CN206038476U - Modified slurry shield mud infiltration film forming analogue test device - Google Patents
Modified slurry shield mud infiltration film forming analogue test device Download PDFInfo
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- CN206038476U CN206038476U CN201621048579.XU CN201621048579U CN206038476U CN 206038476 U CN206038476 U CN 206038476U CN 201621048579 U CN201621048579 U CN 201621048579U CN 206038476 U CN206038476 U CN 206038476U
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- film forming
- test cylinder
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- cylinder
- test device
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Abstract
The utility model discloses a modified slurry shield mud infiltration film forming analogue test device, including test cylinder, permeable stone, baffle, biography power piston and gas outlet, the permeable stone is placed bottom in the test cylinder, baffle longitudinal sliding motion connects on the permeable stone, will test cylinder separates the part that is two bilateral symmetry, it is in to pass power piston sliding connection in the test cylinder, the gas outlet sets up on the test cylinder lateral wall, each part test cylinder is respectively including setting up the delivery port at the bobbin base to and tubule and the overflow mouth of setting at section of thick bamboo lateral wall.
Description
Technical field
The utility model is related to a kind of improved slurry shield slurry and permeates film forming simulation test device, belongs to measurement test
Equipment technical field.
Background technology
Mud water pressurization equilibration shield is more and more used for city underground and highway tunnel because of its good ground adaptability
Road is built.During shield-tunneling construction, often because excavation face unstability causes engineering accident, the such as soil body to cave in or surface uplift.Mud
Slurry penetrates into stratum and forms mud film, and mud pressure is acted on soil skeleton by mud film, so mud film quality is to maintain excavation face steady
Fixed principal element.The adaptability of mud film forming process and mud to Different Strata is specified, is to realize excavation face stability contorting
With the key for preventing excavation face unstability accident.
At present in Practical Project driving, the situation of compound stratum is often run into, and existing conventional mud film forms mould
Plan experimental rig be single soil layer experimental provision, can not analog composite stratum situation, it is therefore desirable to by conventional model
Experimental rig carries out certain improvement, so as to reach following test requirements document and target：Specify mud film of the mud in different soil
Quality of forming film difference, including film forming speed, film forming thickness, into film type, and in two soil layers under the effect of different mud pressures
The difference of slurry infiltration speed.
Utility model content
For the problems referred to above that prior art is present, the purpose of this utility model is to provide a kind of improved slurry shield mud
Slurry infiltration film forming simulation test device, obtains the difference of mud film quality of forming film, mud in compound stratum and Different Strata is fitted
Answer sex differernce.
For achieving the above object, the technical solution adopted in the utility model is as follows：
A kind of improved slurry shield slurry permeates film forming simulation test device, including test cylinder, permeable stone, dividing plate, biography
Power piston and gas outlet, the permeable stone are placed on the bottom in the test cylinder, and the dividing plate longitudinal sliding motion is connected to institute
State on permeable stone, the test cylinder is divided into into two symmetrical parts, the force-transmitting piston is slidably connected at the examination
Test in cylinder, the gas outlet is arranged on the wall of the test cylinder side；The test cylinder of each section includes being arranged on cylinder respectively
The delivery port at bottom, and it is arranged on tin tubule of side wall and an overfall.
As a kind of embodiment, in positioned at the relative Tong Di centers in position of two delivery ports of the test cylinder bottom being in
The heart is symmetrical, and respectively close to the marginal position of respective side.
Used as a kind of embodiment, the side surrounding of the force-transmitting piston is provided with sealing strip.
Used as a kind of embodiment, the slurry shield slurry infiltration film forming simulation test device also includes bearing, described
Bearing is connected to the bottom of the test cylinder, it is to avoid the delivery port contacts ground.
Used as a kind of embodiment, the bearing is by the three pieces of plate groups in 120 ° of angles each other for being connected in a bottom
Into.
As a kind of embodiment, on the test cylinder and the tubule, graduation mark is provided with.
Used as a kind of embodiment, the maximum allowable stress size of the test cylinder is not less than limit otch pressure value
0.35MPa。
Compared to prior art, Advantageous Effects of the present utility model are：
The slurry shield slurry infiltration film forming simulation test device provided using the utility model, in identical simulated mud
Under the conditions of tested, the otherness of different soil mud film film forming can be investigated, by once test can obtain Different Strata
Film forming speed, film forming thickness, into the difference of film type, and it is poor to measure the different soil mud membrane filtration water yield under identical mud pressure
Not, test number (TN) is greatly reduced, the conclusion for obtaining is more directly perceived, is had compared with the past common single soil layer experimental provision
Significant superiority.
Description of the drawings
Fig. 1 is the section that a kind of improved slurry shield slurry that the utility model is provided permeates film forming simulation test device
Figure；
Fig. 2 is the solid that a kind of improved slurry shield slurry that the utility model is provided permeates film forming simulation test device
Figure；
Fig. 3 is the side-looking that a kind of improved slurry shield slurry that the utility model is provided permeates film forming simulation test device
Figure；
In figure, label is schematically as follows：1- test cylinders；2- permeable stones；3- dividing plates；4- force-transmitting pistons；5- delivery ports；6- tubules；
7- overfalls；8- gas outlets；9- bearings.
Specific embodiment
The technical solution of the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, the slurry shield slurry infiltration film forming simulation test device that the utility model is provided includes examination
Test cylinder 1, permeable stone 2, dividing plate 3, force-transmitting piston 4 and gas outlet 8.
Test cylinder 1 is cylinder, is made using lucite, for holding compound soil sample layer and test mud, with one
Fixed bearing capacity, can guarantee that test is smoothly completed under an increased pressure, and maximum allowable stress size should be cut not less than the limit
Mouth pressure value 0.35MPa.The cylinder bottom of test cylinder 1 offers two delivery ports 5, and permeable stone 2 is placed on the bottom in test cylinder 1.
3 longitudinal sliding motion of dividing plate is connected on permeable stone 2, and test cylinder 1 is divided into two symmetrical parts, for placing two respectively
Different soil samples are planted, soil sample is placed above mud, and force-transmitting piston 4 is slidably connected in test cylinder 1, is pressed on mud, by power transmission
Piston 4 is pressurizeed step by step.Gas outlet 8 carries valve, is arranged on the side wall of test cylinder 1, for discharging test in pressurization
Gas in cylinder 1.
The test cylinder 1 of each section includes the delivery port 5 for being arranged on a bottom respectively, and is arranged on a tubule for side wall 6
With overfall 7.The position of two delivery ports 5 is centrosymmetric with respect to Tong Di centers, and respectively close to the margin location of respective side
Put so that the measured value of two kinds of soil sample layer drainage amounts is more accurate.Permeable stone 2 can ensure that lower section delivery port 5 is unlikely to native
Particle is blocked.In the present embodiment, the tubule 6 of 1 side wall of test cylinder totally four, each section two, on test cylinder 1 and tubule 6
Graduation mark is provided with, can reflect the pore water pressure size inside any time soil sample in process of the test in real time, cylinder and thin
Scale, the convenient change for measuring mud film thickness and head height are set on pipe.It is every that two overfalls 7 are opened in test cylinder 1 respectively
On the side wall of a part.
The bottom of test cylinder 1 is additionally provided with bearing 9, and bearing 9 will have certain height, it is ensured that landing when delivery port 5 not
As for contact ground, in the present embodiment, bearing 9 is made up of the three blocks of plates in 120 ° of angles each other for being connected in a bottom.
Permeate the air-tightness of film forming simulation test device simultaneously in order to increase slurry shield slurry, the side surrounding of force-transmitting piston 4 is arranged
There is sealing strip.
Workflow of the present utility model is as follows：
The bearing for first test cylinder device being put in certain altitude and two delivery port of bottom being completely exposed before test
On, for the collecting work of the drainage amount in experimentation.
Permeable stone is positioned over a bottom at first, and filter paper is arranged in gap and tubule mouth prevents soil particle from blocking；Will be every
Plate is vertically placed on permeable stone and ensures that two delivery port of bottom is substantially symmetric relative to dividing plate；
Soil sample A is placed in dividing plate side, and compacting filling of vibrating is to test height, then soil sample B, side is added in dividing plate opposite side
Slowly extract dividing plate out and ensure that A and B is fully contacted and equally vibrates compacting until soil sample B height also reaches the test specified in filling side
Height is substantially flush with A；
Instrument drainage is used, slowly toward water filling saturation stratum in device；Configuration mud, stands aquation after stirring；Treat thin
The water level of pipe is risen to after being flushed with priming charge position, then waits two hours saturations, device for opening overfall and delivery port, will dress
Put middle moisture to discharge, after draining only, close overfall and delivery port, water level is flushed with ground layer height in tubule；
After ready mud stirring uniform, slowly poured on test stratum, until assigned scale using drainage tool；
Gas outlet is opened, force-transmitting piston is placed into into mud surface full contact, is discharged in test cylinder and gas is closed gas outlet；
Put graduated cylinder under two delivery ports respectively well, open delivery port, apply constant weight step by step at the top of force-transmitting piston
Counterweight, carry out timing, simultaneously record once two graduated cylinder drainage values per 2 minutes；In noting both sides tubule in process of the test
Water level rise situation, record begin to ramp up time and final rising value；
Represent that mud film has been formed after the water yield in amount graduated cylinder increases value stabilization；Close after both sides mud film is all formed
All valves, take out counterweight, force-transmitting piston and the mud on mud film top, and by the mud film formed in two kinds of soil sample layers, stripping and slicing takes respectively
Go out, observe the difference that mud film forms form, difference in thickness；
Then after testing, soil layer is removed, and test is completed, and after cleaning up device, can carry out next stage applied voltage test.
