CN110031369A - The underwater slurry shield mud film of bad ground forms simulator and analogy method - Google Patents
The underwater slurry shield mud film of bad ground forms simulator and analogy method Download PDFInfo
- Publication number
- CN110031369A CN110031369A CN201910427364.0A CN201910427364A CN110031369A CN 110031369 A CN110031369 A CN 110031369A CN 201910427364 A CN201910427364 A CN 201910427364A CN 110031369 A CN110031369 A CN 110031369A
- Authority
- CN
- China
- Prior art keywords
- mud
- water
- water tank
- storehouse
- shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 120
- 239000002689 soil Substances 0.000 claims abstract description 39
- 239000011148 porous material Substances 0.000 claims abstract description 25
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000011068 loading method Methods 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 239000012780 transparent material Substances 0.000 claims abstract description 5
- 241000083547 Columella Species 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 17
- 238000002474 experimental method Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 8
- 230000035699 permeability Effects 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 241001314948 Bursaria incana Species 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims 1
- 230000008595 infiltration Effects 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004088 simulation Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 8
- 230000037361 pathway Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Civil Engineering (AREA)
- Remote Sensing (AREA)
- Geochemistry & Mineralogy (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of underwater slurry shield mud films of bad ground to form simulator, including native case, semicircle shield shell and power loading system, native case and shield shell are made of transparent material, power loading system provides driving force to be mixed with the mud of fluorescent powder in muddy water storehouse, the excess pore water pressure monitoring holes for being connected to U-tube manometer are equipped in native case positioned at the front of cutterhead, is additionally provided on native case and provides the constant head simulator of constant head for it；The side wall that native case is equipped with shield shell is equipped with the graduated scale parallel with shield columella line, and the bottom of native case is equipped with the drainage hole that graduated cylinder is connected to by drainpipe, and drainpipe is equipped with drain valve.The device can control Different Strata condition, simulated mud, grouting pressure, grouting amount etc. and carry out the simulation of slurry shield grouting system, and the parameters such as soil body excess pore water pressure carry out mud film and form researching and analysing for effect in front of measurement mud drainage amount, mud film thickness and mud film.
Description
Technical field
The invention belongs to Shield Construction Technique fields more particularly to a kind of underwater slurry shield mud film of bad ground to form mould
Quasi- device and analogy method.
Background technique
With the continuous development that urban rail transit in China is built, there is the constructing tunnel of more and more complex conditions,
Constructing tunnel etc. under such as submerged tunnel, proximity existing tunnel and architecture construction, sandy gravel complex geological condition.Mud and water balance
Shield has many advantages, such as that construction safety, construction disturbance are small, applicability is wide, is widely used in the high hydraulic pressure of research and permeates complicated geological by force
Under the conditions of constructing tunnel.The core of slurry balance shield constructing tunnel is exactly to pass through slip casting to form one layer of cause in front of excavation face
Close mud film guarantees to excavate face stability so that mud pressure effectively to be acted on to the Water And Earth Pressures on excavation face balance stratum.
And the requirement that shield tunnel construction underwater for bad ground forms effect to mud film is higher, therefore how in complex geological condition
Simulated mud, grouting pressure and the grouting amount etc. that selection can form fine and close mud film are the problem of numerous engineering staffs pay close attention to.
And test is sampled to mud film by construction site to be related to working procedure more, it is uneconomical, it is unfavorable for going deep into carrying out mud
The research of effect can be formed to mud film under different geological conditions.
Patent 2015109384764 discloses a kind of experimental provision formed for simulating shield mud film, and the present invention is to mud
Each monitoring parameters changing rule of film forming process and slurry penetration situation and mud film properties qualitative parameter are summarized and analyzed, and are looked for
The principal element that the effective mud film of mud balanced shield is formed is influenced out, is stablized for mud Pressure Shield Tunnel face and is provided reliably
Experimental basis.
Patent 2017109040525 discloses a kind of slurry shield indoor simulation mole and its analogy method, this is specially
The applicable geological condition of benefit is extensive, comprehensive to the dynamic driving simulation of slurry shield, and the monitoring of multi-angle, test can be carried out to stratum
As a result technical support can be provided for the stabilization in digging in-situ face, boring parameter and simulated mud.
But the mud film that above-mentioned patent can not simulate underwater slurry shield tunnel forms effect, and observes the shape of mud film
It is needed after slip casting at situation, digs out experiment soil layer, taken out mud film, be more troublesome, be easily destroyed mud film, it cannot be real-time
Observe the permeation pathway of the formational situation and mud of mud film in experiment soil layer.Therefore how to design under a kind of complex geological condition
Indoor slurry shield tunnel slip casting simulation system is the engineering problem of urgent need to resolve.
