CN207197938U - The displacement loading three dimensional taest device of shield driving face stability analysis - Google Patents
The displacement loading three dimensional taest device of shield driving face stability analysis Download PDFInfo
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- CN207197938U CN207197938U CN201721175797.4U CN201721175797U CN207197938U CN 207197938 U CN207197938 U CN 207197938U CN 201721175797 U CN201721175797 U CN 201721175797U CN 207197938 U CN207197938 U CN 207197938U
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- side wall
- baffle plate
- displacement
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Abstract
The utility model discloses a kind of displacement loading three dimensional taest device of shield driving face stability analysis, and device includes housing, confined pressure simulation mechanism, at least displacement synchronous load maintainer, two parts of fillers and measurement assembly；Housing includes the transparent side wall of bottom wall, at least a portion and roof；Confined pressure simulation mechanism includes increased pressure board and at least two lifts, and bottom wall, side wall and increased pressure board surround filler casing；The synchronization lifting of each lift drives increased pressure board to move up and down；Displacement synchronous load maintainer includes driving machine, cylindrical barrel and covers its inner circular baffle plate, semi-cylindrical barrel and cover its inner Semicircular baffle；Driving machine drives two baffle plate synchronizing movings；For filler slicing and filling in filler casing, the color of adjacent layer is different；Measurement assembly includes the soil pressure sensor in circular baffle plate, confined pressure sensor, Acquisition Instrument and processor on increased pressure board.The utility model is distributed to development end soil pressure and soil body slipping state carries out model investigation.
Description
Technical field
The technical field of tunneling shield is the utility model is related to, more particularly to a kind of analysis of shield driving face stability
Displacement loads three dimensional taest device.
Background technology
In the prior art, when carrying out tunneling shield development end stability analysis, rip cutting or crosscutting generally is carried out to the soil body, adopted
The mode loaded with plane is tested, front when the geostatic shield situation and development end unstability of the soil body in front of research development end
The sliding situation of the soil body, the research of wherein vertical section is more, but research tunnel vertical section or cross section can not be anti-merely
Front soil body whole circumstances when reflecting development end unstability.Study the vertical section in tunnel piercing face simultaneously on different tests device
And cross section, analysis is then combined, equally exists ambient stress difference, loading synchronous is unintelligible etc., cause tunnel digging
Three-dimensional resistance to shear of soil strain stress relation can not truly be reflected when entering face Instability, the reliability of analysis result also leaves a question open.
Utility model content
(1) technical problems to be solved
The purpose of this utility model, which is to provide for one kind, can reflect the critical mistake of development end in tunneling shield tunneling process
The device of soil body stress variation situation in different displacements under steady state.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of displacement loading of shield driving face stability analysis
Three dimensional taest device, face stability is tunneled for simulation tunnel, the displacement loading of the shield driving face stability analysis is three-dimensional
Experimental rig includes：
Housing, including bottom wall, side wall and roof, the bottom wall are enclosed in the lower ending opening of the side wall, the roof energy
The upper end of the side wall is releasably connected to, the roof is used to provide counter-force for simulation ambient pressure；The side wall is at least
A part is made up of transparent material；
Confined pressure simulation mechanism, including increased pressure board, at least two lifts and shaft coupling；The outer side seal of the increased pressure board and
The inner side of the side wall is slidably connected at, the bottom wall, the side wall and the increased pressure board enclose stuffing box body cavity；It is each described
The both ends of lift connect the roof and the increased pressure board respectively；Each lift is realized by the connection of the shaft coupling
Synchronization lifting, and drive the increased pressure board to be moved up and down along the side wall, realize that confined pressure is simulated；
Displacement synchronous load maintainer, including driving machine, the cylindrical barrel being horizontally placed in the packing cavity casing, position
In the stuffing box body cavity and the semi-cylindrical barrel parallel with the cylindrical barrel, it is covered in the cylindrical barrel
The round end cap baffle plate of inner opening and be covered in the semi-cylindrical barrel inner opening semicircle cover baffle；
The housing is stretched out in the outer end of the cylindrical barrel and the outer end of the semi-cylindrical barrel, and respectively with the driving machine
Connection, the driving machine drive the cylindrical barrel baffle plate and the semi-cylindrical barrel baffle plate to the barrel filler casing
The internal synchronization of chamber moves horizontally；
At least two parts of fillers, from bottom to up slicing and filling in the stuffing box body cavity, the filler in adjacent layer
Color is different；
Measurement assembly, including multiple soil pressure sensors for being evenly arranged in respectively in the circular baffle plate and be arranged on
Multiple power confined pressure sensors described in two baffle plates on increased pressure board are arranged on the round end cap and the semi-circular end covers
Multiple pressure sensors, Acquisition Instrument and processor, the Acquisition Instrument and each soil pressure sensor, the confined pressure sensor point
Do not electrically connect, and receive its pressure signal sent, the processor handles each pressure signal.
