CN108181446A - A kind of permafrost region tunnel-liner local ponding Frozen-thawed cycled effect behind is simulated, monitoring device - Google Patents
A kind of permafrost region tunnel-liner local ponding Frozen-thawed cycled effect behind is simulated, monitoring device Download PDFInfo
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- CN108181446A CN108181446A CN201810085478.7A CN201810085478A CN108181446A CN 108181446 A CN108181446 A CN 108181446A CN 201810085478 A CN201810085478 A CN 201810085478A CN 108181446 A CN108181446 A CN 108181446A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 26
- 230000000694 effects Effects 0.000 title claims abstract description 22
- 238000004088 simulation Methods 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000011435 rock Substances 0.000 claims abstract description 32
- 230000007613 environmental effect Effects 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 229910001868 water Inorganic materials 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 claims description 3
- 239000010440 gypsum Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 2
- 239000011229 interlayer Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 11
- 238000011160 research Methods 0.000 description 5
- 238000010257 thawing Methods 0.000 description 5
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 241000372132 Hydrometridae Species 0.000 description 1
- 230000018199 S phase Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009746 freeze damage Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A kind of permafrost region tunnel-liner local ponding Frozen-thawed cycled effect behind is simulated, monitoring device, to provide relatively reliable test data steadily in the long term for the design in permafrost region tunnel, construction and operation phase, so as to better ensure that the safety of permafrost region tunnel structure and economy.Including main body chamber, environmental chamber, detection device and Frozen-thawed cycled simulation system；The environmental chamber is set in main body chamber, the setting of tunnel lining structure model is positioned in environmental chamber, the local flooding simulation device in lining cutting behind is set on tunnel lining structure model outer wall, and the local flooding simulation device in lining cutting behind feeds pipeline by ponding and is connected with hanging on the ponding device for supplying on main body experiment box outer wall；In filling country rock simulation material outside tunnel lining structure model in the environmental chamber；The component of the detection device is embedded in country rock simulation material, is pasted on the inside and outside wall of tunnel lining structure model；The host of the Frozen-thawed cycled simulation system is set to outside main body chamber, and air-supply arrangement is set to the top of main body chamber side wall.
Description
Technical field
The present invention relates to traffic tunnel design with building field of engineering technology, more particularly to a kind of permafrost region tunnel-liner back of the body
Local ponding Frozen-thawed cycled effect simulation, monitoring device afterwards.
Background technology
With the rise of the Belt and Road strategy, permafrost region tunnel quantity is more and more, runs phase freezing damage in tunnel problem
It is more universal.Permafrost region tunnel operation phase freeze injury problem main forms hang ice, ditch for tunnel-liner frost heave cracking, infiltration
Freeze.Lining cutting frost heave cracking can cause tunnel durability, safety seriously to reduce, and active time is drastically reduced；Infiltration extension ice,
Ditch frozen problem makes accumulated ice in tunnel serious, and headroom reduces, and can not drive a vehicle.Achievement in research thinks lining cutting behind both at home and abroad at present
Repeatedly Frozen-thawed cycled process is one of principal element for causing operation phase freezing damage in tunnel problem to local ponding.
People serve as a contrast tunnel under tunnel-liner behind different ponding positions, ponding magnitude and repeated freeze-thaw cycle action condition
Block structure stress feature, failure mode shortage are understood in depth, and tunnel-liner behind ponding alimentation mechanism is still not clear.Pass through
Establish tunnel-liner local ponding Frozen-thawed cycled effect simulation behind, monitoring device carries out tunnel-liner local ponding freeze thawing behind
Tunnel structure mechanical characteristic model test under cycling condition obtains tunnel lining structure in different ponding positions, ponding with analysis
The stress characteristic of tunnel lining structure, failure mode and tunnel-liner behind ponding under the conditions of magnitude and freezing-thawing cycles
Recharge Mechanism, to improving permafrost region structure design of tunnel system；Optimize permafrost region tunnel structure guarded drainage, thermal retardation form；To freeze
Native area's tunnel structure problem provides test data, has a very important significance.
Existing domestic and foreign scholars study in terms of studying permafrost region tunnel structure, and the method mainly used has theory deduction, number
It is worth simulation, laboratory test etc..Wherein, theory deduction, method of numerical simulation are mainly in country rock Frost heaving mechanism, frost heave sheet
The research of the contents such as structure model, permafrost region country rock distribution law of temperature field, for the local ponding Frozen-thawed cycled in tunnel-liner behind
Research also not system, comprehensively in terms of effect.Often assumed condition limits excessive theory deduction research means, and correlated variables changes
Change can cause derivation result can not explicit expression, as a result also excessively idealize, it is limited to practice of construction directive significance；Numerical simulation
Although relatively reducing calculation amount, save and calculate the time, simulation process is to be based on theory, can not be with reality there are analog result
The deficiency that situation matches.Indoor model test is that tunnel scene is carried out reduced scale real simulation, has and coincide with actual conditions
Degree is high, it is at low cost the characteristics of, be to study the ideal research method of permafrost region tunnel structure.
Frost heave is made under the mainly fixed moisture content wall rock condition of existing permafrost region tunnel structure frost heave action simulation system
With simulation system, by adjusting country rock material moisture content, frost heave action is for tunnel under the conditions of realizing different surrounding rock grade, moisture content
The influence of road structure only accounts for specific country rock moisture content by not freezing to freezing shadow of the single process of frost heave for tunnel structure
It rings.Existing method and system can not consider seasonal frozen soil region tunnel commonly used in permafrost area vcehicular tunnel and railway tunnel
Road and is integrally frozen by the cyclic process of Tunnel Lining Cracks development and change under the influence of frost heave ringing repeatedly compared to country rock
Bulk value, local ponding position frost heave action magnitude is larger behind for lining cutting, and frost heave load assignment is uneven, is more easy to make liner structure
Generate stress concentration phenomenon, cause tunnel-liner local location crack, damage of lining form also with actual tunnel failure mode compared with
It is identical.
Invention content
The technical problems to be solved by the invention are to provide a kind of permafrost region tunnel-liner local ponding Frozen-thawed cycled behind
Effect simulation, monitoring device, with more preferable simulation difference hydrogeologic condition and including seasonal frozen soil region, permafrost area
Different surrounding rock rank realizes under different hydrogeologic conditions tunnel-liner different ponding positions, ponding magnitude and anti-behind
During multiple Frozen-thawed cycled effect, the simulation of tunnel-liner stress characteristic, failure mode, design, construction and fortune for permafrost region tunnel
Battalion's phase provides relatively reliable test data steadily in the long term, so as to better ensure that the safety of permafrost region tunnel structure and economy
Property.
Technical method is as follows used by the present invention solves above-mentioned technical problem：
A kind of permafrost region tunnel part ponding Frozen-thawed cycled effect simulation of the present invention, monitoring device, it is characterized in that：Including
Main body chamber, environmental chamber, detection device and Frozen-thawed cycled simulation system；The environmental chamber is set to main body experiment
In case, the setting of tunnel lining structure model is positioned in environmental chamber, lining cutting is set to carry on the back on tunnel lining structure model outer wall
Local flooding simulation device afterwards, local flooding simulation device feeds pipeline by ponding and hangs on main body chamber behind for lining cutting
Ponding device for supplying on outer wall is connected；In filling country rock simulation material outside tunnel lining structure model in the environmental chamber
Material；The component of the detection device is embedded in country rock simulation material, is pasted on the inside and outside wall of tunnel lining structure model
On；The host of the Frozen-thawed cycled simulation system is set to outside main body chamber, and air-supply arrangement is set to main body chamber side
The top of wall.
The beneficial effects are mainly as follows following aspects：
(1) experimental rig can realize simulation varying environment temperature, different freezing-thawing cycles, different permafrost region types,
Under the conditions of different tunnel cross-section forms and size, tunnel-liner behind ponding is into ice frost heave action to tunnel lining structure stress spy
Sign, failure mode.By adjusting high/low temperature difference and ascending, descending in Frozen-thawed cycled simulation system in Frozen-thawed cycled environment simulator
Warm cycle-index, to realize above-mentioned simulation.
(2) it according to the different ponding positions in lining cutting behind, water accumulating volume and ponding distribution form, using high intensity sponge, makes
Tunnel-liner behind flooding simulation material, to realize lining cutting different ponding positions, water accumulating volume and ponding distribution form condition behind
Under, influence of the ponding into ice frost heave action to tunnel-liner stress characteristic, failure mode.
(3) different surrounding rock grade, difference can be simulated by changing the match ratio of country rock simulation material in main body chamber
Under the conditions of moisture content, influence of the tunnel-liner behind ponding into ice frost heave action to tunnel-liner stress characteristic, failure mode.
(4) by adjusting the cooperation of tunnel-liner simulation material when shape, different tunnel-liner section shapes can be simulated
Under the conditions of formula, different tunnel cross-section sizes, different strength of lining, tunnel-liner behind ponding is into ice frost heave action to tunnel-liner
The influence of stress characteristic, failure mode.
Description of the drawings
This specification includes following three width attached drawing：
Fig. 1 is a kind of permafrost region tunnel-liner of the present invention local ponding Frozen-thawed cycled effect simulation, monitoring device behind
Front view；
Fig. 2 is a kind of permafrost region tunnel-liner of the present invention local ponding Frozen-thawed cycled effect simulation, monitoring device behind
Left view；
Fig. 3 is a kind of permafrost region tunnel-liner of the present invention local ponding Frozen-thawed cycled effect simulation, monitoring device behind
Vertical view.
Critical piece and corresponding label are shown in figure：Main body chamber 1, environmental chamber 2, air-supply arrangement 3, freeze thawing
Circulating analog system 4, tunnel lining structure simulation material 5, local water collecting device 6, ponding supply pipeline 7 are closed behind for lining cutting
Door 8, ponding device for supplying 9, environmental chamber monitoring component 10, main body chamber monitoring component 11, country rock simulation material
12。
Specific embodiment
The present invention is further described With reference to embodiment, specific embodiment be to the principle of the invention into
One step illustrates, does not limit the invention in any way, and is protected with the same or like technology of the present invention without departing from the present invention
Range.
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of permafrost region tunnel part ponding Frozen-thawed cycled effect simulation of the invention, monitoring
Device includes main body chamber 1, environmental chamber 2, detection device and Frozen-thawed cycled simulation system 4.The environmental chamber 2 is set
It is placed in main body chamber 1, the setting of tunnel lining structure model 5 is positioned in environmental chamber 2, tunnel lining structure model 5
Lining cutting local flooding simulation device 6 behind is set on outer wall, and local flooding simulation device 6 feeds pipeline by ponding behind for lining cutting
7 are connected with hanging on the ponding device for supplying 9 on 1 outer wall of main body chamber.In tunnel-liner knot in the environmental chamber 2
Country rock simulation material 12 is loaded outside structure model 5.The component of the detection device is embedded in country rock simulation material 12, is pasted on
On the inside and outside wall of tunnel lining structure model 5.The host of the Frozen-thawed cycled simulation system 4 is set to outside main body chamber 1,
Its air-supply arrangement 3 is set to the top of 1 side wall of main body chamber.
Different materials may be selected in the country rock simulation material 12 and match ratio simulates different Grades of Surrounding Rock, country rock simulation
Material 12 includes gypsum, water, quartz sand and blanc fixe etc..It is allocated as being loaded at least twice per mono- layer of 15cm during filling, often
Interlayer shaving after secondary filling, avoids being layered, and then manually vibrate 20 unit weights that country rock simulation material 12 is made to reach demand
It is required that.
Different tunnel cross-section sizes may be used in the tunnel-liner model 5 and different materials cooperation makes.It may be selected
Different tunnel cross-section sizes and material mix proportion simulate different Tunnel structures, size, including the shape of a hoof, circle, stalk
Shape, light section, middle section, big cross section, extra-large cross-section etc..The making material of tunnel-liner model 5 includes gypsum, water, quartz sand
Deng according to the shape for mold being poured into after certain match ratio mix demand being made.
Local flooding simulation device 6 is made of high intensity sponge behind for the lining cutting, and outside tunnel lining structure model 5
Wall fits closely, to realize the simulation of simulation tunnel-liner behind different ponding positions, ponding magnitude.And product is fixed in its center
7 end of water supply tube road, 7 outside package thermal insulation material of ponding supply pipeline.
The ponding device for supplying 9 is made of electronics water monitoring device, water tank, make-up pipe, is supervised by electronics water
It surveys device and records water situation of change in water tank automatically, ponding alimentation process is monitored to realize.
With reference to Fig. 1, the main body chamber 1 is welded to form by steel plate, and box top is consolidated with box body bolt, facilitates folding
Load country rock simulation material 12, tunnel-liner simulation material 5, lining cutting behind water collecting device 6.Box top is by test monitoring, product
Water supply demand opens up through-hole 11, and make-up pipe, monitoring cable is facilitated to draw.On 2 inner wall of environmental chamber and bottom wall
The insulating layer of certain Baidu is set, openable sealed door 8 is set on the side wall of side.
The host of the Frozen-thawed cycled simulation system 4 is made of large-scale program control type high/low temperature air conditioner and control system.
Program and heating and cooling cycle-index are controlled by the high/low temperature for setting host, heated up, are dropped as required by air-supply arrangement 3
Warm process.
The monitoring device includes earth pressure gauge, temperature detecting sensor, strain rosette, numerical control displacement acquisition instrument, electronic water
Measure monitoring device, static strain Acquisition Instrument or dynamic collecting instrument.12 inside of country rock simulation material carries out soil pressure by monitoring scheme
The arrangement of power meter, temperature sensor carries out strain rosette on 5 inner wall of tunnel-liner model, outer wall by monitoring scheme, numerical control displacement is adopted
Collect the arrangement of instrument.
By main body chamber 1, country rock simulation material 12, tunnel-liner model 5, lining cutting, local ponding fills behind as desired
Put 6, ponding supply pipeline 7, ponding device for supplying water tank 9 after setting completed, the host of setting Frozen-thawed cycled simulation system 4
Program is controlled, air-supply arrangement 3 is started to work.As 2 temperature of environmental chamber reduces, local water collecting device 6 is formed behind for lining cutting
Ponding is acted on into ice process, tunnel lining structure simulation material 5 by local ponding frost-heave force；And then with environmental chamber 2
Temperature gradually rises, and local ponding disappears into ice position frost heave action behind for lining cutting, and the water in ponding device for supplying water tank 9 leads to
It crosses ponding and feeds pipeline 7 to lining cutting local water collecting device flowing behind, generate ponding supply phenomenon；When 2 temperature of environmental chamber
When reducing again, local 6 frost heave action of water collecting device occurs again behind for lining cutting, so on circulate, ultimately forms freeze thawing
The local ponding position frost heave action in lining cutting behind under ringing.
It compared with the conventional method can more preferable simulation difference hydrogeologic condition and including frost zone compared with, the present invention
Area, the different surrounding rock rank in permafrost area, realize under different hydrogeologic conditions tunnel-liner behind different ponding positions,
When ponding magnitude and repeated freeze-thaw cycle act on, the simulation of tunnel-liner stress characteristic, failure mode is permafrost region tunnel
That designs, constructs and run the phase provides relatively reliable test data steadily in the long term, so as to better ensure that permafrost region tunnel knot
The safety and economy of structure.
The above only explains through diagrams, and a kind of permafrost region tunnel-liner of the present invention behind make by local ponding Frozen-thawed cycled
With simulation, some principles of monitoring device, it is not intended to the present invention being confined to shown and the concrete structure and applicable model
In enclosing, thus it is every it is possible that the corresponding modification being utilized and equivalent, belong to the apllied the scope of the claims of the present invention.
Claims (9)
1. a kind of permafrost region tunnel part ponding Frozen-thawed cycled effect simulation, monitoring device, it is characterized in that：Including main body chamber
(1), environmental chamber (2), detection device and Frozen-thawed cycled simulation system (4)；The environmental chamber (2) is set to main body examination
In tryoff (1), tunnel lining structure model (5) setting is positioned in environmental chamber (2), and tunnel lining structure model (5) is outside
Lining cutting local flooding simulation device (6) behind is set on wall, and local flooding simulation device (6) passes through product water supply tube behind for lining cutting
Road (7) is connected with hanging on the ponding device for supplying (9) on main body chamber (1) outer wall；In the environmental chamber (2) in
Tunnel lining structure model (5) loads country rock simulation material (12) outside；The component of the detection device is embedded in country rock simulation
In material (12), it is pasted on the inside and outside wall of tunnel lining structure model (5)；The host of the Frozen-thawed cycled simulation system (4)
It is set to main body chamber (1) outside, air-supply arrangement (3) is set to the top of main body chamber (1) side wall.
