CN109932501A - Visual slurry shield excavation face buckling form experimental rig and test method - Google Patents
Visual slurry shield excavation face buckling form experimental rig and test method Download PDFInfo
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- CN109932501A CN109932501A CN201910241919.2A CN201910241919A CN109932501A CN 109932501 A CN109932501 A CN 109932501A CN 201910241919 A CN201910241919 A CN 201910241919A CN 109932501 A CN109932501 A CN 109932501A
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Abstract
The present invention relates to visual slurry shield excavation face buckling form experimental rigs, including soil body simulation system, shield simulation system, muddy water system, air pressurization system, monitoring system；Shield simulation system is arranged in soil body simulation system；Shield simulation system includes constituting the simulation shield casing of confined chamber, the flexible membrane in excavation simulation face, the second rigid wall；Air chamber, the muddy water chamber with flexible membrane for one of cavity wall are provided in confined chamber；Shield simulation system further includes the separator for separating muddy water chamber, air chamber and both adjustable volume；Muddy water is intracavitary to fill the mud being filled with by muddy water system；Pass through the supporting pressure of air pressurization system and muddy water system call interception flexible membrane；Monitor the variation of the system monitoring soil body.Also relate to visual slurry shield excavation face buckling form test method.Belong to Tunnel Engineering field.Practical excavation face stress and deformation can be simulated realistically, prediction stability is more acurrate.
Description
Technical field
The invention belongs to Tunnel Engineering fields, more particularly to visual slurry shield excavation face buckling form experimental rig
And test method.
Background technique
In recent years, with the continuous development of social economy and urbanization process, slurry balance shield builds the skill in tunnel
Art is more and more mature, is indispensable key technology in the infrastructure constructions such as China's major motor vehicle.In shield tunnel
In digging process, reasonable excavation face supporting pressure is set, guarantees that the stabilization of excavation face is most important to safe construction.In addition,
During Shield Tunneling, complicated soil layer is inevitably passed through, excavation face supporting pressure is too large or too small all
The unstable failure that can cause the soil body in front of excavation face, causes ground settlement or protuberance, will appear irremediable engineering when serious
Accident.
It needs to inject a certain amount of mud in muddy water cabin when slurry balance shield machine tunnels, forms mud pressure to balance
The pressure of the soil body in front of excavation face.Currently, many scholars realize the test of excavation simulation face unstability using different methods.But
Being is simulation slurry balance shield driving mostly in terms of slurry balance shield；In terms of the unstability of excavation simulation face, nearly all
Be pulled back by hydraulic loading system excavation face (its excavation face is simulated by rigid plate) or reduce pressure come the mistake in excavation simulation face
Steady process, the model test apparatus of few simulation slurry balance shield excavation face unstabilitys.In existing model test, muddy water is flat
Weigh the stress and deformation and actual there are biggish differences in shield tunneling face.
Summary of the invention
For the technical problems in the prior art, the object of the present invention is to provide can simulate realistically actually to open
The visual slurry shield excavation face buckling form experimental rig of digging face stress and deformation；And provide visual muddy water
Shield tunneling face buckling form test method, can the truer practical excavation face of simulation stress and deformation, more accurately
The stability of ground prediction excavation face.
In order to achieve the above object, the present invention adopts the following technical scheme:
Visual slurry shield excavation face buckling form experimental rig, including soil body simulation system, shield simulation system,
Muddy water system, air pressurization system, monitoring system；Soil body simulation system includes model casing, the soil body for being filled in model casing；Shield
Simulation system is arranged in the soil body；Shield simulation system includes simulating the vertically arranged flexibility of shield casing, excavation simulation face
Film, the second rigid wall；Flexible membrane is fixed to be blocked in the front end of simulation shield casing；After second rigid wall is located at flexible membrane
Side, and periphery and simulation shield casing inner wall are affixed；It is formed between simulation shield casing, flexible membrane and the second rigid wall closed
Room, be provided in confined chamber air chamber, with flexible membrane be one of cavity wall muddy water chamber；Shield simulation system further includes separating
The separator of muddy water chamber, air chamber；Separator includes the adjustable moving portion in position, position control muddy water chamber, the air of moving portion
The volume of chamber；Muddy water chamber is connected with muddy water system, and muddy water is intracavitary to fill the mud being filled with by muddy water system；Air chamber and air
Compression system is connected, and air pressurization system controls the pressure of air chamber；Monitor the variation of the system monitoring soil body.
