CN105092275B - It is a kind of can biaxial loadings tunnel model test device - Google Patents
It is a kind of can biaxial loadings tunnel model test device Download PDFInfo
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- CN105092275B CN105092275B CN201510461103.2A CN201510461103A CN105092275B CN 105092275 B CN105092275 B CN 105092275B CN 201510461103 A CN201510461103 A CN 201510461103A CN 105092275 B CN105092275 B CN 105092275B
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- 238000011068 loading method Methods 0.000 title claims abstract description 104
- 239000011521 glass Substances 0.000 claims abstract description 138
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000002474 experimental method Methods 0.000 claims abstract description 18
- 238000009412 basement excavation Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 94
- 239000010959 steel Substances 0.000 claims description 94
- 230000002093 peripheral effect Effects 0.000 claims description 35
- 239000005394 sealing glass Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 241001310793 Podium Species 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 208000010727 head pressing Diseases 0.000 description 3
- 230000002222 downregulating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses it is a kind of can biaxial loadings tunnel model test device, including general frame, jack biaxial loadings structure, adjustable bottom plate platform and dismountable glass box body, the glass box body is located at general frame center, bottom plate platform is arranged on glass box body bottom, the quantity of jack biaxial loadings structure is four groups, and four groups of jack biaxial loadings structures are respectively between four sides of glass box body and the inwall of general frame;General frame is used to fix jack biaxial loadings structure and provides experiment counter-force for it.The present invention can not only carry out two-way simultaneous loading, also ensure that material will not be extruded by compression in model, with simple and flexible, use advantage economic, easy to operate and easy to spread, simultaneously, it can also arrange that a high-resolution digital camera is acquired to a series of excavation trial images in the opposite side relative with excavating, and then the whole field deformation rupture basic data of tunnel-surrounding rock mass in digging process can be obtained.
Description
Technical field
The present invention relates to a kind of tunnel model test device, particularly it is a kind of can biaxial loadings tunnel model test dress
Put.
Background technology
All the time, tunnel physical model is all in terms of research actual tunnel engineering structure and the mutual response of surrounding formations
Occupy highly important status.And Practical Project tunnel generally all can be different because of its buried position, formation condition or tectonic stress
And entirely different crustal stress is there is, to enable the engineering situation of tunnel model accurate response actual tunnel, this is required
Physical model experiment device can carry out the loading at least two directions to tunnel model, at present, tunnel model be carried out double
To loading of the loading frequently with above and below the hydraulic jack progress and left and right sides, the mode that front and rear sides are then closed with baffle plate, but
Respectively to larger gap is generally all left between pressure head pressing plate and between pressing plate and baffle plate, cast material is easily extruded from gap, especially
Softer cast material;Simultaneously as there is gap, the loading force of jack can not be entirely applied to whole model boundary
On, causing model boundary stress, there is also certain difference with Practical Project;In addition, hydraulic jack because need to have one it is special
Hydraulic control system, this is allowed for, and tunnel model experimental provision cost is higher, and oil leakage phenomenon easily occurs for long-term practical go back.So,
In summary, current tunnel physical model experiment device can not preferably meet to load the two-way simultaneous of model and require, especially
It is compared with soft formation condition, it is difficult to accurately reflect the real bearing state of Practical Project rock mass.
The content of the invention
It is an object of the invention to provide it is a kind of can biaxial loadings tunnel model test device, solve current tunnel physics mould
Type experimental provision can not carry out the requirement of two-way simultaneous loading to tunnel model well.
The present invention can biaxial loadings the technical scheme that is used of tunnel model test device it is as follows:
The present invention can biaxial loadings tunnel model test device, including general frame, jack biaxial loadings structure, can
The bottom plate platform and dismountable glass box body of regulation, the glass box body are located at general frame center, and bottom plate platform is arranged on
Glass box body bottom, the quantity of jack biaxial loadings structure is four groups, and four groups of jack biaxial loadings structures are located at glass respectively
Between four sides of glass casing and the inwall of general frame;General frame is for fixing jack biaxial loadings structure and being it
Experiment counter-force is provided;General frame is overall steel frame on the outside of model, and jack biaxial loadings structure is for tunnel model
The hand-rail type jack biaxial loadings structure of Slow loading or unloading is carried out, and tunnel model is carried out slowly in hand form
The circumferential pressure of actual tunnel engineering is simulated in load or unload;Bottom plate platform is for initial fixed model and facilitates its two-way
The bottom plate platform of loading;Glass box body is the glass box body for pouring cast material and being linked with experiment loading unit.
