CN207662459U - A kind of lateral pipeclay effect test system with native face apparatus for leveling - Google Patents
A kind of lateral pipeclay effect test system with native face apparatus for leveling Download PDFInfo
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- CN207662459U CN207662459U CN201721735981.XU CN201721735981U CN207662459U CN 207662459 U CN207662459 U CN 207662459U CN 201721735981 U CN201721735981 U CN 201721735981U CN 207662459 U CN207662459 U CN 207662459U
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- push plate
- test
- lateral
- native face
- soil
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a kind of lateral pipeclays with native face apparatus for leveling to act on test system, this system includes test flume, load transfer device, test section, soil-finishing device, loading device and data acquisition device, vertical liftable push plate and pipeline integrated design, enhance the structural rigidity of pipe under test；S type pressure sensors are directly connect with pipeline, maximumlly reduce mechanical resistance；Equipped with native face apparatus for leveling, grading face can be not only scraped, but also play the role of compacting, highly shortened the time before experiment, improve test accuracy and test efficiency.
Description
Technical field
The utility model is related to one kind under the conditions of lateral big displacement, being responded by the model pipeline section earth resistance of cyclic load
And the test method of pipe motion track, more particularly to a kind of lateral pipeclay effect test system equipped with native face apparatus for leveling
System, belongs to ocean engineering field.
Background technology
With the development of society, China will sustainable growth for the demand of petroleum resources.Currently, since Land petroleum provides
Source is long-term, large-scale exploitation, and exploration and exploitation difficulty are continuously increased, and the mankind is forced gradually to move towards ocean from land, from shallow
Move towards deep-sea in sea.Submarine pipeline is because with transporting, oily ability is big, be laid with short time limit, can preferably adapt to the engineerings such as marine extreme environment
Superiority has become most economical effective, safe and efficient offshore oil and gas transportation resources.But with the increase of the depth of water, seabed
The total laying length of pipeline gradually adds up, and the complexity of operating environment also greatly improves, and therefore, maintains pipeline On-bottom stability
Cost also increase therewith.Have for the research of off-lying sea deep water and ultra-deep water area middle pipe line On-bottom stability technology important
Meaning.The submarine pipeline easily occurred level on the sea bed of profundal zone is laid on to complete buckling, and then causes the surrender of material broken
It is bad.Foundation soil is to an important factor for effect of contraction of pipeline is maintenance pipeline stability, therefore the soil body is to the level of shallow embedding pipeline
Drag playing mechanism is highly important project in the anti-buckling design of pipelines in deep sea.Moreover, pipeline is during military service, often
The hundreds of cycles opened and closed are often carried out because of maintenance or accident.Pipeline can be made in the process by cyclic load
With, and big displacement occurs in the horizontal direction and moves back and forth, pipeline is moved back and forth when studies have shown that is surrendered manages up to 5-20 times
Diameter.In addition, the angle of inclination in native face is very big to the stability influence on surface, the quality of native face flat conditions directly affects pipeclay
The result of interaction model experiment.
Utility model content
The shortcomings that the utility model is overcome in the prior art provides a kind of lateral pipeclay with native face apparatus for leveling
Effect test System and method for.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：
A kind of lateral pipeclay with native face apparatus for leveling acts on test system, this system include test flume, load transfer device,
Test section, soil-finishing device, loading device and data acquisition device, in the two sides of test flume along being above provided with horizontal guide
Rail；
The load transfer device is set on horizontal direction guiding rail, and load transfer device is pushed away by push plate, fixed sliding sash, pulley and liftable
Plate is constituted, and push plate is across between the horizontal direction guiding rail of test flume, and fixed sliding sash is arranged in push plate, and liftable push plate is set to
In fixed sliding sash, the lower end of liftable push plate is arranged T-shaped support plate, and T-shaped support plate is by being set to the square on test section surface
Shape slot stretches into test section and is clamped in the both sides of lubrication groove (this new-type pipeline section design can be very good to meet pipeline section and exist
The degree of freedom of vertical direction more really simulates the movement locus of pipeline, improves test accuracy)；
The soil-finishing device is set to the both sides of push plate, soil-finishing device by two montants, be set between montant pinch roller with
And clean-up scraper is constituted, pinch roller and clean-up scraper are connected and fixed by screw and two montants, and the two can be installed or removed respectively,
Clean-up scraper is such as disassembled, only carries out firming using pinch roller, or disassemble pinch roller, only carries out the smooth of native face using clean-up scraper；
The loading device includes leading screw holder, leading screw, shaft coupling, servo motor retarder and speed control case, leading screw
Holder is set at the test flume edge center vertical with horizontal direction guiding rail, and leading screw, leading screw are arranged between two leading screw holders
Driving member by being set to push plate bottom is connected with push plate, and one end of leading screw connects shaft coupling, and shaft coupling connects servo motor
Retarder, servo motor retarder connection speed control cabinet；
The data acquisition device includes S types pressure sensor, sound state strain acquirement instrument, computer and camera, institute
The bottom that S type pressure sensors are set to liftable push plate is stated, S types pressure sensor is connected with sound state strain acquirement instrument, moves
Static strain Acquisition Instrument is connected with computer, and computer connects camera, and (data acquisition device can be wanted according to different experiments
It asks, records related data, response curve is drawn, to study the change of the movement locus, foundation soil failure mode and earth resistance of pipeline
Law).