Summary of the invention
The application aims to solve at least one of the technical problems existing in the prior art.For this purpose, an object of the present invention
It is to provide a kind of underwater slurry shield mud film formation simulator of bad ground.The device can control Different Strata condition,
Simulated mud, grouting pressure, grouting amount etc. carry out the simulation of slurry shield grouting system, measurement mud drainage amount, mud film thickness and
The parameters such as soil body excess pore water pressure carry out mud film and form researching and analysing for effect in front of mud film.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of underwater slurry shield mud film formation simulator of bad ground, including native case, semicircle shield shell and power add
Loading system, the shield shell are fixedly mounted on the inner sidewall of the native case, and the front end of the shield shell is equipped with cutterhead, and inside is formed with
Muddy water storehouse, the soil case and shield shell are made of transparent material, and the power loading system is to be mixed with fluorescence in the muddy water storehouse
The mud of powder provides driving force, and the excess pore water for being connected to U-tube manometer is equipped with positioned at the front of the cutterhead in the soil case
Pressure monitoring hole is additionally provided with and provides the constant head simulator of constant head for it on the soil case；The soil case is equipped with shield shell
Side wall is equipped with the graduated scale parallel with shield columella line, and the bottom of the soil case is equipped with the draining that graduated cylinder is connected to by drainpipe
Hole, the drainpipe are equipped with drain valve.
Further, the constant head simulator includes the first water tank, the second water tank and suction pump, first water tank
The lower section of second water tank is set, the water outlet of second water tank by water inlet pipe be connected to the native box top into
The mouth of a river, the side of second water tank are equipped with the overflow port for being connected to first water tank, and first water tank passes through suction pump
Water in it is pumped to and is equipped with inlet valve with second water tank, the water inlet pipe.
Further, the inner cavity of the shield shell is divided into the muddy water storehouse of front side and the air pressure storehouse of rear side by piston, described
The side wall in muddy water storehouse is equipped with injected hole, and the injected hole is connected to grouting equipment by Grouting Pipe.
Further, the side wall in the air pressure storehouse is equipped with air inlet, and the power loading system includes air compressor,
The air inlet is connected to the air compressor by air inlet pipe, and the air pressure storehouse is equipped with air gauge, in the air inlet pipe
Equipped with pressure regulator valve.
Further, the cutterhead is equipped with permeability hole and its inside is equipped with strainer.
Further, the shield shell is made of organic glass, and flat face utilizes epoxy gluing on native case.
Further, the stop valve that position locking is carried out to piston is additionally provided on the shield shell.
Further, sandy gravel filtering layer is equipped in native bottom portion.
Further, the native case is square.
A kind of analogy method that the underwater slurry shield mud film of bad ground is formed, using above-mentioned simulator, feature exists
In including the following steps:
Step 1: the drainage hole in native bottom portion is connected to graduated cylinder by drainpipe, and closes drain valve, cutterhead is installed
In the front end of shield shell, excess pore water pressure monitoring holes are connect with U-tube manometer, and close U-tube manometer valve；
Step 2: filling one layer of sandy gravel filtering layer in native bottom portion, is then charged into test soil layer and is compacted；It will be native by top plate
Constant head simulator is closed and be connected to case, closes the inlet valve on water inlet pipe.
Step 3: injecting water in the first water tank, opens suction pump, the water tank in the first water tank is pumped to the second water tank
Interior and overflow；Inlet valve is opened, the water flow in the second water tank is made to bury in case, until testing soil layer saturation in native case；Then it beats
Begin to rehearse water valve, adjusts the height of drainpipe and graduated cylinder, until just there is no water to flow into graduated cylinder for drainpipe；
Step 4: piston position is carried out by locking by stop valve, opens air compressor, is arranged using pressure regulator valve predetermined
The air pressure of size makes air pressure be transmitted to air pressure storehouse by air inlet, observes air gauge, guarantees that the air pressure of air pressure storehouse reaches required value；
Step 5: will prepare the mud completed and inject muddy water storehouse by mud tube and injected hole, will after muddy water storehouse is filled with
Injected hole seals, and then opens the U-tube manometer valve on excess pore water pressure monitoring holes；
Step 6: closing lock valve, records the time started with stopwatch, the air pressure in air pressure storehouse is made to be transmitted to muddy water by piston
In storehouse, the grouting pressure of predefined size is formed, mud is permeated by the permeability hole on cutterhead to cutterhead front experiment soil layer,
Mud film is formed in front of cutterhead；
Step 7: mud is permeated into experiment soil layer, records mud drainage amount using graduated cylinder at regular intervals, reads U
The pore water pressure of U-tube manometer each excess pore water pressure monitoring hole location, until mud drainage amount and U-tube manometer
When stable reading, show that fine and close mud film is formed, the thickness and mud of the mobile distance of piston and mud film are read by graduated scale
Seepage distance is starched, slurry consumption is calculated；Finally, take out mud film and mud film is put into baking oven measurement mud film moisture content, after,
By after test soil layer and sandy gravel filtering layer remove, so far a test is just fully finished.