As the preferred scheme of the present invention, the monoblock type quadrangle that the general frame is welded by four pieces of side plate head and the tail
Frame structure, is fixedly installed a steel plate, and reserved one and jack on every block of steel plate on the inside of every piece of side plate
The hole that biaxial loadings structure is engaged.
As the preferred scheme of the present invention, every group of jack biaxial loadings structure includes hand-rail type jack, pressure
Force snesor, pressure device for digit-displaying, pressure head, sliding steel plate, pulley fixing device and linking steel plate, hand-rail type jack root and one
It is fixedly connected in the middle part of the inwall of block side plate, hand-rail type jack end is connected through steel plate with pressure head, and sliding steel plate is arranged on
Pressure head front end is simultaneously connected by bolt, and sliding steel plate is linked together with being connected steel plate by pulley fixing device, pressure sensing
Device is located at the top of hand-rail type jack and is connected with pressure device for digit-displaying,
It is used as the preferred scheme of the present invention, the linking steel plate ring of the four direction of four groups of jack biaxial loadings structure
Glass box body surrounding is wound on, and is combined by way of head and the tail are mutually linked, while four sides of each block of linking steel plate are all
It is processed into the form on the face of cylinder.
As the preferred scheme of the present invention, the bottom plate platform includes hollow steel plate and up and down regulating valve, and hollow steel plate is set
Put in glass box body bottom, the quantity of regulating valve is two up and down, and about two regulating valves or so are symmetrically set hollow
The opposite exterior lateral sides of steel plate, while to ensure that modeled glass casing can steadily be placed in the bottom plate platform, bottom jack adds
Carrying the pressure head pressing plate of structure can be connected with model casing body phase through the plate by hollow devices and carry out bottom to model
Loading;In addition, then contributing to other three sides hand-rail type jack loading structures and glass by the height of regulating valve above and below control
The connection of casing, improves the resistance to overturning of biaxial loadings.
As the preferred scheme of the present invention, the glass box body includes peripheral glass plate, insulating glass unit, sealing glass
Plate, cushion block, bolt and screw rod, a cushion block aperture and one are reserved with four edges of peripheral glass plate and insulating glass unit
Individual bolt hole, reserves tunnel excavation hole on sealing glass plate, and the sealing glass plate is embedded in the middle part of insulating glass unit, outside
Setting before and after glass plate and insulating glass unit is enclosed, the quantity of cushion block is 12, and every three are one group totally four groups, and every group of cushion block is equal
It is inserted into a cushion block aperture on peripheral glass plate and insulating glass unit, the quantity of bolt and screw rod is four, four spiral shells
It is fixed in the bolt hole that bar is inserted respectively on peripheral glass plate and insulating glass unit and by bolt.
As the preferred scheme of the present invention, in addition to it is arranged on the steel framework frame plate of glass box body front and rear sides, steel framework frame plate
Connected using sealing screw combinations, to ensure that sealing glass plate will not be ejected in loading procedure.