Wherein, when choosing flexible membrane, the material that can be blocked the soil body and cannot seep water need to be selected；The softness of flexible membrane
The pressure of the mud of muddy water chamber should be able to be made to be acted on the soil body in front well, i.e., be flexibly bonded the front soil body；Such as soil
Work film.After this structure, using flexible membrane excavation simulation face, supporting pressure is mainly provided by the mud pressure of muddy water chamber,
Similar to slurry balance shield method in practice, cooperate air chamber and muddy water intonation whole by air pressurization system, muddy water system
Pressure of the mud to flexible membrane；Sufficiently pressurization of the simulation slurry balance shield machine to excavation face, is different from balancing earth-pressure shielding machine
Pressurization to excavation face, compared to use rigid plate excavation simulation face supporting pressure model (supporting pressure be rigid plate pressure
Power), the stress and deformation of actual excavation face, preferably the supporting pressure of observation analysis excavation face can be simulated realistically
With unstability situation.And structure is simple, convenient for operation.
As a preference, the side of model casing is transparent material, upper opening, preferably with organic transparent glass；The soil body
For transparent soil.After this structure, visualization is realized, analyze convenient for monitoring observation.
As a preference, the shape of simulation shield casing is semicircle curved surface of column；When installation, two of semicircle curved surface of column are straight
While being fastened on the side of model casing, and the semicircle column casing of opening to front-rear direction is constituted with model casing；Flexible membrane, the second rigidity
Partition and semicircle column casing surround confined chamber.After this structure, semicolumn cylinder mould intends the tunnel of half, and symmetry is recycled to examine
Consider whole situation, and deformation, displacement and the Instability of the load condition and excavation face convenient for observation shield.
As a preference, shield simulation system further includes third rigid wall；Separator includes the first rigid wall, makees
For the horizontal piston plate of moving portion；First rigid wall is arranged between flexible membrane and the second rigid wall；Third rigidity every
The front and back ends of plate are closed affixed with the first, second rigid wall respectively, and upper and lower end is all closed with the inner wall of simulation shield casing
It is affixed；Piston plate is vertical with the inner wall of the first, second, third rigid wall and model casing respectively and is in close contact；Piston plate
It is moved up and down along third rigid wall, the chamber on the upside of piston plate is air chamber.After this structure, air chamber can be passed through
Air pressure adjusts the upper and lower position of piston plate, and then adjusts muddy water chamber mud to the pressure of excavation face, reaches and adjusts supporting pressure
The purpose of power.
As a preference, the edge of the first rigid wall and the locular wall of confined chamber are closely affixed, the first rigid wall
There are the holes for being connected to muddy water chamber front and muddy water chamber rear portion between lower section and simulation shield casing.After this structure, mud
Linker is formed between water cavity front and muddy water chamber rear portion, can effectively pass through the pressure controlling supporting pressure of air chamber.
As a preference, the part as air chamber cavity wall is equipped with and air pressurization system phase on the second rigid wall
The air scoop connect, the part as muddy water chamber cavity wall are equipped with the muddy water mouth to connect with muddy water system.After this structure, structure
It is compact.
As a preference, monitoring system includes displacement sensor, pressure sensor；The soil body upper end in face where flexible membrane
Surface is evenly arranged with displacement sensor in left-right direction, is evenly arranged with displacement in the soil body in front of flexible membrane along the longitudinal direction
Sensor；Pressure sensor is arranged on the middle position of flexible membrane.After this structure, it can more fully monitor and be collected into
The information of the buckling deformation of the soil body.
