CN104155079A - Fluid-flow analog device and method for water bursting and mud emerging model test of tunnel - Google Patents

Fluid-flow analog device and method for water bursting and mud emerging model test of tunnel Download PDF

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Publication number
CN104155079A
CN104155079A CN201410382397.5A CN201410382397A CN104155079A CN 104155079 A CN104155079 A CN 104155079A CN 201410382397 A CN201410382397 A CN 201410382397A CN 104155079 A CN104155079 A CN 104155079A
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tunnel
fluid
tunnels mimic
pipe
pipes
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CN201410382397.5A
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CN104155079B (en
Inventor
李术才
周宗青
王庆瀚
李利平
石少帅
袁永才
雷霆
王升
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Shandong University
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Shandong University
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Abstract

The invention discloses a fluid-flow analog device and method for the water bursting and mud emerging model test of a tunnel. The analog device comprises two tunnel analog pipes parallel to each other, wherein the two tunnel analog pipes are connected with each other through a transverse gallery analog pipe; sliding bodies are connected with the bottom of the tunnel analog pipe and the bottom of the transverse gallery analog pipe respectively; the sliding bodies are placed and freely slide in track grooves; a three-centered circular plate is arranged in each of the two tunnel analog pipes; the fluid is enabled to flow in the tunnel analog pipes from the three-centered circular plates according to the set water pressure and speed to observe the flow regularity of the fluid in the two tunnel analog pipes and the transverse gallery analog pipe; the positions of components of the three-centered circular plates arranged in the tunnel analog pipes are adjusted to simulate different distances between tunnel faces and a transverse gallery; the positions of components A of the three-centered circular plates arranged in the two tunnel analog pipes are adjusted to simulate the different position relations between the two tunnel faces.

Description

Tunnel gushing water gushes fluid-flow analogy apparatus and method in mud model test
 