The present invention can the test procedures of tunnel model test device of biaxial loadings be:
(1)By peripheral glass plate with insulating glass unit by being connected before and after four bolt screw rods;
(2)By sliding steel plate be connected steel plate head and the tail be mutually linked by way of be arranged on peripheral glass plate and hollow glass
A hexahedron is collectively forming between the interlayer that glass plate is formed, then peripheral glass plate and hollow glass is passed through with 12 cushion blocks
Glass plate makes it not to be moved when pouring cast material, on peripheral glass plate and insulating glass unit with fixed linking steel plate
Bolt hole be coaxially disposed, bolt is inserted into bolt hole and while tighten the bolt on four screw rods, makes hexahedron into one
Individual top end opening, the body structure that remaining five face is closed;
(3)Constantly cast material is poured into hexahedron until pouring full, and sealing glass plate is then embedded in double glazing
At plate, model sealing is completed, then glass plate and peripheral glass will be sealed with two pieces of peripheral steel framework frame plates and eight sealing screw rods again
Glass plate connects into a glass box;
(4)Glass box is removed to bottom plate platform, bottom plate podium level is adjusted by regulating valve above and below adjustment, and pass through
The pressure head of four jack and sliding steel plate are fixed together by the bolt on pressure head;
(5)12 cushion blocks are taken out, rotation shakes four hand-rail type jack and carries out hierarchical loading, makes tunnel model four
The loading force in direction meets the pressure requirements on experiment border;
(6)According to pre-designed tunnel excavation scheme, start to carry out model tunnel corresponding excavation experiment.
The present invention can the advantages of tunnel model test device of biaxial loadings be that can not only carry out two-way simultaneous loading,
Also ensure that material will not be extruded by compression in model, with simple and flexible, using economical, easy to operate and easy to spread excellent
Point, simultaneously, moreover it is possible to arrange a high-resolution digital camera to a series of excavation trial images in the opposite side relative with excavating
It is acquired, and then the whole field deformation rupture basic data of tunnel-surrounding rock mass in digging process can be obtained.
Brief description of the drawings
Fig. 1 be the present invention can biaxial loadings tunnel model test device front view.
Fig. 2 be the present invention can biaxial loadings tunnel model test device steel plate front view.
Fig. 3 be the present invention can biaxial loadings tunnel model test device linking steel plate scheme of installation.
Fig. 4 be the present invention can biaxial loadings tunnel model test device hollow steel plate front view.
Fig. 5 be the present invention can biaxial loadings tunnel model test device peripheral glass plate front view.
Fig. 6 be the present invention can biaxial loadings tunnel model test device insulating glass unit front view.
Fig. 7 be the present invention can biaxial loadings tunnel model test device the first steel framework frame plate front view.
Fig. 8 be the present invention can biaxial loadings tunnel model test device the second steel framework frame plate front view.
Embodiment
As shown in Fig. 1 to Fig. 8 the present invention can biaxial loadings tunnel model test device, including general frame, jack be double
To loading structure, adjustable bottom plate platform and dismountable glass box body, the glass box body is located at general frame center, bottom
Plate platform is arranged on glass box body bottom, and the quantity of jack biaxial loadings structure is four groups, four groups of jack biaxial loadings knots
Structure is respectively between four sides of glass box body and the inwall of general frame.
General frame is used to fix jack biaxial loadings structure and provides experiment counter-force for it;General frame is outside model
Side entirety steel frame, jack biaxial loadings structure is very heavy for carrying out the hand-rail type of Slow loading or unloading to tunnel model
Biaxial loadings structure is pushed up, and carries out Slow loading or unloading to tunnel model to simulate actual tunnel engineering in hand form
Circumferential pressure;Bottom plate platform is for initial fixed model and facilitates the bottom plate platform of its biaxial loadings;Glass box body be for
Pour cast material and the glass box body being linked with experiment loading unit.
The monoblock type quadrilateral frame structure that general frame is welded by four pieces of head and the tail of side plate 14, on the inside of every piece of side plate
It is fixedly installed a steel plate 3, and the hole that reserved one is engaged with jack biaxial loadings structure on every block of steel plate 3
Hole.The position connected specially on steel plate 3 with the structure pressure head 4 of hand-rail type jack 1, reserves one and pressure head diameter of round spindle phase
Near hole, is rocked with ensureing that pressure head 4 can move axially produce because being connected the mutual changing of the relative positions of steel plate when adding unloading again.
Every group of jack biaxial loadings structure includes hand-rail type jack 1, pressure sensor 2, pressure device for digit-displaying, pressure head
4th, sliding steel plate 9, pulley fixing device and linking steel plate 8, the effect of hand-rail type jack 1 is to make thousand by hand form
Jin top carries out Slow loading or unloading to model, and the root of hand-rail type jack 1 and the inwall middle part of one piece of side plate 14 are fixed
Connection, the end of hand-rail type jack 1 is connected through steel plate 3 with pressure head 4, and sliding steel plate 9 is arranged on the front end of pressure head 4 and by spiral shell
Bolt is connected, it is therefore an objective to jack loading structure is separated from each other or is combined with modeled glass casing, is easy to cast material
Individually pour and load.Sliding steel plate 9 is linked together with being connected steel plate 8 by pulley fixing device, it is ensured that linking steel plate 8 exists
Carry out biaxial loadings when can mutually the changing of the relative positions and can to model progress it is axially loaded.Pressure sensor 2 is located at hand-rail type jack 1
Top is simultaneously connected with pressure device for digit-displaying, and major function is the loading force numerical value for showing each jack.Four groups of jack are double
Glass box body surrounding, and the group by way of head and the tail are mutually linked are looped around to the linking steel plate 8 of the four direction of loading structure
It is combined, while the form on the face of cylinder is all processed into four sides of each block of linking steel plate 8, it is ensured that linking steel plate 8 is with being connected steel plate
Between or linking steel plate and glass plate between all intersect at a line, reduce mutual sliding friction influence and can guarantee that it is two-way add
Cast material will not be extruded from joining place when carrying compact model.
Bottom plate platform includes hollow steel plate 12 and up and down regulating valve 13, and hollow steel plate 12 is arranged on glass box body bottom, on
The quantity of lower regulating valve 13 is two, and about two regulating valves 13 or so are symmetrically set in the relatively outer of hollow steel plate 12
Side, while to ensure that modeled glass casing can steadily be placed in the bottom plate platform, the pressure head of bottom jack loading structure
Pressing plate can be connected with model casing body phase through the plate by hollow bolt 10 and carry out bottom-loaded to model;In addition,
Then contribute to the company of other three sides hand-rail type jack loading structures and glass box body by the height of regulating valve above and below control 12
Connect, improve the resistance to overturning of biaxial loadings.
Glass box body is mainly used to pour cast material and is linked with experiment loading unit, and the glass box body includes outer
Glass plate 15, insulating glass unit 16, sealing glass plate 11, cushion block 7, bolt and screw rod are enclosed, in peripheral glass plate 15 and hollow glass
16 4 edges of glass plate are reserved with a cushion block aperture and a bolt hole, and tunnel excavation is reserved on sealing glass plate 11
Hole, the sealing glass plate 11 is set before and after being embedded in the middle part of insulating glass unit 16, peripheral glass plate 15 and insulating glass unit 16
Put, the quantity of cushion block 7 is 12, and every three are one group totally four groups, and every group of cushion block 7 is inserted into peripheral glass plate 15 and hollow
In a cushion block aperture 17 on glass plate 16, the quantity of bolt and screw rod is four, and four screw rods are inserted respectively into peripheral glass
It is fixed in bolt hole in glass plate 15 and insulating glass unit 16 and by bolt.The purpose is to ensure the convenient combination of glass box
Cast material is dismantled and pours, simultaneously as using the form of glass plate back cover, therefore, can be in the opposite side relative with excavating
One high-resolution digital camera of arrangement is acquired to a series of excavation trial images.Finish, use when cast material is poured
After sealing glass plate is bound, needing to set steel framework frame plate 18 in glass box body front and rear sides, two steel framework frame plates point
Not Wei the first steel framework frame plate 18-1 and the second steel framework frame plate 18-2, steel framework frame plate 18 using sealing screw combinations connect, with
Ensure that sealing glass plate 11 will not be ejected in loading procedure, moreover it is possible to improve monolithic stability of the glass box body in process of the test
Property.