In the above-mentioned technical solutions, the test flume both sides are provided with tempered glass, tempered glass is transparent and indicates
Scale, to observe and record the deformation of foundation soil and the movement locus of pipeline.
In the above-mentioned technical solutions, the test section is the thin-walled hollow tube body of 0.8-1.2m long.
In the above-mentioned technical solutions, described that push plate bottom is provided with sliding block, make push plate that can horizontally guide rail be slided
It is dynamic that (transverse shifting of push plate drives, and is horizontal thrust by the power-conversion that loading system transmission comes and is applied to test section, makes
Test section moves reciprocatingly on the soil body).
In the above-mentioned technical solutions, the fixed sliding sash is made of two U-shaped cylinders, and the opening of U-shaped cylinder is oppositely arranged,
Pulley is set to U-shaped column body, and liftable push plate is set between pulley, can vertically be moved up and down.
In the above-mentioned technical solutions, the quantity of the fixed sliding sash is 2, and the two is oppositely arranged along push plate center line.
In the above-mentioned technical solutions, two montants of the soil-finishing device are connected by regulating mechanism with push plate, so that
The position that soil-finishing device can carry out vertical direction is adjusted.
A kind of lateral pipeclay effect test method with native face apparatus for leveling, carries out according to the following steps：
Step 1: measuring the physico-mechanical properties to banket, for cohesiveless soil, the mechanics index of physics that need to be measured is the soil body
Unit weight, moisture content, compactness and natural slop angle；For cohesive soil, the mechanics index of physics that need to be measured is soil body unit weight, aqueous
Rate, plastic limit, liquid limit and shearing strength；
Step 2: banketing into slot by layer, included native face flattening device is pushed, horizontally guide rail moves back and forth number
It is secondary, native face is flattened and is compacted using clean-up scraper and pinch roller；
Step 3: test section is placed, according to test requirements document Buried pipe；
Step 4: starting computer, camera, dynamic statical strain indicator successively, first corresponds to change instrument and is balanced, resets,
Then servo motor, the shuttling movement of the move distance and pipeline of setting experiment rate of loading and pipeline horizontal direction are opened
It counts, after pipeline setting in motion, deformeter acquires real-time change data of the soil body Lateral Resistance with piping displacement, video camera monitoring pipe
Line moves the movement locus of overall process and the deformation rule of the soil body；
Step 5: after the test, closing servo motor, deformeter and video camera successively, and test data is carried out whole
Reason and backup, final the data obtained all records in a computer, in case processing later and analysis.
In the above-mentioned technical solutions, in step 2, for cohesiveless soil, hit after often filling out one layer it is real and with it is scheduled hit it is real close
It spends to control, until reaching predetermined absolute altitude；For cohesive soil, same every layer will tamp uniformly, and cutting ring sample sample is used in combination, surveys soil
Density and moisture content, controlled in predetermined value, until reaching predetermined absolute altitude, after the completion of clay is laid with, it is also necessary to consolidate 24
Hour forms it into uniform entirety.
In the above-mentioned technical solutions, in step 3, the pipeline can be lowered into own wt in the soil body, can also people
For carry out predetermined depth processing.
In the above-mentioned technical solutions, in step 3, the lower part soil body thickness of the pipeline should be greater than 1 times of caliber (according to having
The result of calculation of member is limited it is found that the Plastic flow of soil region that pipeline transverse movement generates is less than 1 times of caliber in depth direction).
