CN106052921A - Filling retaining wall stress change rule simulation test device and test method - Google Patents
Filling retaining wall stress change rule simulation test device and test method Download PDFInfo
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- CN106052921A CN106052921A CN201610344794.2A CN201610344794A CN106052921A CN 106052921 A CN106052921 A CN 106052921A CN 201610344794 A CN201610344794 A CN 201610344794A CN 106052921 A CN106052921 A CN 106052921A
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- filling
- elastic film
- test device
- retaining wall
- changing pattern
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Provide are a filling retaining wall stress change rule simulation test device and test method, belonging to the mining industry engineering technical field. The test device is characterized by comprising a test tube and a measurement device, wherein the test tube is vertically arranged, the side surface of the test tube is provided with an opening which is sealed by an elastic film (8); the measurement device is in connection with the elastic film (8), and detects the stress of the elastic film (8). The filling retaining wall bearing change rule simulation test device can stimulate stress change rules of a filling retaining wall, and obtain filling retaining wall stress change rules under different conditions so as to provide reference for retaining wall design. The test device has a simple structure, is convenient to assemble, can simulate stress change conditions of filling retaining walls of different filling materials, and has a wide application range; the test method is simple to operate, and can stimulate retaining wall stress under different filling conditions; a pressure-time broken line graph can well display retaining wall stress change rules in a tailing slurry settlement process in a visual mode.
Description
Technical field
A kind of filling counterfort stress Changing Pattern simulating test device and method of testing, belong to mineral engineering field.
Background technology
Along with the method for mining by the way of filling is in the application of metal mine, relevant Cut-and-fill Mining Technology has obtained studying widely, its
Can middle filling counterfort technology safe filling play vital effect to goaf especially, is must to complete before filling
One important process.Yet with unique effect and the different characteristics of slip pipeline conveying of casting resin, many mines encounter
Filling counterfort design and the problem calculated.Due to barricade design improper, part mine occur barricade to collapse in stowing operation or
Person's running pulp accident, causes serious loss.Therefore, when using the method for mining by the way of filling, in order to ensure the safe working in mine, joint
About Financial cost, successfully realize filling, it is necessary to reliable filling counterfort reasonable in design.
Due to the particularity of each mine down-hole filling condition, the use of barricade is incomplete same, does not also have complete set
Design specification be referred to.Currently for the design strength of filling counterfort, do substantial amounts of research both at home and abroad, but it has designed
It is worth the most higher, causes barricade intensity excessive, high cost.At present, filling counterfort stress Changing Pattern is not carried out system
Research, thus cannot offer reference for the design of filling counterfort.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, it is provided that a kind of simple in construction, can be to filling
Fill out filling counterfort stress Changing Pattern simulating test device and method of testing that barricade stress Changing Pattern is simulated.
The technical solution adopted for the present invention to solve the technical problems is: this filling counterfort stress Changing Pattern simulation test
Device, it is characterised in that: including testing tube and measurement apparatus, testing tube is vertically arranged, and the side of testing tube is provided with opening also
Being closed by elastic film, measurement apparatus is connected with elastic film, and detects the power that elastic film is subject to.
Preferably, described testing tube is glass tubing.
Preferably, it is provided with guiding mechanism between described elastic film and measurement apparatus.
Preferably, described guiding mechanism includes guide pipe and Glass rod, and the axis of guide pipe is vertical with elastic film,
Glass rod one end is connected with measurement apparatus, and the other end slides in putting in guide pipe and contacts with elastic film.
Preferably, described measurement apparatus is pull and push dynamometer, and pull and push dynamometer is slidably mounted on backing plate by installing plate, pad
Plate is provided with the governor motion that the distance to pull and push dynamometer Yu elastic film is adjusted.
Preferably, described governor motion is regulation bolt, and the termination of regulation bolt is rotationally connected with pull and push dynamometer, backing plate
One end away from elastic film is provided with pressure regulating part, and regulation bolt is connected with pressure regulating part by screw thread, and promotes push-and-pull
Power meter moves.
Preferably, described testing tube lower end is provided with end cap.