The present invention can the test procedures of tunnel model test device of biaxial loadings be:
(1)By peripheral glass plate 15 with insulating glass unit 16 by being connected before and after four bolt screw rods;
(2)By sliding steel plate 9 be connected steel plate 8 head and the tail be mutually linked by way of be arranged on peripheral glass plate 15 and in
A hexahedron is collectively forming between the interlayer that empty glass plate 16 is formed, then peripheral glass plate is passed through with 12 cushion blocks 7
15 and insulating glass unit 16 with fixed linking steel plate, it is not moved when pouring cast material, peripheral glass plate 15
It is coaxially disposed with the bolt hole on insulating glass unit 16, bolt is inserted into bolt hole and while tightens the spiral shell on four screw rods
Bolt, the body structure for making hexahedron be closed into a top end opening, remaining five face;
(3)Constantly cast material is poured into hexahedron until pouring full, and sealing glass plate 11 is then embedded in double glazing
At plate 16, model sealing is completed, then the He of glass plate 11 will be sealed with two pieces of peripheral steel framework frame plates 18 and eight sealing screw rods again
Peripheral glass plate 15 connects into a glass box;
(4)Glass box is removed to bottom plate platform, bottom plate podium level is adjusted by regulating valve above and below adjustment 13, and lead to
The pressure head 4 of four jack and sliding steel plate 9 are fixed together by the bolt crossed on pressure head 4;
(5)12 cushion blocks 7 are taken out, rotation shakes four hand-rail type jack 1 and carries out hierarchical loading, makes tunnel model four
The loading force in individual direction meets the pressure requirements on experiment border;
(6)According to pre-designed tunnel excavation scheme, start to carry out model tunnel corresponding excavation experiment.
Figure of description is briefly described below;
Fig. 1 illustrates the general structure of apparatus of the present invention, the main steel frame overall on the outside of model of the device, four it is hand
Formula jack biaxial loadings structure, bottom plate platform and glass box body composition.Wherein, the effect of overall steel frame is on the outside of model
Fixed hand-rail type jack biaxial loadings structure simultaneously provides experiment counter-force for it;Jack biaxial loadings structure is then with hand
Form carries out Slow loading or unloading to model to simulate the circumferential pressure of actual tunnel engineering;Bottom plate platform is used for initially fixed
Model simultaneously facilitates its biaxial loadings;Glass box body is mainly used to pour cast material and is linked with experiment loading unit.
Fig. 2 illustrates the front view of the steel plate of monoblock type peripheral frame.At the position, monoblock type peripheral frame should be reserved
One hole close with very heavy pressure end diameter of round spindle, it is ensured that pressure head can be moved axially when adding unloading again will not be because of linking
The mutual changing of the relative positions of steel plate and produce and rock;
Fig. 3 illustrates that four pieces are connected rearranging for steel plate.The linking steel plate 8 of four direction is then to be looped around model four
In week, combined by way of head and the tail are mutually linked, while the shape on the face of cylinder is all processed into each piece of linking steel plate 8 four side
Formula, it is ensured that linking steel plate 8 all intersects at a line with being connected between steel plate or being connected between steel plate and glass plate, reduces mutual
Cast material will not be extruded from joining place when sliding friction influences and can guarantee that biaxial loadings compact model;
Fig. 4 illustrates the structural representation of the hollow steel plate of bottom plate platform structure, and adjustable bottom platform is mainly one piece
Hollow rectangular-shaped steel plate, it is ensured that while modeled glass casing can steadily be placed in the bottom plate platform, bottom jack
The pressure head pressing plate of loading structure can be connected with model casing body phase through the plate by hollow devices and carry out bottom to model
Portion is loaded;
The structure that Fig. 5,6 illustrate glass box body, mainly by the relatively complete peripheral glass in one piece of reserved cushion block aperture
Plate 15, one piece also reserve the insulating glass unit 16 in cushion block aperture, the sealing glass plate 11 of one piece of reserved tunnel excavation hole(Sealing
Glass plate is just embedded and insulating glass unit hollow position), 12 cushion blocks 7 and four bolt screw rods compositions, the purpose is to protect
Cast material is dismantled and poured in the convenient combination of card glass box, simultaneously as constituted using glass plate, therefore, can be with excavating phase
To opposite side arrange a high-resolution digital camera to it is a series of excavation trial images be acquired;
The structure that Fig. 7,8 illustrate the peripheral steel frame of glass box, is finished when cast material is poured, is entered using sealing glass plate
After row binds, in addition it is also necessary to which the front and rear sides of model casing are respectively plus a steel framework frame plate 18, and two steel framework frame plates are respectively first
Steel framework frame plate 18-1 and the second steel framework frame plate 18-2 is simultaneously connected with screw combinations, except can guarantee that sealing glass plate will not be
It is ejected in loading procedure outer, moreover it is possible to improve resistance to overturning of the glass box body in process of the test.
Claims (7)
1. it is a kind of can biaxial loadings tunnel model test device, it is characterised in that:Including general frame, jack biaxial loadings
Structure, adjustable bottom plate platform and dismountable glass box body, the glass box body are located at general frame center, bottom plate platform
Glass box body bottom is arranged on, the quantity of jack biaxial loadings structure is four groups, four groups of jack biaxial loadings structure difference
Between four sides of glass box body and the inwall of general frame;General frame is used to fix jack biaxial loadings structure
And provide experiment counter-force for it;General frame is overall steel frame on the outside of model, and jack biaxial loadings structure is for tunnel
Road model carries out the hand-rail type jack biaxial loadings structure of Slow loading or unloading, and tunnel model is entered in hand form
Row Slow loading unloads to simulate the circumferential pressure of actual tunnel engineering;Bottom plate platform is for initial fixed model and square
Just the bottom plate platform of its biaxial loadings;Glass box body is the glass for pouring cast material and being linked with experiment loading unit
Glass casing;Every group of jack biaxial loadings structure includes hand-rail type jack(1), pressure sensor(2), pressure digital display
Device, pressure head(4), sliding steel plate(9), pulley fixing device and linking steel plate(8), hand-rail type jack(1)Root and one piece of side
Plate(3)Inwall in the middle part of be fixedly connected, hand-rail type jack(1)End passes through steel plate and pressure head(4)It is connected, sliding steel plate
(9)It is arranged on pressure head(4)Front end is simultaneously connected by bolt, sliding steel plate(9)With being connected steel plate(8)Connected by pulley fixing device
It is connected together, pressure sensor(2)Positioned at hand-rail type jack(1)Top is simultaneously connected with pressure device for digit-displaying.
2. according to claim 1 can biaxial loadings tunnel model test device, it is characterised in that:The overall frame
Frame is by four pieces of side plates(14)The monoblock type quadrilateral frame structure that head and the tail are welded, is fixedly installed on the inside of every piece of side plate
One steel plate(3), and in every block of steel plate(3)On reserve the hole that is engaged with jack biaxial loadings structure.
3. according to claim 1 can biaxial loadings tunnel model test device, it is characterised in that:Described four groups
The linking steel plate of the four direction of jack biaxial loadings structure(8)Glass box body surrounding is looped around, and passes through head and the tail mutually rank
The mode connect is combined, while each block of linking steel plate(8)Four sides be all processed into the form on the face of cylinder.
4. according to claim 1 can biaxial loadings tunnel model test device, it is characterised in that:The bottom plate
Platform includes hollow steel plate(12)Regulating valve up and down(13), hollow steel plate(12)Glass box body bottom is arranged on, is adjusted up and down
Valve(13)Quantity be two, about two regulating valves(13)Left and right is symmetrically set in hollow steel plate(12)It is relatively outer
Side.
5. according to claim 1 can biaxial loadings tunnel model test device, it is characterised in that:The glass
Casing includes peripheral glass plate(15), insulating glass unit(16), sealing glass plate(11), cushion block(7), bolt and screw rod, outside
Enclose glass plate(15)And insulating glass unit(16)Four edges are reserved with a cushion block aperture(17)With a bolt hole,
Seal glass plate(11)Upper reserved tunnel excavation hole, the sealing glass plate(11)It is embedded in insulating glass unit(16)Middle part,
Peripheral glass plate(15)And insulating glass unit(16)It is front and rear to set, cushion block(7)Quantity be 12, every three are one group totally four
Group, every group of cushion block(7)It is inserted into peripheral glass plate(15)And insulating glass unit(16)On a cushion block aperture(17)It is interior, spiral shell
The quantity of bolt and screw rod is four, and four screw rods are inserted respectively into peripheral glass plate(15)And insulating glass unit(16)On bolt
It is fixed in hole and by bolt.