As a preference, being provided with trace particle in transparent soil, monitoring system further includes laser, high-precision camera shooting
Machine；Laser and high-precision camera arrangements are around model casing.After this structure, using Particle Image Velocimetry,
The image taken is portrayed as polar plot using computer, the displacement in front of excavation face in silver oxide selective oxidation can be researched and analysed
Vector field change procedure.
As a preference, being also provided with groundwater simulation system；Groundwater simulation system includes water pump, water tank, water outlet
Pipe and the spray head sprayed to the soil body；Outlet pipe one end connects water tank, and the other end is equipped with spray head；The upper of model casing is arranged in spray head
Side.After this structure, the working environment of a variety of soil body situations can be simulated with simulated groundwater system.
Visual slurry shield excavation face buckling form test method, is excavated using the visual slurry shield
Face buckling form experimental rig；Test procedure includes:
(1) before testing, muddy water chamber and model casing are all to be not filled by state；Configured mud is simultaneously filled with mud by configuration mud
Water system；
(2) according to the soil body that need to be filled, mud is filled into muddy water chamber by starting muddy water system, air pressurization system, and
It is assisted with pressure sensor, the occupied state of mud is adjusted by muddy water system, air pressurization system, air chamber, by mud pair
The pressure of flexible membrane is adjusted to the pressure of energy balancing flexible film front body to be banketed；
(3) the populated soil body in model casing；When needing simulated groundwater, start groundwater simulation system for water
It injects in the soil body, until water stops after reaching object height；
(4) pressure of air chamber is adjusted by air pressurization system to adjust the position of piston plate, is gradually reduced mud pair
The pressure of flexible membrane simulates silver oxide selective oxidation, and pass by displacement sensor, pressure until the front soil body crushes flexible membrane
Sensor real-time monitoring collects data；Image information is collected by laser, high-precision video camera；
(5) collected data are combined with the theoretical analysis of, and handles image information and obtains dependent vector field, analyze unstability mistake
Face stability is excavated in journey, prediction.
After in this way, can the truer practical excavation face of simulation stress and deformation, accurately in advance
Survey the stability of excavation face.
Generally speaking, the present invention has the advantage that
1) flexible membrane excavation simulation face is used, common rigid plate excavation simulation face face is different from, mud can be simulated realistically
Water quality structure excavation face actual conditions；
2) pressure intracavitary by control air chamber and muddy water, carrys out the unstability of necromancer body in face of excavation simulation, is different from often
Hydraulic stem is pulled back square sediment failure in face of rigid plate excavation simulation；
3) it is combined by monitoring means with theory analysis, realizes the prediction for excavating face stability to slurry balance shield；
4) experimental rig used in is simple and convenient, and accuracy is high.
Detailed description of the invention
Fig. 1 is the overall structure diagram of visual slurry shield excavation face buckling form experimental rig.
Fig. 2 is the front side view of section where the flexible membrane of visual slurry shield excavation face buckling form experimental rig
Figure.
Fig. 3 is the structural schematic diagram for simulating shield casing internal.
It is as shown in the figure:
1- model casing, the transparent soil of 2-, 3- simulate shield casing, 4- air pipeline switch, 5- air pressurization system, 6- muddy water
System, 7- hold-down support, 8- muddy water pipe switch, the second rigid wall of 9-, 10- third rigid wall, the rigidity of 11- first every
Plate, 12- pressure sensor, the displacement sensor in front of 13- flexible membrane, 14- flexible membrane, 15- muddy water chamber, the 4th rigidity of 16- every
Plate, 17- air chamber, 18- telescopic rod, 19- piston plate, 20- water pump, 21- water tank, 22- outlet pipe, 23- spray head, the 24- soil body
The displacement sensor on surface, 25- high-precision video camera, 26- laser, 27- computer.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail.It illustrates, front side in text
For the left side of Fig. 1.
(1) visual slurry shield excavation face buckling form experimental rig
Visual slurry shield excavation face buckling form experimental rig, including soil body simulation system, shield simulation system,
Muddy water system, air pressurization system, monitoring system, hold-down support, fixed bracket.