The underwater slurry shield mud film of bad ground by adopting the above technical scheme forms simulator, passes through ordinary water connector analog
Head control in native case is saturated the test soil body in native case in stable height by device, will be prepared through grouting system
Mud injects muddy water storehouse by injected hole, closes injected hole and opens air compressor, is formed by pressure regulator valve in air pressure storehouse constant
Air pressure, open stop valve, by moveable piston, given mud pressure provided to the mud in muddy water storehouse, mud is logical
It crosses hole on cutterhead and enters experiment soil layer, form mud film in front of cutterhead, mud film thickness, shield front are recorded by measuring system
Soil body excess pore water pressure and mud drainage amount form effect for convenience of mud film is observed, and the present invention is by stratum and shield machine along right
Claim axis to cut, according to the fluorescent powder mixed in mud in advance, take wherein half studied, according to being mixed in mud in advance
Fluorescent powder, can realize the original of mud film forming process clearly in permeation pathway of the native case side observation mud in soil sample
Position observation.
In conclusion the present invention is that a kind of simple possible effectively studies the underwater slurry shield mud film of bad ground and forms mould
Quasi- device, can control Different Strata condition, edpth of tunnel, simulated mud, grouting pressure, grouting amount and cutterhead aperture opening ratio etc.
The research that slurry shield mud film forms effect is carried out, construction simulation scene complex geological condition, device selects energy through the invention
Simulated mud, grouting pressure and the grouting amount of fine and close mud film are formed on this stratum, the selection for construction site mud parameter provides
Foundation has stronger engineering adaptability and application prospect.Can also to different simulated muds, performance parameter and grouting parameter into
Row single factor test or orthogonal test analysis carry out mud property, grouting parameter etc. and form effect progress to slurry shield tunnel mud film
Qualitative and quantitative scientific research.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is side view of the invention；
Fig. 3 is power loading system schematic diagram；
Fig. 4 is native case and shield shell connection schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1 and Fig. 2, a kind of underwater slurry shield mud film of bad ground forms simulator, including native case 1, semicircle
Shape shield shell 7 and power loading system, shield shell 7 are fixedly mounted on the inner sidewall of native case 1, and the front end of shield shell 7 is equipped with cutterhead 10, knife
Disk 10 is equipped with permeability hole and its inside is equipped with strainer 29, and muddy water storehouse 9 is formed with inside shield shell 7, and power loading system is muddy water
The mud 30 that fluorescent powder is mixed in storehouse 9 provides driving force, is equipped in native case 1 positioned at the front of cutterhead 10 and is connected to U-tube manometer
21 excess pore water pressure monitoring holes 4 are additionally provided on native case 1 and provide the constant head simulator of constant head for it；Native case 1 is equipped with
The side wall of shield shell 7 is equipped with the graduated scale 13 parallel with 7 axis of shield shell, and the bottom of native case 1, which is equipped with, passes through the drainpipe amount of being connected to
The drainage hole 2 of cylinder, drainpipe are equipped with drain valve 19, and native case 1 and semicircle shield shell 7 are all made of transparent material production, so as to
Mud film forming process is observed with facilitating, transparent material can choose organic glass or plastics etc..
Referring to Fig. 1, constant head simulator includes the first water tank 15, the second water tank 16 and suction pump 17, the first water tank 15
The lower section of second water tank 16 is set, the water outlet of the second water tank 16 is connected to the water inlet 3 at native 1 top of case by water inlet pipe,
The side of second water tank 16 is equipped with the overflow port for being connected to the first water tank 15, and the first water tank 15 passes through suction pump 17 for the water in it
It is pumped to and is equipped with inlet valve 18 with the second water tank 16, water inlet pipe.
Referring to Fig. 1 and Fig. 3, the inner cavity of shield shell 7 is divided into the muddy water storehouse 9 of front side and the air pressure storehouse 8 of rear side by piston 28,
The stop valve 12 that position locking is carried out to piston 28 is additionally provided on shield shell 7.The side wall in muddy water storehouse 9 is equipped with injected hole 5, injected hole
5 are connected to grouting equipment by Grouting Pipe 14, and the side wall in air pressure storehouse 8 is equipped with air inlet 6, and power loading system includes air pressure
Contracting machine 25, air inlet 6 are connected to air compressor 25 by air inlet pipe 27, and air pressure storehouse 8 is equipped with air gauge 11, passes through air gauge
Air pressure size in 11 pairs of air pressure storehouses 8 measures, and air inlet pipe 27 is equipped with pressure regulator valve 26, to adjust charge flow rate.