A kind of method of testing utilizing above-mentioned filling counterfort stress Changing Pattern simulating test device, it is characterised in that:
Comprise the steps:
Step 1, use elastic film is by the closure of openings of testing tube sidepiece, and measurement apparatus is arranged on elastic film side;
Step 2, the position of regulation measurement apparatus, make measurement apparatus contact with elastic film;
Step 3, tailings slurry in testing tube, the registration of recording measuring device, and draw pressure time broken line graph;
Step 4, after the sedimentation completely of tailings slurry, refills the tailings slurry of equivalent;
Step 5, repeats many times of step 4, the registration of recording measuring device, and draws the pressure of each filling in the same coordinate system
Power time broken line graph.
Preferably, the height in testing tube of the tailings slurry described in step 3 is 10 ~ 150cm.
Compared with prior art, filling counterfort stress Changing Pattern simulating test device and the method for testing of the present invention is had
Provide the benefit that:
1, the power that elastic film can be subject to by measurement apparatus measures, thus measures the mortar in testing tube to elastic film
Pressure, and then the Changing Pattern of the power being subject to filling counterfort is simulated, and obtains barricade stress under the conditions of different filling
Changing Pattern, thus the design for filling counterfort is offered reference, this test apparatus structure is simple, easy to assembly, it is possible to simulation is not
With the stress situation of change of casting resin retrofilling barricade, applied widely.
2, glass tubing is convenient observes the mortar in testing tube, and the amount of the convenient mortar controlling filling, thus
More accurately the stress situation of change of filling counterfort can be simulated.
3, the pressure of elastic film output can be guided by guiding mechanism, thus ensures stress level, is conducive to carrying
The accuracy of high simulation.
4, Glass rod one end is connected with measurement apparatus, and the other end puts in guide pipe and contacts with elastic film, Glass rod
Pressure can either be transmitted, enable measurement apparatus to be arranged on the position being suitable for reading registration, additionally it is possible to coordinate with guide pipe, it is ensured that
The stress level being transported in measurement apparatus, thus ensure that the measurement of measurement apparatus is accurate.
5, pull and push dynamometer is arranged on backing plate by installing plate, and the height of pull and push dynamometer is adjusted by backing plate, so that
Pull and push dynamometer keeps level with the opening of testing tube sidepiece, it is ensured that the accuracy measuring elastic film pressure experienced.
6, regulation bolt can regulate the distance of pull and push dynamometer and elastic film such that it is able to ensures that pull and push dynamometer is with elastic
Film contacts, when operation, when the registration of measurement apparatus is 0.5N it is believed that the two has been in close contact, it is ensured that measure
Accuracy.
7, end cap can be blind plate or the poly (methyl methacrylate) plate with through hole, it is possible to simulation dehydration and not dehydration conditions lower block
The Changing Pattern of the power that wall is subject to, thus preferably offer reference for the design of filling counterfort.
8, method of testing is simple to operate, and can have been simulated under different condition by the difference of tailings slurry addition manner
Barricade stress, pressure time broken line graph can show well and be in the change of barricade stress in tailings slurry infall process
Rule, performance is directly perceived.
9, the thickness of tailings slurry is 10 ~ 150mm, identical with the stowing operation of practice of construction process, more really
The Changing Pattern of barricade stress is simulated, it is possible to preferably practice of construction process is instructed.
Accompanying drawing explanation
Fig. 1 is the schematic front view of filling counterfort stress Changing Pattern simulating test device.
Fig. 2 is primary filling 30cm not dehydration conditions lower retaining wall stress Changing Pattern figure.
Fig. 3 is continuous filling not dehydration conditions lower retaining wall stress Changing Pattern figure.
Fig. 4 is primary filling 30cm dehydration conditions lower retaining wall stress Changing Pattern figure.
Fig. 5 is continuous filling dehydration conditions lower retaining wall stress Changing Pattern figure.
In figure: 1, glass tubing 2, guide pipe 3, Glass rod 4, pull and push dynamometer 5, installing plate 6, regulation bolt 7, backing plate
701, pressure regulating part 8, elastic film 9, end cap.
Detailed description of the invention
Fig. 1 ~ 5 are highly preferred embodiment of the present invention, and 1 ~ 5 the present invention will be further described below in conjunction with the accompanying drawings.