Further, the radius of the cylindrical barrel is identical with the radius of the semi-cylindrical barrel, in same height
Degree, be in same ambient stress during experiment, can test and simulate the vertical section and cross section in same tunnel, show that it three-dimensional breaks
Bad displacement stress situation.
Further, the soil pressure sensor is evenly arranged on the circular baffle plate end cap along its warp and weft,
The pressure sensor is covered along its warp and weft in the semi-circular end and is evenly arranged.
Further, the driving machine includes two screw rods laterally set, shaft coupling and handwheel；
Two screw rods be respectively placed in the cylindrical barrel and the semi-cylindrical barrel in, and respectively with it is described
Round end cap baffle plate and the Semicircular baffle end cap can be connected rotationally；The shaft coupling connects two screw rods, described
Handwheel is connected with the shaft coupling；
By rotating the handwheel, drive the shaft coupling to rotate, and drive two screw rods synchronously to do stretching motion,
The stretching motion of two screw rods promotes the circular baffle plate end cap and the Semicircular baffle end cap level of synchronization to move respectively
It is dynamic.
Further, the thickness for the filler being filled in above the cylindrical barrel is more than 0, and is less than or equal to institute
State cylindrical barrel diameter three times.
As a kind of enforceable mode, the filler is sand.
As a kind of enforceable mode, the side wall is all made up of transparent material, and transparent scale is puted up thereon
Paper, minimum scale are 1 millimeter.
Further, the side wall includes four pieces of wallboards, and four pieces of wallboards surround rectangular cylinder；
The outer end of the cylindrical barrel and the outer end of the semi-cylindrical barrel pass perpendicularly through one of wall
Plate.
(3) beneficial effect
A kind of device that can reflect soil body situation of change in tunneling shield tunneling process provided by the utility model, passes through
The pressure signal that the horizontal displacement of circular baffle plate and Semicircular baffle and soil pressure sensor and confined pressure sensor measure, it is right
The soil pressure distribution of shield driving face and development end critical glide state are studied.During the soil body deforms, see
The misalignment of the soil body at tunnel difference section is examined, according to slicing and filling and the alternate filler of color, observes soil body slip-crack surface
Shape, the data measured according to soil pressure sensor and confined pressure sensor, it is determined that the circular baffle plate and half under different displacement conditions
Pressure distribution situation in circular baffle plate.
The land movement situation that semi-cylindrical barrel is observed that actual tunnel development end vertical section is established, establishes cylinder
Shape barrel is observed that development end cross section land movement situation, so as to which the utility model passes through to vertical section and cross section
Simulation, realizes the three dimensional analysis to shield driving face.
Brief description of the drawings
Fig. 1 is the structural representation of the three dimensional taest device (being free of roof) in shield driving face of the present utility model；
Fig. 2 is housing (being free of roof), the cylindrical barrel of the three dimensional taest device in shield driving face of the present utility model
With the structural representation of semi-cylindrical barrel；
Fig. 3 is point of soil pressure sensor in the circular baffle plate of the three dimensional taest device in shield driving face of the present utility model
Cloth schematic diagram；
Fig. 4 is monitoring point soil pressure on the vertical pivot of the circular baffle plate of the three dimensional taest device in shield driving face of the present utility model
Relation between power and baffle plate displacement；
Fig. 5 is monitoring point soil pressure on the transverse axis of the circular baffle plate of the three dimensional taest device in shield driving face of the present utility model
Relation between power and baffle plate displacement.