Soil body simulation system includes the model casing that top is opening, the soil body for being filled in model casing；The front and back of model casing is left
Right four sides are organic transparent glass；The soil body is transparent soil；Transparent soil is included missing particle, and trace particle selects wollastonite
Particle.
Shield simulation system is arranged in the soil body.Shield simulation system include simulate shield casing, excavation simulation face it is perpendicular
To the flexible membrane of setting, the first rigid wall, the second rigid wall, the laterally piston plate that is arranged.
Simulation shield casing is the steel that shape is semicircle curved surface of column；When installation, two straight flanges of semicircle curved surface of column are fastened
On the side of model casing, simulation shield casing and model casing constitute the semicircle column casing of opening to front-rear direction, simulate half
Tunnel.
Select can block the soil body and cannot seep water, can flexibly be bonded front the soil body flexible membrane.
Flexible membrane pastes the front end face of the fixed semicircle column casing for blocking and constituting in simulation shield casing and model casing；Second just
Property partition be fixed on simulation shield casing and model casing constitute semicircle column casing middle part.Second rigid wall, flexible membrane, simulation
The semicircle column casing that shield casing and model casing are constituted surrounds a closed space jointly, is provided in the confined space closed
Air chamber, with flexible membrane be one of cavity wall closed muddy water chamber.Between muddy water chamber and air chamber just by vertical first
Property partition, horizontal piston plate separate.
First rigid wall is arranged between flexible membrane and the second rigid wall, the first rigid wall, the second rigid wall
It is perpendicular with piston plate；Chamber on the upside of piston plate is air chamber.In the lower part of muddy water chamber, it is separated by with the first rigid wall
Muddy water chamber front, muddy water chamber communicate between rear portion.
Shield simulation system further includes third rigid wall, the 4th rigid wall, telescopic rod；Third rigid wall is vertical
The abdomen of simulation shield casing is set, the front end of third rigid wall, rear end respectively with the first rigid wall, the second rigidity every
Plate is closed affixed, and upper end, lower end are all closed affixed with the inner wall of simulation shield casing.Four sides of piston plate are rigid with third respectively
The inner wall close contact of partition, the first rigid wall, the second rigid wall, model casing；Piston plate is above and below third rigid wall
It is mobile.When setting third rigid wall mainly serves for ensuring piston plate up and down motion, air chamber is always to be mutually separated with muddy water chamber
Two chambers.
In air chamber and parallel with piston plate, the air chamber top on the upside of the 4th rigid wall is arranged in 4th rigid wall
It is connected to the air chamber lower part on the downside of it；Scalable connecting rod is perpendicular to the 4th rigid wall, piston plate, and both ends are respectively with
Four rigid walls, piston plate are fixedly connected.
The lower part of first rigid wall extends to the lower part of muddy water chamber, the lower end of the first rigid wall and simulation shield casing
There are hole, communicate the muddy water chamber front being separated by with the first rigid wall, muddy water chamber between rear portion.First rigid wall removes down
Except end margin, the semicircle column casing that shield casing and model casing are constituted immediately is simulated at the edge of first remaining position of rigid wall
Inner wall.
On second rigid wall, the part as air chamber cavity wall is equipped with the air scoop to connect with air pressurization system, makees
The muddy water mouth to connect with muddy water system is equipped with for the part of muddy water chamber cavity wall.
Muddy water system is connected with muddy water mouth by inlet pipe, and muddy water pipe switch is provided on inlet pipe；Air pressurized
System and air scoop are connected by air inlet pipe, and air pipeline switch is provided in air inlet pipe.Air pressurization system, muddy water system
It is fixed on hold-down support.
Monitoring system includes displacement sensor, pressure sensor.
Displacement sensor includes 12 displacement meters；It is cross-section that 7 displacement meters are evenly arranged in flexible membrane place in left-right direction
On the soil body upper surface in face, 5 displacement meters are embedded in along the longitudinal direction in the soil body in front of flexible membrane；To monitor Instability
The soil body collapses situation and collects data.Pressure sensor is arranged on the center of flexible membrane, to real-time monitoring muddy water
Intracavitary mud pressure.