A kind of filling counterfort stress Changing Pattern simulating test device, including testing tube and measurement apparatus, testing tube erects
To setting, the side of testing tube is provided with opening and is closed by elastic film 8, and measurement apparatus is connected with elastic film 8, and detects bullet
The power that property thin film 8 is subject to.The power that elastic film 8 is subject to can be measured by measurement apparatus, thus measures the sand in testing tube
Starch the pressure to elastic film 8, and then the Changing Pattern of the power being subject to filling counterfort is simulated, obtain different filling condition
The Changing Pattern of lower retaining wall stress, thus the design for filling counterfort is offered reference, this test apparatus structure is simple, assembling side
Just, it is possible to the stress situation of change of the different casting resin retrofilling barricade of simulation, applied widely.
Concrete: as shown in Figure 1: measuring pipeline is glass tubing 1, and glass tubing 1 is lucite tube, facilitates sight glass pipe
The sedimentation situation of tailings slurry in 1, but also the height of the convenient tailings slurry observing filling, thus the convenient tail controlling filling
The amount of body, makes the stressing conditions during the situation of the power that elastic film 8 is subject to and practice of construction more closely, make simulation
Result is more accurate.Scale can be set on glass tubing 1.
Glass tubing 1 is tee T, and the diameter of the side pipe of glass tubing 1 is less than the diameter of supervisor, and side pipe is arranged under supervisor
Portion, elastic film 8 is arranged on the termination of side pipe, and is closed by side pipe.Elastic film 8 is positioned at vertical plane, elastic film 8
It is fixedly installed, is consistent with barricade practice of construction environment.
The lower end of glass tubing 1 supervisor is provided with end cap 9, and supervisor lower end is provided with ring flange, and end cap 9 is solid with ring flange by bolt
Surely connect and seal.End cap 9 has two kinds, and one is blind plate, another kind of with through hole such that it is able to simulation is dehydrated and is not dehydrated two
The tailings slurry pressure to elastic film 8 under the conditions of Zhong, when end cap 9 is blind plate, water cannot flow out from glass tubing 1 bottom, it is possible to
Simulate the Changing Pattern of the not power that dehydration conditions lower retaining wall is subject to;When end cap is with through hole, water can flow from glass tubing 1 bottom
Going out, tailings cannot be discharged by via through holes, it is possible to simulation dehydration conditions lower retaining wall stress Changing Pattern, thus is preferably filling counterfort
Design offer reference.
Being provided with guiding mechanism between elastic film 9 and measurement apparatus, measurement apparatus is pull and push dynamometer 4, and guiding mechanism includes
Guide pipe 2 and Glass rod 3.The side pipe termination of glass tubing 1 is provided with ring flange, and one end of guide pipe 2 also is provided with ring flange, guides
The side pipe of pipe 2 and glass tubing 1 connects by ring flange is fixing, and elastic film 8 is fixed by two ring flanges, it is possible to avoid elasticity
Thin film 8 is subjected to displacement, so that measurement result generation deviation, causes practice of construction environment fixed with filling counterfort position
It is not inconsistent, thus reduces the directive function of analog result.The internal diameter of Glass rod 3 is slightly smaller than the internal diameter of guide pipe 2, Glass rod 3
Right-hand member is connected with pull and push dynamometer 4, and left end puts in guide pipe 2, and contacts with elastic film 8, and Glass rod 3 under original state
Contacting with elastic film 8, the registration of pull and push dynamometer 4 is about 0.5N, i.e. thinks that Glass rod 3 keeps tight with elastic film 8
Contact.Guide pipe 2 is also lucite tube.
Pull and push dynamometer 4 is arranged on installing plate 5, and installing plate 5 is slidably mounted on backing plate 7.Backing plate 7 and installing plate 5 can
Make the side pipe holding level of pull and push dynamometer 4 and glass tubing 1, so that the left end of Glass rod 3 is fitted completely with elastic film 8, this
Sample can either make Glass rod 3 more sensitive to the pressure of elastic film 8, ensure that again the measurement of pull and push dynamometer 4 is more accurate.
The right-hand member of backing plate 7 is provided with governor motion, and governor motion can regulate the distance of pull and push dynamometer 4 and elastic film 8, from
And the left side of Glass rod 3 and elastic film 8 can be made to fit completely, it is ensured that the accuracy of measurement.Governor motion includes regulation
Bolt 6, the right side of backing plate 7 is arranged over being perpendicular to the pressure regulating part 701 of backing plate 7, and pressure regulating part 701 is provided with screw thread
Hole, regulation bolt 6 is arranged in screwed hole, and the termination of regulation bolt 6 is rotationally connected with installing plate 5, in use by regulation
Bolt 6 promotes installing plate 5, thus realizes the regulation of pull and push dynamometer 4, easy to adjust.