Reference：
10- housings；12- bottom walls；14- side walls；
22- cylinder barrels；24- circular baffle plates；
32- semi-cylindrical barrels；34- Semicircular baffles；
40- displacement synchronous load maintainers；42- screw rods；
44- is used for the shaft coupling of displacement loading；46- handwheels；
50- confined pressure simulation mechanisms；52- increased pressure boards；54- lifts；
62- soil pressure sensors；64- Acquisition Instruments；66- processors.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is used to illustrate the utility model, but is not limited to the scope of the utility model.
Refer to shown in Fig. 1 and Fig. 2, the utility model proposes a kind of displacement loading three of shield driving face stability analysis
Experimental rig is tieed up, is tunneled for simulation tunnel, the displacement loading three dimensional taest device of shield driving face stability analysis includes shell
Body 10, confined pressure simulation mechanism 50, at least displacement synchronous load maintainer 40, two parts of fillers and measurement assembly.
Housing 10 includes bottom wall 12, side wall 14 and roof, and bottom wall 12 is enclosed in the lower ending opening of side wall 14, and roof can be dismantled
Ground is connected to the upper end of side wall 14, and roof is used to provide counter-force for simulation ambient pressure；At least a portion of side wall 14 is by transparent
Material is made.
Confined pressure simulation mechanism 50 includes increased pressure board 52, at least two lifts 54 and shaft coupling；The outside of increased pressure board 52 is close
Seal and be slidably connected at the inner side of side wall 14, bottom wall 12, side wall 14 and increased pressure board 52 enclose filler casing.Each lift 54
Both ends connect roof and increased pressure board 52 respectively；The synchronization lifting of each lift 54 is realized by the connection of shaft coupling, and drives and adds
Pressing plate 52 moves up and down along side wall 14, realizes that confined pressure is simulated.
Displacement synchronous load maintainer 40 includes driving machine, the cylindrical barrel 22 being horizontally placed in filler casing, is located at
In filler casing and the semi-cylindrical barrel 32 parallel with cylindrical barrel 22, the inner opening for being covered in cylindrical barrel 22
Circular baffle plate 24 and be covered in semi-cylindrical barrel 32 inner opening Semicircular baffle 34.Outside cylindrical barrel 22
Housing 10 is stretched out in end and the outer end of semi-cylindrical barrel 32, and is connected respectively with driving machine, driving machine driving circular baffle plate 24
Moved horizontally with the internal synchronization of Semicircular baffle 34 to filler casing.
For slicing and filling in filler casing, the color of the filler in adjacent layer is different from bottom to up for filler.Measurement assembly bag
Include the multiple soil pressure sensors 62 being evenly arranged in circular baffle plate 24, the confined pressure sensor being arranged on increased pressure board 52, adopt
Collect instrument 64 and processor 66, Acquisition Instrument 64 is electrically connected with soil pressure sensor 62, confined pressure sensor, and receives what it sent
Pressure signal, processor 66 handle each pressure signal.More preferably, processor 66 is computer.
The displacement loading three dimensional taest device of shield driving face stability analysis of the present utility model, suitable for studying the soil body
The stability in shield driving face during pressure balance.During shield driving, circular baffle plate 24 and semi-cylindrical on cylindrical barrel 22
Semicircular baffle 34 on barrel 32 maintains the stabilization of development end, and this supporting pattern can be reduced to biased support pattern.