The utility model is tested under the conditions of identical simulated mud, can investigate the difference of different soil mud film film forming
The opposite sex, by once test can obtain Different Strata film forming speed, film forming thickness, into the difference of film type, and measure phase
With different soil mud membrane filtration water yield difference under mud pressure, greatly reduce test number (TN), the conclusion for obtaining is more directly perceived, with
Compare with significant superiority toward common single soil layer experimental provision.
Finally be necessary it is pointed out here that be：The foregoing is only the utility model preferably specific embodiment, but this
The protection domain of utility model is not limited thereto, and any those familiar with the art is disclosed in the utility model
In technical scope, the change or replacement that can be readily occurred in should all be covered within protection domain of the present utility model.
Claims (6)
1. a kind of improved slurry shield slurry permeates film forming simulation test device, it is characterised in that：Including test cylinder, permeable
Stone, dividing plate, force-transmitting piston and gas outlet, the permeable stone are placed on the bottom in the test cylinder, and the dividing plate is longitudinally sliding
It is dynamic to be connected on the permeable stone, the test cylinder is divided into into two symmetrical parts, the force-transmitting piston slides and connects
It is connected in the test cylinder, the gas outlet is arranged on the wall of the test cylinder side；The test cylinder of each section is wrapped respectively
The delivery port for being arranged on a bottom is included, and is arranged on tin tubule of side wall and an overfall.
2. slurry shield slurry according to claim 1 permeates film forming simulation test device, it is characterised in that：Positioned at described
The position of two delivery ports of test cylinder bottom is centrosymmetric with respect to Tong Di centers, and respectively close to the margin location of respective side
Put.
3. slurry shield slurry according to claim 1 permeates film forming simulation test device, it is characterised in that：The power transmission
The side surrounding of piston is provided with sealing strip.
4. slurry shield slurry according to claim 1 permeates film forming simulation test device, it is characterised in that：The muddy water
Shield slurry infiltration film forming simulation test device also includes bearing, and the bearing is connected to the bottom of the test cylinder.
5. slurry shield slurry according to claim 4 permeates film forming simulation test device, it is characterised in that：The bearing
It is made up of the three blocks of plates in 120 ° of angles each other for being connected in a bottom.
6. slurry shield slurry according to claim 1 permeates film forming simulation test device, it is characterised in that：The test
Graduation mark is provided with cylinder and the tubule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048579.XU CN206038476U (en) | 2016-09-08 | 2016-09-08 | Modified slurry shield mud infiltration film forming analogue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048579.XU CN206038476U (en) | 2016-09-08 | 2016-09-08 | Modified slurry shield mud infiltration film forming analogue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038476U true CN206038476U (en) | 2017-03-22 |
Family
ID=58300064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621048579.XU Expired - Fee Related CN206038476U (en) | 2016-09-08 | 2016-09-08 | Modified slurry shield mud infiltration film forming analogue test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206038476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932499A (en) * | 2019-03-21 | 2019-06-25 | 上海工程技术大学 | A kind of experimental rig and method for studying mud film support action |
| CN111122338A (en) * | 2020-01-07 | 2020-05-08 | 河海大学 | Mud shield mud splitting mud escape test device |
-
2016
- 2016-09-08 CN CN201621048579.XU patent/CN206038476U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932499A (en) * | 2019-03-21 | 2019-06-25 | 上海工程技术大学 | A kind of experimental rig and method for studying mud film support action |
| CN109932499B (en) * | 2019-03-21 | 2024-04-26 | 上海工程技术大学 | Test device and method for researching mud film supporting effect |
| CN111122338A (en) * | 2020-01-07 | 2020-05-08 | 河海大学 | Mud shield mud splitting mud escape test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20200908 |