CN110208485A - A kind of experimental rig formed for slurry shield mud film and seepage failure is tested - Google Patents
A kind of experimental rig formed for slurry shield mud film and seepage failure is tested Download PDFInfo
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- CN110208485A CN110208485A CN201910427078.4A CN201910427078A CN110208485A CN 110208485 A CN110208485 A CN 110208485A CN 201910427078 A CN201910427078 A CN 201910427078A CN 110208485 A CN110208485 A CN 110208485A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/04—Investigating osmotic effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a kind of experimental rigs formed for slurry shield mud film and seepage failure is tested, including seepage apparatus, pneumatic shuttle, hydraulic devices and console, seepage apparatus includes seepage flow cylinder, upper cover, pedestal, porous disc and pull rod, upper cover and pedestal are respectively arranged in the upper and lower ends of seepage flow cylinder, it is connected between upper cover and pedestal by pull rod, porous disc is equipped with multiple permeable holes, porous disc is placed on pedestal and is located in seepage flow cylinder, gas source connector is installed in the middle part of upper cover, gas source connector is connect with pneumatic shuttle, pedestal is equipped with water transport channel and the inner end of the water transport channel is communicated with seepage flow cylinder, outer end is equipped with water source connector, water source connector is connect with hydraulic devices.The present invention can relatively accurately simulate the process that mud film is formed in true slurry shield construction stratum, to accurately complete the development test of the relevant natures such as the formation of mud film and its seepage failure in slurry shield construction.
Description
Technical field
The present invention relates to a kind of civil engineering shield tunnelling analogue test devices, more particularly to one kind to be used for slurry shield mud
Film is formed and the experimental rig of seepage failure test.
Background technique
In the exploitation of the underground space, shield method is small to surrounding environment influence since its construction is quick, safety, increasingly
Be taken seriously, in engineering practice, shield method is adapted to building for tunnel under different-diameter, formation condition, wherein across river, more
Favor of the slurry shield by policymaker in extra large tunneling.Slurry shield needs to inject in digging face at work prepared
Pressurized mud come balance front water, soil pressure, maintain digging face stabilization, guarantee construction safety.
The digging face of slurry shield will obtain stabilization, and the pressure needs of mud are effectively converted to Fang Shui, soil in face of digging
The equilibrant force of pressure, usual mud pressure are greater than water pressure in stratum, the trend permeated in the oriented stratum of mud, thus in shield
Excavation face form the mud membrane structure of one layer of fine and close hyposmosis coefficient, prevent mud from permeating to stratum, while also by mud
Pressure is converted into the equilibrant force to Fang Shui in face of excavation, soil pressure.Although there is many slurry shields successful in Different Strata
Project case, but the Mechanism Study formed for slurry shield digging face place mud film is not very thorough.
In the prior art, the patent of invention of Patent No. " ZL 2013102052684 ", discloses a kind of slurry shield mud
The simulation test device of film forming process stores and is connected at the top of mud box with the outlet of pneumatic supply, and top is equipped with pressure sensor, bottom
It places on an electronic balance in portion；Loaded filter is arranged at the bottom in soil sample cabin, and soil sample is placed on loaded filter top, and soil sample cabin is in the axial direction
Side wall equipped with TDR pop one's head in, Probe arrangement in soil sample, on side wall arrange seven sensor for pore water pressure, store mud box lower part and soil
Connection, soil sample cabin lower part outlet are connected with water storage lower box part at the top of sample cabin；It is connected at the top of water storage box with the outlet of pneumatic supply, water storage
It is connected at the top of upper box part and seepage discharge measuring cylinder, seepage discharge measuring cylinder bottom is put on an electronic balance.The invention is in different mud
Under formulation condition, by mud apply driving pressure be allowed to penetrate into soil sample, and monitor different moments mud seepage distance and
Pore pressure distribution, verifies the maximum conditions of mud film forming, discloses the relationship that mud film infiltration coefficient changes over time, and research mud film is formed
Process instructs slurry shield to construct.