Horizontal displacement and soil pressure sensor 62 and of the utility model by circular baffle plate 24 and Semicircular baffle 34
The pressure signal that confined pressure sensor measures, the distribution of shield driving face soil pressure and development end critical glide state are ground
Study carefully.When circular baffle plate 24 and the level of Semicircular baffle 34 move inward, the soil body is acted on, the soil body deforms, and is collapsing
Shi Tuti supporting power is minimum；In the process, observe the misalignment of the soil body at tunnel difference section, according to slicing and filling and
The alternate filler of color, observe the shape of soil body slip-crack surface, the data measured according to soil pressure sensor 62, it is determined that in different positions
Pressure distribution situation under the conditions of shifting in circular baffle plate 24 and Semicircular baffle 34.In addition, slurry shield be often also equipped with it is low
The panel of aperture opening ratio, the panel can also use shield driving face stability of the present utility model to the support action of soil pressure
The displacement loading three dimensional taest device of analysis is studied.
Further, the radius of cylindrical barrel 22 is identical with the radius of semi-cylindrical barrel 32, in sustained height, examination
Same ambient stress is in when testing, can test and simulate the vertical section and cross section in same tunnel, shows that its three-D displacement should
Power situation.In the present embodiment, the radius of cylindrical barrel 22 and semi-cylindrical barrel 32 is 150 millimeters, and thickness is 20 millis
Rice.
Cylindrical barrel 22 and semi-cylindrical barrel 32 are used simultaneously, can be studied under identical misalignment, it is circular
The difference of the distribution of force of baffle plate 24 and Semicircular baffle 34.
It is assumed that the filling packing of the simulated test soil body is uniform, then the displacement for testing the soil body is symmetrical on tunnel vertical section：Tunnel
There was only the displacement of the cylindrical length direction of barrel 22 (i.e. the length direction of housing 10) and the short transverse of housing 10 on road vertical section,
There is no the displacement of the cylindrical horizontal radial of barrel 22 (i.e. the width of housing 10).Because the soil at both sides displacement of tunnel vertical section is closed
It is symmetrical in vertical section, according to geometrical symmetry, only take the half tunnel that i.e. half-and-half cylindrical barrel 32 is simulated to be analyzed.
To show development end front land movement situation under different supporting conditions, the vertical section (semicolumn of development end is selected
Shape barrel 32) and cross section (cylindrical barrel 22) two typical sections, form observation is carried out by transparent side wall.Due to circle
The symmetry of shape tunnel stress, the mechanical characteristic of its half soil body are consistent with entirety.Therefore, establishing semi-cylindrical barrel 32 can be with
It was observed that the land movement situation in actual tunnel development end vertical section, establishes cylindrical barrel 22 it is observed that development end is cross-sectional
Face land movement situation, so as to which the utility model is by the simulation to vertical section and cross section, realize three to shield driving face
Dimension analysis.
Further, refer to shown in Fig. 3, soil pressure sensor 62 is uniform along its warp and weft in circular baffle plate 24
Arrange, in the present embodiment, in circular baffle plate 24, force snesor 62 is arranged on each crosspoint of warp and weft, is amounted to
37.
Further, as shown in Fig. 2 driving machine includes two screw rods 42 laterally set, the connection for displacement loading
Axle device 44 and handwheel 46.Two screw rods 42 be respectively placed in cylindrical barrel 22 and semi-cylindrical barrel 32 in, and respectively with circle
Shape baffle plate 24 and Semicircular baffle 34 can be connected rotationally；Shaft coupling 44 for displacement loading connects two screw rods 42, handwheel
46 are connected with for the shaft coupling 44 of displacement loading.
By rotating handwheel 46, drive and rotated for the shaft coupling 44 of displacement loading, and drive two screw rods 42 synchronously to do
Stretching motion, the stretching motion of two screw rods 42 promote circular baffle plate 24 and the level of synchronization of Semicircular baffle 34 to move respectively.
When carrying out load test, soil pressure sensor 62 is arranged in circular baffle plate 24, by cylindrical barrel 22 and semicircle
Cylindricality barrel 32 (i.e. circular baffle plate 24 and Semicircular baffle 34) is advanced into precalculated position.The loading of confined pressure simulation mechanism 50 is predetermined to be carried
Lotus, rotation handwheel 46 cause circular baffle plate 24 and Semicircular baffle 34 that micro-displacement occurs, and then gather circular baffle plate 24 and add
Pressure reading on pressing plate 52, confined pressure is controlled by the confined pressure sensor on increased pressure board 52, while observe tunnel in different sections
Middle land movement situation, determine under different displacement conditions pressure distribution form and the soil body in circular baffle plate 24 and Semicircular baffle 34
Sliding surface shape.