By stratum and shield machine, vertically symmetry axis is cut the application, take wherein half studied, according in advance in mud
The fluorescent powder mixed in slurry clearly can observe forming process, the mud of the progress mud film with slip casting in native case side in real time
The permeation pathway of film thickness and mud in soil sample, without after slip casting, digging out experiment soil layer, take out mud film into
Row observation, may be implemented the home position observation of mud film, and the formational situation and mud that can observe mud film in real time are in experiment soil layer
Permeation pathway.
Referring to fig. 4, shield shell 7 is made of organic glass, and flat face utilizes epoxy gluing on native case 1, native case 1
For square box, square box is surrounded and is formed by four blocks of side plates, top plate and bottom plate.
Excess pore water pressure monitoring holes 4 are arranged in rows on the native case in front of cutterhead, every row's excess pore water pressure monitoring holes 4
Including four holes arranged perpendicular to shield columella line, spacing between row and row uses 100mm, is then bolted U-shaped
Pressure gauge, compared with burying pore pressure gauge in soil layer in the prior art, U-tube manometer is high with precision, response is fast, surveys
The advantages that discharge amplitude is wide, cheap, reliable and stable, and replacement soil layer does not need to remove measuring device every time, it is easy to operate
It is convenient, it is more suitable the underwater shield tunnel pore water pressure measurement of high hydraulic pressure；And pore pressure gauge cost is higher, volume compared with
Greatly, generally it is chiefly used in the measurement of engineering actual field, for experimental provision, each measuring point spacing is smaller, is not suitable for embedding pore water pressure
Power meter.
Referring to figures 1-4, the analogy method that a kind of underwater slurry shield mud film of bad ground is formed, is filled using above-mentioned simulation
It sets, which comprises the steps of:
Step 1: the drainage hole 2 of native 1 bottom of case is connected to graduated cylinder 20 by drainpipe, and closes drain valve 19, by knife
Disk 10 is mounted on the front end of shield shell 7, excess pore water pressure monitoring holes 4 is connect with U-tube manometer 21, and close U-tube manometer
Valve；
Step 2: filling one layer of sandy gravel filtering layer 22 in native 1 bottom of case, is then charged into test soil layer 23 and is compacted；Pass through top
The second water tank 16 is closed and be connected to native case 1 by plate, closes the inlet valve 18 on water inlet pipe.
Step 3: injecting water in the first water tank 15, opens suction pump 17, and the water tank in the first water tank 15 is pumped to the
Simultaneously overflow in two water tanks 16；Inlet valve 18 is opened, the water flow in the second water tank 16 is made to bury in case 1, until testing soil in native case 1
Layer saturation；Then drain valve 19 is opened, the height of drainpipe and graduated cylinder 20 is adjusted, until just there is no water influxs for drainpipe
In cylinder 20；
Step 4: 28 position of piston is carried out by locking by stop valve 12, air compressor 25 is opened, utilizes pressure regulator valve 26
The air pressure of predefined size is set, by air inlet 6, air pressure is made to be transmitted to air pressure storehouse 8, observes air gauge 11, guarantee 8 gas of air pressure storehouse
Pressure reaches required value；
Step 5: will prepare the mud 30 completed and injected in muddy water storehouse 9 by mud tube 14 and injected hole 5,9 quilt of muddy water storehouse
After filling, injected hole 5 is sealed, then opens the U-tube manometer valve on excess pore water pressure monitoring holes 4；
Step 6: closing lock valve 12, and piston 28 moves under gas pressure towards 10 direction of cutterhead, is opened with stopwatch record
Begin the time, be transmitted to the air pressure in air pressure storehouse 8 in muddy water storehouse 9 by piston, form the grouting pressure of predefined size, mud 30 is logical
Cross the permeability hole on cutterhead 10, to cutterhead 10 in front of experiment soil layer 23 permeate, in front of cutterhead 10 formed mud film 24；
Step 7: mud 30 is permeated into experiment soil layer 23, records mud drainage amount using graduated cylinder 20 at regular intervals,
The pore water pressure at each 4 position of excess pore water pressure monitoring holes of U-tube manometer 21 is read, until mud drainage amount and U-shaped
When the stable reading of pressure gauge 21, show the fine and close formation of mud film 24, the mobile distance of piston 28 is directly read by graduated scale
And the thickness and slurry penetration distance of mud film, slurry consumption is calculated using the mobile distance of piston 28；Finally, taking out mud film
24 and mud film is put into baking oven measurement mud film moisture content, after, by after test soil layer and sandy gravel filtering layer remove, so far one
A test is just fully finished.It is injected separately into the mud of configured different performance, repeats above-mentioned test procedure.