Application No. is the applications for a patent for invention of " 2010101181985 ", disclose a kind of for slurry shield shape under high pressure
At the test method of mud film comprising following steps: undisturbed soil is taken from building site, and the bulky grain in removal soil is sieved after dry,
It is then charged into test staving；Upper flange cover board is opened, will be washed by water in test staving, and be spread water using radial when bath, then cover
Upper upper flange cover board, and ensure to seal between upper flange cover board and test staving；To close between upper flange cover board and test staving
It is honored as a queen, air is pressed into test staving top by air compressor；Under conditions of maintaining pressure, water is discharged；Pass through mud
Stock pump injects the muddy water after adding fluorescent material to test staving top；It is empty to the indentation of test staving top by air compressor
Gas is pressurized；Air is pressed into test staving top by air compressor again；After above-mentioned test to be done, staving will be tested
It is horizontal positioned.The patent application can be used for studying slurry shield front and stablize mechanical mechanism and soil body mechanical property.
The patent of invention of Patent No. " ZL 201110047667.3 " discloses a kind of slurry shield mud film forming process
Simulation test device, composition be: simulate and freezing pipe be distributed in the model casing of tunnel structure；The input end of freezing pipe passes through
Connecting tube is connect with liquid nitrogen container, and outlet end reaches outside model casing；The inlet end and an outlet end of freezing pipe and the connection of model casing
It is to be tightly connected；The roof of model casing is sealedly connected with forcing pipe；The side of model casing is equipped with shield machine set and heals up；Model casing
It is interior to be filled with the soil body, it is equipped with one layer of foam between the soil body and model tank wall, it is also embedding in the soil body to have temperature sensor.The device energy
The mud film formation condition during slurry shield is enough simulated, and the mud film of formation is freezed to solidify, the convenient shape to mud film
State is observed and is analyzed with structure, to obtain the Forming Mechanism of mud extraction film and the relationship with various boring parameters, and then is mud
The design of water shield-tunneling construction and slurry shield machine provides more scientific reliable test basis.
Patent of invention or patent application disclosed above has the following deficiencies:
Since the pore water in stratum not only has an impact to the formation of mud film, but also have after being formed with mud film to the stabilization of mud film
It closes；The influence of patent of invention or patent application disclosed above to stratum Pore Pressure to mud film considers insufficient；On meanwhile
Invention disclosed patent or patent application are stated during carrying out the formation test of slurry shield mud film, to stratum pore water pressure
The narrow range that power is adjusted is simulated actual formation Pore Pressure not true enough.
In the test that mud film is formed, seepage effect plays important function, due to ground layer soil body particle and experimental rig
Side wall contact it is not close, be easy to cause stronger than in the soil body in sidewall locations seepage effect, keep test result inaccurate, generate side
Wall effect；Patent of invention or patent application disclosed above does not propose to solve to arrange to the seepage flow wall effect during test
It applies.
The stratum that slurry shield can adapt to is more, and the granular size span of ground layer soil body is very big, be in Different Strata
Carry out mud film and form test, meet test requirements document when need to the stratum of various soil mass granular size different-diameter test
It is carried out in device；Patent of invention or patent application disclosed above is tested using a kind of test bucket of diameter, can not be to grain
It is tested on the biggish soil particle stratum of diameter variation range.
Summary of the invention
The object of the invention is that provide a kind of for the formation of slurry shield mud film and infiltration to solve the above-mentioned problems
The experimental rig of saturating failure test, the experimental rig can simulate on different soil particle stratum, Different Strata pore water pressure
Under the conditions of mud film forming and permeability test, and preferably solve test during seepage flow wall effect.
The present invention through the following technical solutions to achieve the above objectives:
A kind of experimental rig formed for slurry shield mud film and seepage failure is tested, including seepage apparatus, air pressure dress
It sets, hydraulic devices and console, the pneumatic shuttle and the hydraulic devices are described under the control of the console respectively
Seepage apparatus provides high-pressure air source and high-pressure water, and the seepage apparatus includes seepage flow cylinder, upper cover, pedestal, porous disc and pull rod,
The upper and lower ends of the vertical seepage flow cylinder are open, and the pedestal of the lateral upper cover and transverse direction is respectively arranged in described
The upper and lower ends of seepage flow cylinder, by vertical pull rod connection between the upper cover and the pedestal, lateral is described permeable
Plate is equipped with multiple vertical permeable holes, and the porous disc is placed on the pedestal and is located in the seepage flow cylinder, the upper cover
Middle part be equipped in vertical through holes and the vertical through holes gas source connector be installed, the gas source connector and the pneumatic shuttle go out
Port connection, the pedestal be equipped with water transport channel and the inner end of the water transport channel communicated with the seepage flow cylinder, the water transport channel
Outer end is equipped with water source connector, and the water source connector is connect with the water outlet of the hydraulic devices.