Further, the thickness for being filled in the filler of the cylindrical top of barrel 22 is more than 0, and is less than or equal to cylindrical tube
Three times of the diameter of wall 22.More preferably, it is 350 millis to make the distance of cylindrical barrel 22 and semi-cylindrical barrel 32 and bottom wall 12
Rice.
As a kind of enforceable mode, filler is sand.More preferably, sand uses fine sand and flour sand.
As a kind of enforceable mode, side wall 14 is all made up of transparent material, and transparent scale paper is puted up thereon,
Minimum scale is 1 millimeter.More preferably, roof can also be made up of transparent material, and side wall 14 uses lucite in the present embodiment
It is made, so as to facilitate experimenter's change in shape of the displacement of each layer filler and boundary line from all angles.Lucite
Thickness is 50 millimeters, and on the side wall 14, along its length every 0.4 meter, short transverse every 0.5 meter, is set wide 100 millimeters
Reinforced steel beam and girder.
Further, side wall 14 includes four pieces of wallboards, and four pieces of wallboards surround rectangular cylinder；The outer end of cylindrical barrel 22 and half
The outer end of cylindrical barrel 32 passes perpendicularly through one of wallboard.Now, make the side and another side corresponding thereto by
Transparent material is made, you can meets the requirement of observation land movement.
More preferably, housing 10 is long 1.2 meters, wide 1.0 meters, high 1.5 meters, for proof strength requirement, bottom wall 12, the and of side wall 14
Increased pressure board 52 uses 20 millimeters of steel plate, and on bottom wall 12 and increased pressure board 52, respectively along its length every 0.4 meter,
Short transverse is every wide 100 millimeters, the thick 20 millimeters ribs of 0.5 meter of setting.
As another enforceable mode, the cross section of side wall 14 can also be circle.Now, cylinder in side wall 14 is made
The subregion that the outer end of shape barrel 22 and the outer end of semi-cylindrical barrel 32 pass perpendicularly through has transparent material to be made, you can meets
Observe the requirement of land movement.
More preferably, confined pressure simulation mechanism 50 includes four sets of lifts 54, is respectively acting on increased pressure board 52, its application point difference
Close to four summits of increased pressure board 52, make lift 54 is synchronous to load using shaft coupling.Design axial stress normal duty
400kPa, limit load 600kPa, i.e. 48 tons of 54 normal load of lift, the limit load 72 tons.In the present embodiment, using four sets
20 tons of lift 54 is evenly arranged on increased pressure board 52.Sensor can be connected between increased pressure board 52 and lift 54, is sensed
The range of device is 20 tons, and precision 1%, the stress that confined pressure simulation mechanism 50 loads is measured and fed back by sensor, it is possible to achieve
The centralized Control of ambient stress.Confined pressure simulation mechanism 50 exerts a force downwards, can simulate less than 30 meters of stratum.
The assembling process of the displacement loading three dimensional taest device of the shield driving face stability analysis of the present embodiment is as follows：Cloth
Put 62,37 soil pressure sensors 62 of soil pressure sensor to be evenly arranged along warp and weft, and number respectively, while to filler
Dyed.Cylindrical barrel 22 and semi-cylindrical barrel 32 are respectively installed in filler casing.Connect soil in measurement assembly
Circuit between pressure sensor 62, Acquisition Instrument 64 and processor 66, exported after carrying out the road and bridge balance of soil pressure sensor 62
Road and bridge balanced file, the data initial reference value that sensor initializing is tested as this.
The layering laying sand in filler casing, every layer of thickness is about at 0.5 centimetre, and adjacent sandy soils are using different
Color, to observe the change of the soil body.Confined pressure simulation mechanism 50 and corresponding counter-force mechanism are installed.Lift by crane confined pressure simulation mechanism
50, to installation site, are then mounted in filler casing.
