beam by pull bar, and described loading oil cylinder one end, which is connected to, holds
In press beam, the other end connects downwards loading beam.
As a further improvement on the present invention, the interface at the connecting tube both ends and the interface phase at targeted test pipe both ends
Together, connecting tube is spigot-and-socket flexible joint steel pipe.
Interior hydraulic pressure and external load the joint bearing test method of buried rigid pressure pipeline, it is characterised in that including following step
Suddenly：
（1）, using water pressure test machine liner lengthen interior hydrostatic testing machine, by two section connecting tubes be connected to targeted test pipe
Both ends, the connecting tube uses spigot-and-socket flexible joint steel pipe；
（2）, the targeted test pipe connected and two section connecting tubes be sleeved on the water pressure test of interior hydrostatic testing machine jointly
On machine liner, the other end of two section connecting tubes connects two end interfaces of interior hydrostatic testing machine respectively；
（3）, using external applied load testing machine, the interior hydrostatic testing machine for installing targeted test pipe is placed on external applied load testing machine
In test space, interior hydrostatic testing machine and targeted test pipe keep level is placed；
（4）While start external applied load testing machine and interior hydrostatic testing machine, hydraulic pressure and the examination of external load combination loading in progress
Test.
The present invention compared with prior art, has the following advantages that：The present invention is simple to operate, overcomes existing test method only
The defects of water pressure test or cracking resistance external load are tested in cracking resistance can be individually carried out, two kinds of experiments are combined, in realization
The water pressure test and external load experiment are carried out simultaneously, can intuitively be detected buried pressure pipeline and are total to by interior hydraulic pressure and external load
Performance under same-action, the ess-strain feelings of tube wall radial direction each position when the actual water flowing of the buried pressure pipeline of real simulation is run
Condition, without carrying out the conversion of interior hydraulic pressure or external load again, suitable for buried Structural Design of Penstocks theory and the quality of production
Review checking, turns into contact theory and the bridge of practice.
Brief description of the drawings
Fig. 1 is the structure and application schematic diagram of the embodiment of the present invention.
Fig. 2 is the assembling situation schematic diagram of targeted test pipe and two section connecting tubes.
The structural representation for the interior hydrostatic testing machine that Fig. 3 water pressure tests of embodiment of the present invention machine liner lengthens.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in the figure：Interior hydraulic pressure and external load the joint bearing test equipment master of buried rigid pressure pipeline in embodiment
To be saved connecting tube 3 by external applied load testing machine 1, interior hydrostatic testing machine 2 and two and be formed.
As shown in Fig. 1 ~ Fig. 3, the interior hydrostatic testing machine 2 is lain in a horizontal plane in the test space of external applied load testing machine 1, interior
The water pressure test machine liner 2a being used on hydrostatic testing machine 2 in targeted test pipe 4 is lengthened；Two described section connecting tubes
3 are respectively used to be connected to the both ends of targeted test pipe 4, and the other end of two section connecting tubes 3 is respectively used to connect interior hydrostatic testing machine 2
Two end interfaces.
As shown in figure 1, in the embodiment of the present invention, the external applied load testing machine 1 is mainly by upper strut beam 1.1, loading oil cylinder
1.2nd, loading beam 1.3, pull bar 1.4 and lower strut beam 1.5 form, and pass through pull bar between upper strut beam 1.1 and lower strut beam 1.5
1.4 connections, described one end of loading oil cylinder 1.2 are connected on strut beam 1.1, and the other end connects downwards loading beam 1.3.
As shown in Figure 1 and Figure 2, in the embodiment of the present invention, interface and the both ends of targeted test pipe 4 at the both ends of connecting tube 3
Interface is identical, and connecting tube 3 is spigot-and-socket flexible joint steel pipe.