In above structure, pneumatic shuttle is for generating high-pressure air source under the control of console；Hydraulic devices are for controlling
High-pressure water is generated under the control of platform processed；Console, that is, electrical control main body, it is real by the custom hardware and software of the prior art
Now to the control of pneumatic shuttle and hydraulic devices, pneumatic shuttle and hydraulic devices is made to send out the gas for needing pressure when needed
Body and water flow；Pneumatic shuttle, hydraulic devices and console are the conventional equipment of the prior art, for example, pneumatic shuttle can be
Air compressor machine, hydraulic devices can be water pump, and console can be the controller being made of microprocessor and conventional peripheral circuit；When
So, if console has more equipment and function, pneumatic shuttle is also possible to air-pot, and hydraulic devices are also possible to hydraulic pressure
Bottle；Seepage apparatus is core of the invention structure, for simulating the formation of slurry shield mud film and seepage failure process；Seepage apparatus
Seepage flow cylinder be seepage apparatus core component, its internal filling test soil body when use, high pressure water is added in lower part, top is filled
Mud and mud film are formed after entering high pressure gas, for testing；Upper cover is connected with pedestal by pull rod, and closing seepage flow cylinder is respectively used to
Top and bottom, while gas source connector is arranged in upper cover center, and high pressure gas is filled in cylinder from the upper center of seepage flow cylinder,
Water transport channel and water source connector is arranged in pedestal, high pressure water out of seepage flow cylinder bottom injecting tube, the two cooperatively form mud and
Mud film, and the simulation of different operating conditions can be realized by changing air pressure and water pressure, reach high analogue simulation test objective；Thoroughly
Water plate is for the high pressure water that seepage flow cylinder bottom inject to be uniformly distributed, and the aperture of utilization permeable hole and permeable pitch of holes
Adaptability design realizes that optimal groundwater seepage simulates one of effect and important component of the invention.
Preferably, realizing preferably simulation effect, the infiltration to increase the friction of soil body particle Yu seepage flow cylinder inner wall
The middle and lower sections of the inner wall of flow cartridge are equipped with multiple vertically spaced higher high drag rings of frictional force, and the high drag ring is
Polishing is the frosted ring on coarse sand surface or the cutting ring of indent.
Preferably, the axial width of the high drag ring is 6-10mm, between the two neighboring high drag ring between
Away from for 8-12mm；Height of the high drag ring of the top on the seepage flow cylinder is the 50-60% of the seepage flow cylinder height.
In order to which the hydraulic pressure of different location can be measured in seepage flow cylinder when needed or from two sides different location to seepage flow
Cylinder in pressure, the opposite sides side wall of the seepage flow cylinder be respectively equipped with it is multiple vertically it is spaced for measure hydraulic pressure or to
The lateral spare hole to press in the seepage flow cylinder, the spare hole interior installing hole plug.Stopple closes spare hole when not in use, no
Influence that mud film is formed and correlation test, when use remove stopple, installation measurement connector and external measuring instrument in spare hole, or
Person installs air pressure or hydraulic pressure connector and external high-pressure air source equipment or high-pressure water equipment in spare hole.
Preferably, the seepage flow cylinder is lucite cylinder.
In order to realize that better mud film forms effect, between the upper cover and the upper end of the seepage flow cylinder, the pedestal with
Waterproof grommet is equipped between the lower end of the seepage flow cylinder.
Preferably, the water transport channel on the pedestal includes that one or more annulars for being set to the base upper surface are recessed
Slot and multiple strip through-holes, the annular groove are communicated with the inner end of the strip through-hole, outside each strip through-hole
End is mounted on the water source connector.This structure enables high pressure water to inject water transport channel and equal from multiple even angles
It is injected up below porous disc evenly, by the infiltration for capableing of more life-like simulation underground water after the permeable hole of porous disc
Effect.