The method of testing of above-mentioned filling counterfort stress Changing Pattern simulating test device, comprises the steps:
Step 1, use elastic film 8 is by the closure of openings of testing tube sidepiece, and measurement apparatus is arranged on elastic film 8 one
Side.
Elastic film 8 is arranged on the ring flange of glass tubing 1 side pipe termination, is then directed to ring flange and the side of pipe 2
The ring flange of pipe end is fixing to be connected and seals, and elastic film 8 is fixed by two ring flanges.End cap 9 is bolted on
Supervisor lower end the supervisor general lower end of glass tubing 1 seal.Then installing plate 5 is arranged on backing plate 7, then pull and push dynamometer 4 is pacified
Being contained on installing plate 5, and put in one end of Glass rod 3 in guide pipe 2, the other end is connected with pull and push dynamometer 4.
Step 2, the position of regulation measurement apparatus, make measurement apparatus contact with elastic film 8.
Regulate this measurement apparatus, rotate regulation bolt 6, observe the registration of pull and push dynamometer 4 and Glass rod 3 with elastic simultaneously
The relative position of thin film 8, until the left end of Glass rod 3 fits with elastic film 8, when the registration of pull and push dynamometer 4 is that 0.5N is left
It is believed that adjust complete time right.The registration in pull and push dynamometer 4 so read is elastic film 8 pressure experienced value, surveys
Amount result is more accurate.
Step 3, tailings slurry in testing tube, the registration of recording measuring device, and draw pressure time broken line
Figure.
From the upper end of glass tubing 1 supervisor to tailings slurry in glass tubing 1, until tailings slurry is in glass tubing 1
It is highly 30cm, then records the registration of pull and push dynamometer 4, and according to the numeric renderings pressure time broken line graph of record.
Step 4, after the sedimentation completely of tailings slurry, refills the tailings slurry of equivalent.
After tailings slurry in glass tubing 1 is responsible for settles completely, tailings slurry in glass tubing 1 again, and fill
The height of the tailings slurry filled out is also for 30cm.
Step 5, repeats step 4 twice, the registration of recording measuring device, and draws pressure time broken line graph.
Repeat step 4, i.e. after tailings slurry settles completely, the tailings slurry of filling equivalent in glass tubing 1 again, and
The registration of record pull and push dynamometer 4, then draws the pressure time broken line graph after every time adding in same coordinate system.
End cap 9 is replaced by the end cap with through hole, again tests, and draw pressure time broken line graph.
As shown in Figure 2: under primary filling 30cm not dehydration conditions, As time goes on barricade stress is gradually reduced, and
Reduce is increasingly slower, finally tends to constant.And force value is maximum when firm filling, about 9N, pressure occurs prominent when 1h
Become, and tend to steady state value 6.5N when 4h.
As shown in Figure 3: continuously under filling not dehydration conditions, be followed successively by from left to right for the first time, for the second time, for the third time, the
Broken line graph during four fillings.Every time after filling, barricade pressure experienced all can be undergone mutation, and pressure tends to finally
Force value time constant will be more than the initial value of pressure during filling before, and in four broken line graphs from left to right, and pressure
Reduce is fewer and feweri.
As shown in Figure 4: primary filling 30cm dehydration conditions, As time goes on barricade stress is gradually reduced, reduction
Increasingly slower, finally tend to constant.And the pressure maximum when firm filling, about 9N, the ratio that pressure reduces is shallower, and subtracts
Not undergoing mutation during little, pressure tends to steady state value 1N after 6h.
As shown in Figure 5: continuously under filling dehydration conditions, be followed successively by from left to right for the first time, for the second time, for the third time, the 4th
Broken line graph during secondary filling.Every time after filling, barricade pressure experienced can be undergone mutation, and pressure when finally tending to constant
Force value is gradually reduced from left to right, the initial pressure when follow-up filling be less than before the initial pressure of filling, and along with filling
Filling out the increase of number of times, the difference of the two is gradually increased, and in four broken line graphs from left to right, pressure reduces increasingly
Few, and when the 4th filling, when pressure is constant, trend towards 0.
This filling counterfort stress Changing Pattern simulating test device with can real-time measurement retaining wall translation time limited pressure of banketing
The difference of the device of power and change in displacement is as follows:
(1) it is used to gear soil due to retaining wall, thus avoids landslide of banketing, therefore can have during real-time measurement retaining wall translation
The limit device of pressure and the change in displacement side relative with retaining wall of banketing must be inclination, thus preferably executes reality
Work environment is simulated, and to simulate displacement and the pressure experienced of retaining wall more accurately, and this filling counterfort stress becomes
Barricade stress when law simulating test device is to backfill minery is simulated, therefore in this filling counterfort stress
Changing Pattern simulating test device is relatively low to the requirement in four faces, in order to preferably construction simulation is on-the-spot, in the present embodiment
Have employed vertical glass tubing 1 to simulate.
(2) retaining wall in use allows to occur certain displacement, therefore can have during real-time measurement retaining wall translation
The banket device of pressure and change in displacement of limit typically requires and arranges displacement meter, with measure banket after the displacement of retaining wall;And originally fill
Filling out the filling counterfort of barricade stress Changing Pattern simulating test device has obstruction, thus without being subjected to displacement, at mould due to periphery
Need to limit the displacement of filling counterfort during plan, analog result can be made more accurate.
(3) can real-time measurement retaining wall translation time the limited device banketing pressure and change in displacement be to measure retaining wall
Pressure and the change of displacement during translation.And filling counterfort stress Changing Pattern simulating test device is to measure different filling bar
The Changing Pattern of part lower retaining wall stress, basic goal is in order to the design of filling counterfort provides strong foundation.Therefore, filling gear
Wall stress Changing Pattern simulating test device with can real-time measurement retaining wall translation time limited banket pressure and change in displacement dress
It is all different for putting in technical field, analogy method and simulation process and measurement object, there is therebetween basic district
Not.
The above, be only presently preferred embodiments of the present invention, is not the restriction that the present invention makees other form, appoints
What those skilled in the art changed possibly also with the technology contents of the disclosure above or be modified as equivalent variations etc.
Effect embodiment.But every without departing from technical solution of the present invention content, the technical spirit of the foundation present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still falls within the protection domain of technical solution of the present invention.
Claims (9)
1. a filling counterfort stress Changing Pattern simulating test device, it is characterised in that: include testing tube and measurement apparatus,
Testing tube is vertically arranged, and the side of testing tube is provided with opening and is closed by elastic film (8), measurement apparatus and elastic film (8)
It is connected, and detects the power that elastic film (8) is subject to.
Filling counterfort stress Changing Pattern simulating test device the most according to claim 1, it is characterised in that: described survey
Test tube is glass tubing (1).
Filling counterfort stress Changing Pattern simulating test device the most according to claim 1, it is characterised in that: described bullet
It is provided with guiding mechanism between property thin film (8) and measurement apparatus.
Filling counterfort stress Changing Pattern simulating test device the most according to claim 3, it is characterised in that: described leads
Including guide pipe (2) and Glass rod (3) to mechanism, the axis of guide pipe (2) is vertical with elastic film (8), Glass rod (3)
End is connected with measurement apparatus, and the other end slides in putting in guide pipe (2) and contacts with elastic film (8).
Filling counterfort stress Changing Pattern simulating test device the most according to claim 1, it is characterised in that: described survey
Amount device is pull and push dynamometer (4), and pull and push dynamometer (4) is slidably mounted on backing plate (7) by installing plate (5), and backing plate (7) is provided with
The governor motion that the distance of pull and push dynamometer (4) Yu elastic film (8) is adjusted.
Filling counterfort stress Changing Pattern simulating test device the most according to claim 5, it is characterised in that: described tune
Joint mechanism is regulation bolt (6), and the termination of regulation bolt (6) is rotationally connected with pull and push dynamometer (4), and backing plate (7) is away from Thin Elastic
One end of film (8) is provided with pressure regulating part (701), and regulation bolt (6) is connected with pressure regulating part (701) by screw thread, and pushes away
Dynamic pull and push dynamometer (4) is mobile.
Filling counterfort stress Changing Pattern simulating test device the most according to claim 1, it is characterised in that: described survey
Test tube lower end is provided with end cap (9).
8. the test side of the filling counterfort stress Changing Pattern simulating test device that a kind utilizes described in any one of claim 1 ~ 7
Method, it is characterised in that: comprise the steps:
Step 1, use elastic film (8) is by the closure of openings of testing tube sidepiece, and measurement apparatus is arranged on elastic film (8)
Side;
Step 2, the position of regulation measurement apparatus, make measurement apparatus contact with elastic film (8);
Step 3, tailings slurry in testing tube, the registration of recording measuring device, and draw pressure time broken line graph;
Step 4, after the sedimentation completely of tailings slurry, refills the tailings slurry of equivalent;
Step 5, repeats many times of step 4, the registration of recording measuring device, and draws the pressure of each filling in the same coordinate system
Power time broken line graph.
Method of testing the most according to claim 8, it is characterised in that: the tailings slurry described in step 3 is in testing tube
Height be 10 ~ 150cm.
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CN201610344794.2A CN106052921B (en) | 2016-05-23 | 2016-05-23 | A kind of filling counterfort stress changing rule simulating test device and test method |
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CN201610344794.2A CN106052921B (en) | 2016-05-23 | 2016-05-23 | A kind of filling counterfort stress changing rule simulating test device and test method |
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Cited By (5)
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CN106898231A (en) * | 2017-04-21 | 2017-06-27 | 中国矿业大学(北京) | A kind of goaf filling analogue experiment installation and operating method |
CN108661718A (en) * | 2018-05-11 | 2018-10-16 | 长春黄金研究院有限公司 | A kind of device and method for mine down-hole stope filling barricade forces testing |
CN111207863A (en) * | 2020-02-27 | 2020-05-29 | 西南科技大学 | Method and device for testing stress of sections of segmental underground diaphragm wall |
CN113804092A (en) * | 2021-09-17 | 2021-12-17 | 北京科技大学 | Experimental device and method for measuring deformation of filled retaining wall geotextile |
CN117147300A (en) * | 2023-10-27 | 2023-12-01 | 矿冶科技集团有限公司 | Filling retaining wall stress simulation test device, test equipment and test method |
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CN104265248A (en) * | 2014-09-10 | 2015-01-07 | 甘肃蓝科石化高新装备股份有限公司 | Horizontal well sand filling test shaft device |
CN204479410U (en) * | 2015-04-02 | 2015-07-15 | 中铁第五勘察设计院集团有限公司 | Fragment-free track slab retrofilling layer intensity detecting device |
CN204679497U (en) * | 2015-06-17 | 2015-09-30 | 西安科技大学 | A kind of form lateral pressure proving installation of grouting filling material |
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JP2005207854A (en) * | 2004-01-22 | 2005-08-04 | Sumitomo Chemical Co Ltd | Method for testing filling strength of sample particles |
CN104265248A (en) * | 2014-09-10 | 2015-01-07 | 甘肃蓝科石化高新装备股份有限公司 | Horizontal well sand filling test shaft device |
CN204479410U (en) * | 2015-04-02 | 2015-07-15 | 中铁第五勘察设计院集团有限公司 | Fragment-free track slab retrofilling layer intensity detecting device |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106898231A (en) * | 2017-04-21 | 2017-06-27 | 中国矿业大学(北京) | A kind of goaf filling analogue experiment installation and operating method |
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CN108661718A (en) * | 2018-05-11 | 2018-10-16 | 长春黄金研究院有限公司 | A kind of device and method for mine down-hole stope filling barricade forces testing |
CN111207863A (en) * | 2020-02-27 | 2020-05-29 | 西南科技大学 | Method and device for testing stress of sections of segmental underground diaphragm wall |
CN111207863B (en) * | 2020-02-27 | 2024-04-12 | 西南科技大学 | Method and device for testing joint stress of joint-shaped underground diaphragm wall |
CN113804092A (en) * | 2021-09-17 | 2021-12-17 | 北京科技大学 | Experimental device and method for measuring deformation of filled retaining wall geotextile |
CN117147300A (en) * | 2023-10-27 | 2023-12-01 | 矿冶科技集团有限公司 | Filling retaining wall stress simulation test device, test equipment and test method |
CN117147300B (en) * | 2023-10-27 | 2024-03-22 | 矿冶科技集团有限公司 | Filling retaining wall stress simulation test device, test equipment and test method |
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