Above-described embodiment is only to clearly demonstrate examples made by the present invention, rather than the restriction to embodiment.For
For those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.Here without can not be also exhaustive to all embodiments.And the obvious variation or change thus amplified out
It is dynamic to be still in the protection scope of this invention.
Claims (10)
1. a kind of underwater slurry shield mud film of bad ground forms simulator, including native case, semicircle shield shell and power load
System, the shield shell are fixedly mounted on the inner sidewall of the native case, and the front end of the shield shell is equipped with cutterhead, and inside is formed with mud
Sump, the soil case and shield shell are made of transparent material, it is characterised in that: the power loading system is in the muddy water storehouse
The mud for being mixed with fluorescent powder provides driving force, is equipped in the soil case positioned at the front of the cutterhead and is connected to U-tube manometer
Excess pore water pressure monitoring holes are additionally provided with and provide the constant head simulator of constant head for it on the soil case；The soil case is set
There is the side wall of shield shell to be equipped with the graduated scale parallel with shield columella line, the bottom of the soil case, which is equipped with, passes through the drainpipe amount of being connected to
The drainage hole of cylinder, the drainpipe are equipped with drain valve.
2. simulator according to claim 1, it is characterised in that: the constant head simulator include the first water tank,
The lower section of second water tank is arranged in second water tank and suction pump, first water tank, and the water outlet of second water tank is logical
The water inlet that water inlet pipe is connected to the native box top is crossed, the side of second water tank, which is equipped with, is connected to first water tank
Water in it is pumped to by suction pump and is equipped with second water tank, the water inlet pipe by overflow port, first water tank
Inlet valve.
3. simulator according to claim 2, it is characterised in that: the inner cavity of the shield shell is divided into front side by piston
Muddy water storehouse and rear side air pressure storehouse, the side wall in the muddy water storehouse is equipped with injected hole, and the injected hole passes through Grouting Pipe connection
To grouting equipment.
4. simulator according to claim 3, it is characterised in that: the side wall in the air pressure storehouse is equipped with air inlet, institute
Stating power loading system includes air compressor, and the air inlet is connected to the air compressor, the gas by air inlet pipe
Storehouse is pressed to be equipped with air gauge, the air inlet pipe is equipped with pressure regulator valve.
5. simulator according to claim 4, it is characterised in that: the cutterhead is equipped with permeability hole and its inside is equipped with
Strainer.
6. simulator according to claim 5, it is characterised in that: the shield shell is made of organic glass, and straight
Face is using epoxy gluing on native case.
7. simulator according to claim 4, it is characterised in that: be additionally provided on the shield shell and carry out position lock to piston
Fixed stop valve.
8. simulator according to claim 4, it is characterised in that: be equipped with sandy gravel filtering layer in native bottom portion.
9. simulator according to claim 4, it is characterised in that: the soil case is square.
10. a kind of analogy method that the underwater slurry shield mud film of bad ground is formed, described in any item using claim 4-9
Simulator, which comprises the steps of:
Step 1: the drainage hole in native bottom portion is connected to graduated cylinder by drainpipe, and closes drain valve, cutterhead is mounted on shield
Excess pore water pressure monitoring holes connect with U-tube manometer, and close U-tube manometer valve by the front end of shell；
Step 2: filling one layer of sandy gravel filtering layer in native bottom portion, is then charged into test soil layer and is compacted；Native case is sealed by top plate
Constant head simulator is closed and be connected to, the inlet valve on water inlet pipe is closed.