Interior hydraulic pressure and external load the joint bearing test method of the buried rigid pressure pipeline comprise the following steps：
（1）, using water pressure test machine liner 2a lengthen interior hydrostatic testing machine 2, as shown in Figure 2 by two section connecting tubes 3 connect
The both ends of targeted test pipe 4 are connected on, the connecting tube 3 uses spigot-and-socket flexible joint steel pipe；
（2）, again as shown in Figure 1 by the targeted test pipe 4 and two connected section connecting tube 3 be sleeved on the interior water pressure test jointly
On the water pressure test machine liner 2a of machine 2, the other end of two section connecting tubes 3 connects two end interfaces of interior hydrostatic testing machine 2 respectively；
（3）, using external applied load testing machine 1, then the interior hydrostatic testing machine 2 for installing targeted test pipe 4 is placed on as shown in Figure 1
In the test space of external applied load testing machine 1, interior hydrostatic testing machine 2 and targeted test pipe 4 keep level is placed；
（4）While start external applied load testing machine 1 and interior hydrostatic testing machine 2, hydraulic pressure and the examination of external load combination loading in progress
Test.
The present invention is lengthened by the water pressure test machine liner 2a of internal hydrostatic testing machine 2, has interior hydrostatic testing machine 2
Have while ability that test objective developmental tube 4 is added with connecting tube 3.Connecting tube 3 in the present invention is flexible using spigot-and-socket
Joint steel pipe, because steel pipe is the pressure tubing that a kind of ring intensity is higher, rigidity is relatively low, the present invention it is ingenious make use of steel pipe this
One feature, the targeted test pipe 4 larger with relative stiffness combine, and the hydraulic pressure and during external load Combined Trials in progress, lead to
Cross steel pipe and transmit water pressure, make the ring tunneling boring tension of targeted test pipe 4, simulate buried pressure pipe and imitated by interior hydraulic pressure effect
Should；Meanwhile in the presence of outer loading test machine loading beam 1.3, targeted test pipe 4 produces and buried state identical tube top pipe
The effect of bottom simple bending, pipe side large eccentric pressuring, now steel pipe due to hoop rigidity it is relatively low, its resist external load contribution can neglect
Slightly disregard, and the interface due to steel pipe is identical with the interface of targeted test pipe 4, is spigot-and-socket flexible interface, targeted test pipe 4
A certain amount of deformation occurs in Impact direction when carrying out external load experiment, spigot-and-socket flexible interface can be in targeted test pipe 4
Sealing is remained in that in the case of having certain deflection.
Claims (4)
1. interior hydraulic pressure and external load the joint bearing test equipment of buried rigid pressure pipeline, including external applied load testing machine（1）With
Interior hydrostatic testing machine（2）, it is characterised in that：Also include two section connecting tubes（3）；The interior hydrostatic testing machine（2）Lie in a horizontal plane in
External applied load testing machine（1）Test space in, then by interior hydrostatic testing machine（2）It is upper to be used to be mounted in targeted test pipe（4）Interior water
Pressure experiment machine liner（2a）Lengthened；Two described section connecting tubes（3）It is respectively used to be connected to targeted test pipe（4）Both ends,
Two section connecting tubes（3）The other end be respectively used to connect interior hydrostatic testing machine（2）Two end interfaces.
2. interior hydraulic pressure and external load the joint bearing test equipment of buried rigid pressure pipeline as claimed in claim 1, it is special
Sign is：The external applied load testing machine（1）Including upper strut beam（1.1）, loading oil cylinder（1.2）, loading beam（1.3）, pull bar
（1.4）With lower strut beam（1.5）, upper strut beam（1.1）With lower strut beam（1.5）Between pass through pull bar（1.4）Connection, it is described to add
Lotus oil cylinder（1.2）One end is connected to strut beam（1.1）On, the other end connects downwards loading beam（1.3）.
3. interior hydraulic pressure and external load the joint bearing test equipment of buried rigid pressure pipeline as claimed in claim 1, it is special
Sign is：The connecting tube（3）The interface at both ends and targeted test pipe（4）The interface at both ends is identical, connecting tube（3）For spigot-and-socket
Flexible joint steel pipe.
4. interior hydraulic pressure and external load the joint bearing test method of buried rigid pressure pipeline, it is characterised in that including following step
Suddenly：
（1）, using water pressure test machine liner（2a）The interior hydrostatic testing machine lengthened（2）, connecting tube is saved by two（3）It is connected to target
Developmental tube（4）Both ends, the connecting tube（3）Using spigot-and-socket flexible joint steel pipe；
（2）, the targeted test pipe that will connect（4）With two section connecting tubes（3）Interior hydrostatic testing machine is sleeved on jointly（2）Hydraulic pressure
Test machine liner（2a）On, two section connecting tubes（3）The other end connect interior hydrostatic testing machine respectively（2）Two end interfaces；
（3）, using external applied load testing machine（1）, targeted test pipe will be installed（4）Interior hydrostatic testing machine（2）It is placed on external applied load examination
Test machine（1）Test space in, interior hydrostatic testing machine（2）With targeted test pipe（4）Keep level is placed；
（4）While start external applied load testing machine（1）With interior hydrostatic testing machine（2）, hydraulic pressure and the examination of external load combination loading in progress
Test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061079.8A CN105571951B (en) | 2016-01-28 | 2016-01-28 | Interior hydraulic pressure and external load the joint bearing test equipment and test method of buried rigid pressure pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061079.8A CN105571951B (en) | 2016-01-28 | 2016-01-28 | Interior hydraulic pressure and external load the joint bearing test equipment and test method of buried rigid pressure pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105571951A CN105571951A (en) | 2016-05-11 |
| CN105571951B true CN105571951B (en) | 2018-04-06 |
Family
ID=55882337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610061079.8A Active CN105571951B (en) | 2016-01-28 | 2016-01-28 | Interior hydraulic pressure and external load the joint bearing test equipment and test method of buried rigid pressure pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105571951B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110598284A (en) * | 2019-08-29 | 2019-12-20 | 北京市燃气集团有限责任公司 | Method for evaluating external load bearing capacity of buried gas pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325722A (en) * | 1992-08-14 | 1994-07-05 | The United States Of America As Represented By The Secretary Of The Navy | Split pipe testing device for the measurement of bond of reinforcement under controlled confinement |
| CN102435504A (en) * | 2011-12-15 | 2012-05-02 | 中国石油天然气股份有限公司 | In-service pipeline composite load simulation test method and system |
| CN102778395A (en) * | 2011-05-13 | 2012-11-14 | 中国石油天然气股份有限公司 | In-service pipeline settlement simulation test method and device |
| CN103760033A (en) * | 2014-01-27 | 2014-04-30 | 欧阳杰 | Testing device for water pressure of pipe material and application method thereof |
| CN103822042A (en) * | 2014-03-14 | 2014-05-28 | 江苏华光双顺机械制造有限公司 | Upright water press |
| CN205483825U (en) * | 2016-01-28 | 2016-08-17 | 无锡华毅管道有限公司 | Interior water pressure that buries ground rigidity pipeline under pressure jointly adds lotus testing equipment with outer load |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100656073B1 (en) * | 2005-12-26 | 2006-12-11 | 주식회사 포스코 | Measurement method of forming limit diagram for hydroforming steel tube |
-
2016
- 2016-01-28 CN CN201610061079.8A patent/CN105571951B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325722A (en) * | 1992-08-14 | 1994-07-05 | The United States Of America As Represented By The Secretary Of The Navy | Split pipe testing device for the measurement of bond of reinforcement under controlled confinement |
| CN102778395A (en) * | 2011-05-13 | 2012-11-14 | 中国石油天然气股份有限公司 | In-service pipeline settlement simulation test method and device |
| CN102435504A (en) * | 2011-12-15 | 2012-05-02 | 中国石油天然气股份有限公司 | In-service pipeline composite load simulation test method and system |
| CN103760033A (en) * | 2014-01-27 | 2014-04-30 | 欧阳杰 | Testing device for water pressure of pipe material and application method thereof |
| CN103822042A (en) * | 2014-03-14 | 2014-05-28 | 江苏华光双顺机械制造有限公司 | Upright water press |
| CN205483825U (en) * | 2016-01-28 | 2016-08-17 | 无锡华毅管道有限公司 | Interior water pressure that buries ground rigidity pipeline under pressure jointly adds lotus testing equipment with outer load |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105571951A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Alexander et al. | Extending onshore pipeline repair to offshore steel risers with carbon–fiber reinforced composites | |
| Qu et al. | Numerical studies on dynamic behavior of tubular T-joint subjected to impact loading | |
| CN107515150A (en) | A kind of off-shore pipeline mechanical property integration test experimental provision | |
| CN110823612B (en) | Tunnel surrounding rock lining composite structure stress waterproof test system and method | |
| CN101725345B (en) | Device for simulating casing-cement sheath damage indoor test under stratum action | |
| CN105806694A (en) | Combined loading testing device for complex loads of submarine pipelines | |
| CN101122552A (en) | Reservoir casing perforation anti-crushing simulation test method and simulation test machine | |
| CN109520851A (en) | Section of jurisdiction faulting of slab ends testing method | |
| CN104847015A (en) | Assembled joint applicable to monolayer triangular space grid structure | |
| CN104458565B (en) | Testing device for interaction of lateral displacement of soil body and buried pipeline | |
| Pournara et al. | Structural resistance of high-strength steel CHS members | |
| CN105890999A (en) | Deep-water drilling-riser mechanical behavior simulation test device and method | |
| Liu et al. | Strain demand prediction method for buried X80 steel pipelines crossing oblique-reverse faults | |
| CN108571328B (en) | Stratum juncture shield tunnel segment lining structure and design method | |
| Van Wittenberghe et al. | Fatigue investigation of threaded pipe connections | |
| CN105571951B (en) | Interior hydraulic pressure and external load the joint bearing test equipment and test method of buried rigid pressure pipeline | |
| Zhu et al. | Mechanical plugging—solid expandable tubular refracturing technology | |
| Netto et al. | Fatigue performance of pre-strained pipes with girth weld defects: Full-scale experiments and analyses | |
| Zhu et al. | Research on collapse failure characteristics and theoretical prediction formulas of solid expandable tubular | |
| CN205483825U (en) | Interior water pressure that buries ground rigidity pipeline under pressure jointly adds lotus testing equipment with outer load | |
| CN105040752A (en) | Foundation pile self-reaction force balance test integrated device | |
| CN105672344A (en) | Steel bar reinforced foundation grouting sleeve connection structure and method of offshore wind turbines | |
| Vitali et al. | Hotpipe JI project: experimental test and FE analyses | |
| CN205654380U (en) | Existing tunnel of double -line tunnel excavation simulation monitoring devices | |
| Zhou et al. | Burst pressure of pipelines with corrosion anomalies under high longitudinal strains |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Yueren Inventor after: Tao Zhefeng Inventor after: Zhu Lei Inventor after: Wang Xiaopeng Inventor after: Yao Jie Inventor after: Zhang Haifeng Inventor after: Wang Tao Inventor after: Xu Yingwu Inventor after: Wang Jianbin Inventor after: Fan Xuelian Inventor after: Ye Yuanxin Inventor after: Zheng Guoxing Inventor after: Shen Pangyong Inventor after: Zhong Junbin Inventor after: Wang Hongtao Inventor after: Xuan Feng Inventor after: Gu Bin Inventor before: Wu Yueren Inventor before: Yao Jie Inventor before: Wang Xiaopeng Inventor before: Gu Bin Inventor before: Zhang Haifeng Inventor before: Wang Tao Inventor before: Xu Yingwu Inventor before: Wang Jianbin Inventor before: Zhen Li Inventor before: Fan Xuelian Inventor before: Wang Hongtao Inventor before: Zheng Guoxing Inventor before: Ye Xinyuan Inventor before: Zhong Junbin Inventor before: Xuan Feng Inventor before: Tao Zhefeng Inventor before: Zhu Lei |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |