CN202420884U - Fluid-solid coupling model test system for sea bed tunnel - Google Patents
Fluid-solid coupling model test system for sea bed tunnel Download PDFInfo
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- CN202420884U CN202420884U CN2011205147358U CN201120514735U CN202420884U CN 202420884 U CN202420884 U CN 202420884U CN 2011205147358 U CN2011205147358 U CN 2011205147358U CN 201120514735 U CN201120514735 U CN 201120514735U CN 202420884 U CN202420884 U CN 202420884U
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Abstract
The utility model discloses a fluid-solid coupling model test system for a sea bed tunnel, which includes a high-intensity rigid testing structural rack, wherein a high-intensity toughened glass seal box is pasted in the high-intensity rigid testing structural rack; a real-time monitoring display system is erected at the top end of the testing structural rack; a water inlet is arranged in a top cover of the testing structural rack; a water pipe connected with a pressure water tank is arranged in the water inlet; a fluid-solid coupling similar material is laid in the toughened glass box; an optical fiber displacement strain testing sensor connected with a computer control platform is laid in the fluid-solid coupling similar material through a line; and the computer control platform is connected with the real-time monitoring display system through a line. The fluid-solid coupling model test system provided by the utility model has simple structure, high intensity and excellent water sealing performance, can simulate the seepage field and the stress field under a real site condition, can be used for straightforward observing the adjacent rock seepage characteristics of the sea bed tunnel during the construction process, adjacent rock rupture during the loading process and the water inrush process, and can simulate the plane and quasi-3 D fluid-solid coupling model test.
Description
Technical field
The utility model relates to a kind of structural model test technology, the solid coupling model pilot system of especially a kind of seabed tunnel stream.
Background technology
Numerous domestic scientific research institutions have successively carried out model investigation to large-scale water power, traffic and mine engineering problem, and have obtained large quantities of achievements in research.
(1) " Wuhan Water Conservancy and Electric Power Univ's journal " the 5th phase in 1992 has been introduced a kind of plane stress test unit and loading system; This test unit is the afterburning frame of 150cm * 140cm enclosed planar rigidity; The loading system of being made up of pressure cell, air lift pump, pipeline, tensimeter loads; This system is that the plane loads, and can't realize three-dimensional the loading.
(2) " rock mechanics and engineering journal " the 22nd phase in 2004 has been introduced three a kind of YD of Headquarters of the General Staff engineer scientific research-multi-functional simulation test device of A type Geotechnical Engineering.This plant bulk is 160cm * 140cm * 40cm, is the areal model testing table, can't change moulded dimension and three-dimensional loading simulation.
(3) the application people is a Shandong University, and one Chinese patent application numbers 201110039078.0 has been introduced a kind of large-scale independent assortment Pin formula high-ground stress underground project model test device.Have model elevating translational acting trailer system, can be applicable to the plane and the three-qimension geomechanics model exporiment of Geotechnical Engineering under the high-ground stress condition.But can't water filling in this system, can not flow the simulation of solid coupling test.
(4) author is luxuriant upright unit, has introduced the solid coupling model test unit of a kind of gravity stress field flow in the doctor of the Shandong University thesis in 2010 " submerged tunnel adjoining rock stability Journal of Sex Research and cover thickness thereof are confirmed ".The height of this device may command overlying water can be applicable to flow solid coupling model test.But this device only is provided with poly (methyl methacrylate) plate at the backsight face, can not farthest realize visually, and can't carry out three-dimensional loading.
Also there is following weak point in the model test stand device system of the above-mentioned unit of analysis-by-synthesis:
1. existing model test apparatus is traditional geomechanical model test device, and the solid coupling effect of interactive stream takes place can not the simulated field truth dirty analog material and the water of being coupled admittedly.Model test apparatus is not all considered water seal property;
2. the size of above-mentioned model test apparatus generally can not be adjusted, even can adjust, operates also more loaded down with trivial detailsly, and experiment caused larger interference; And the structure assembling is complicated, is inconvenient to split, and can not carry out repeatedly revision test;
3. above-mentioned model test apparatus can only be simulated the plane loading procedure maybe can only simulate three-dimensional loading procedure, and function singleness can not be reequiped;
4. aspect visual, above-mentioned model test apparatus can't the viewing test process in the stream phenomenons such as softening under analog material and the water generation reciprocation situation, infiltration that are coupled admittedly, also can't observe phenomenons such as the breaking of country rock, gushing water.
The utility model content
The purpose of the utility model is for overcoming the deficiency of above-mentioned prior art, provide a kind of structure form simple, intensity is high, water shutoff is functional, can the simulated field truth under seepage field and stress field, can observe intuitively in the work progress that country rock in the seabed tunnel country rock seepage flow characteristic and loading procedure breaks and the gushing water process, can simulate plane and the solid model with coupling pilot system of accurate three-dimensional flow.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
The solid coupling model pilot system of a kind of seabed tunnel stream; Comprise high strength implosion test structure-steel framing, the high-strength armoured-glass seal box is monitored display system in real time; The computer control platform; Pressure water tank, said high-strength armoured-glass case sticks in the high strength implosion test structure-steel framing through EVA foam double faced adhesive tape, and high strength implosion test structure-steel framing tip shelf is provided with real-time monitoring display system; The top cover of high strength implosion test structure-steel framing is provided with water inlet, is provided with the rubber water-supply-pipe that links to each other with pressure water tank in the water inlet; Be equipped with the stream analog material that is coupled admittedly in the said high-strength armoured-glass case; Flow in the analog material that is coupled admittedly and be embedded with fiber optics displacement strain testing sensor; Fiber optics displacement strain testing sensor links to each other with the computer control platform through circuit, and the computer control platform links to each other with real-time monitoring display system through circuit.
Said high strength implosion test structure-steel framing is connected to form by front and back abutment wall, base plate, both sides gable and top cover, and position, abutment wall middle, said front and back is respectively equipped with the hole.
Said high-strength armoured-glass seal box inboard is attached with blow-out disc; The high-strength armoured-glass seal box through glass cement respectively with the base of high strength implosion test structure-steel framing, front and back abutment wall, both sides gable top cover bonding, be provided with opening with the anastomosis, hole on the said high-strength armoured-glass seal box corresponding with the front and back abutment wall.
Be provided with centrifugal suction pump in the said pressure water tank, centrifugal suction pump links to each other with the rubber water-supply-pipe, and carries pressure indicator on the pressure water tank.
The test method of the solid coupling model pilot system of seabed tunnel stream, step is following: the assembling of A. test-bed bonds the high-strength armoured-glass seal box through EVA foam double faced adhesive tape and high strength implosion test structure-steel framing; B. will flow the analog material that is coupled admittedly and lay in the high-strength armoured-glass seal box, and compacting, and bury corresponding fiber optics displacement strain testing sensor underground, be connected to the computer control platform; After the satisfied design thickness in advance, adopt the rubber water-supply-pipe, reach predefined head height, flow solid coupling test through pressure water tank water filling in laying the high-strength armoured-glass seal box that flows the analog material that is coupled admittedly; C. soak and make the stream analog material that is coupled admittedly saturated, and make intensity and seepage flow reach stable, excavate through the row hole then; D. after excavation is accomplished; Through fiber optics displacement strain testing sensor acquisition data; Be transferred to the computer control platform,, simultaneously break situation and critical data of surrouding rock deformation in the tunnel be reflected in the real-time monitoring display system through computer control platform analyzing and processing data.
The abutment wall middle, front and back of the utility model is provided with 0.35m * 0.35m hole; The space is big; Can allow the bigger underground boring tool of volume to get into excavation in the tunnel, the tunnel model excavation fast carried out smoothly, and be convenient to observe the fracture phenomena of tunnel gushing water and country rock;
Blow-out disc is inboard attached to the high-strength armoured-glass case, flows the fracture phenomena that the analog material extruding that is coupled admittedly occurs in the filler process and prevent to test, and warranty test successfully carries out;
Top cover is provided with water inlet, is convenient to pressure water tank through the water filling of rubber water-supply-pipe.
EVA foam double faced adhesive tape and sealing tempered glass case attached to the blow-out disc of surveying in the high-strength armoured-glass, bonding high-strength armoured-glass case and high strength implosion test structure-steel framing in the utility model guarantee that impermeable glass cement is current material, repeats no more at this.
Stream in the utility model analog material that is coupled admittedly is made up of the raw material of following weight portion: 1 part of normal sand, 0.05～0.15 part of ground barium sulfate; 0.05～0.15 part of talcum powder, 0.05～0.125 part of cement, 0.04～0.12 part in vaseline; 0～0.15 part of silicone oil, 0.1 part in water.
Model test apparatus base plate of the utility model and front and back abutment wall, both sides gable are all detachable, make things convenient for filler, get material, help the test unit recycling, all connect with high-strength bolt between each framework, and the warranty test shelf structure is stable, deformation can not take place.Be convenient to simultaneously split, can repack the solid coupling model test of accurate three axial flows into.Whole device good looking appearance, compact conformation, intensity are high, rigidity is big, and its bulk is: length * wide * height=2.4m * 0.8m * 2.4m.
The dirty analog material that is coupled admittedly of effect that the utility model is simple to operate, assembling is flexible, can simulate according to on-site actual situations, transparent high-strength armoured-glass case is convenient to observe water softening; Break and the gushing water process; Compare with forefathers' research; More approaching with engineering practice, the solid coupling model experimental study achievement scope of application of seabed tunnel stream that is drawn is wider.
The utility model is compared with domestic and international same device, and the beneficial effect of the utility model is,
1. simulation plane that can be successful and accurate three axial flows are coupled admittedly and flow solid coupling model test;
2. adopt high-strength transparence tempered glass case, realized visually, can intuitively observe the stream forms such as softening, break that analog material takes place that is coupled admittedly under the long term of water, can intuitively observe phenomenons such as tunnel gushing water and country rock break;
3. adopt the glass cement sealing, have good water seal property, can accurately carry out smoothly by warranty test;
4. high strength implosion test structure-steel framing thickness has reached 0.3m, and integral rigidity and intensity are big, can bear big external water pressure, protection test frame safety;
5. adopt monitoring display device in real time, the surrouding rock deformation that can clearly the reflect tunnel internal situation of breaking can provide real-time critical data;
6. the pressure water tank water filling device is provided with pressure indicator, constantly writes down institute's water injection rate, and is simple to operate, practical
7. the solid coupling model test-bed of stream adopts bolt fully, and simple the fractionation is convenient to do filler, got material, conveniently does series of contrast.
Description of drawings
Fig. 1 is the utility model structural representation;
1. front and back abutment walls wherein; 2. base; 3. both sides gable; 4. top cover; 5. monitor display system in real time; 6. rubber water-supply-pipe; 7. pressure water tank, 8. computer control platform, 9. high-strength armoured-glass seal box.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Among Fig. 1; The solid coupling model test unit of a kind of stream; Comprise high strength implosion test structure-steel framing; High strength implosion test structure-steel framing is connected to form through high-strength bolt by front and back abutment wall 1, base 2, both sides gable 3, top cover 4, and position, front and back abutment wall 1 middle is respectively equipped with the hole, is provided with opening with the anastomosis, hole on the high-strength armoured-glass seal box 9 corresponding with front and back abutment wall 1.High-strength armoured-glass seal box 9 inboards are attached with blow-out disc, the sealing case through EVA foam double faced adhesive tape respectively with the base 2 of high strength implosion test structure-steel framing, front and back abutment wall 1, both sides gable 3, top cover 4 bondings.Test structure frame tip shelf is provided with real-time monitoring display system 5.Test structure frame top cover 4 is provided with water inlet; Be provided with the rubber water-supply-pipe 6 that pressure water tank 7 links to each other in the water inlet 4; Rubber water-supply-pipe 6 injects water through water inlet on the test-bed top cover 4 and is equipped with some laminar flows and is coupled admittedly in the high strength implosion test structure-steel framing of analog material from pressure water tank 7, flow solid coupling test.Be provided with centrifugal suction pump in the pressure water tank 7, centrifugal suction pump links to each other with rubber water-supply-pipe 6, and carries pressure indicator on the pressure water tank 7.
Stream is coupled admittedly and is equipped with fiber optics displacement strain testing sensor in the analog material, and fiber optics displacement strain testing sensor links to each other with computer control platform 8 through circuit, and computer control platform 8 passes through circuit and links to each other with real-time monitoring display system 5.Computer control platform 8 is with data recording, and analyzing and processing, through real-time monitoring display system 5 reflection tunnel internal rock mass break situation and the ongoing critical data of test.
The test method of the solid coupling model pilot system of stream, step is following:
A. the assembling of test-bed bonds high-strength armoured-glass seal box 9 through EVA foam double faced adhesive tape and high strength implosion test structure-steel framing;
B. will flow the analog material that is coupled admittedly and lay in the high-strength armoured-glass seal box 9, and compacting, and bury corresponding fiber optics displacement strain testing sensor underground, be connected to computer control platform 8; After the satisfied design thickness in advance, adopt rubber water-supply-pipe 6, reach predefined head height, flow solid coupling test through pressure water tank 7 water filling in the high-strength armoured-glass seal box 9 of laying analog material;
C. soak and make the stream analog material that is coupled admittedly saturated, and make intensity and seepage flow reach stable, excavate through the row hole then;
D. after excavation is accomplished; Through fiber optics displacement strain testing sensor acquisition data; Be transferred to computer control platform 8,, simultaneously break situation and critical data of surrouding rock deformation in the tunnel be reflected in the real-time monitoring display system 5 through computer control platform 8 analyzing and processing data.
Though the above-mentioned accompanying drawing that combines is described the embodiment of the utility model; But be not restriction to the utility model protection domain; One of ordinary skill in the art should be understood that; On the basis of the technical scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.
Claims (4)
1. the solid coupling model pilot system of seabed tunnel stream is characterized in that, comprises high strength implosion test structure-steel framing; The high-strength armoured-glass seal box; Monitor display system, computer control platform, pressure water tank in real time; Said high-strength armoured-glass case sticks in the high strength implosion test structure-steel framing through EVA foam double faced adhesive tape, and high strength implosion test structure-steel framing tip shelf is provided with real-time monitoring display system; The top cover of high strength implosion test structure-steel framing is provided with water inlet, is provided with the rubber water-supply-pipe that links to each other with pressure water tank in the water inlet; Be equipped with the stream analog material that is coupled admittedly in the said high-strength armoured-glass case; Flow in the analog material that is coupled admittedly and be embedded with fiber optics displacement strain testing sensor; Fiber optics displacement strain testing sensor links to each other with the computer control platform through circuit, and the computer control platform links to each other with real-time monitoring display system through circuit.
2. the solid coupling model pilot system of a kind of seabed tunnel stream as claimed in claim 1; It is characterized in that; Said high strength implosion test structure-steel framing is connected to form by front and back abutment wall, base plate, both sides gable and top cover, and position, abutment wall middle, said front and back is respectively equipped with the hole.
3. the solid coupling model pilot system of a kind of seabed tunnel stream as claimed in claim 2; It is characterized in that; Said high-strength armoured-glass seal box inboard is attached with blow-out disc; The high-strength armoured-glass seal box through glass cement respectively with the base of high strength implosion test structure-steel framing, front and back abutment wall, both sides gable top cover bonding, be provided with opening with the anastomosis, hole on the said high-strength armoured-glass seal box corresponding with the front and back abutment wall.
4. the solid coupling model pilot system of a kind of seabed tunnel stream as claimed in claim 1 is characterized in that be provided with centrifugal suction pump in the said pressure water tank, centrifugal suction pump links to each other with the rubber water-supply-pipe, and carries pressure indicator on the pressure water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205147358U CN202420884U (en) | 2011-12-12 | 2011-12-12 | Fluid-solid coupling model test system for sea bed tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011205147358U CN202420884U (en) | 2011-12-12 | 2011-12-12 | Fluid-solid coupling model test system for sea bed tunnel |
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| CN202420884U true CN202420884U (en) | 2012-09-05 |
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| CN2011205147358U Expired - Fee Related CN202420884U (en) | 2011-12-12 | 2011-12-12 | Fluid-solid coupling model test system for sea bed tunnel |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102589909A (en) * | 2011-12-12 | 2012-07-18 | 山东大学 | Submarine tunnel fluid-solid coupling model test system and test method thereof |
| CN103091222A (en) * | 2013-01-04 | 2013-05-08 | 西南交通大学 | Device for simulating and testing water burst of tunnel fissure |
| CN103196808A (en) * | 2013-03-27 | 2013-07-10 | 山东大学 | Water seepage collecting and testing system for fluid-solid coupling test |
| CN103542999A (en) * | 2013-09-30 | 2014-01-29 | 上海交通大学 | Wave impact resistance value detection method of nuclear power station breakwater |
| CN104179514A (en) * | 2014-08-18 | 2014-12-03 | 同济大学 | Method for water inrush prediction and seepage control for underwater-tunnel broken surrounding rocks |
| CN104807960A (en) * | 2015-04-15 | 2015-07-29 | 中国矿业大学 | Visual model testing device and method for simulating water gushing in tunnel |
| CN105257318A (en) * | 2015-10-22 | 2016-01-20 | 上海交通大学 | Safety protection method for tunnel structural deformation caused by lining local leakage |
| CN105527401A (en) * | 2015-12-01 | 2016-04-27 | 中国矿业大学 | Visual simulation apparatus and method for migration of solid phase and liquid phase of mining overburden rock |
| CN111653183A (en) * | 2020-07-01 | 2020-09-11 | 中国科学院地质与地球物理研究所 | Visual system for simulating fluid-solid coupling tunnel excavation |
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2011
- 2011-12-12 CN CN2011205147358U patent/CN202420884U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102589909B (en) * | 2011-12-12 | 2014-03-26 | 山东大学 | Submarine tunnel fluid-solid coupling model test system and test method thereof |
| CN102589909A (en) * | 2011-12-12 | 2012-07-18 | 山东大学 | Submarine tunnel fluid-solid coupling model test system and test method thereof |
| CN103091222A (en) * | 2013-01-04 | 2013-05-08 | 西南交通大学 | Device for simulating and testing water burst of tunnel fissure |
| CN103091222B (en) * | 2013-01-04 | 2014-12-10 | 西南交通大学 | Device for simulating and testing water burst of tunnel fissure |
| CN103196808A (en) * | 2013-03-27 | 2013-07-10 | 山东大学 | Water seepage collecting and testing system for fluid-solid coupling test |
| CN103196808B (en) * | 2013-03-27 | 2015-04-22 | 山东大学 | Water seepage collecting and testing system for fluid-solid coupling test |
| CN103542999A (en) * | 2013-09-30 | 2014-01-29 | 上海交通大学 | Wave impact resistance value detection method of nuclear power station breakwater |
| CN103542999B (en) * | 2013-09-30 | 2017-12-08 | 上海交通大学 | Wave impact resistance value detection method of nuclear power station breakwater |
| CN104179514B (en) * | 2014-08-18 | 2016-04-20 | 同济大学 | The method of submerged tunnel breaking surrounding rock water-bursting predicting and osmotic control |
| CN104179514A (en) * | 2014-08-18 | 2014-12-03 | 同济大学 | Method for water inrush prediction and seepage control for underwater-tunnel broken surrounding rocks |
| CN104807960A (en) * | 2015-04-15 | 2015-07-29 | 中国矿业大学 | Visual model testing device and method for simulating water gushing in tunnel |
| CN105257318A (en) * | 2015-10-22 | 2016-01-20 | 上海交通大学 | Safety protection method for tunnel structural deformation caused by lining local leakage |
| CN105527401A (en) * | 2015-12-01 | 2016-04-27 | 中国矿业大学 | Visual simulation apparatus and method for migration of solid phase and liquid phase of mining overburden rock |
| CN105527401B (en) * | 2015-12-01 | 2017-10-27 | 中国矿业大学 | A kind of mining overburden solid-liquid two-phase migration visual Simulation devices and methods therefor |
| CN111653183A (en) * | 2020-07-01 | 2020-09-11 | 中国科学院地质与地球物理研究所 | Visual system for simulating fluid-solid coupling tunnel excavation |
| US11048002B1 (en) | 2020-07-01 | 2021-06-29 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Visualization system for simulating excavation of fluid-structure interaction tunnel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20151212 |
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| EXPY | Termination of patent right or utility model |