CN208899548U - A kind of simulation underground engineering moves the laboratory testing rig of underwater slip casting closure - Google Patents
A kind of simulation underground engineering moves the laboratory testing rig of underwater slip casting closure Download PDFInfo
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- CN208899548U CN208899548U CN201821570579.5U CN201821570579U CN208899548U CN 208899548 U CN208899548 U CN 208899548U CN 201821570579 U CN201821570579 U CN 201821570579U CN 208899548 U CN208899548 U CN 208899548U
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Abstract
A kind of simulation underground engineering moves the laboratory testing rig of underwater slip casting closure, belongs to underground engineering anti-seep plugging technology field.Described device contains the dynamic water sink of simulation, and sink both ends are respectively equipped with water inlet and liquid outlet, and water inlet controls hydraulic pressure and flow velocity, and water outlet is equipped with waste collection bucket.Described device grouting equipment is made of inlet, blender and mixing speed controller.The quick test injecting paste material dispersion resistance device a kind of quickly and effectively judges means to practice to provide the selection of grouting for sealing water blockoff in engineering.The apparatus structure is simple, easy to operate, and test is accurate.Gel deposition process and diffusion profile rule of the slurry material in dynamic water can intuitively be observed, when to be administered in engineering practice to disasters such as underground engineering gushing water, prominent mud, provide it is a kind of it is easy, quickly, effectively, the evaluation method of science is for selecting suitable injecting paste material.
Description
Technical field
The utility model relates to a kind of simulation underground engineerings to move the laboratory testing rig that underwater slip casting blocks, and belong to underground work
Journey anti-seep plugging technology field.
Background technique
With the fast development that Chinese national economy is built, underground engineering project is in engineerings such as water conservancy, highway, railway tunnel
It is more and more in construction.The geological problems such as generally existing gushing water, prominent mud during underground engineering construction.Gushing water, prominent mud accident meeting
Lead to huge economic loss or even casualties.Slurry injection technique is pressurizeed using either manually or mechanically means, by cement or chemistry
Slurries are injected into gushing water position and achieve the purpose that sealing.It is the main means of current underground engineering reinforcing anti-seepage processing, by
It is widely used in the prevention and urgent improvement of gushing water in underground engineering construction, prominent mud harm.But in high hydraulic pressure, big flow gushing water feelings
Under condition, injecting paste material can be washed dilution, or even lose water reinforcement function.For example, traditional cement grout has hydrophily,
Under the function influence of dynamic water, easily it is washed erosion and loses plugging action.Therefore, suitable effectively evaluation method is selected to select
Select the hot spot that underground engineering gushing water, prominent mud improvement are always slurry injection technique research with slurry material.
The utility model devises a kind of laboratory testing rig simulated underground engineering and move underwater slip casting closure, can be intuitive
Gel deposition process and diffusion profile rule of the slurry material in dynamic water are observed in ground, are in engineering practice to underground work
When the disasters such as journey gushing water, prominent mud are administered, it is suitable for selecting to provide a kind of easy, quickly, effectively, scientific evaluation method
Injecting paste material.
Utility model content
The purpose of this utility model is to provide a kind of simulation underground engineerings to move the laboratory testing rig that underwater slip casting blocks.
The device is convenient for quickly, scientifically reflecting that biliquid or single fluid grouting slurry material expand in the entire gel process in dynamic water
Rule and gelling performance are dissipated, to be conducive to that correct grouting serous fluid is effectively selected to use during practicing underground engineering construction
In sealing water blockoff.
To achieve the goals above, the technical solution of the utility model is as follows: the simulation underground engineering moves underwater slip casting
The laboratory testing rig of closure, structure feature are, including motor, mixing speed adjuster, inlet, stirring rod, reaction
Device, pressure gauge, water inlet, simulates dynamic water sink, liquid outlet, waste collection bucket at valve；
Motor is fixed on fixed bracket by the first balancing pole, and stirring rod, stirring rod are fixedly connected with immediately below motor
It is inserted directly into reactor, the vertical outlet of reactor lower end is equipped with third valve, is to simulate dynamic water immediately below outlet
Sink, simulating dynamic water sink is cuboid sink, and axial one end is equipped with water inlet pipe, and water inlet pipe is equipped with pressure gauge, another axis
It is equipped with liquid outlet to port bottom surface, is terminated with waste collection bucket under liquid outlet；Reactor upper end is equipped with two inlet tubes of A and B,
A inlet tube is equipped with the first valve, and B inlet tube is equipped with the second valve；Mixing speed adjuster is connected to motor, for controlling
The revolving speed of motor.
Motor is fixed on fixed bracket by the first balancing pole；Reactor is cylinder, and outside is cased with fixing clamp, then by
Second balancing pole is fixed on fixed bracket；
It is axially horizontal positioned to simulate dynamic water sink, upper side opening.It is preferred that its axial direction is 2.5 meters long, horizontal direction wide by 10
Centimetre, vertical direction it is 10 centimetres high.Water inlet pipe and water outlet is respectively set in both ends, and water inlet pipe is connect with digital display type water pump, together
When be mounted with pressure gauge, for real-time monitoring move water water flow hydraulic pressure, analysis do not have to hydraulic pressure under gel Diffusion Law and gelling performance.
For the accuracy of test, the simulation underground engineering move the laboratory testing rig that underwater slip casting blocks be equipped with A,
Two grouting ports containing valve of B avoid the error generated when artificially pouring into A, B slurries for carrying out biliquid or single fluid grouting, because
For for rapid-hardening gel, the chemical reaction of A, B slurries is usually very fierce, sensitive.Different A, B slurry reaction volume ratios will produce
Raw different gelling performance.
In order to be uniformly mixed A, B, the simulation underground engineering is moved the laboratory testing rig that underwater slip casting blocks and is equipped with
The reactor that A, B slurries chemically react is provided, this reactor has agitating function.The agitating function landing controllable by revolving speed
Formula blender is realized.Reactor lower part is equipped with valve, for controlling slurries mixing time, can measure and coagulate under the differential responses time
Glue deposits in dynamic water sink and spread condition.
In order to ensure experimenter avoids safely environmental problem, the simulation underground engineering moves the interior that water slip casting blocks
Experimental rig goes out in water outlet also sets up slurries collecting vessel.
It is heavy that gel can be intuitively observed according to the laboratory testing rig that above-mentioned simulation underground engineering moves underwater slip casting closure
Long-pending and spread condition, and the residual rate of gel can be tested out, specific test procedure is as follows:
Step A: selection injecting paste material slurries prepare A, B slurries.It can be cement-silicate class injecting paste material, polyurethane
Any one in the injecting paste materials such as class injecting paste material, epoxy resin injecting paste material and Acrylates.
Step B: water flow velocity is controlled using water pump to adjust water inlet pressure.
Step C: in 200-500ml, A, B slurry volume ratio can regulate and control, record simultaneously injection slurries total volume every time
A, B slurries gross mass, is denoted as m0。
Step D: injection A, B slurries are in reactor, and mixing time controls in 1-60s, then apart from water inlet 10-
The valve of reactor lower part is opened at 20cm, at the uniform velocity injection slurries are in the dynamic water sink of simulation.
Step E: A, B slurries of non-gel can flow into waste collection bucket with flowing water, until the water of outflow is without containing any
A, when B slurry, water inlet is closed.It excludes after simulating the water in dynamic water sink, the thickness of different location gel first in testing flume,
Then the quality for weighing remaining gel in sink, is denoted as ms.So residual rate (the Retention of gel in the sink
Rate) are as follows:
Compared with prior art, the utility model simulation underground engineering moves the laboratory testing rig that underwater slip casting blocks
Beneficial effect is that device A, B slurry feed mouth controllable equipped with slip casting flow velocity and volume is avoided that human error.It is equipped with
Pressure and the controllable water inlet of flow velocity can gushing water hydraulic pressure by observation gel diffusion profile and gelling performance be on model engineering
It practices that the grouting serous fluid selection for sealing water blockoff is provided in engineering and a kind of quickly and effectively judges means.Also, the device
Structure is simple, and using simplicity, test is accurate.
Detailed description of the invention
Fig. 1 is to show in the utility model for simulating the structure for the laboratory testing rig that underground engineering moves underwater slip casting closure
It is intended to.
Fig. 2 is the partial enlarged view of Fig. 1.
Fig. 3 is gel thicknesses distribution map in embodiment 1.
1- fixes bracket, the first balancing pole of 2-, 2 '-the second balancing poles, 3- motor, 4- mixing speed adjuster, 5-A feed liquor
Pipe, 5 '-A inlet tubes, 6- stirring rod, 7- fixing clamp, 8- reactor, 9- third valve, 10- pressure gauge, 11- water inlet, 12- mould
Quasi- dynamic water sink, 13- liquid outlet, 14- waste collection bucket.
Specific embodiment
It is clearer and more comprehensible to make above-mentioned simulation underground engineering move the laboratory testing rig that underwater slip casting blocks, below in conjunction with
The present invention will be further described in detail for Detailed description of the invention and specific embodiment, but is not limited to following embodiment.
Embodiment 1
As illustrated in fig. 1 and 2, the utility model includes the fixed bracket of 1-, the first balancing pole of 2-, 2 '-the second balancing poles, 3- electricity
Machine, 4- mixing speed adjuster, 5-A inlet tube, 5 '-A inlet tubes, 6- stirring rod, 7- fixing clamp, 8- reactor, 9- third valve
Door, 10- pressure gauge, 11- water inlet, 12- simulate dynamic water sink, 13- liquid outlet, 14- waste collection bucket.
Testing specific implementation step includes the following:
Step a: weighing 20g cement, in 10g distilled water, stirs evenly and is made into A liquid.0.6g waterglass is weighed, uniformly
It is mixed in 7g distilled water, is made into B liquid.
Step b: the hydraulic pressure with water pump control water inlet flowing water is 0.1MPa.
Step c: A, B liquid quality summation, m are recorded0For 37.6g, A, B liquid are then injected into reactor.
Step d: in reactor, mixing time is controlled in 10s injection A, B liquid, is then beaten at water inlet 15cm
The third valve of reactor lower part is opened, at the uniform velocity injection slurries are in the dynamic water sink of simulation.
Step e: A, B liquid of non-gel can flow into waste collection bucket with flowing water, until the water of outflow does not contain any A, B
When liquid, water inlet is closed.It excludes after simulating the water in dynamic water sink, looks first at spread condition of the gel in dynamic water water, and survey
The thickness of different location gel in sink is tried, the quality of remaining gel in sink, m are finally weighedsFor 2.9g, and then calculate
It is 7.8% to retention ratio.
Fig. 3 can be seen that gel thickness shows the Diffusion Law for first increasing and reducing afterwards, and range of scatter is bigger, and
Integral thickness is smaller.Gelinite residual rate only has 7.8%, illustrates under dynamic water streamflow regime, most of gelinite be washed and
It is lost, is not suitable for dynamic under water as slip casting plugging material.
Claims (6)
1. a kind of simulation underground engineering moves the laboratory testing rig that underwater slip casting blocks, which is characterized in that including motor, stirring speed
It spends adjuster, inlet, stirring rod, reactor, valve, pressure gauge, water inlet, simulate dynamic water sink, liquid outlet, waste collection
Bucket；
Motor is fixed on fixed bracket by the first balancing pole, stirring rod is fixedly connected with immediately below motor, stirring rod is direct
In intercalation reaction device, the vertical outlet of reactor lower end is equipped with third valve, is to simulate dynamic water sink immediately below outlet,
Simulating dynamic water sink is cuboid sink, and axial one end is equipped with water inlet pipe, and water inlet pipe is equipped with pressure gauge, another axial port
Bottom surface is equipped with liquid outlet, is terminated with waste collection bucket under liquid outlet；Reactor upper end is equipped with two inlet tubes of A and B, A feed liquor
Pipe is equipped with the first valve, and B inlet tube is equipped with the second valve；Mixing speed adjuster is connected to motor, for controlling motor
Revolving speed.
2. a kind of simulation underground engineering described in accordance with the claim 1 moves the laboratory testing rig that underwater slip casting blocks, feature
It is, motor is fixed on fixed bracket by the first balancing pole.
3. a kind of simulation underground engineering described in accordance with the claim 1 moves the laboratory testing rig that underwater slip casting blocks, feature
It is, reactor is cylinder, and outside is cased with fixing clamp, is then fixed on fixed bracket by the second balancing pole.
4. a kind of simulation underground engineering described in accordance with the claim 1 moves the laboratory testing rig that underwater slip casting blocks, feature
It is, simulates dynamic water sink and be axially horizontally arranged, upper side is open.
5. a kind of simulation underground engineering described in accordance with the claim 1 moves the laboratory testing rig that underwater slip casting blocks, feature
Be, simulate dynamic water sink it is axially 2.5 meters long, wide 10 centimetres of horizontal direction, vertical direction it is 10 centimetres high.
6. a kind of simulation underground engineering described in accordance with the claim 1 moves the laboratory testing rig that underwater slip casting blocks, feature
It is, simulates dynamic water sink water inlet pipe and connect with digital display type water pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821570579.5U CN208899548U (en) | 2018-09-26 | 2018-09-26 | A kind of simulation underground engineering moves the laboratory testing rig of underwater slip casting closure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821570579.5U CN208899548U (en) | 2018-09-26 | 2018-09-26 | A kind of simulation underground engineering moves the laboratory testing rig of underwater slip casting closure |
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| CN208899548U true CN208899548U (en) | 2019-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340710A (en) * | 2021-06-09 | 2021-09-03 | 三峡大学 | Magnetic self-polymerization slurry water shutoff shear resistance testing device and testing method |
-
2018
- 2018-09-26 CN CN201821570579.5U patent/CN208899548U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340710A (en) * | 2021-06-09 | 2021-09-03 | 三峡大学 | Magnetic self-polymerization slurry water shutoff shear resistance testing device and testing method |
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