In the above-mentioned technical solutions, in step 4, the experiment rate of loading is 1-10mm/s.
Compared with prior art, the utility model has the beneficial effects that：
1, vertical liftable push plate and pipeline integrated design, enhance the structural rigidity of pipe under test, reduce completely
Practical Project mesopelagic (200 meter Dao1000 meter Shui Shen) sea pipe makes load maintainer fall below most the interference of pipe motion in the unconfined situation of vertical direction
It is low, to effectively simulate the process of horizontal direction shuttling movement of the pipeline in foundation soil body, improve the standard of result to be tested
True property.
2, S types pressure sensor is directly connect with pipeline, maximumlly reduces mechanical resistance, efficiently avoid due to
Mechanical resistance and the disadvantage for causing earth resistance test inaccurate.
3, data collecting system record the horizontal displacement of each moment pipeline during experiment, vertical displacement and by
Lateral Resistance situation of change, data collecting instrument by each sensor acquisition come data be transferred to computer, computer will be each
The data situation at moment is timely and is intuitively shown in face of test operator so that laboratory technician can monitor in real time
Test data makes adjustment in time to experiment to convenient.Meanwhile image acquisition system has recorded pipeline and foundation soil body
The forming process of mechanism and pipeline direction of motion front earth dam, to study soil resistance and pipe under different experimental conditions
The motion conditions of line.Test flume sealed around can also add water, the underwater operation state of simulated sea bottom pipeline.
4, since experiment has high requirement to native face planarization, often smooth native face needs to put into a large amount of manpower object
Power, but planarization effects are not fully up to expectations.The present apparatus is furnished with native face apparatus for leveling, can not only scrape grading face, but also have the work of compacting
With, highly shortened experiment before time, improve test accuracy and test efficiency.
Description of the drawings
Fig. 1 is a kind of lateral pipeclay effect test system schematic with native face apparatus for leveling.
Fig. 2 is a kind of lateral pipeclay effect test system side view with native face apparatus for leveling.
Fig. 3 is a kind of lateral pipeclay effect test system load transfer device detail drawing with native face apparatus for leveling.
Fig. 4 is a kind of lateral pipeclay effect test system test pipeline section detail drawing with native face apparatus for leveling.
A kind of lateral pipeclays with native face apparatus for leveling of Fig. 5 act on test system soil-finishing device detail drawing.
Fig. 6 is the earth resistance curve graph drawn according to experimental results.
Fig. 7 is the piping displacement path profile drawn according to experimental results.
Wherein, 1 is camera, and 2 be computer, and 3 be sound state strain acquirement instrument, and 4 be speed control case, and 5 be test flume,
6 be servo motor retarder, and 7 be shaft coupling, and 8 be leading screw holder, and 9 be leading screw, and 10 be horizontal direction guiding rail, and 11 be pinch roller, and 12 are
Clean-up scraper, 13 be push plate, and 14 be test section, and 15 be liftable push plate, and 16 be sliding block, and 17 be fixed sliding sash, and 18 be pulley, 19
It is S type pressure sensors for T-shaped support plate, 20.
Specific implementation mode
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in the figure, this system is adopted by test flume, load transfer device, test section, soil-finishing device, loading device and data
Six part of acquisition means is constituted, and test flume is long 3m, and wide 1.1m, the steel tank of high 1m, surrounding cell wall is to mark graduated tempering glass
Glass, in order to observe and record the deformation of foundation soil and the movement locus of pipeline, in the two sides of test flume along being above provided with level
Direction guiding rail；
The load transfer device is set on horizontal direction guiding rail, and load transfer device is pushed away by push plate, fixed sliding sash, pulley and liftable
Plate is constituted, and push plate is across between the horizontal direction guiding rail of test flume, and fixed sliding sash is arranged in push plate, and liftable push plate is set to
In fixed sliding sash, the lower end of liftable push plate is arranged T-shaped support plate, and T-shaped support plate is by being set to the square on test section surface
Shape slot stretches into test section and is clamped in the both sides of lubrication groove, the thin-walled hollow tube body of test section 1m long；
The soil-finishing device is set to the both sides of push plate, soil-finishing device by two montants, be set between montant pinch roller with
And clean-up scraper is constituted, pinch roller and clean-up scraper are connected and fixed by screw and two montants, and the two can be installed or removed respectively,
Clean-up scraper is such as disassembled, only carries out firming using pinch roller, or disassemble pinch roller, only carries out the smooth of native face using clean-up scraper；
The loading device includes leading screw holder, leading screw, shaft coupling, servo motor retarder and speed control case, leading screw
Holder is set at the test flume edge center vertical with horizontal direction guiding rail, and leading screw, leading screw are arranged between two leading screw holders
Driving member by being set to push plate bottom is connected with push plate, and one end of leading screw connects shaft coupling, and shaft coupling connects servo motor
Retarder, servo motor retarder connection speed control cabinet；
The data acquisition device includes S types pressure sensor, sound state strain acquirement instrument, computer and camera, institute
The bottom that S type pressure sensors are set to liftable push plate is stated, S types pressure sensor is connected with sound state strain acquirement instrument, moves
Static strain Acquisition Instrument is connected with computer, and computer connects camera, and (data acquisition device can be wanted according to different experiments
It asks, records related data, response curve is drawn, to study the change of the movement locus, foundation soil failure mode and earth resistance of pipeline
Law).