Technical field
The present invention relates to a kind of tunnel gushing water and gush fluid-flow analogy apparatus and method in mud model test.
Background technology
Tunnel relates to traffic engineering (railway, vcehicular tunnel), Hydraulic and Hydro-Power Engineering (water tunnel, underground power house) etc. important engineering field, become gradually the important component part that national major infrastructure project is built, and along with the planning of strategic development in science and technology such as country " 12 " etc., the center of gravity of key project construction shifts to the extreme complicated western mountainous areas of topographic and geologic and karst area just gradually, " large buried depth will a collection ofly appearance be there is, long hole line, heavily stressed, strong karst, high hydraulic pressure " etc. the high risky tunnel engineering of distinguishing feature, in construction process, be faced with serious gushing water and gush the geological disaster risk such as mud.Deep tunnel gushing water gushes mud disaster and often has the features such as sudden, large flow, high hydraulic pressure, once disaster occurs, gently floods tunnel, construction is interrupted, heavy cause great casualties and economic loss, and even some engineering is forced to suspend or relocate.Grasp accurately gushing water and gush mud disaster fluid flowing law in tunnel such as water, mud while occurring, effectively bootstrap technique personal security is withdrawn disaster field fast.But for fluid the flowing law in tunnel, Chinese scholars adopts the finite element analysis softwares such as ANSYS to carry out numerical simulation analysis conventionally, and aspect model investigation, still belongs to blank.
Summary of the invention
The object of the invention is the deficiency for overcoming above-mentioned technology, provide a kind of simple in structure, easy and simple to handle, there are visual fluid-flow analogy apparatus and method, by obtaining the information of flow such as flow velocity, hydraulic pressure data, accurately grasp the flowing law of fluid in tunnel, thereby formulate scientific and reasonable disaster escape route, effectively bootstrap technique personnel's safe escape.
For achieving the above object, the present invention adopts following technical proposals:
Tunnel gushing water gushes fluid-flow analogy device in mud model test, comprise two tunnels mimic pipes that are parallel to each other, and two tunnels mimic pipes connect by a horizontal hole simulative tube, tunnels mimic pipe and horizontal hole simulative tube bottom are all connected with sliding body, described sliding body is placed in rail groove, and sliding body is free to slide in rail groove; In two described tunnels mimic pipes, be equipped with three-core plectane, make fluid flow in tunnels mimic pipe according to the hydraulic pressure of setting and speed at described three-core plectane place; And by adjusting the position that is provided with the member of three-core plectane in tunnels mimic pipe, the different distance between simulation tunnel face and horizontal hole; By adjusting the member position that is provided with three-core plectane in two tunnels mimic pipes, simulate the diverse location relation between two tunnel tunnel faces.
Described rail groove bottom is fixed on a rigidity plate, and described rigidity plate is hinged by latch and six supporting legs, and supporting leg bottom is fixed on circular flat board support.
Described sliding body is the sliding body of falling convex shape.
Described rail groove is the concave shape cooperatively interacting with sliding body.
Two described tunnels mimic pipes are respectively by least two members awith a member bcomposition, member awith member abetween, member A and member bbetween connect together by screw bolt and nut;
Described member A is an arched member, and on former and later two arcwall faces of arched member, is equipped with circle joint face upwards, is provided with threaded hole at described joint face;
Described member B is an arched member, and the arcwall face of the front end of described arched member axial vane surface is provided with circle joint face upwards, is provided with threaded hole at described joint face; Be provided with a hole being connected with horizontal hole simulative tube at arched member sagittal plane, and be also provided with a circle joint face in the position of face radially, be provided with threaded hole at described joint face.
In described each tunnels mimic pipe, wherein there is a member ain be provided with a three-core plectane.
Described three-core plectane is consistent with shape inside tunnels mimic pipe, is by three sections of tangent being formed by connecting of circular arc that radius is different.
Described horizontal hole simulative tube is by least two removable members ccomposition, member cbetween connect together by screw bolt and nut;
Described member is that C is an arched member, and on former and later two arcwall faces of arched member, is equipped with circle joint face upwards, is provided with threaded hole at described joint face.
Two described tunnels mimic pipes and the inside surface of horizontal hole simulative tube carry out frosted processing, to increase the friction force of fluid and pipe internal surface.