Test procedure is as follows：
(1) the inner of cylindrical barrel 22 is placed in filler casing, housing 10 is stretched out in its outer end；By filler from bottom to up
Slicing and filling is in filler casing；
(2) lift 54 of confined pressure simulation mechanism 50 applies downward pressure, displacement synchronous load maintainer to increased pressure board 52
40 driving machine driving circular baffle plate 24 and the internal synchronization of Semicircular baffle 34 to filler casing move horizontally；
(3) the initial pressure reading of soil pressure sensor 62 and the initial confined pressure reading of confined pressure sensor, driving machine are read
Moved after making circular baffle plate 24 and Semicircular baffle 34, gather the change of soil pressure sensor 62 and confined pressure sensor, and by saturating
Change of the filler of the observation of side wall 14 layering in filler casing made of bright material, until reading drops to 0；
(4) after testing, increased pressure board 52 is unloaded, empties the filler in filler casing, prepares lower battery of tests or stops
Only.
More preferably, confined pressure simulation mechanism 50 includes motor, starts motor, carries out increased pressure board 52 and arrives precalculated position, sees
Examine axle power meter registration and carry out the control that is further applied load.In the present embodiment, handwheel 46 produces small change in displacement when rotating, every 3 points
Clock rotates 1/6 circle so that circular baffle plate 24 and Semicircular baffle 34 move 0.05 millimeter (handwheel stroke is 7mm/24r), shake
Handwheel 46 is until the registration of force snesor 62 is close to zero, and now the soil body reaches a stable state.Then 3 are rotated every time
Circle, observe the change in displacement of layered sand.After experiment, first sand is removed from filler casing.
By the soil pressure sensor 62 set in circular baffle plate 24, the soil that the filler of filling in stuffing box body is simulated is measured
The pressure of body, and the pressure value under the different displacement conditions of circular baffle plate 24 is measured respectively, result of the test geostatic shield is such as
Fig. 4, shown in 5.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (8)
1. a kind of displacement loading three dimensional taest device of shield driving face stability analysis, is tunneled, its feature for simulation tunnel
It is, the displacement loading three dimensional taest device of the shield driving face stability analysis includes：
Housing, including bottom wall, side wall and roof, the bottom wall are enclosed in the lower ending opening of the side wall, and the roof can be dismantled
Ground is connected to the upper end of the side wall, and the roof is used to provide counter-force for simulation ambient pressure；At least one of the side wall
Divide and be made up of transparent material；
Confined pressure simulation mechanism, including increased pressure board, at least two lifts and shaft coupling；The outer side seal of the increased pressure board and slip
The inner side of the side wall is connected to, the bottom wall, the side wall and the increased pressure board enclose filler casing；Each lift
Both ends connect the roof and the increased pressure board respectively；The synchronization of each lift is realized by the connection of the shaft coupling
Lifting, and drive the increased pressure board to be moved up and down along the side wall, realize that confined pressure is simulated；
Displacement synchronous load maintainer, including driving machine, be horizontally placed in the filler casing cylindrical barrel, positioned at described
In filler casing and the semi-cylindrical barrel parallel with the cylindrical barrel, the interior end opening for being covered in the cylindrical barrel
The circular baffle plate at place and be covered in the semi-cylindrical barrel inner opening Semicircular baffle；The cylindrical barrel
The housing is stretched out in outer end and the outer end of the semi-cylindrical barrel, and is connected respectively with the driving machine, the driving machine
The internal synchronization of the circular baffle plate and the Semicircular baffle to the filler casing is driven to move horizontally；
At least two parts of fillers, slicing and filling is in the filler casing from bottom to up, and the color of the filler in adjacent layer is not
Together；
Measurement assembly, including be evenly arranged in respectively in the circular baffle plate multiple soil pressure sensors, be arranged on it is described plus
Confined pressure sensor, Acquisition Instrument and processor on pressing plate, the Acquisition Instrument and the soil pressure sensor, the confined pressure sensor
It is electrically connected, and receives its pressure signal sent, the processor handles each pressure signal.
2. the displacement loading three dimensional taest device of shield driving face stability analysis as claimed in claim 1, it is characterised in that
The radius of the cylindrical barrel is identical with the radius of the semi-cylindrical barrel, in sustained height, in same during experiment
Ambient stress, the vertical section and cross section in same tunnel can be tested and simulated, show its three-dimensional displacement stress situation.
3. the displacement loading three dimensional taest device of shield driving face stability analysis as claimed in claim 1, it is characterised in that
The soil pressure sensor is evenly arranged in the circular baffle plate along its warp and weft.
4. the displacement loading three dimensional taest device of shield driving face stability analysis as claimed in claim 2, it is characterised in that
The driving machine includes two screw rods laterally set, shaft coupling and handwheel；
Two screw rods be respectively placed in the cylindrical barrel and the semi-cylindrical barrel in, and respectively with the circle
Baffle plate and the Semicircular baffle can be connected rotationally；The shaft coupling connects two screw rods, the handwheel with it is described
Axle device connects；
By rotating the handwheel, drive the shaft coupling to rotate, and drive two screw rods synchronously to do stretching motion, two
The stretching motion of the screw rod promotes the circular baffle plate and the Semicircular baffle level of synchronization to move respectively.
5. the displacement loading three dimensional taest device of shield driving face stability analysis as claimed in claim 1, it is characterised in that
The thickness for the filler being filled in above the cylindrical barrel is more than 0, and is less than or equal to the cylindrical barrel diameter
Three times.
6. the displacement loading three dimensional taest device of the shield driving face stability analysis as described in any one of claim 1 to 5, its
It is characterised by, the filler is sand.
7. the displacement loading three dimensional taest device of the shield driving face stability analysis as described in any one of claim 1 to 5, its
It is characterised by, the side wall is all made up of transparent material, and transparent scale paper is puted up thereon, and minimum scale is 1 millimeter.
8. the displacement loading three dimensional taest device of shield driving face stability analysis as claimed in claim 1, it is characterised in that
The side wall includes four pieces of wallboards, and four pieces of wallboards surround rectangular cylinder；
The outer end of the cylindrical barrel and the outer end of the semi-cylindrical barrel pass perpendicularly through one of wallboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721175797.4U CN207197938U (en) | 2017-09-13 | 2017-09-13 | The displacement loading three dimensional taest device of shield driving face stability analysis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721175797.4U CN207197938U (en) | 2017-09-13 | 2017-09-13 | The displacement loading three dimensional taest device of shield driving face stability analysis |
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| CN207197938U true CN207197938U (en) | 2018-04-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664600A (en) * | 2017-09-13 | 2018-02-06 | 北京林业大学 | The displacement loading three dimensional taest device and method of shield driving face stability analysis |
| CN112071182A (en) * | 2020-09-22 | 2020-12-11 | 中铁隧道局集团有限公司 | Visual test box for half-section tunneling of miniature tunneling machine |
| CN114136970A (en) * | 2021-12-02 | 2022-03-04 | 内蒙古科技大学 | Experimental method for researching back soil effect caused by rectangular pipe jacking tunneling |
-
2017
- 2017-09-13 CN CN201721175797.4U patent/CN207197938U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664600A (en) * | 2017-09-13 | 2018-02-06 | 北京林业大学 | The displacement loading three dimensional taest device and method of shield driving face stability analysis |
| CN112071182A (en) * | 2020-09-22 | 2020-12-11 | 中铁隧道局集团有限公司 | Visual test box for half-section tunneling of miniature tunneling machine |
| CN114136970A (en) * | 2021-12-02 | 2022-03-04 | 内蒙古科技大学 | Experimental method for researching back soil effect caused by rectangular pipe jacking tunneling |
| CN114136970B (en) * | 2021-12-02 | 2024-01-26 | 内蒙古科技大学 | Experimental method for researching back soil effect caused by rectangular pipe-jacking tunneling |
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