Specifically, the strip through-hole is for 8 and axially uniform along two orthogonal plate faces of the pedestal respectively
Distribution.
Specifically, the both ends of the pull rod are equipped with screw thread, and the both ends of the pull rod are each passed through the logical of the upper cover quadrangle
The through-hole of hole and the pedestal quadrangle is simultaneously secured with nuts, and the pull rod is four and is uniformly distributed in the four of the seepage flow cylinder
Week.
The porous disc is steel plate, and the diameter of the permeable hole is 4-6mm, and multiple permeable holes are equidistantly covered with described
Porous disc and its spacing are 3-8mm.
The beneficial effects of the present invention are:
The present invention injects high pressure water in the lower end of seepage flow cylinder and passes through saturating by being filled with high pressure gas in the upper end of seepage flow cylinder
Water plate enters high pressure water in cylinder in a manner of porous permeable, and can pass through the big of the air pressure of console real-time control and hydraulic pressure
It is small, so as to relatively accurately simulate the process that mud film is formed in true slurry shield construction stratum, thus accurately complete
At slurry shield construct in mud film formed and its development test of the relevant natures such as seepage failure；By in the inner wall of seepage flow cylinder
High drag ring is arranged in lower section, is capable of increasing the friction of soil body particle Yu seepage flow cylinder inner wall, efficiently solves the side in flow event
Wall effect realizes that better mud film forms effect；It, can be outer after mud film is formed by the way that spare hole is arranged in the two sides of seepage flow cylinder
Connect pressure equipment, adjust the pressure of mud film two sides, simulation shield machine open a position tool changing when stress with air contact portion digging face
Situation observes the reaction on stratum, determines the stability in digging face, or utilize the pressure of spare hole measurement mud film different depth,
To complete more test functions and more preferable test effect.
Detailed description of the invention
Fig. 1 is the overall structure of the experimental rig of the present invention for the formation of slurry shield mud film and seepage failure test
Schematic diagram, the seepage apparatus in figure are stereochemical structure view；
Fig. 2 is the seepage apparatus of the experimental rig of the present invention for the formation of slurry shield mud film and seepage failure test
Schematic diagram of main cross-sectional structure；
Fig. 3 is the seepage flow cylinder of the experimental rig of the present invention for the formation of slurry shield mud film and seepage failure test
Schematic diagram of main cross-sectional structure
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in Figure 1, Figure 2 and Figure 3, the test of the present invention formed for slurry shield mud film and seepage failure is tested
Device includes seepage apparatus 5, pneumatic shuttle 3, hydraulic devices 2 and console 1, and pneumatic shuttle 3 and hydraulic devices 2 are controlling respectively
It is that seepage apparatus 5 provides high-pressure air source and high-pressure water under the control of platform 1, seepage apparatus 5 includes seepage flow cylinder 54, upper cover 51, bottom
Seat 59, porous disc 57 and pull rod 55, the upper and lower ends of vertical seepage flow cylinder 54 are open, lateral upper cover 51 and lateral pedestal
59 are respectively arranged in the upper and lower ends of seepage flow cylinder 54, between upper cover 51 and the upper end of seepage flow cylinder 54, pedestal 59 and seepage flow cylinder 54
It is equipped with waterproof grommet 53 between lower end, is connected between upper cover 51 and pedestal 59 by vertical pull rod 55, specific connection structure
Be: the both ends of pull rod 55 are equipped with screw thread, the both ends of pull rod 55 be each passed through 51 4 jiaos of upper cover through-hole and 59 4 jiaos of pedestal logical
Kong Bingyong nut 52 is fixed, and pull rod 55 is four and is uniformly distributed in the surrounding of seepage flow cylinder 54；Lateral porous disc 57 is equipped with
Multiple vertical permeable holes (do not show in figure but be easy to understand), porous disc 57 are placed on pedestal 59 and are located in seepage flow cylinder 54, thoroughly
Water plate 57 is preferably steel plate, and the diameter of the permeable hole is 4-6mm, preferably 5mm, and multiple permeable holes are equidistantly covered with permeable
Plate 57 and its spacing are 3-8mm, preferably 5mm；The middle part of upper cover 51 is equipped in vertical through holes and the vertical through holes and is equipped with gas