Monitoring system further includes at least one laser, at least one high-precision video camera；Laser and high-precision image
Machine is arranged in around model casing.In Instability, soil body trace particle can be imaged under the irradiation of laser and by high-precision
Degree video camera is quickly shot, and the image taken is finally portrayed as polar plot using computer, can research and analyse excavation
The change procedure of displacement vector field in square silver oxide selective oxidation in front.
Visual slurry shield excavation face buckling form experimental rig further includes groundwater simulation system；Groundwater simulation
System includes water pump, water tank, outlet pipe and the spray head to soil body sprinkling irrigation；Outlet pipe one end connects water tank, and the other end is equipped with spray
Head；The top of model casing is arranged in spray head.Water tank is fixed on support bracket fastened upper end；Water pump is fixed on fixed bracket.
Working principle: muddy water system injects mud, the pressure that air pressurization system passes through change air chamber into muddy water chamber
Mud is controlled to the supporting pressure of flexible face；Mud is gradually reduced to the supporting pressure of flexible face by air pressurization system later
Power, to simulate the Instability of the soil body in front of slurry balance shield excavation face；And it using monitoring system monitoring and collects and surveys
Required information.
(2) visual slurry shield excavation face buckling form test method
Visual slurry shield excavation face buckling form test method: the visual slurry shield in embodiment is used
Excavation face buckling form experimental rig；Itself specific steps are as follows:
(1) experimental rig is installed before testing；Wherein, muddy water chamber and model casing are all to be not filled by state；Configure mud simultaneously
Configured mud is filled with muddy water system；
(2) according to the soil body that need to be filled mud is filled into muddy water chamber by the case where, starting muddy water system, air pressurization system
In, and assisted by pressure sensor, the filling situation of mud is adjusted to adjust muddy water by muddy water system, air pressurization system
To the pressure of flexible membrane, to after the soil body of filling model casing in front of balancing flexible film the soil body pressure, i.e. supporting pressure；
(3) soil body is filled in model casing；When needing simulated groundwater situation, starting groundwater simulation system infuses water
Enter in the soil body, until water stops after reaching object height；
(4) pressure that air chamber is adjusted by air pressurization system is gradually reduced mud to the pressure of flexible membrane, before
Necromancer body crushes flexible membrane, simulates silver oxide selective oxidation, and collect number by displacement sensor and pressure sensor real-time monitoring
According to being combined with the theoretical analysis of data；
(5) in simulation silver oxide selective oxidation, at the same it is total by the trace particle of laser, high-precision video camera, the soil body
Same-action is collected into image information, handles to obtain vector field, analytical soil sample Instability through computer.
Wherein in (4) step, realize that prediction includes following to face stability prediction is excavated by monitoring the data being collected into
It is theoretical:
(1) the load factor (Load Factor, write a Chinese character in simplified form LF), for characterizing the degree of stability in tunnel excavation face, the parameter is fixed
Adopted formula are as follows:
In formula, NcNeutrality coefficient when for excavation face collapse breaks；N is the coefficient of stability under free position, can be led to
Cross following formula calculating:
In formula, σsAnd σTRespectively overcharge on ground and excavation face supporting pressure；γ is soil body bulk density；suIt is not drained for the soil body
Shearing strength；Z0For tunnel axis buried depth.
(2) ground loss ratio calculating formula are as follows:
In formula, SmaxFor earth's surface maximum vertical displacement；μ is ground loss ratio；R is model shield radius；I is sedimentation groove width
Spend coefficient；Z0For edpth of tunnel；For the internal friction angle of soil.