Described two tunnels mimic pipes and horizontal hole simulative tube material therefor are high-strength transparence resin, have good visuality.
The axis place plane parallel of described rigidity plate and two tunnels mimic pipes.
On described rigidity plate, have three rail grooves, on track, have seven sliding bodies.
Described rigidity plate and supporting leg are hinged, free to rotate, and supporting leg is provided with three latches.
Application said apparatus is realized tunnel gushing water and is gushed the mobile analogy method of fluid in mud 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. determine the required member of horizontal hole simulative tube according to the spacing of two tunnels mimic pipes cquantity, uses bolt band nut bby each member cconnect together, and the horizontal hole simulative tube after connecting is placed in concave shape rail groove by the sliding body of falling convex shape;
C. according to tunnels mimic pipe adistance between middle three-core plectane and horizontal hole simulative tube, adjusts the member that is provided with three-core plectane aposition, use bolt aand nut aby each member awith bconnect together;
D. according to tunnels mimic pipe bthree-core plectane and tunnels mimic pipe athree-core plectane between position relationship, adjust tunnels mimic pipe bin be provided with the member of three-core plectane aposition, and use bolt aand nut aby tunnels mimic pipe beach member awith bconnect together;
E. two tunnels mimic pipes after connecting are placed in concave shape rail groove by the sliding body of falling convex shape, the sliding body of falling convex shape that slides, makes two tunnels mimic pipes and horizontal hole simulative tube close, uses bolt band nut bthree is connected together;
F. make fluid from tunnels mimic pipe according to testing requirements ain three-core plectane place flow into tunnels mimic pipe by setting hydraulic pressure or speed ain, the flowing law of observation fluid in two tunnels mimic pipes and horizontal hole simulative tube, reaches steady state (SS) until fluid flows, and completes the test of this group;
G. the fluid in peace and quiet two tunnels mimic pipes and horizontal hole simulative tube, presses the repeating step that requires of battery of tests a-F, until all flow simulating off-tests.
Apparatus of the present invention are applicable to simulate the flowing law simulation of fluid in tunnel under multiple combination condition, easy and simple to handle, can complete many group simulation tests, and have visuality in the short time.
Apparatus of the present invention are carried 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 member of horizontal hole simulative tube cquantity, 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 pipe ain be provided with the member of three-core plectane aposition, the different distance between simulation tunnel face and horizontal hole; 2. by adjusting the member that is provided with three-core plectane in two tunnels mimic pipes aposition, simulate the diverse location relation between two tunnel tunnel faces.
The present invention has studied tunnel gushing water and has gushed fluid flowing law analogy method in mud model test, has solved method for numerical simulation professional knowledge in the past and has required the problems such as high, modeling is complicated, computing time is tediously long.Compared with forefathers' research, this test unit is easy and simple to handle, visual in image, and testing crew can complete test without possessing advanced professional theory knowledge.
While the invention solves flowing law in tunnel of Numerical Method Study fluid in the past, professional knowledge requires the problems such as high, modeling is complicated, computing time is tediously long, has the following advantages:
1, tunnels mimic pipe and horizontal hole simulative tube have dismantled and assembled property, can simulate flowing of fluid under multiple combination condition:
1. in two tunnel different spacing situations fluid flow;
2. under two tunnel tunnel face different spatial conditions fluid flow;
3. tunnel gushing water gushes mud face flowing apart from fluid under horizontal hole different distance condition;
2, supporting leg is provided with three latches, can simulate under different gradient condition, flow in the suitable slope of fluid and counter-slope flows;
3, tunnels mimic pipe and horizontal hole simulative tube adopt high-strength transparence resin material, have good visuality, the flowing of observation fluid that can be visual in image.
Brief description of the drawings
Fig. 1 is structure front elevation of the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is member A sterogram;
Fig. 5 is member B sterogram;
Fig. 6 is member C sterogram;
Fig. 7 is three-core plectane sterogram;
Fig. 8 is three-core circle distribution schematic diagram.
1. tunnels mimic pipes in figure a; 2. tunnels mimic pipe b; 3. horizontal hole simulative tube; 4. sliding body; 5. rail groove; 6. rigidity plate; 7. supporting leg; 8. latch; 9. plate bearing; 10. member a; 11. members b; 12. three-core plectanes; 13. bolts a; 14. nuts a; 15. members c; 16. bolts b; 17. nuts b.
Embodiment
Below in conjunction with accompanying drawing and example, the present invention is further described.
Tunnel gushing water gushes fluid-flow analogy device in mud model test, comprise 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 connect by a horizontal hole simulative tube 3, tunnels mimic pipe A1, tunnels mimic pipe B2 and simulative tube 3 bottoms, horizontal hole are connected with the sliding body of falling convex shape 4, sliding body 4 is placed in concave shape rail groove 5, sliding body 4 can be free to slide in rail groove 5, rail groove 5 bottoms are fixed on a rigidity plate 6, rigidity plate 6 is hinged by latch 8 and six supporting legs 7, supporting leg 7 bottoms are fixed on circular flat board support 9.
Tunnels mimic pipe A1, tunnels mimic pipe B2 are by five members with dismantled and assembled property a10 and member b11 compositions, one of them member ain 10, be provided with one and there is certain thickness three-core plectane 12, for simulation tunnel face; Each member abetween 10 and and member b11 by five bolts a13 and nut a14 closely connect together, and are provided with three-core plectane 12 members by adjusting a10 position, changes the distance between tunnel tunnel face and horizontal hole.Described two tunnels mimic pipes 1,2 are respectively by four removable members a10 and a member b11 compositions, member abetween 10 and and member bbetween 11, pass through five bolts a13 and nut a14 connect together.
Member A is an arched member, and on former and later two arcwall faces of arched member, is equipped with circle joint face upwards, is provided with threaded hole at described joint face;
Member B is an arched member, and the arcwall face of the front end of described arched member axial vane surface is provided with circle joint face upwards, is provided with threaded hole at described joint face; Be provided with a hole being connected with horizontal hole simulative tube at arched member sagittal plane, and be also provided with a circle joint face in the position of face radially, be provided with threaded hole at described joint face.
In two tunnels mimic pipe A1, tunnels mimic pipe B2, there is respectively a member ain 10, be provided with a three-core plectane 12.
Horizontal hole simulative tube 3 is by four removable members c15 compositions, member cbetween 15, pass through five bolts b16 and nut b17 connect together.Member is that C is an arched member, and on former and later two arcwall faces of arched member, is equipped with circle joint face upwards, is provided with threaded hole at described joint face.
The inside surface of two tunnels mimic pipe A1, tunnels mimic pipe B2 and horizontal hole simulative tube 3 need carry out frosted processing, to increase the friction force of fluid and pipe internal surface.
Two tunnels mimic pipe A1, tunnels mimic pipe B2 and horizontal hole simulative tube 3 material therefors are high-strength transparence resin, have good visuality.
The axis place plane parallel of rigidity plate 6 and two tunnels mimic pipe A1, tunnels mimic pipe B2.
On rigidity plate 6, have three rail grooves 5, on track, have seven sliding bodies 4.
Rigidity plate 6 is hinged, free to rotate with supporting leg 7, and supporting leg 7 is provided with three latches 8.
Application said apparatus is realized tunnel gushing water and is gushed the mobile simulation of fluid in mud 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 angles, and by latch 8, rigidity plate 6 is hinged on supporting leg 7;
B. determine the required member of horizontal hole simulation 3 pipe according to the spacing of two tunnels mimic pipe A1, tunnels mimic pipe B2 c15 quantity, use bolt b16 and nut b17 by each member c15 connect together, and the horizontal hole simulative tube 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 pipe adistance in 1 between three-core plectane 12 and horizontal hole simulative tube 3, adjusts the member that is provided with three-core plectane 12 a10 position, uses bolt a13 and nut a14 by each member a10 Hes b11 connect together;
D. according to tunnels mimic pipe b2 three-core plectane 12 and tunnels mimic pipe aposition relationship between 1 three-core plectane 12, adjusts tunnels mimic pipe bin 2, be provided with the member of three-core plectane 12 a10 position, and use bolt a13 and nut a14 by tunnels mimic pipe beach member of 2 a10 Hes b11 connect together;
E. two tunnels mimic pipe A1, tunnels mimic pipe B2 after connecting are placed in concave shape rail groove 5 by the sliding body of falling convex shape 4, the sliding body of falling convex shape 4 that slides, makes two tunnels mimic pipes 1,2 and horizontal hole simulative tube 3 close, uses bolt b16 and nut b17 connect together three;
F. make fluid from tunnels mimic pipe according to testing requirements athree-core plectane 12 places in 1 flow into tunnels mimic pipe by setting hydraulic pressure or speed ain 1, the flowing law of observation fluid in two tunnels mimic pipe A1, tunnels mimic pipe B2 and horizontal hole simulative tube 3, reaches steady state (SS) until fluid flows, and completes the test of this group;
G. the fluid in peace and quiet two tunnels mimic pipe A1, tunnels mimic pipe B2 and horizontal hole simulative tube 3, presses the repeating step that requires of battery of tests a-F, until all flow simulating off-tests.

