CN104155079B - Fluid-flow analogy apparatus and method in tunnel water bursting factor model test - Google Patents
Fluid-flow analogy apparatus and method in tunnel water bursting factor model test Download PDFInfo
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- CN104155079B CN104155079B CN201410382397.5A CN201410382397A CN104155079B CN 104155079 B CN104155079 B CN 104155079B CN 201410382397 A CN201410382397 A CN 201410382397A CN 104155079 B CN104155079 B CN 104155079B
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Abstract
The invention discloses fluid-flow analogy device and method in a kind of tunnel water bursting factor model test, including two tunnels mimic pipes being parallel to each other, and two tunnels mimic pipes are connected by a horizontal hole simulation pipe, it is respectively connected with sliding body bottom tunnels mimic pipe and horizontal hole simulation pipe, described sliding body is placed in rail groove, and sliding body in rail groove slidably；Being equipped with three-core plectane in two described tunnels mimic pipes, make fluid flow in tunnels mimic pipe according to the hydraulic pressure set and speed at described three-core plectane, observation fluid simulates the flowing law in pipe at two tunnels mimic pipes and horizontal hole；And by adjusting the position of the component being provided with three-core plectane in tunnels mimic pipe, the different distance between simulation tunnel face and horizontal hole；By adjusting the position of the component A being provided with three-core plectane in two tunnels mimic pipes, simulate the diverse location relation between two tunnel tunnel faces.
Description
Technical field
The present invention relates to fluid-flow analogy apparatus and method in a kind of tunnel water bursting factor model test.
Background technology
Tunnel relates to traffic engineering (ferrum road, vcehicular tunnel), Hydraulic and Hydro-Power Engineering (water tunnel, underground power house) etc. important engineering field, it is increasingly becoming the important component part that country's major infrastructure project is built, and along with the planning of the strategy developments in science and technology such as country " 12 ", the center of gravity of key project construction the most gradually shifts with karst area to the western mountainous areas that topographic and geologic is extremely complicated, will appear from a collection of there is " great burying, long hole line, heavily stressed, strong karst, high hydraulic pressure " etc. the high risky tunnel engineering of distinguishing feature, construction process is faced with the geological disaster risk such as serious water bursting factor.Deep tunnel water bursting factor disaster often has the features such as flow sudden, big, high hydraulic pressure, and disaster once occurs, the most then flood tunnel, construction is interrupted, and heavy then cause great casualties and economic loss, even some engineering is forced to suspend or relocate.Grasp the fluid such as water, mud flowing law in tunnel when water bursting factor disaster occurs accurately, effectively bootstrap technique personal security can quickly withdraw disaster field.But for fluid flowing law in tunnel, Chinese scholars generally uses the finite element analysis softwares such as ANSYS to carry out numerical simulation analysis, and still belongs to blank in terms of model investigation.
Summary of the invention
It is an object of the invention to the deficiency for overcoming above-mentioned technology, there is provided a kind of simple in construction, easy and simple to handle, have visuality fluid-flow analogy apparatus and method, by obtaining the information of flow data such as flow velocity, hydraulic pressure, accurately grasp fluid flowing law in tunnel, thus formulate scientific and reasonable disaster escape route, the safe escape of effective bootstrap technique personnel.
For achieving the above object, the present invention uses following technical proposals:
Fluid-flow analogy device in tunnel water bursting factor model test, including two tunnels mimic pipes being parallel to each other, and two tunnels mimic pipes are connected by a horizontal hole simulation pipe, it is respectively connected with sliding body bottom tunnels mimic pipe and horizontal hole simulation pipe, described sliding body is placed in rail groove, and sliding body in rail groove slidably；In two described tunnels mimic pipes, it is equipped with three-core plectane, makes fluid flow in tunnels mimic pipe according to the hydraulic pressure set and speed at described three-core plectane；And by adjusting the position of the component being provided with three-core plectane in tunnels mimic pipe, the different distance between simulation tunnel face and horizontal hole；By adjusting the member position being provided with three-core plectane in two tunnels mimic pipes, simulate the diverse location relation between two tunnel tunnel faces.
Being fixed on bottom described rail groove on a rigidity plate, described rigidity plate is hinged by latch and six supporting legs, is fixed on circular flat board support bottom supporting leg.
Described sliding body is the sliding body of falling convex shape.
Described rail groove is the concave shape cooperated with sliding body.
Two described tunnels mimic pipes are respectively by least two componentAWith a componentBComposition, componentAWith componentABetween, component A and componentBBetween connected together by screw bolt and nut；
Described component A is an arched member, and is equipped with circle joint face upwards before and after arched member on two arcwall faces, is provided with screwed hole at described joint face；
Described component B is an arched member, and the arcwall face of the front end of described arched member axial face is provided with circle joint face upwards, is provided with screwed hole at described joint face；It is provided with a hole being connected with horizontal hole simulation pipe at arched member sagittal plane, and also is provided with a circle joint face in the position of radial direction face, be provided with screwed hole at described joint face.
In described each tunnels mimic pipe, wherein there is a componentAIn be provided with a three-core plectane.
Described three-core plectane is consistent with tunnels mimic pipe inner shape, is to be formed by connecting by the circular arc that three sections of radiuses are different is tangent.
Described horizontal hole simulation pipe is by the removable component of at least twoCComposition, componentCBetween connected together by screw bolt and nut；
Described component be C be an arched member, and before and after arched member, on two arcwall faces, be equipped with circle joint face upwards, be provided with screwed hole at described joint face.
The inner surface of two described tunnels mimic pipes and horizontal hole simulation pipe carries out frosted process, to increase the frictional force of fluid and pipe internal surface.
Two described tunnels mimic pipes and horizontal hole simulation pipe material therefor are high-strength transparence resin, have good visuality.
Described rigidity plate is parallel with the axis place plane of two tunnels mimic pipes.
Have three rail grooves on described rigidity plate, track has seven sliding bodies.
Described rigidity plate is hinged with supporting leg, free to rotate, and supporting leg is provided with three latches.
Application said apparatus realizes the analogy method of fluid flowing in tunnel water bursting factor model test, comprises the following steps:
A.
The supporting leg being fixed on circular flat board support is placed in same level, determines the position of latch on supporting leg, and by latch, rigidity plate is hinged on supporting leg；
B.
Spacing according to two tunnels mimic pipes determines the horizontal hole required component of simulation pipeCQuantity, uses boltBAnd nutBBy each componentCConnect together, and the horizontal hole simulation pipe after connecting is placed in concave shape rail groove by the sliding body of falling convex shape；
C.
According to tunnels mimic pipeADistance between middle three-core plectane and horizontal hole simulation pipe, adjusts the component being provided with three-core plectaneAPosition, use boltAAnd nutABy each componentAWithBConnect together；
D.
According to tunnels mimic pipeBThree-core plectane and tunnels mimic pipeAThree-core plectane between position relationship, adjust tunnels mimic pipeBIn be provided with the component of three-core plectaneAPosition, and use boltAAnd nutABy tunnels mimic pipeBEach componentAWithBConnect together；
E.
Two tunnels mimic pipes after connecting are placed in concave shape rail groove by the sliding body of falling convex shape, and slide the sliding body of falling convex shape, make two tunnels mimic pipes close with horizontal hole simulation pipe, use boltBAnd nutBThree is connected together；
F.
Make fluid from tunnels mimic pipe according to test requirements documentAIn three-core plectane at flow into tunnels mimic pipe by setting hydraulic pressure or speedAIn, observation fluid simulates the flowing law in pipe at two tunnels mimic pipes and horizontal hole, until fluid flowing reaches steady statue, completes the test of this group；
G.
Fluid in peace and quiet two tunnels mimic pipes and horizontal hole simulation pipe, the requirement pressing battery of tests repeats stepA-F, until all short core flow simulation test terminate.
Apparatus of the present invention are applicable to simulate fluid flowing law simulation in tunnel under the conditions of multiple combination, easy and simple to handle, can complete to organize simulation test more, and have visuality in the short time.
Apparatus of the present invention carry out the different gradient of simulation tunnel by adjusting the position of latch on supporting leg.
Apparatus of the present invention are by adjusting the component of horizontal hole simulation pipeCQuantity, simulates the different distance between two tunnels.