Step 3: injecting water in the first water tank, opens suction pump, the water tank in the first water tank is pumped in the second water tank simultaneously
Overflow；Inlet valve is opened, the water flow in the second water tank is made to bury in case, until testing soil layer saturation in native case；Then the row of opening
Water valve adjusts the height of drainpipe and graduated cylinder, until just there is no water to flow into graduated cylinder for drainpipe；
Step 4: piston position is carried out by locking by stop valve, opens air compressor, predefined size is set using pressure regulator valve
Air pressure so that air pressure is transmitted to air pressure storehouse by air inlet, observe air gauge, guarantee that the air pressure of air pressure storehouse reaches required value；
Step 5: the mud completed will be prepared, muddy water storehouse is injected by mud tube and injected hole, after muddy water storehouse is filled with, by slip casting
Hole seals, and then opens the U-tube manometer valve on excess pore water pressure monitoring holes；
Step 6: closing lock valve, records the time started with stopwatch, the air pressure in air pressure storehouse is made to be transmitted to muddy water storehouse by piston
In, the grouting pressure of predefined size is formed, mud is by the permeability hole on cutterhead, to cutterhead front experiment soil layer infiltration, in knife
Mud film is formed in front of disk；
Step 7: mud is permeated into experiment soil layer, is recorded mud drainage amount using graduated cylinder at regular intervals, is read U-shaped pressure
The pore water pressure of each excess pore water pressure monitoring hole location of power meter, until the reading of mud drainage amount and U-tube manometer
When stablizing, show that fine and close mud film is formed, is seeped by thickness and mud that graduated scale reads the mobile distance of piston and mud film
Saturating distance, calculates slurry consumption；Finally, take out mud film and mud film is put into baking oven measurement mud film moisture content, after, it will try
Soil layer and sandy gravel filtering layer after testing are removed, and so far a test is just fully finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910427364.0A CN110031369A (en) | 2019-05-22 | 2019-05-22 | The underwater slurry shield mud film of bad ground forms simulator and analogy method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910427364.0A CN110031369A (en) | 2019-05-22 | 2019-05-22 | The underwater slurry shield mud film of bad ground forms simulator and analogy method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110031369A true CN110031369A (en) | 2019-07-19 |
Family
ID=67243001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910427364.0A Pending CN110031369A (en) | 2019-05-22 | 2019-05-22 | The underwater slurry shield mud film of bad ground forms simulator and analogy method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110031369A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456027A (en) * | 2019-08-22 | 2019-11-15 | 江苏建筑职业技术学院 | A kind of slurry shield knife cutting soil body generation mud membrane pilot unit contained |
| CN110631991A (en) * | 2019-10-11 | 2019-12-31 | 南京林业大学 | Test device for forming high-strength mud cake through wedging loading and adhesion force measuring method |
| CN110895233A (en) * | 2019-12-16 | 2020-03-20 | 西南交通大学 | Dynamic penetration film forming test device and measurement method for slurry balance shield slurry |
| CN111795917A (en) * | 2020-08-14 | 2020-10-20 | 盾构及掘进技术国家重点实验室 | Dynamic slurry permeability test device and method |
| CN113030277A (en) * | 2021-03-08 | 2021-06-25 | 广东工业大学 | System and method for testing permeability damage and grouting injectability of surrounding rock of water-rich sand layer tunnel |
| CN113310714A (en) * | 2021-03-19 | 2021-08-27 | 无锡地铁集团有限公司 | Visual test system for simulating rectangular pipe jacking construction |
| CN113420482A (en) * | 2021-06-24 | 2021-09-21 | 北京安捷工程咨询有限公司 | Segment load orthogonal numerical inversion method based on structural internal force monitoring value |
| CN113565515A (en) * | 2021-07-24 | 2021-10-29 | 郑州大学 | Device and method for testing pore water pressure in site during subway communication channel freezing method construction |
| CN113671150A (en) * | 2021-07-16 | 2021-11-19 | 长安大学 | Combined loess stratum shield tunnel construction full-stage test device capable of uniformly humidifying |
| CN114778808A (en) * | 2022-05-16 | 2022-07-22 | 山东国建工程集团有限公司 | Building block mud plumpness detection device |
| CN114814094A (en) * | 2022-04-13 | 2022-07-29 | 西安科技大学 | Experimental device and experimental method for visually simulating gas drilling and sealing |
| CN114813481A (en) * | 2022-04-07 | 2022-07-29 | 北京交通大学 | Testing device and method for dynamic film forming of slurry under cutting action of shield cutter head |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303775A1 (en) * | 1987-08-13 | 1989-02-22 | Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann | Method for making a tunnel by using a driving shield |