Claims (10)

1. tunnel gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: comprise two tunnels mimic pipes that are parallel to each other, and two tunnels mimic pipes connect by a horizontal hole simulative tube, tunnels mimic pipe and horizontal hole simulative tube bottom are all connected with sliding body, described sliding body is placed in rail groove, and sliding body is free to slide in rail groove; In two described tunnels mimic pipes, be equipped with three-core plectane, make fluid flow in tunnels mimic pipe according to the hydraulic pressure of setting and speed at described three-core plectane place; And by adjusting the position that is provided with the member of three-core plectane in tunnels mimic pipe, the different distance between simulation tunnel face and horizontal hole; By adjusting the position that is provided with the member of three-core plectane in two tunnels mimic pipes, simulate the diverse location relation between two tunnel tunnel faces.
2. tunnel as claimed in claim 1 gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: described rail groove bottom is fixed on a rigidity plate, described rigidity plate is hinged by latch and six supporting legs, and supporting leg bottom is fixed on circular flat board support.
3. tunnel as claimed in claim 1 gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: described sliding body is the sliding body of falling convex shape.
4. tunnel as claimed in claim 1 gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: described rail groove is the concave shape cooperatively interacting with sliding body.
5. tunnel as claimed in claim 1 gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: two described tunnels mimic pipes are respectively by least two members awith a member bcomposition, between member A and member A, member A and member bbetween connect together by screw bolt and nut;
Described member A is an arched member, and on former and later two arcwall faces of arched member, is equipped with circle joint face upwards, is provided with threaded hole at described joint face;
Described member B is an arched member, and the arcwall face of the front end of described arched member axial vane surface is provided with circle joint face upwards, is provided with threaded hole at described joint face; Be provided with a hole being connected with horizontal hole simulative tube at arched member sagittal plane, and be also provided with a circle joint face in the position of face radially, be provided with threaded hole at described joint face.
6. tunnel as claimed in claim 5 gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: in described each tunnels mimic pipe, wherein have a member ain be provided with a three-core plectane.
7. tunnel as claimed in claim 1 gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: described horizontal hole simulative tube is by least two removable members ccomposition, member cbetween connect together by screw bolt and nut;
Described member is that C is an arched member, and on former and later two arcwall faces of arched member, is equipped with circle joint face upwards, is provided with threaded hole at described joint face.
8. tunnel as claimed in claim 1 gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: two described tunnels mimic pipes and the inside surface of horizontal hole simulative tube carry out frosted processing, to increase the friction force of fluid and pipe internal surface.
9. tunnel as claimed in claim 1 gushing water gushes fluid-flow analogy device in mud model test, it is characterized in that: described two tunnels mimic pipes and horizontal hole simulative tube material therefor are high-strength transparence resin, have good visuality.
10. the arbitrary analogue means of utilization as described in claim 1-9 realized tunnel gushing water and gushed the mobile analogy method of fluid in mud model test, it is characterized in that, 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 according to rigidity plate inclination angle, and by latch, rigidity plate is hinged on supporting leg;
B. determine the required member of horizontal hole simulative tube according to the spacing of two tunnels mimic pipes cquantity, and by each member cconnect together, and the horizontal hole simulative tube after connecting is placed in concave shape rail groove by the sliding body of falling convex shape;
C. according to tunnels mimic pipe adistance between middle three-core plectane and horizontal hole simulative tube, adjusts the member that is provided with three-core plectane aposition, and by tunnels mimic pipe aeach member awith bconnect together;
D. according to tunnels mimic pipe bthree-core plectane and tunnels mimic pipe athree-core plectane between position relationship, adjust tunnels mimic pipe bin be provided with the member of three-core plectane aposition, and by tunnels mimic pipe beach member awith bconnect together;
E. two tunnels mimic pipes after connecting are placed in concave shape rail groove by the sliding body of falling convex shape, the sliding body of falling convex shape that slides, makes two tunnels mimic pipes and horizontal hole simulative tube close, and three is connected together;
F. make fluid from tunnels mimic pipe according to testing requirements ain three-core plectane place flow into tunnels mimic pipe by setting hydraulic pressure or speed ain, the flowing law of observation fluid in two tunnels mimic pipes and horizontal hole simulative tube, reaches steady state (SS) until fluid flows, and completes the test of this group;
G. the fluid in peace and quiet two tunnels mimic pipes and horizontal hole simulative tube, presses the repeating step that requires of battery of tests a-F, until all flow simulating off-tests.
CN201410382397.5A 2014-08-06 2014-08-06 Fluid-flow analogy apparatus and method in tunnel water bursting factor model test Expired - Fee Related CN104155079B (en)

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