(3) relationship of ground loss ratio and the load factor:
μ=0.23e4.4LF
By monitoring earth's surface Vertical Settlement, ground loss ratio μ is calculated, to obtain the value of load factor LF, and logical
The pressure at monitoring focal point of working is crossed, the coefficient of stability N under free position is calculated, is finally calculated and obtains excavation face
Critical supporting pressure when fall damage, predicts the stability of excavation face.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. visual slurry shield excavation face buckling form experimental rig, it is characterised in that: including soil body simulation system, shield
Simulation system, muddy water system, air pressurization system, monitoring system；
Soil body simulation system includes model casing, the soil body for being filled in model casing；Shield simulation system is arranged in the soil body；Shield mould
Quasi- system includes simulation shield casing, the vertically arranged flexible membrane in excavation simulation face, the second rigid wall；
Flexible membrane is fixed to be blocked in the front end of simulation shield casing；Second rigid wall is located at the rear side of flexible membrane, and periphery with
It is affixed to simulate shield casing inner wall；It simulates and forms confined chamber between shield casing, flexible membrane and the second rigid wall, in confined chamber
It is provided with air chamber, the muddy water chamber with flexible membrane for one of cavity wall；
Shield simulation system further includes the separator for separating muddy water chamber, air chamber；Separator includes the adjustable moving portion in position, is moved
The volume of the position control muddy water chamber in dynamic portion, air chamber；Muddy water chamber is connected with muddy water system, and the intracavitary filling of muddy water is by muddy water system
The mud that system is filled with；Air chamber is connected with air pressurization system, and air pressurization system controls the pressure of air chamber；Monitoring system
Monitor the variation of the soil body.
2. visual slurry shield excavation face buckling form experimental rig described in accordance with the claim 1, it is characterised in that: mould
The side of molding box is transparent material, and the soil body is transparent soil.
3. visual slurry shield excavation face buckling form experimental rig according to claim 2, it is characterised in that: mould
The shape of quasi- shield casing is semicircle curved surface of column；When installation, two straight flanges of semicircle curved surface of column are fastened on the side of model casing,
And the semicircle column casing of opening to front-rear direction is constituted with model casing；Flexible membrane, the second rigid wall and semicircle column casing surround closed
Room.
4. visual slurry shield excavation face buckling form experimental rig described in accordance with the claim 1, it is characterised in that: shield
Structure simulation system further includes third rigid wall；Separator includes the first rigid wall, the horizontal piston plate as moving portion；
First rigid wall is arranged between flexible membrane and the second rigid wall；The front and back ends of third rigid wall are respectively with first,
Two rigid walls are closed affixed, and upper and lower end is all closed affixed with the inner wall of simulation shield casing；Piston plate is respectively with first,
Two, the inner wall of third rigid wall and model casing is vertical and is in close contact；Piston plate is moved up and down along third rigid wall, living
Chamber on the upside of seben is air chamber.
5. visual slurry shield excavation face buckling form experimental rig according to claim 4, it is characterised in that: the
The edge of one rigid wall and the locular wall of confined chamber are closely affixed, stay between the lower section and simulation shield casing of the first rigid wall
There is the hole of connection muddy water chamber front and muddy water chamber rear portion.
6. visual slurry shield excavation face buckling form experimental rig according to claim 4, it is characterised in that: the
On two rigid walls, the part as air chamber cavity wall is equipped with the air scoop to connect with air pressurization system, as muddy water chamber chamber
The part of wall is equipped with the muddy water mouth to connect with muddy water system.
7. visual slurry shield excavation face buckling form experimental rig according to claim 2, it is characterised in that: prison
Examining system includes displacement sensor, pressure sensor；The soil body upper end face in face is uniformly arranged in left-right direction where flexible membrane
There is displacement sensor, is evenly arranged with displacement sensor along the longitudinal direction in the soil body in front of flexible membrane；Pressure sensor setting
On the middle position of flexible membrane.
8. visual slurry shield excavation face buckling form experimental rig according to claim 7, it is characterised in that: thoroughly
It is provided with trace particle in bright soil, monitoring system further includes laser, high-precision video camera；Laser and high-precision video camera cloth
It sets around model casing.
9. visual slurry shield excavation face buckling form experimental rig described in accordance with the claim 1, it is characterised in that: also
Including groundwater simulation system；Groundwater simulation system includes water pump, water tank, outlet pipe and the spray head to soil body sprinkling irrigation；Water outlet
Pipe one end connects water tank, and the other end is equipped with spray head；The top of model casing is arranged in spray head.
10. visual slurry shield excavation face buckling form test method, it is characterised in that: any using claim 1-9
Visual slurry shield excavation face buckling form experimental rig described in；Test procedure includes:
1) before testing, muddy water chamber and model casing are all to be not filled by state；Configured mud is simultaneously filled with muddy water system by configuration mud
System；
2) according to the soil body that need to be filled, mud is filled into muddy water chamber by starting muddy water system, air pressurization system, and with pressure
Sensor auxiliary adjusts the occupied state of mud by muddy water system, air pressurization system, air chamber, by mud to flexible membrane
Pressure be adjusted to can in front of balancing flexible film body to be banketed pressure；
3) soil body is filled in model casing；If desired simulated groundwater situation, starting groundwater simulation system inject water into the soil body
In, until water stops after reaching object height；
4) pressure of air chamber is adjusted by air pressurization system to adjust the position of piston plate, is gradually reduced mud to flexible membrane
Pressure, simulate silver oxide selective oxidation, and by displacement sensor, pressure sensor real-time monitoring collect data；Pass through laser
Device, high-precision video camera collect image information；
5) collected data are combined with the theoretical analysis of, and handles image information and obtains dependent vector field, analyze Instability, prediction
Excavate face stability.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910241919.2A CN109932501A (en) | 2019-03-28 | 2019-03-28 | Visual slurry shield excavation face buckling form experimental rig and test method |
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| CN201910241919.2A CN109932501A (en) | 2019-03-28 | 2019-03-28 | Visual slurry shield excavation face buckling form experimental rig and test method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189760A (en) * | 2020-03-13 | 2020-05-22 | 浙江大学城市学院 | Test device and method for simulating influence of seepage on front stratum during shield starting |
| CN111650365A (en) * | 2020-07-14 | 2020-09-11 | 清华大学 | Intelligent grouting multifunctional test device |
| CN111707805A (en) * | 2020-06-01 | 2020-09-25 | 中电建路桥集团有限公司 | Model test system for simulating excavation of tunnel rock-like pile body and operation method |
| CN117684953A (en) * | 2023-12-11 | 2024-03-12 | 江苏省环境科学研究院 | Visual detection equipment and detection method for non-aqueous phase liquid pollutants of underground water |
-
2019
- 2019-03-28 CN CN201910241919.2A patent/CN109932501A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189760A (en) * | 2020-03-13 | 2020-05-22 | 浙江大学城市学院 | Test device and method for simulating influence of seepage on front stratum during shield starting |
| CN111189760B (en) * | 2020-03-13 | 2024-05-14 | 浙江大学城市学院 | Test device and method for simulating influence of seepage flow on front stratum during shield launching |
| CN111707805A (en) * | 2020-06-01 | 2020-09-25 | 中电建路桥集团有限公司 | Model test system for simulating excavation of tunnel rock-like pile body and operation method |
| CN111707805B (en) * | 2020-06-01 | 2022-05-24 | 中电建路桥集团有限公司 | Model test system for simulating excavation of tunnel rock-like pile body and operation method |
| CN111650365A (en) * | 2020-07-14 | 2020-09-11 | 清华大学 | Intelligent grouting multifunctional test device |
| CN111650365B (en) * | 2020-07-14 | 2021-05-07 | 清华大学 | Intelligent grouting multifunctional test device |
| CN117684953A (en) * | 2023-12-11 | 2024-03-12 | 江苏省环境科学研究院 | Visual detection equipment and detection method for non-aqueous phase liquid pollutants of underground water |
| CN117684953B (en) * | 2023-12-11 | 2024-05-24 | 江苏省环境科学研究院 | Visual detection equipment and detection method for non-aqueous phase liquid pollutants of underground water |
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Application publication date: 20190625 |