2. a kind of permafrost region tunnel part as described in claim 1 ponding Frozen-thawed cycled effect simulation, monitoring device, feature
It is：The country rock simulation material (12) simulates different Grades of Surrounding Rock, country rock simulation material with different materials and match ratio
(12) including gypsum, water, quartz sand and blanc fixe；It is allocated as being loaded at least twice per mono- layer of 15cm during filling, fill out every time
Interlayer shaving after dress avoids being layered, and the unit weight that then manually vibrating 20 times makes country rock simulation material (12) reach demand is wanted
It asks.
3. a kind of permafrost region tunnel part as described in claim 1 ponding Frozen-thawed cycled effect simulation, monitoring device, feature
It is：The tunnel-liner model (5) is made of different tunnel cross-section sizes and different materials cooperation.
4. a kind of permafrost region tunnel part as described in claim 1 ponding Frozen-thawed cycled effect simulation, monitoring device, feature
It is：Local flooding simulation device (6) is made of high intensity sponge behind for the lining cutting, with tunnel lining structure model (5) outside
Wall fits closely, and fixes ponding supply pipeline (7) water outlet in its center, package thermal insulating material outside ponding supply pipeline (7)
Material.
5. a kind of permafrost region tunnel part as claimed in claim 5 ponding Frozen-thawed cycled effect simulation, monitoring device, feature
It is：The ponding device for supplying (9) is made of electronics water monitoring device, water tank, make-up pipe, is filled by electronics water quantity monitoring
Water situation of change in automatic record water tank is put, ponding alimentation process is monitored to realize.
6. a kind of permafrost region tunnel part as claimed in claim 5 ponding Frozen-thawed cycled effect simulation, monitoring device, feature
It is：The main body chamber (1) is welded to form by steel plate, and box top is consolidated with box body bolt, and folding is facilitated to load country rock mould
Intend material (12), tunnel-liner simulation material (5), lining cutting behind water collecting device (6)；Box top is mended by test monitoring, ponding
Through-hole (11) is opened up to demand, make-up pipe, monitoring cable is facilitated to draw.
7. a kind of permafrost region tunnel part as claimed in claim 5 ponding Frozen-thawed cycled effect simulation, monitoring device, feature
It is：The insulating layer of certain Baidu is respectively provided on environmental chamber (2) inner wall and bottom wall, is set on the side wall of side openable
Sealed door (8).
8. a kind of permafrost region tunnel part as described in claim 1 ponding Frozen-thawed cycled effect simulation, monitoring device, feature
It is：The host of the Frozen-thawed cycled simulation system (4) is made of large-scale program control type high/low temperature air conditioner and control system.
9. a kind of permafrost region tunnel part as described in claim 1 ponding Frozen-thawed cycled effect simulation, monitoring device, feature
It is：The monitoring device includes earth pressure gauge, temperature detecting sensor, strain rosette, numerical control displacement acquisition instrument, electronics water quantity monitoring
Device, static strain Acquisition Instrument or dynamic collecting instrument.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810085478.7A CN108181446A (en) | 2018-01-29 | 2018-01-29 | A kind of permafrost region tunnel-liner local ponding Frozen-thawed cycled effect behind is simulated, monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810085478.7A CN108181446A (en) | 2018-01-29 | 2018-01-29 | A kind of permafrost region tunnel-liner local ponding Frozen-thawed cycled effect behind is simulated, monitoring device |
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Cited By (5)
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| CN109724865A (en) * | 2019-02-26 | 2019-05-07 | 中铁二院工程集团有限责任公司 | Tunnel-liner water pressure monitoring STS system test set and test method |
| CN111983193A (en) * | 2020-08-26 | 2020-11-24 | 西南交通大学 | High ground temperature country rock tunnel structure analogue test device |
| CN113532903A (en) * | 2021-08-20 | 2021-10-22 | 中铁隧道局集团有限公司 | Freezing and thawing cycle environment cold region tunnel simulation test platform |
| CN114184635A (en) * | 2021-12-21 | 2022-03-15 | 河北交通职业技术学院 | Seasonal frozen soil area tunnel frozen-expansion force simulation test device and use method thereof |
| CN114858847A (en) * | 2022-04-16 | 2022-08-05 | 西南交通大学 | Test device and method for simulating frost heaving induced crack development process of lining structure |
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