6. according to claim 1 can biaxial loadings tunnel model test device, it is characterised in that:Also include setting
Put the steel framework frame plate in glass box body front and rear sides(18), steel framework frame plate(18)Connected using sealing screw combinations, to protect
Card sealing glass plate will not be ejected in loading procedure.
7. according to claim 1 can biaxial loadings tunnel model test device, it is characterised in that test procedure is
:
A, by peripheral glass plate(15)And insulating glass unit(16)By being connected before and after four bolt screw rods;
B, by sliding steel plate(9)With being connected steel plate(8)Peripheral glass plate is arranged on by way of head and the tail are mutually linked(15)With
Insulating glass unit(16)A hexahedron is collectively forming between the interlayer formed, then peripheral glass is passed through with 12 cushion blocks
Plate(15)And insulating glass unit(16)With fixed linking steel plate, it is set not to be moved when pouring cast material, peripheral glass
Glass plate(15)And insulating glass unit(16)On bolt hole be coaxially disposed, bolt is inserted into bolt hole and while tightens four
Bolt on root screw rod, the body structure for making hexahedron be closed into a top end opening, remaining five face;
C, toward constantly cast material is poured in hexahedron until pouring full, then will seal glass plate(11)It is embedded in insulating glass unit
(16)Place, completes model sealing, then again with two pieces of peripheral steel framework frame plates(18)Glass plate will be sealed with eight sealing screw rods
(16)With peripheral glass plate(15)Connect into a glass box;
D, glass box removed to bottom plate platform, pass through regulating valve above and below adjustment(13)To adjust bottom plate podium level, and pass through
Pressure head(4)On bolt by the pressure head of four jack(4)With sliding steel plate(9)It is fixed together;
E, 12 cushion blocks of taking-up(7), rotation four hand-rail type jack of shake(1)Hierarchical loading is carried out, makes tunnel model four
The loading force in individual direction meets the pressure requirements on experiment border;
F, according to pre-designed tunnel excavation scheme, start to carry out model tunnel corresponding to excavate experiment.
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CN107192602A (en) * | 2017-07-11 | 2017-09-22 | 兰州交通大学 | A kind of high ground stress soft rock stress tunnel indoor model test equipment and system |
CN108333332B (en) * | 2018-03-06 | 2023-07-07 | 招商局重庆交通科研设计院有限公司 | Large scale tunnel model test excavating device |
CN111504791A (en) * | 2020-04-10 | 2020-08-07 | 河南理工大学 | Double-shaft loading test device and test method for karst tunnel |
CN114720168B (en) * | 2022-04-29 | 2023-02-28 | 中国科学院武汉岩土力学研究所 | Tunnel engineering supporting structure deformation and control simulation test system |
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JP2009236802A (en) * | 2008-03-28 | 2009-10-15 | Railway Technical Res Inst | Three-dimensional tunnel loading simulation device |
CN101696913B (en) * | 2009-10-30 | 2011-09-14 | 同济大学 | Small-range tunnel horizontal plane model tester system for realizing multistage and master control loading |
JP5442546B2 (en) * | 2010-07-06 | 2014-03-12 | 一般財団法人電力中央研究所 | Rock sample permeability test method |
CN103076128B (en) * | 2013-01-04 | 2015-06-24 | 西南交通大学 | Tunnel three-dimensional stress field simulator |
CN203745218U (en) * | 2014-03-05 | 2014-07-30 | 中国矿业大学 | Tunnel pipe shed construction method simulation excavation device |
CN203881737U (en) * | 2014-04-30 | 2014-10-15 | 山东大学 | Rack device for tunnel excavating and grouting model test |
CN104297052B (en) * | 2014-09-25 | 2017-01-25 | 浙江科技学院 | Tunnel excavation three-dimensional model experiment loading device |
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2015
- 2015-07-31 CN CN201510461103.2A patent/CN105092275B/en not_active Expired - Fee Related
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