Three-core plectane in apparatus of the present invention is used for simulation tunnel face: 1. by adjusting tunnels mimic pipeAIn be provided with the component of three-core plectaneAPosition, the different distance between simulation tunnel face and horizontal hole；2. by adjusting the component being provided with three-core plectane in two tunnels mimic pipesAPosition, simulate the diverse location relation between two tunnel tunnel faces.
The present invention have studied fluid flowing law analogy method in tunnel water bursting factor model test, solves the problems such as conventional method for numerical simulation Professional knowledge requirement is high, modeling is complicated, the calculating time is tediously long.Compared with forefathers' research, this assay device is easy and simple to handle, visual in image, and testing crew can complete test without the professional theory knowledge possessing profundity.
When the present invention solves conventional Numerical Method Study fluid flowing law in tunnel, Professional knowledge requires the problems such as height, modeling is complicated, the calculating time is tediously long, has the advantage that
1, tunnels mimic pipe and horizontal hole simulation pipe have dismantled and assembled property, can simulate the flowing of fluid under the conditions of multiple combination:
1. the flowing of fluid in the case of two tunnel different spacing；
2. the flowing of fluid under the conditions of two tunnel tunnel face different spatial；
3. tunnel water bursting factor face flowing of fluid under the conditions of the different distance of horizontal hole；
2, supporting leg is provided with three latches, and under the conditions of can simulating different gradient, flow in the suitable slope of fluid and counter-slope flows；
3, tunnels mimic pipe and horizontal hole simulation pipe use high-strength transparence resin material, have good visuality, the flowing of observation fluid that can be visual in image.
Accompanying drawing explanation
Fig. 1 is present configuration front view；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is component A stereogram；
Fig. 5 is component B entity figure；
Fig. 6 is component C entity figure；
Fig. 7 is three-core plectane stereogram；
Fig. 8 is three-core circle distribution schematic diagram.
1. tunnels mimic pipe in figureA；2. tunnels mimic pipeB；The most horizontal hole simulation pipe；4. sliding body；5. rail groove；6. rigidity plate；7. supporting leg；8. latch；9. plate bearing；10. componentA；11. componentsB；12. three-core plectanes；13. boltsA；14. nutsA；15. componentsC；16. boltsB；17. nutsB。
Detailed description of the invention
The present invention is further described with example below in conjunction with the accompanying drawings.
Fluid-flow analogy device in tunnel water bursting factor model test, including two tunnels mimic pipe A1, tunnels mimic pipe B2, two tunnels mimic pipe A1, tunnels mimic pipe B2 is parallel to each other and both are connected by a horizontal hole simulation pipe 3, tunnels mimic pipe A1, connect bottom tunnels mimic pipe B2 and horizontal hole simulation pipe 3 and have the sliding body of falling convex shape 4, sliding body 4 is placed in concave shape rail groove 5, sliding body 4 can in rail groove 5 slidably, it is fixed on bottom rail groove 5 on a rigidity plate 6, rigidity plate 6 is hinged with six supporting legs 7 by latch 8, it is fixed on bottom supporting leg 7 on circular flat board support 9.
Tunnels mimic pipe A1, tunnels mimic pipe B2 are by five components with dismantled and assembled propertyA10 and componentB11 compositions, one of them componentA
It is provided with one in 10 and there is certain thickness three-core plectane 12, for simulation tunnel face；Each componentABetween 10 and and componentB11 pass through five boltsA13 and nutA14 are closely attached to together, are provided with three-core plectane 12 component by regulationAThe position of 10, changes the distance between tunnel tunnel face and horizontal hole.Described two tunnels mimic pipes 1,2 are respectively by four removable componentsA10 and a componentB
11 compositions, componentA Between 10 and and componentB By five bolts between 11A
13 and nutA 14 connect together.
Component A is an arched member, and is equipped with circle joint face upwards before and after arched member on two arcwall faces, is provided with screwed hole at described joint face；
Component B is an arched member, and the arcwall face of the front end of described arched member axial face is provided with circle joint face upwards, is provided with screwed hole at described joint face；It is provided with a hole being connected with horizontal hole simulation pipe at arched member sagittal plane, and also is provided with a circle joint face in the position of radial direction face, be provided with screwed hole at described joint face.
Two tunnels mimic pipe A1, tunnels mimic pipe B2 there is a component respectivelyAA three-core plectane 12 it is provided with in 10.
Horizontal hole simulation pipe 3 is by four removable componentsC
15 compositions, componentCBy five bolts between 15B16 and nutB
17 connect together.Component be C be an arched member, and before and after arched member, on two arcwall faces, be equipped with circle joint face upwards, be provided with screwed hole at described joint face.
The inner surface of two tunnels mimic pipe A1, tunnels mimic pipe B2 and horizontal hole simulation pipe 3 need to carry out frosted process, to increase the frictional force of fluid and pipe internal surface.
Two tunnels mimic pipe A1, tunnels mimic pipe B2 and horizontal hole simulation pipe 3 material therefor are high-strength transparence resin, have good visuality.
Rigidity plate 6 is parallel with the axis place plane of two tunnels mimic pipe A1, tunnels mimic pipe B2.
Have three rail grooves 5 on rigidity plate 6, track has seven sliding bodies 4.
Rigidity plate 6 is hinged with supporting leg 7, free to rotate, and supporting leg 7 is provided with three latches 8.
Application said apparatus realizes the simulation of fluid flowing in tunnel water bursting factor model test, comprises the following steps:
A.
The supporting leg 7 being fixed on circular flat board support 9 is placed in same level, requires to determine the position of latch 8 on supporting leg 7 according to rigidity plate 6 inclination angle, and by latch 8, rigidity plate 6 is hinged on supporting leg 7；
B.
The horizontal hole simulation 3 required component of pipe is determined according to two tunnels mimic pipe A1, the spacing of tunnels mimic pipe B2C
15 quantity, use boltB16 and nutB
17 by each componentC15 connect together, and the horizontal hole simulation pipe 3 after connecting is placed in concave shape rail groove 5 by the sliding body of falling convex shape 4；
C.
According to tunnels mimic pipeAIn 1, the distance between pipe 3 is simulated in three-core plectane 12 and horizontal hole, adjusts the component being provided with three-core plectane 12A
The position of 10, uses boltA13 and nutA
14 by each componentA10 HesB
11 connect together；
D.
According to tunnels mimic pipeBThe three-core plectane 12 of 2 and tunnels mimic pipeA
Position relationship between the three-core plectane 12 of 1, adjusts tunnels mimic pipeBThe component of three-core plectane 12 it is provided with in 2A
The position of 10, and use boltA13 and nutA
14 by tunnels mimic pipeBEach component of 2A
10 HesB11 connect together；
E.
Two tunnels mimic pipe A1 after connecting, tunnels mimic pipe B2 are placed in concave shape rail groove 5 by the sliding body of falling convex shape 4, and slide the sliding body of falling convex shape 4, make two tunnels mimic pipes 1,2 close with horizontal hole simulation pipe 3, use boltB
16 and nutBThree is connected together by 17；
F.
Make fluid from tunnels mimic pipe according to test requirements documentABy setting hydraulic pressure or speed inflow tunnels mimic pipe at three-core plectane 12 in 1AIn 1, observation fluid flowing law in two tunnels mimic pipe A1, tunnels mimic pipe B2 and horizontal hole simulation pipe 3, until fluid flowing reaches steady statue, complete the test of this group；
G.
The fluid in pipe 3 is simulated in peace and quiet two tunnels mimic pipe A1, tunnels mimic pipe B2 and horizontal hole, and the requirement pressing battery of tests repeats stepA-F, until all short core flow simulation test terminate.
Claims (8)
1. fluid-flow analogy device in tunnel water bursting factor model test, it is characterized in that: include two tunnels mimic pipes being parallel to each other, and two tunnels mimic pipes are connected by a horizontal hole simulation pipe, it is respectively connected with sliding body bottom tunnels mimic pipe and horizontal hole simulation pipe, described sliding body is placed in rail groove, and sliding body in rail groove slidably；Two described tunnels mimic pipes are made up of at least two component A and a component B respectively, and between component A with component A, component A connected together by screw bolt and nut between component B；In each tunnels mimic pipe, wherein have in a component A and be provided with a three-core plectane；
Described component A is an arched member, and is equipped with circle joint face upwards before and after arched member on two arcwall faces, is provided with screwed hole at this joint face；
Described component B is an arched member, and the arcwall face of the front end of this arched member axial face is provided with circle joint face upwards, is provided with screwed hole at this joint face；It is provided with a hole being connected with horizontal hole simulation pipe at arched member sagittal plane, and also is provided with a circle joint face in the position of radial direction face, be provided with screwed hole at this joint face；
Fluid is made to flow in tunnels mimic pipe according to the hydraulic pressure set and speed at described three-core plectane；And by adjusting the position of the component A being provided with three-core plectane in tunnels mimic pipe, the different distance between simulation tunnel face and horizontal hole；By adjusting the position of the component A being provided with three-core plectane in two tunnels mimic pipes, simulate the diverse location relation between two tunnel tunnel faces.
2. fluid-flow analogy device in tunnel as claimed in claim 1 water bursting factor model test, it is characterized in that: be fixed on bottom described rail groove on a rigidity plate, described rigidity plate is hinged by latch and six supporting legs, is fixed on circular flat board support bottom supporting leg.
3. fluid-flow analogy device in tunnel as claimed in claim 1 water bursting factor model test, it is characterised in that: described sliding body is the sliding body of falling convex shape.
4. fluid-flow analogy device in tunnel as claimed in claim 3 water bursting factor model test, it is characterised in that: described rail groove is the concave shape cooperated with sliding body.
5. fluid-flow analogy device in tunnel as claimed in claim 2 water bursting factor model test, it is characterised in that: described horizontal hole simulation pipe is made up of at least two removable component C, is connected together by screw bolt and nut between component C；
Described component C is an arched member, and is equipped with circle joint face upwards before and after arched member on two arcwall faces, is provided with screwed hole at this joint face.
6. fluid-flow analogy device in tunnel as claimed in claim 1 water bursting factor model test, it is characterised in that: the inner surface of two described tunnels mimic pipes and horizontal hole simulation pipe carries out frosted process, to increase the frictional force of fluid and pipe internal surface.
7. fluid-flow analogy device in tunnel as claimed in claim 1 water bursting factor model test, it is characterised in that: two described tunnels mimic pipes and horizontal hole simulation pipe material therefor are high-strength transparence resin, have good visuality.
8. one kind utilizes analog as claimed in claim 5 to realize the analogy method of fluid flowing in tunnel water bursting factor model test, it is characterised in that comprise the following steps:
A. the supporting leg being fixed on circular flat board support is placed in same level, determines the position of latch on supporting leg according to rigidity plate inclination angle, and by latch, rigidity plate is hinged on supporting leg；
B. determine the horizontal hole simulation required component C quantity of pipe according to the spacing of two tunnels mimic pipes, and each component C is connected together, and the horizontal hole simulation pipe after connecting is placed in concave shape rail groove by the sliding body of falling convex shape；
C. simulate the distance between pipe according to three-core plectane in tunnels mimic pipe A and horizontal hole, adjust the position of the component A being provided with three-core plectane, and each component A of tunnels mimic pipe A is connected together with component B；
D. according to the position relationship between three-core plectane and the three-core plectane of tunnels mimic pipe A of tunnels mimic pipe B, adjust the position of the component A being provided with three-core plectane in tunnels mimic pipe B, and each component A of tunnels mimic pipe B is connected together with component B；
E. two tunnels mimic pipes after connecting are placed in concave shape rail groove by the sliding body of falling convex shape, and slide the sliding body of falling convex shape, make two tunnels mimic pipes close with horizontal hole simulation pipe, three are connected together；
F. make at fluid three-core plectane from tunnels mimic pipe A by setting in hydraulic pressure or speed inflow tunnels mimic pipe A according to test requirements document, observation fluid simulates the flowing law in pipe at two tunnels mimic pipes and horizontal hole, until fluid flowing reaches steady statue, complete the test of this group；
Fluid in the most peace and quiet two tunnels mimic pipes and horizontal hole simulation pipe, the requirement pressing battery of tests repeats step A-F, until all short core flow simulation test terminate.
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