Source connector 50, gas source connector 50 are connect with the gas outlet of pneumatic shuttle 3, and pedestal 59 is equipped with water transport channel 58 and the water transport channel 58
Inner end communicated with seepage flow cylinder 54, the outer end of the water transport channel 58 is equipped with water source connector 60, water source connector 60 and hydraulic devices 2
Water outlet connection, 58 preferred structure of water transport channel is as follows: water transport channel 58 includes one or more being set to 59 upper surface of pedestal
Annular groove and 8 strip through-holes, 8 strip through-holes are axial uniformly point along two of pedestal 59 orthogonal plate faces respectively
Cloth, the annular groove are communicated with the inner end of the strip through-hole, and the outer end of each strip through-hole is mounted on one
Water source connector 60；The middle and lower sections of the inner wall of seepage flow cylinder 54 are equipped with multiple vertically spaced higher high drag rings of frictional force
56, high drag ring 56 is the cutting ring of the frosted ring that polishing is coarse sand surface or indent, and the axial width of high drag ring 56 is 6-
10mm, preferably 8mm, the spacing between two neighboring high drag ring 56 are 8-12mm, preferably 10mm, the high drag ring 56 of the top
Height on seepage flow cylinder 54 is the 50-60% of 54 height of seepage flow cylinder, preferably 54%；The opposite sides side wall of seepage flow cylinder 54 is distinguished
It (is not marked in figure equipped with multiple vertically spaced lateral spare holes for measuring hydraulic pressure or pressing into seepage flow cylinder 54
Note), the spare hole interior installing hole plug 61；Seepage flow cylinder 54 is preferably lucite cylinder.Illustrate: pneumatic shuttle 3, water in Fig. 1
Pressure device 2 and console 1 are simple structure schematic diagram, do not represent actual product shape and construction completely.
As shown in Figure 1, Figure 2 and Figure 3, in application, seepage apparatus 5 is mounted in mounting seat 4, lid is not installed first
51, a synusia stone is laid on porous disc 57 by the upper end opening of seepage flow cylinder 54 to prevent the fine grained in the test soil body from falling down
Block the water transport channel 58 on pedestal 59, ragstone layer thickness 45mm；Then will test the soil body be filled in seepage flow cylinder 54 under
Section forms soil body fill area, and as needed, the thickness of soil body fill area is respectively 350mm in the seepage flow cylinder 54 of different-diameter
~500mm is differed, it is ensured that soil layer is completely in seepage flow wall effect upgrading area；Then, hydraulic devices 2 are opened by console 1,
High pressure water is injected into seepage flow cylinder 54 from bottom to top by water transport channel 58, high pressure water is by equally distributed more on porous disc 57
The laggard soil body fill area infiltrated in flow cartridge 54 of a permeable hole simulates actual formation pore water pressure；Again from the upper of seepage flow cylinder 54
End opening, which is added, shifts to an earlier date configured mud, and in soil body fill area mud area formed above, the thickness in mud area is in different-diameter
It is respectively that 250mm~500mm is differed in seepage flow cylinder 54；Then upper cover 51 is installed, pneumatic shuttle 3 is opened by console 1, is led to
It crosses gas source connector 50 and is filled with high pressure gas into seepage flow cylinder 54, press to mud area, make the water of mud pressure Yu seepage flow cylinder bottom
There are pressure difference and mud pressure is greater than the hydraulic pressure of seepage flow cylinder bottom between pressure, so that mud is permeated to soil body fill area, formed
Mud film；The pressure of spare hole measurement mud film two sides by observing or by seepage flow cylinder 54 obtains test result, completes test.
During the test, according to actual needs, the pressure that pneumatic shuttle 3 and hydraulic devices 2 can be adjusted by console 1, can also
To apply different pressures from two sides different location by the spare hole of seepage flow cylinder 54, thus more differences during construction simulation
Operating condition completes more test functions and more preferable test effect.
Above-described embodiment is presently preferred embodiments of the present invention, is not a limitation on the technical scheme of the present invention, as long as
Without the technical solution that creative work can be realized on the basis of the above embodiments, it is regarded as falling into the invention patent
Rights protection scope in.