A kind of lateral pipeclay effect test system grading dress with native face apparatus for leveling in technical solution is stated in use
It sets when being tested, is carried out according to the following steps：
1, the preparation before on-test：The physico-mechanical properties to banket firstly the need of measurement.For cohesiveless soil, need
The mechanics index of physics of measurement is soil body unit weight, moisture content, compactness and natural slop angle；For cohesive soil, the physics that need to be measured
Mechanical index is soil body unit weight, moisture content, plastic limit, liquid limit and shearing strength.Then it bankets, and pushes included by layer into slot
Native face flattening device, horizontally guide rail move back and forth for several times, native face is flattened and is compacted using clean-up scraper and pinch roller.Its
In, for cohesiveless soil, hits real after often filling out one layer and hit real density with scheduled and controlled, until reaching predetermined absolute altitude；For
Cohesive soil, same every layer will tamp uniformly, and cutting ring sample sample is used in combination, and survey the density and moisture content of soil, controlled predetermined
Value, until reaching predetermined absolute altitude, after the completion of clay is laid with, it is also necessary to consolidate 24 hours and form it into uniform entirety.According to limited
The result of calculation of member is it is found that the Plastic flow of soil region that pipeline transverse movement generates is less than 1 times of caliber, therefore pipeline in depth direction
Lower part soil body thickness should be greater than 1 times of caliber.Then, test section is placed, according to test requirements document Buried pipe, pipeline can be
Own wt is lowered into the soil body, carry out predetermined depth processing that can also be artificial.
2, banket and test section place after the completion of, as shown in Figure 1 by loading device, load transfer device, data acquisition device
It is attached.
3, after on-test, start computer, camera, dynamic statical strain indicator successively.First correspond to become instrument be balanced,
It resets, then opens servo motor, setting experiment rate of loading and the move distance of pipeline horizontal direction and the cycle of pipeline
Times of exercise.Loading speed can change between 1-10mm/s, the maximum value of horizontal direction displacement by test flume size institute
Limitation.After pipeline setting in motion, deformeter acquires real-time change data of the soil body Lateral Resistance with piping displacement, video camera monitoring
Pipeline moves the movement locus of overall process and the deformation rule of the soil body.
4, after the test, it closes servo motor, deformeter and video camera successively, and test data arrange and standby
Part.Final the data obtained all records in a computer.
5, the statistics that data are carried out according to test result obtains the piping displacement road of earth resistance curve graph and Fig. 7 such as Fig. 6
Diameter figure acts on test by that can be obtained in figure by a kind of lateral pipeclay with native face apparatus for leveling described in the technical program
System and method for can measure the earth resistance of test section and the related data in piping displacement path, pipeclay can be used as mutual
The foundation that action model is established.
The utility model is described in detail above, but the content is only the preferred embodiment of the utility model,
It should not be considered as limiting the scope of the present invention.Equivalent change made according to the scope of application of this utility model with
Improve etc., it should all still belong within the patent covering scope of the utility model.
Claims (7)
1. a kind of lateral pipeclay with native face apparatus for leveling acts on test system, it is characterised in that：This system include test flume,
Load transfer device, test section, soil-finishing device, loading device and data acquisition device, in the two sides of test flume along being above provided with
Horizontal direction guiding rail；
The load transfer device is set on horizontal direction guiding rail, and load transfer device is by push plate, fixed sliding sash, pulley and liftable push plate structure
At push plate is across between the horizontal direction guiding rail of test flume, and fixed sliding sash is arranged in push plate, and liftable push plate is set to fixation
In sliding sash, the lower end of liftable push plate is arranged T-shaped support plate, and T-shaped support plate is by being set to the rectangular channel on test section surface
Stretch into test section and be clamped in the both sides of lubrication groove；
The soil-finishing device is set to the both sides of push plate, soil-finishing device by two montants, be set to pinch roller between montant and scrape
Native plate is constituted, and pinch roller and clean-up scraper are connected and fixed by screw and two montants, and the two can be installed or removed respectively, such as be torn open
Clean-up scraper is laid down, only carries out firming using pinch roller, or disassemble pinch roller, only carries out the smooth of native face using clean-up scraper；
The loading device includes leading screw holder, leading screw, shaft coupling, servo motor retarder and speed control case, leading screw holder
It is set at the test flume edge center vertical with horizontal direction guiding rail, leading screw is set between two leading screw holders, leading screw passes through
The driving member for being set to push plate bottom is connected with push plate, and one end of leading screw connects shaft coupling, and shaft coupling connects servo motor and slows down
Device, servo motor retarder connection speed control cabinet；
The data acquisition device includes S types pressure sensor, sound state strain acquirement instrument, computer and camera, the S types
Pressure sensor is set to the bottom of liftable push plate, and S types pressure sensor is connected with sound state strain acquirement instrument, and sound state is answered
Become Acquisition Instrument with computer to be connected, computer connects camera.
2. a kind of lateral pipeclay with native face apparatus for leveling according to claim 1 acts on test system, feature exists
In：The test flume both sides are provided with tempered glass, tempered glass is transparent and indicates scale.
3. a kind of lateral pipeclay with native face apparatus for leveling according to claim 1 acts on test system, feature exists
In：The test section is the thin-walled hollow tube body of 0.8-1.2m long.
4. a kind of lateral pipeclay with native face apparatus for leveling according to claim 1 acts on test system, feature exists
In：It is described that push plate bottom is provided with sliding block, make push plate that can horizontally guide rail be slided.
5. a kind of lateral pipeclay with native face apparatus for leveling according to claim 1 acts on test system, feature exists
In：The fixed sliding sash is made of two U-shaped cylinders, and the opening of U-shaped cylinder is oppositely arranged, and pulley is set to U-shaped column body,
Liftable push plate is set between pulley, can vertically be moved up and down.
6. a kind of lateral pipeclay with native face apparatus for leveling according to claim 1 acts on test system, feature exists
In：The quantity of the fixed sliding sash is 2, and the two is oppositely arranged along push plate center line.
7. a kind of lateral pipeclay with native face apparatus for leveling according to claim 1 acts on test system, feature exists
In：Two montants of the soil-finishing device are connected by regulating mechanism with push plate, so that soil-finishing device can carry out vertical direction
Position adjust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735981.XU CN207662459U (en) | 2017-12-13 | 2017-12-13 | A kind of lateral pipeclay effect test system with native face apparatus for leveling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735981.XU CN207662459U (en) | 2017-12-13 | 2017-12-13 | A kind of lateral pipeclay effect test system with native face apparatus for leveling |
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| Publication Number | Publication Date |
|---|---|
| CN207662459U true CN207662459U (en) | 2018-07-27 |
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ID=62940998
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721735981.XU Expired - Fee Related CN207662459U (en) | 2017-12-13 | 2017-12-13 | A kind of lateral pipeclay effect test system with native face apparatus for leveling |
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| CN (1) | CN207662459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884015A (en) * | 2017-12-13 | 2018-04-06 | 天津大学 | A kind of lateral pipeclay effect test system and method with native face apparatus for leveling |
-
2017
- 2017-12-13 CN CN201721735981.XU patent/CN207662459U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884015A (en) * | 2017-12-13 | 2018-04-06 | 天津大学 | A kind of lateral pipeclay effect test system and method with native face apparatus for leveling |
| CN107884015B (en) * | 2017-12-13 | 2023-11-28 | 天津大学 | Lateral pipe soil action testing system and method with soil surface leveling device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20201213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |