CN108776011A - A kind of duct pieces of shield tunnel joint seal pad leak test device - Google Patents
A kind of duct pieces of shield tunnel joint seal pad leak test device Download PDFInfo
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- CN108776011A CN108776011A CN201810449853.1A CN201810449853A CN108776011A CN 108776011 A CN108776011 A CN 108776011A CN 201810449853 A CN201810449853 A CN 201810449853A CN 108776011 A CN108776011 A CN 108776011A
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- outer course
- gasket
- washer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/005—Sealing rings
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of duct pieces of shield tunnel joint seals to pad leak test device, to carry out leak test to elastic packing washer, the experimental rig includes that the upper test specimen module for forming experiment cavity and lower test specimen module are mutually fastened by displacement control unit, the experiment cavity therefrom between around successively include interior road airtight cavity, interior road gasket trapezoidal groove, outer course airtight cavity and outer course gasket trapezoidal groove, road elastic packing washer in setting in the interior road gasket trapezoidal groove, outer course elastic packing washer is set in the outer course gasket trapezoidal groove, multiple measurements being connected to experiment cavity are opened up in the upper test specimen module loads channel.Compared with prior art, the present invention has many advantages, such as that real simulation, double sealing pad waterproof are laid, design joint open and offset operating mode.
Description
Technical field
The present invention relates to existing shield tunnel seam waterproof engineering fields, more particularly, to a kind of duct pieces of shield tunnel seam
Gasket leak test device.
Background technology
Shield tunnel percolating water has been current one of the Major Diseases for influencing shield tunnel safety and operation, with a large amount of
Subway, road tunnel and more river shield tunnel over strait is built and the use that puts into effect, Tunnel Water Leakage disease have caused in the industry
The concern of many scholars.According to the survey, most of shield tunnel percolating water is happened at joint seam root, so if effectively
Ground judges that the extent of injury of the seam of percolating water has occurred for the waterproof ability of seam and assessment, is in current shield tunnel project
Urgent problem to be solved.Water resistance prediction to the seam not leaked, the percolating water of the seam to percolating water has occurred
Amount assessment is the key technology content for improving the long-term water resistance of shield tunnel, not only has leading technical meaning, have more
Greatly society and economic implications.
In shield tunnel seam waterproof processing at present, mostly uses lay single track or two pass EPDM (ethylene-propylene-diene monomers greatly
Glue) mode of elastic sealing gasket realizes that action principle is the contact stress sealing between gasket after segment joint densification
Sealing.
For the watertightness test of common elastic sealing gasket of shield tunnel, existing application No. is 201010145789.1
A kind of elastic sealing gasket of shield tunnel " "-" type " watertightness verifying attachment, the device are disclosed in Chinese invention patent specification
The verifying attachment respectively opens rectangular channel on the surface of upper and lower two cover plates, by elastic sealing gasket closing at after frame-type use glue sticking
In the trench, gasket is compressed with bolt, the different joint opens of section of jurisdiction is simulated using gasket, while installing and limiting in device side wall
Position plate, to simulate the faulting of slab ends situation of section of jurisdiction.However as the underground space exploitation toward deep under ground development, shield tunnel also to
Big cross section, long range, high hydraulic pressure direction develop, the long-term waterproof of seam can be no longer effectively ensured in the laying of single track gasket
Performance, therefore recommend by the way of two pass even multi layer waterproof under complicated high hydraulic condition.As it can be seen that above-mentioned patent is neither
The common requirements on engineer application can be met, the theoretical research of gasket seepage Mechanism can not be met.
It is existing that application No. is 201510410037.6 Chinese invention patent specifications to disclose a kind of shield tunnel elasticity
Gasket " twice waterproof " watertightness verifying attachment, the device can simulate the permeability of elastic sealing gasket and concrete surface
Can, however its there are gaskets to be difficult to compress to close in specific implementation process, the intractable practical application of section leakproofness is difficult
Topic.And in Practical Project, gasket corner is the position most easily leaked, and above-mentioned device is only capable of testing a bit of close
The water resistance of packing, can not effective water resistance of the simulation with Corner Seal pad, with the larger gap of physical presence.
The existing experimental rig to gasket seepage Mechanism is very few, and there is also some masters for only existing apparatus
Disadvantage is wanted, is summarized as follows：(1) the percolating water process of gasket is not studied, is unable to measure the seepage discharge of gasket；
(2) water resistance that the gasket with corner can not be simulated, with the larger gap of physical presence；(3) sample dimensions are smaller, size effect
It should influence big.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of duct pieces of shield tunnel
Joint seal pads leak test device.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of duct pieces of shield tunnel joint seal pad leak test device, to carry out leakage examination to elastic packing washer
It tests, which includes that the upper test specimen module for forming experiment cavity and lower test specimen mould are mutually fastened by displacement control unit
Block, the experiment cavity therefrom between include that interior road airtight cavity, interior road gasket trapezoidal groove, outer course are closed successively around
Cavity and outer course gasket trapezoidal groove, the interior road elastic packing washer of the interior setting of the interior road gasket trapezoidal groove, institute
Outer course elastic packing washer is set in the outer course gasket trapezoidal groove stated, multiple and experiment is opened up in the upper test specimen module
The measurement of cavity connection loads channel.
The interior road airtight cavity is square cavity, and the outer course airtight cavity is the square annular housing being closed, institute
The outer course gasket trapezoidal groove and Nei Dao gasket trapezoidal grooves stated are the square ring-shaped groove of closure.
The upper test specimen module and lower test specimen module are square, and the displacement control unit includes multiple is uniformly distributed
Bolt hole and setting at upper test specimen module and lower test specimen module edge are stitched in upper test specimen module and lower test specimen module edge
Spacing shim in gap, upper test specimen module and lower test specimen module control shield tunnel seam joint open by bolt and spacing shim
With fissure of displacement amount.
Described measurement load channel include the interior road water-pressure survey hole of road airtight cavity and water-pressure survey device in connection,
In connection road airtight cavity with interior road paddle hole, connect the outer course water-pressure survey hole of outer course airtight cavity and water-pressure survey device
And the outer course paddle hole of connection outer course airtight cavity and Water hydraulic static pressure loading device.
The spacing shim is composed of the cuboid cast iron gasket of 2mm, 4mm, 6mm, 8mm and 10mm thickness, is used
With combination control shield tunnel seam joint open and fissure of displacement amount.
It is equipped with control valve in the interior Water hydraulic static pressure loading hole and outer Water hydraulic static pressure loading hole, to control opening for Water hydraulic static pressure loading
Begin and suspends.
The outer course elastic packing washer is by sealing pad washer and outer course lower sealing washer to swaging at described on outer course
Interior road elastic packing washer by sealed on interior road pad washer and Nei Dao lower sealing washers to swaging at.
Sealing pad washer on pad washer and Nei Dao is sealed on the outer course, and upper test specimen module is bonded in by glue respectively
Upper outer course gasket trapezoidal groove and the roads Shang Nei gasket trapezoidal groove in, it is close under the outer course lower sealing washer and Nei Dao
Seal washer is bonded in the lower outer course gasket trapezoidal groove and the roads Xia Nei gasket trapezoid-shaped trench of lower test specimen module by glue respectively
In slot.
The application method of the experimental rig includes the following steps：
1) test specimen module up and down is made according to the size of experiment seal washer；
2) experiment seal washer is pasted in the groove of upper and lower test specimen module, and uses displacement control unit, will sealed
The control of test specimen seam is padded in setting joint open；
3) control valve in outer course water-pressure survey hole is opened, the external water-pressure survey device of interior road airtight cavity and hydraulic pressure add
It carries and sets, load hydraulic pressure to interior road seal washer waterproof failure and log；
4) seal washer leakage passage in the roads Dai Nei is stablized, and measures unit interval Nei Neidao seal washer percolation flow velocity and remembers
Record；
5) it waits for that outer course airtight cavity is full of water, closes the control valve in outer water-pressure survey hole, continue load hydraulic pressure to outer
Road seal washer waterproof failure and log.
Compared with prior art, the present invention has the following advantages：
The present invention has obtained two confined spaces by two seals washer inside and outside setting, realizes joint seal pad and oozes
Leak the real simulation of overall process；By default double sealing washer, the seam waterproof laid to double sealing pad waterproof is realized
The test of ability；By different joint opens and the operating condition design of offset, realize to the elastic sealing gasket under applying working condition
Integration test, the theoretical research that seepage Mechanism is padded for joint seal provide test basis, are current seam water leakage defect
Assessment provides method, is also conducive to the prevention and control of seam water leakage defect, not only has leading technical meaning, more
There are greatly society and economic implications.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the structural schematic diagram of upper test specimen module.
Fig. 3 is the structural schematic diagram of lower test specimen module.
Fig. 4 is the structural schematic diagram of spacing shim.
Fig. 5 is schematic partial cross-sectional view.
Description of symbols in figure：
1, upper test specimen module, 2, lower test specimen module, 3, displacement control unit, 4, spacing shim, 5, water-pressure survey device, 6,
Water hydraulic static pressure loading hole, 7, outer course elastic packing washer, 8, interior road elastic packing washer, 9, interior road airtight cavity, 10, outer course closed chamber
Body, 11, bolt hole, 12, upper outer course gasket trapezoidal groove, 13, the roads Shang Nei gasket trapezoidal groove, 14, measure load channel,
21, bolt hole, 22, lower outer course gasket trapezoidal groove, 23, the roads Xia Nei gasket trapezoidal groove, 51, interior road water-pressure survey hole,
52, outer course water-pressure survey hole, 61, interior road paddle hole, 62, outer course paddle hole, 71, seal pad washer on outer course, 72, outer course
Lower sealing washer, 81, seal pad washer on interior road, 82, interior road lower sealing washer.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Illustrate that embodiments of the present invention, those skilled in the art can be by this specification below by way of specific specific example
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
It should be clear that structure, ratio, size etc. depicted in this specification institute accompanying drawings, only coordinating specification to be taken off
The content shown is not limited to the enforceable qualifications of the present invention so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall and obtain the model that can cover in disclosed technology contents
In enclosing.
Embodiment 1：
A kind of duct pieces of shield tunnel joint seal in the implementation case pads leak test device, as shown in Figure 1, by upper
Test specimen module connects control with the bolt of lower test specimen module, and upper-lower seal washer is respectively formed the inside and outside twice of closure to pressure
Seal washer, and the cavity of two closures is formed, pass through the hydraulic pressure testing device and Water hydraulic static pressure loading device of connection.It can be achieved to height
Hydraulic pressure punctures the accurate simulation of the process of inside and outside two seals pad successively, to measure inside and outside two seals pad authentic and validly
Waterproof ability threshold value, and leakage process of the interior road gasket after breakdown under certain hydraulic pressure is recorded, the gasket of record is anti-
The data such as outlet capacity threshold value, variation in water pressure process, water amount of seepage provide reliable experiment for the seepage Mechanism research of gasket
Foundation.
The device mainly includes：Upper test specimen module, lower test specimen module, displacement control device, spacing shim, water-pressure survey dress
It sets and Water hydraulic static pressure loading channel.
As shown in Fig. 2, upper test specimen module 1 includes：The upper outer course sealing of eight bolts hole 11, closure for Bit andits control
Trapezoidal groove 12, the roads the Shang Nei gasket trapezoidal groove 13 being closed and trepanning are padded (namely for connection water-pressure survey device 5
Interior road water-pressure survey hole 51, outer course water-pressure survey hole 52, interior road paddle hole 61 and outer course paddle hole 62) measurement load it is logical
Road 14.Sealing pad washer 81 on pad washer 71 and Nei Dao is sealed before on-test, on outer course to be both needed to use duct pieces of shield tunnel seam
The roads the Shang Nei gasket trapezoid-shaped trench that gasket special glue is pasted on the upper outer course gasket trapezoidal groove 12 of closure and is closed respectively
It is consistent with Practical Project in slot 13.Four reserved measurement load channels 14 are equipped with general screw thread, can be filled with water-pressure survey
It sets and is connected with Water hydraulic static pressure loading device.
As shown in figure 3, lower test specimen module 2 includes：The lower outer course sealing of eight bolts hole 21, closure for Bit andits control
The roads the Xia Nei gasket trapezoidal groove 23 for padding trapezoidal groove 22 and being closed.Before on-test, pad washer 72 and interior is sealed on outer course
Pad washer 82 is sealed on road to be both needed to be pasted on the lower outer course sealing of closure respectively with duct pieces of shield tunnel joint seal pad special glue
It pads in trapezoidal groove 22 and the roads the Xia Nei gasket trapezoidal groove 23 being closed, it is consistent with Practical Project.
Fig. 4 is the schematic diagram of spacing shim, and the control of joint open and the fissure of displacement amount when experiment is by being now that gasket is accurately controlled
System.Monolithic gasket is that length is a, and width b, thickness is the cuboid of c, and material is cast iron, and in compression, deformation is negligible.Pad
The thickness of piece is differed from 2mm to 10mm, and arbitrary combination can meet the requirement of different joint opens and fissure of displacement amount in experiment.
Fig. 5 is the schematic partial cross-sectional view for the interior outer course seal washer composition being closed.When experiment, by upper-lower seal washer pair
Swaging and carries out water resistance test at the seal washer water-proof system of inside and outside twice.
Above-mentioned upper test specimen module and lower test specimen module preferentially use the higher steel of precision.However for more realistically mould
Concrete pipe sheet in quasi- Practical Project, also can be used concreting, but need to pay special attention to the precision poured and concrete
The corner treatments of test block.It is both needed to carry out specific strength check and verification before specific test block making.
A kind of duct pieces of shield tunnel joint seal in the present embodiment pads leak test device, and test procedure includes：
S1. according to the gasket groove dimensions of subjects, including width, depth, the gradient, above-mentioned test specimen up and down is designed
Module；
S2. according to the practical joint open fissure of displacement amount demand surveyed, required Bit andits control gasket is made, it is preferable that general
It is 8mm to take joint open, and fissure of displacement amount is 15mm.Therefore make the gasket that thickness is 2mm, 4mm, 6mm, 8mm, 10mm, 15mm, it is sufficient to full
The control requirement of foot experiment joint open and fissure of displacement amount；
S3. the sealing pad washer of required experiment is pasted on respectively in the groove of upper and lower test specimen module, and using gasket with
And Bit andits control bolt, it is the module of test specimen up and down for posting seal washer is required to pressure by experiment, it is preferable that control joint open
In 8mm；
S4. the valve of road airtight cavity in opening, while water is injected, air is discharged.It waits for that air discharge finishes, connects water
Compression testing device starts simultaneously at the Water hydraulic static pressure loading of interior road airtight cavity.Load hydraulic pressure to interior road seal washer waterproof failure and is remembered
Record test result.
S5. outer course airtight cavity valve is opened, and water is filled in outer course airtight cavity, air is discharged；
S6. outer course seal cavity valve is closed, and channel is connected into measure of water device；
S7. road airtight cavity valve in opening, and continue to load hydraulic pressure, interior road seal washer waterproof failure, in certain water
Pressure, water continue to leak out to outer course airtight cavity from interior road cavity by interior road sealing pad washer, measure and pass through in the unit interval
The water and record of interior road seal washer leakage；
S8. outer course airtight cavity valve is closed, channel is connected into water-pressure survey device.Continue to load interior road airtight cavity water
Pressure, until outer course seal washer waterproof failure and continuing variation in water pressure data.
S9. the inside and outside equal waterproof failure of two seals washer, off-test.Test specimen is replaced, repeating S3-S8 can measure in difference
In the case of amount, fissure of displacement amount, the leakage process and waterproof threshold values of the seal washer of different types.
The present invention has obtained two confined spaces by two seals washer inside and outside setting, realizes joint seal pad and oozes
Leak the real simulation of overall process；By default double sealing washer, the seam waterproof laid to double sealing pad waterproof is realized
The test of ability；By different joint opens and the operating condition design of faulting of slab ends amount, realize to the elastic sealing gasket under applying working condition
Integration test, the theoretical research that seepage Mechanism is padded for joint seal provide test basis, are current seam water leakage defect
Assessment provides method, is also conducive to the prevention and control of seam water leakage defect, not only has leading technical meaning, more
There are greatly society and economic implications.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (9)
1. a kind of duct pieces of shield tunnel joint seal pads leak test device, to carry out leak test to elastic packing washer,
It is characterized in that, the experimental rig includes mutually fastening the upper test specimen module for forming experiment cavity by displacement control unit (3)
(1) and lower test specimen module (2), the experiment cavity therefrom between include that interior road airtight cavity (9), interior road seal successively around
Pad trapezoidal groove, outer course airtight cavity (10) and outer course gasket trapezoidal groove (12), the interior road gasket trapezoid-shaped trench
Road elastic packing washer (8) in setting in slot, the outer course gasket trapezoidal groove is interior to be arranged outer course elastic packing washer
(7), multiple measurements being connected to experiment cavity are opened up on the upper test specimen module (1) loads channel (14).
2. a kind of duct pieces of shield tunnel joint seal according to claim 1 pads leak test device, which is characterized in that institute
The roads Shu Nei airtight cavity (9) is square cavity, and the outer course airtight cavity (10) is the square annular housing being closed, described
Outer course gasket trapezoidal groove and Nei Dao gasket trapezoidal grooves are the square ring-shaped groove of closure.
3. a kind of duct pieces of shield tunnel joint seal according to claim 1 pads leak test device, which is characterized in that institute
The upper test specimen module (1) and lower test specimen module (2) stated are square, and the displacement control unit (3) includes multiple is uniformly distributed
In the bolt hole of upper test specimen module (1) and lower test specimen module (2) edge and setting in upper test specimen module (1) and lower test specimen mould
Spacing shim (4) in block (2) edge slot, upper test specimen module (1) and lower test specimen module (2) pass through bolt and spacing shim
(4) shield tunnel seam joint open and fissure of displacement amount are controlled.
4. a kind of duct pieces of shield tunnel joint seal according to claim 1 pads leak test device, which is characterized in that institute
Measurement load channel (14) stated includes the interior road water-pressure survey hole of road airtight cavity (9) and water-pressure survey device (5) in connection
(51), road airtight cavity (9) and interior road paddle hole (61) in connecting connect outer course airtight cavity (10) and water-pressure survey device
(5) the outer course paddle hole in outer course water-pressure survey hole (52) and connection outer course airtight cavity (10) and Water hydraulic static pressure loading device
(62)。
5. a kind of duct pieces of shield tunnel joint seal according to claim 3 pads leak test device, which is characterized in that institute
The spacing shim (4) stated is composed of the cuboid cast iron gasket of 2mm, 4mm, 6mm, 8mm and 10mm thickness, to combine control
Shield tunnel seam joint open processed and fissure of displacement amount.
6. a kind of duct pieces of shield tunnel joint seal according to claim 4 pads leak test device, which is characterized in that institute
It is equipped with control valve in the interior Water hydraulic static pressure loading hole and outer Water hydraulic static pressure loading hole stated, to control the beginning and pause of Water hydraulic static pressure loading.
7. a kind of duct pieces of shield tunnel joint seal according to claim 2 pads leak test device, which is characterized in that institute
The outer course elastic packing washer (7) stated is by sealing pad washer (71) and outer course lower sealing washer (72) to swaging into institute on outer course
The roads Shu Nei elastic packing washer (8) by interior road seal pad washer (81) and interior road lower sealing washer (82) to swaging at.
8. a kind of duct pieces of shield tunnel joint seal according to claim 7 pads leak test device, which is characterized in that institute
Sealing pad washer (81) on pad washer (71) and interior road is sealed on the outer course stated, and upper test specimen module (1) is bonded in by glue respectively
Upper outer course gasket trapezoidal groove (12) and the roads Shang Nei gasket trapezoidal groove (13) in, the outer course lower sealing washer
(72) and interior road lower sealing washer (82) is bonded in the lower outer course gasket trapezoidal groove of lower test specimen module (2) by glue respectively
(22) and in the roads Xia Nei gasket trapezoidal groove (23).
9. a kind of duct pieces of shield tunnel joint seal according to claim 1 pads leak test device, which is characterized in that should
The application method of experimental rig includes the following steps：
1) test specimen module up and down is made according to the size of experiment seal washer；
2) experiment seal washer is pasted in the groove of upper and lower test specimen module, and uses displacement control unit, gasket is tried
The control of part seam is in setting joint open；
3) control valve in outer course water-pressure survey hole is opened, the external water-pressure survey device of interior road airtight cavity and Water hydraulic static pressure loading dress
It sets, load hydraulic pressure to interior road seal washer waterproof failure and log；
4) seal washer leakage passage in the roads Dai Nei is stablized, and measures unit interval Nei Neidao seal washer percolation flow velocity and records；
5) it waits for that outer course airtight cavity is full of water, closes the control valve in outer water-pressure survey hole, it is close to outer course to continue load hydraulic pressure
Seal washer waterproof failure and log.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449853.1A CN108776011A (en) | 2018-05-11 | 2018-05-11 | A kind of duct pieces of shield tunnel joint seal pad leak test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449853.1A CN108776011A (en) | 2018-05-11 | 2018-05-11 | A kind of duct pieces of shield tunnel joint seal pad leak test device |
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| CN108776011A true CN108776011A (en) | 2018-11-09 |
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| CN201810449853.1A Pending CN108776011A (en) | 2018-05-11 | 2018-05-11 | A kind of duct pieces of shield tunnel joint seal pad leak test device |
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Cited By (11)
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| CN109724755A (en) * | 2019-02-02 | 2019-05-07 | 河海大学 | Shield gasket anti-permeability performance visualizes evaluation test device and its test method |
| CN109946027A (en) * | 2019-04-24 | 2019-06-28 | 天津大学 | A kind of duct pieces of shield tunnel seam waterproof method for testing performance |
| CN110031159A (en) * | 2019-05-24 | 2019-07-19 | 西南交通大学 | A kind of duct pieces of shield tunnel seam waterproof experimental rig |
| CN110031324A (en) * | 2019-04-24 | 2019-07-19 | 天津大学 | Duct pieces of shield tunnel seam waterproof performance test apparatus |
| CN111651945A (en) * | 2020-06-24 | 2020-09-11 | 中铁第四勘察设计院集团有限公司 | Method for acquiring waterproof capacity of double-channel sealing gasket |
| CN114509350A (en) * | 2022-02-15 | 2022-05-17 | 中南大学 | Segment joint double-channel waterproof test device and method for simulating hydraulic action of inner cavity |
| CN114563137A (en) * | 2022-04-28 | 2022-05-31 | 湖南大学 | Device and method for testing waterproof performance of double-channel sealing gasket of shield tunnel joint |
| CN115015083A (en) * | 2022-06-17 | 2022-09-06 | 中交第二公路勘察设计研究院有限公司 | Device and method for testing waterproof performance of double-channel sealing gasket of shield tunnel segment joint |
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| CN116952483A (en) * | 2023-07-24 | 2023-10-27 | 盾构及掘进技术国家重点实验室 | Low-vacuum tunnel joint micro-leakage test device and test method thereof |
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| CN110031324B (en) * | 2019-04-24 | 2020-05-05 | 天津大学 | Shield tunnel segment joint waterproof performance test device |
| CN110031159B (en) * | 2019-05-24 | 2024-06-04 | 西南交通大学 | Waterproof test device for shield tunnel segment joint |
| CN110031159A (en) * | 2019-05-24 | 2019-07-19 | 西南交通大学 | A kind of duct pieces of shield tunnel seam waterproof experimental rig |
| CN111651945A (en) * | 2020-06-24 | 2020-09-11 | 中铁第四勘察设计院集团有限公司 | Method for acquiring waterproof capacity of double-channel sealing gasket |
| CN111651945B (en) * | 2020-06-24 | 2022-03-29 | 中铁第四勘察设计院集团有限公司 | Method for acquiring waterproof capacity of double-channel sealing gasket |
| CN114509350A (en) * | 2022-02-15 | 2022-05-17 | 中南大学 | Segment joint double-channel waterproof test device and method for simulating hydraulic action of inner cavity |
| CN114509350B (en) * | 2022-02-15 | 2024-02-23 | 中南大学 | Segment joint double-channel waterproof test device and method for simulating inner cavity water pressure effect |
| CN114563137A (en) * | 2022-04-28 | 2022-05-31 | 湖南大学 | Device and method for testing waterproof performance of double-channel sealing gasket of shield tunnel joint |
| CN115015083A (en) * | 2022-06-17 | 2022-09-06 | 中交第二公路勘察设计研究院有限公司 | Device and method for testing waterproof performance of double-channel sealing gasket of shield tunnel segment joint |
| CN115015083B (en) * | 2022-06-17 | 2024-09-20 | 中交第二公路勘察设计研究院有限公司 | Device and method for testing waterproof performance of double-channel sealing gasket of shield tunnel segment joint |
| CN115356187A (en) * | 2022-07-19 | 2022-11-18 | 河海大学 | Shield tunnel segment joint leakage risk discrimination analysis method based on rubber test |
| CN116952483A (en) * | 2023-07-24 | 2023-10-27 | 盾构及掘进技术国家重点实验室 | Low-vacuum tunnel joint micro-leakage test device and test method thereof |
| CN117890032A (en) * | 2024-02-19 | 2024-04-16 | 北京城建设计发展集团股份有限公司 | Automatic water pressure testing system for visual sealing gasket and fitting testing method thereof |
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Application publication date: 20181109 |