Claims (10)
1. it is a kind of for slurry shield mud film formed and seepage failure test experimental rig, including seepage apparatus, pneumatic shuttle,
Hydraulic devices and console, the pneumatic shuttle and the hydraulic devices are the seepage flow under the control of the console respectively
Device provides high-pressure air source and high-pressure water, it is characterised in that: the seepage apparatus includes seepage flow cylinder, upper cover, pedestal, porous disc
And pull rod, the upper and lower ends of the vertical seepage flow cylinder are open, the lateral upper cover and the lateral pedestal are pacified respectively
Upper and lower ends loaded on the seepage flow cylinder, it is lateral by vertical pull rod connection between the upper cover and the pedestal
The porous disc is equipped with multiple vertical permeable holes, and the porous disc is placed on the pedestal and is located in the seepage flow cylinder,
The middle part of the upper cover, which is equipped in vertical through holes and the vertical through holes, is equipped with gas source connector, the gas source connector and the air pressure
The gas outlet of device connects, and the pedestal is equipped with water transport channel and the inner end of the water transport channel is communicated with the seepage flow cylinder, this is defeated
The outer end of aquaporin is equipped with water source connector, and the water source connector is connect with the water outlet of the hydraulic devices.
2. the experimental rig according to claim 1 formed for slurry shield mud film and seepage failure is tested, feature
Be: the middle and lower sections of the inner wall of the seepage flow cylinder are equipped with multiple vertically spaced higher high drag rings of frictional force, institute
State the cutting ring that high drag ring is the frosted ring that polishing is coarse sand surface or indent.
3. the experimental rig according to claim 2 formed for slurry shield mud film and seepage failure is tested, feature
Be: the axial width of the high drag ring is 6-10mm, and the spacing between the two neighboring high drag ring is 8-12mm；Most
Height of the high drag ring of upper end on the seepage flow cylinder is the 50-60% of the seepage flow cylinder height.
4. the experimental rig according to claim 1,2 or 3 formed for slurry shield mud film and seepage failure is tested,
Be characterized in that: the opposite sides side wall of the seepage flow cylinder be respectively equipped with it is multiple vertically it is spaced for measure hydraulic pressure or to
The lateral spare hole to press in the seepage flow cylinder, the spare hole interior installing hole plug.
5. the experimental rig according to claim 1,2 or 3 formed for slurry shield mud film and seepage failure is tested,
Be characterized in that: the seepage flow cylinder is lucite cylinder.
6. the experimental rig according to claim 1 formed for slurry shield mud film and seepage failure is tested, feature
It is: between the upper cover and the upper end of the seepage flow cylinder, is equipped with anti-watertight between the pedestal and the lower end of the seepage flow cylinder
Seal.
7. the experimental rig formed for slurry shield mud film and seepage failure is tested according to claim 1 or 6, special
Sign is: the water transport channel on the pedestal includes one or more annular grooves for being set to the base upper surface and multiple
Shape through-hole, the annular groove are communicated with the inner end of the strip through-hole, and the outer end of each strip through-hole is mounted on
One water source connector.
8. the experimental rig according to claim 7 formed for slurry shield mud film and seepage failure is tested, feature
Be: the strip through-hole is 8 and is axially uniformly distributed along two orthogonal plate faces of the pedestal respectively.
9. the experimental rig according to claim 1 formed for slurry shield mud film and seepage failure is tested, feature
Be: the both ends of the pull rod be equipped with screw thread, the both ends of the pull rod be each passed through the upper cover quadrangle through-hole and the bottom
The through-hole of seat quadrangle is simultaneously secured with nuts, and the pull rod is four and is uniformly distributed in the surrounding of the seepage flow cylinder.
10. the experimental rig according to claim 1 formed for slurry shield mud film and seepage failure is tested, feature
Be: the porous disc is steel plate, and the diameter of the permeable hole is 4-6mm, and multiple permeable holes are equidistantly covered with described
Water plate and its spacing are 3-8mm.
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| CN201910427078.4A CN110208485A (en) | 2019-05-22 | 2019-05-22 | A kind of experimental rig formed for slurry shield mud film and seepage failure is tested |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114706322A (en) * | 2022-03-30 | 2022-07-05 | 西南交通大学 | Automatic control simulation system for attitude of shield machine |
| CN116183460A (en) * | 2022-12-21 | 2023-05-30 | 中山大学 | Roadbed filler permeability testing device and method |
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