| CN203287296U (en) * | 2013-05-29 | 2013-11-13 | 浙江大学 | Simulation test device for slurry shield mud film forming process |
| CN103913289A (en) * | 2012-12-31 | 2014-07-09 | 同济大学 | Simulating system used for shield tunnel synchronous grouting test and test method thereof |
| CN105334142A (en) * | 2015-12-16 | 2016-02-17 | 北京交通大学 | Experiment device for simulating shield mud membrane formation |
| CN105717024A (en) * | 2016-02-19 | 2016-06-29 | 龙岩学院 | Device for testing performance of grouting and water plugging material for mine and application method of device |
| CN105866337A (en) * | 2016-04-21 | 2016-08-17 | 河海大学 | Device and method for testing slurry shield excavation surface mud film formation and mud film air tightness under high pressure |
| CN106768838A (en) * | 2016-12-08 | 2017-05-31 | 中铁十四局集团第二工程有限公司 | A kind of complex condition pulp-water boundary moving tracing observation device and method |
| CN107489426A (en) * | 2017-09-29 | 2017-12-19 | 中铁隧道局集团有限公司 | A kind of slurry shield lab simulation mole and its analogy method |
| CN108072749A (en) * | 2017-07-05 | 2018-05-25 | 同济大学 | A kind of tunneling shield excavates high-precision seepage flow simulation by tracing experimental rig |
| CN207406343U (en) * | 2017-09-29 | 2018-05-25 | 中铁隧道局集团有限公司 | A kind of slurry shield indoor simulation mole |
| CN108444888A (en) * | 2018-04-17 | 2018-08-24 | 中国矿业大学 | A kind of fractured coal and rock osmotic grouting visual test device and its test method |
| CN109667589A (en) * | 2019-02-01 | 2019-04-23 | 上海隧道工程有限公司 | Ultra-deep stratum shield synchronization slip casting total cross-section visual Simulation experimental rig and method |
| CN109752248A (en) * | 2019-01-22 | 2019-05-14 | 北京交通大学 | The visual Simulation experimental rig and method of soil body muddy water splitting stretching process |
-
2019
- 2019-05-22 CN CN201910427364.0A patent/CN110031369A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303775A1 (en) * | 1987-08-13 | 1989-02-22 | Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann | Method for making a tunnel by using a driving shield |
| CN103913289A (en) * | 2012-12-31 | 2014-07-09 | 同济大学 | Simulating system used for shield tunnel synchronous grouting test and test method thereof |
| CN203287296U (en) * | 2013-05-29 | 2013-11-13 | 浙江大学 | Simulation test device for slurry shield mud film forming process |
| CN105334142A (en) * | 2015-12-16 | 2016-02-17 | 北京交通大学 | Experiment device for simulating shield mud membrane formation |
| CN105717024A (en) * | 2016-02-19 | 2016-06-29 | 龙岩学院 | Device for testing performance of grouting and water plugging material for mine and application method of device |
| CN105866337A (en) * | 2016-04-21 | 2016-08-17 | 河海大学 | Device and method for testing slurry shield excavation surface mud film formation and mud film air tightness under high pressure |
| CN106768838A (en) * | 2016-12-08 | 2017-05-31 | 中铁十四局集团第二工程有限公司 | A kind of complex condition pulp-water boundary moving tracing observation device and method |
| CN108072749A (en) * | 2017-07-05 | 2018-05-25 | 同济大学 | A kind of tunneling shield excavates high-precision seepage flow simulation by tracing experimental rig |
| CN107489426A (en) * | 2017-09-29 | 2017-12-19 | 中铁隧道局集团有限公司 | A kind of slurry shield lab simulation mole and its analogy method |
| CN207406343U (en) * | 2017-09-29 | 2018-05-25 | 中铁隧道局集团有限公司 | A kind of slurry shield indoor simulation mole |
| CN108444888A (en) * | 2018-04-17 | 2018-08-24 | 中国矿业大学 | A kind of fractured coal and rock osmotic grouting visual test device and its test method |
| CN109752248A (en) * | 2019-01-22 | 2019-05-14 | 北京交通大学 | The visual Simulation experimental rig and method of soil body muddy water splitting stretching process |
| CN109667589A (en) * | 2019-02-01 | 2019-04-23 | 上海隧道工程有限公司 | Ultra-deep stratum shield synchronization slip casting total cross-section visual Simulation experimental rig and method |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456027B (en) * | 2019-08-22 | 2021-12-31 | 江苏建筑职业技术学院 | Test device for producing mud film by cutting soil body with cutter head of mud shield |
| CN110456027A (en) * | 2019-08-22 | 2019-11-15 | 江苏建筑职业技术学院 | A kind of slurry shield knife cutting soil body generation mud membrane pilot unit contained |
| CN110631991A (en) * | 2019-10-11 | 2019-12-31 | 南京林业大学 | Test device for forming high-strength mud cake through wedging loading and adhesion force measuring method |
| CN110631991B (en) * | 2019-10-11 | 2024-06-04 | 南京林业大学 | Testing device for forming high-strength mud cake by wedging type loading and adhesion measuring method |
| CN110895233A (en) * | 2019-12-16 | 2020-03-20 | 西南交通大学 | Dynamic penetration film forming test device and measurement method for slurry balance shield slurry |
| CN111795917A (en) * | 2020-08-14 | 2020-10-20 | 盾构及掘进技术国家重点实验室 | Dynamic slurry permeability test device and method |
| CN113030277A (en) * | 2021-03-08 | 2021-06-25 | 广东工业大学 | System and method for testing permeability damage and grouting injectability of surrounding rock of water-rich sand layer tunnel |
| CN113310714A (en) * | 2021-03-19 | 2021-08-27 | 无锡地铁集团有限公司 | Visual test system for simulating rectangular pipe jacking construction |
| CN113420482A (en) * | 2021-06-24 | 2021-09-21 | 北京安捷工程咨询有限公司 | Segment load orthogonal numerical inversion method based on structural internal force monitoring value |
| CN113671150A (en) * | 2021-07-16 | 2021-11-19 | 长安大学 | Combined loess stratum shield tunnel construction full-stage test device capable of uniformly humidifying |
| CN113671150B (en) * | 2021-07-16 | 2023-06-20 | 长安大学 | Combined loess stratum shield tunnel construction full-stage test device capable of uniformly humidifying |
| CN113565515B (en) * | 2021-07-24 | 2024-03-15 | 郑州大学 | Device and method for testing pore water pressure in freezing method construction of subway communication channel on site |
| CN113565515A (en) * | 2021-07-24 | 2021-10-29 | 郑州大学 | Device and method for testing pore water pressure in site during subway communication channel freezing method construction |
| CN114813481A (en) * | 2022-04-07 | 2022-07-29 | 北京交通大学 | Testing device and method for dynamic film forming of slurry under cutting action of shield cutter head |
| CN114813481B (en) * | 2022-04-07 | 2024-10-01 | 北京交通大学 | Test device and method for dynamic film formation of slurry under cutting action of shield cutter head |
| CN114814094A (en) * | 2022-04-13 | 2022-07-29 | 西安科技大学 | Experimental device and experimental method for visually simulating gas drilling and sealing |
| CN114814094B (en) * | 2022-04-13 | 2024-03-01 | 西安科技大学 | Visual experiment device and experiment method for simulating gas drilling and hole sealing |
| CN114778808A (en) * | 2022-05-16 | 2022-07-22 | 山东国建工程集团有限公司 | Building block mud plumpness detection device |
| CN114778808B (en) * | 2022-05-16 | 2024-04-02 | 山东国建工程集团有限公司 | Building block mud plumpness detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110031369A (en) | The underwater slurry shield mud film of bad ground forms simulator and analogy method | |
| CN108195723B (en) | Permeation grouting test system and method for reinforcing loose gravel soil | |
| CN105092798B (en) | Recharge system and test method in one kind simulation varying head permeable ground diving stratum room | |
| CN105334142B (en) | A kind of experimental provision formed for simulating shield mud film | |
| CN204125898U (en) | The experimental rig of Dam Foundation Seepage under a kind of failure under earthquake action | |
| CN109519156A (en) | A kind of side water sand rock gas reservoir water drive section model Seepage Experiment method | |
| CN113030277B (en) | System and method for testing permeability damage and grouting injectability of surrounding rock of water-rich sand layer tunnel | |
| CN111175477B (en) | Saturated fine sand layer induced grouting experimental model and experimental method | |
| CN103868569A (en) | Device and setting method for measuring underground water level of vacuum drainage prepressing sealing membrane | |
| CN105369812B (en) | The pressure water head of foundation ditch pumping with constant rate determines method under suspension type water-stop curtain | |
| CN207760898U (en) | Foundation pit dynamic precipitation indoor model test device under the conditions of multi-aquifer | |
| CN106769747A (en) | Experimental rig and its test method that soil body inflation resistance is oozed | |
| CN204479574U (en) | Landslide, in-situ ionic rare earth leaching ore deposit pilot system | |
| CN105352867A (en) | Simulation multi-gap assembled medium tunnel seepage test method | |
| CN112229981A (en) | Device for simulating comprehensive influence of foundation pit excavation and multi-gradient precipitation on tunnel | |
| CN204925080U (en) | Simulation becomes indoor system of recharging in flood peak permeable ground dive stratum | |
| CN109853646A (en) | Indoor simulation test device and method for confined water precipitation of foundation pit | |
| CN110161210A (en) | A kind of draw water Returning test device and its test method for simulating leakage-releasing water | |
| CN112302059A (en) | Device for simulating foundation pit dewatering plane seepage and retaining wall deformation and using method | |
| CN102419298A (en) | Seepage device for slurry of coarse grained soil | |
| CN214749630U (en) | Experimental model device for permeation destruction and grouting injectability of water-rich sand layer tunnel surrounding rock | |
| CN106768153B (en) | A kind of slurry consolidation cubical contraction test device and method of testing | |
| CN212904866U (en) | Vertical shaft combined vacuum precipitation test device containing closed gas-bag saturated soil body | |
| CN205262912U (en) | Experimental device for it constructs sludge -biofilm formation to be used for simulating shield | |
| CN113605933A (en) | Grouting reinforcement method for underground excavation channel of close-distance underpass subway station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |