CN106769512A - Non-homogeneous load testing machine for simulating Water Inrush - Google Patents
Non-homogeneous load testing machine for simulating Water Inrush Download PDFInfo
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- CN106769512A CN106769512A CN201611272375.9A CN201611272375A CN106769512A CN 106769512 A CN106769512 A CN 106769512A CN 201611272375 A CN201611272375 A CN 201611272375A CN 106769512 A CN106769512 A CN 106769512A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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Abstract
A kind of non-homogeneous load testing machine for simulating Water Inrush, including test bench system, loading system and test system, test system includes pressure cell and displacement meter, test bench system is by testing stand base, test-bed main body and two Water hydraulic static pressure loading system trays are constituted, test-bed main body is by bottom girder, back timber, two curb girders and preceding, the closed frame structure of rear board composition, loading system is by bottom compression system, top compression system and Water hydraulic static pressure loading system are constituted, Water hydraulic static pressure loading system is made up of two groups of water bags, every group of water bag includes several water bags, water filled with certain volume in each water bag, in test-bed body lumen space between two groups of water bags, equipped with similarity model test model.Its advantage is the hydraulic pressure environment that can be supplied to base plate active, realizes hydraulic pressure uniformly and non-uniform loading, there is provided enough similarity model test model deformation amounts, can do the law of deformation and breakage law study of different hydraulic pressure environment, improves reliability, the practicality of experiment.
Description
Technical field
The present invention relates to a kind of non-homogeneous load testing machine for simulating Water Inrush, it is applied to simulate mining under safe waterpressure of aquifer
When coal seam bottom water bursting experiment.
Background technology
Coal seam bottom water bursting is to form the major reason in mine water disaster, is also to ensure that coal mine production safety is urgently to be resolved hurrily
Problem.Especially in North China of China, with deep increase is adopted, high artesian threatens further obvious to colliery.In recovery process,
Pressure effect of the artesian water to base plate causes coal seam floor failure, and then triggers artesian water to enter work with the conduit pipe for being formed
Face, very big harm is caused to coal production.Solve the problems, such as coal seam bottom water bursting should consider the stress of primary rock, geological structure,
On the basis of the factors such as lower water, mining influence, from stress field and the coefficient angle of seepage field, water inrush structure is studied, ground
Study carefully the deformation and destruction of the stope rock system comprising floor rock.Research meanses based on original position experiment and theory analysis
Have some limitations and error；And analog simulation experiment is based on the theory of similarity, can will be difficult what is measured in actual stope
Data and the expected phenomenon for occurring etc. are deduced by model and are studied, and make up the deficiency of Physical Experiment and theory analysis.
Forefathers have carried out substantial amounts of research for the artesian water Water hydraulic static pressure loading mode that Water Inrush is tested.At present, typically adopt
With spring and block rubber as Water hydraulic static pressure loading system loads.There is following several big shortcomings in these load modes：One is, it is impossible to the bottom of to
Plate provides the hydraulic pressure environment of active；The two hydraulic pressure environment being to provide are pressurized, and it is differed very with actual stope hydraulic pressure environment
Greatly；In addition, carrying out different hydraulic pressure environmental Comparison experimental studies for same testing stand does not have too many progress.It is above existing skill
The deficiency of art.
The content of the invention
The purpose of the present invention is：A kind of experimental rig for Water Inrush simulated test, the experimental rig structure are provided
Simply, using the teaching of the invention it is possible to provide to the hydraulic pressure environment of base plate active, realize that hydraulic pressure is uniform or non-uniform loading, there is provided enough analog materials
Deflection, and the law of deformation and breakage law study of different hydraulic pressure environment can be done, accomplish that each experiment is unaffected, and be easy to see
Examine, substantially increase the dependable with function of experiment.
The purpose of the present invention can be realized by following technical proposals：
This is used to simulate the non-homogeneous load testing machine of Water Inrush, including test bench system, loading system and survey
Test system, the test system includes pressure cell and displacement meter, and pressure cell and displacement meter are arranged in the analog material examination of experiment
Test inside model, pressure cell and displacement meter are connected by data wire with computer, it is characterized in that：The test bench system by
Testing stand base, test-bed main body and two Water hydraulic static pressure loading system trays composition, test-bed main body is by bottom girder, back timber, both sides
The closed frame structure of beam and front and back panels composition, on testing stand base, back timber is located at the top of test-bed main body to bottom girder
Portion, two curb girders help position mounted between bottom girder, back timber two, and front and back panels are separately fixed at forward and backward the two of test-bed main body
Side, watch window is provided with the front panel centre position of test-bed main body, and poly (methyl methacrylate) plate is installed at the watch window, and
With steel plate reinforcement, some independent water bag compartments, each Water hydraulic static pressure loading system are provided with each Water hydraulic static pressure loading system tray laterally side by side
The bottom surface centre position of system frame offers long rabbet, and two Water hydraulic static pressure loading system trays are just being put respectively and inversion is fixed on test-bed master
Bottom and top between the curb girder of body two；Loading system is by bottom compression system, top compression system and Water hydraulic static pressure loading system group
Into, bottom compression system is placed in test-bed body lumen, in the space on bottom girder top, some pressurization parts of bottom compression system
Part is fixed on the bottom surface long rabbet of the Water hydraulic static pressure loading system tray of bottom between the curb girder of test-bed main body two by just putting, and is respectively protruding into
To in some water bag compartments of the Water hydraulic static pressure loading system tray, top compression system is placed in test-bed body lumen, back timber bottom
Space in, some pressure-producing parts of top compression system are fixed on the water on top between the curb girder of test-bed main body two by being inverted
The bottom surface long rabbet of loading system frame is pressed, is respectively protruding into some water bag compartments of the Water hydraulic static pressure loading system tray, in two hydraulic pressure
In each water bag compartment of loading system frame, each pressure-producing part front end of bottom compression system, and top compression system
Each pressure-producing part front end is provided with pad, and Water hydraulic static pressure loading system is made up of two groups of water bags, and every group of water bag includes several
Water bag, the water filled with certain volume in each water bag, one of which water bag is loaded on just to put and is fixed on test-bed main body two respectively
Between curb girder in some water bag compartments of the Water hydraulic static pressure loading system tray of bottom, another group of water bag is fixed on experiment loaded on inversion respectively
Between the curb girder of stand main body two in some water bag compartments of the Water hydraulic static pressure loading system tray on top, each water bag and each pad it
Between, bottom steel plate is provided with, in the test-bed body lumen space between two groups of water bags, equipped with similarity model test model, phase
Like the bottom and top of testing of materials model, respectively between two groups of water bags, one layer of fexible film is equipped with.
Each Water hydraulic static pressure loading system tray of the invention is by two angle steel and the vertical stationary barrier group less than 1 quantity of every group of water bag
Into, two angle steel are forward and backward parallel, and opening inwardly set, and be separately fixed at the bottom between the curb girder of test-bed main body two or
Top, front and rear sides position, the base horizontal sides of two angle steel constitute the bottom surface of each Water hydraulic static pressure loading system tray, two angle steel bottoms
Gap between horizontal sides constitutes the long rabbet in the bottom surface centre position of each Water hydraulic static pressure loading system tray, and the side of two angle steel is vertical
While respectively constituting the forward and backward face of each Water hydraulic static pressure loading system tray, the vertical stationary barrier less than 1 quantity of every group of water bag uniformly divides
Cloth, be fixed in the base horizontal sides of two angle steel, by the space between two angle steel be separated into that several set laterally side by side it is only
Vertical water bag compartment.
Bottom compression system of the invention is made up of some hydraulic pressure loading devices or jack for just installing laterally side by side；
Top compression system is made up of some hydraulic pressure loading devices or jack for being inverted setting laterally side by side.
Each water bag of the invention is rubber high-pressure gasbag.
Of the invention each water bag is shaped as planar water pillow shape, and its positive and negative is rectangle, and is provided with folding in front
Folded texture, side is square radiussed.
The present invention installs poly (methyl methacrylate) plate at the watch window in the front panel centre position of test-bed main body, and uses steel
Plate, is reinforced using 25 × 25 checkered manners.
Water filled with 2/3 volume in each water bag (6) of the invention.
It is an advantage of the invention that：1) apparatus structure is simple, there is provided a kind of artesian water water of new Water Inrush experiment
Pressure load mode, using the teaching of the invention it is possible to provide to the hydraulic pressure environment of base plate active, realizes that hydraulic pressure is uniform or non-uniform loading, there is provided enough phases
Like testing of materials model deformation amount；2) device is used, by changing the pressure of separate type loading system, base plate can be simulated equal
Mechanism of water inrush under cloth and non-Uniform Loads, can do the law of deformation and breakage law study of different hydraulic pressure environment, each
Water bag accomplishes that each water bag position test is unaffected loaded in each independent water bag compartment, and is easy to observation, greatly improves
The dependable with function of experiment；3) bearing capacity of water bag is strong；4) device is easy to observation to provide uniform artesian water hydraulic pressure
Each water bag mechanics of environment, and each water bag and similarity model test model intersection similarity model test model deformation
Destructive characteristics, that is, be a kind of non-homogeneous loading examination for being preferably used to simulate Water Inrush the characteristics of forming artesian water and lead liter band
Experiment device.
And be easy to observe,
Brief description of the drawings
Fig. 1 is that experimental rig of the present invention removes the main view broken section structural representation after front and back panels；
Fig. 2 is the left view structural representation after experimental rig of the present invention removes front and back panels.
Specific embodiment
As shown in Figure 1, 2, for simulating the non-homogeneous load testing machine of Water Inrush, including test bench system, plus
Loading system and test system, the test system include pressure cell and displacement meter, and pressure cell and displacement meter are arranged in experiment
Inside similarity model test model 9, pressure cell and displacement meter are connected by data wire with computer, it is characterized in that：The examination
Test platform system to be made up of testing stand base 2, the Water hydraulic static pressure loading system tray of test-bed main body 1 and two, test-bed main body 1 is served as reasons
The closed frame structure of bottom girder 11, back timber 13, two curb girders 12 and front and back panels composition, bottom girder 11 is mounted on testing stand base 2,
Back timber 13 is located at the top of test-bed main body 1, and two curb girders 12 help position, front and back panels mounted between bottom girder 11, back timber 13 two
The front and rear sides of test-bed main body 1 is separately fixed at, observation window is provided with the front panel centre position of test-bed main body 1
Mouthful, poly (methyl methacrylate) plate is installed at the watch window, and steel plate reinforcement is used, it is provided with laterally side by side on each Water hydraulic static pressure loading system tray
Some independent water bag compartments, the bottom surface centre position of each Water hydraulic static pressure loading system tray offers long rabbet 14, two Water hydraulic static pressure loadings
The bottom and top being fixed between 1 liang of curb girder 12 of test-bed main body are just being put and be inverted to system tray respectively；Loading system is the bottom of by
Portion's compression system, top compression system and Water hydraulic static pressure loading system composition, bottom compression system are placed in the inner chamber of test-bed main body 1,
In the space on the top of bottom girder 11, some pressure-producing parts of bottom compression system are fixed on 1 liang of curb girder of test-bed main body by just putting
The bottom surface long rabbet 14 of the Water hydraulic static pressure loading system tray of bottom between 12, is respectively protruding into some water bags of the Water hydraulic static pressure loading system tray
In compartment, top compression system is placed in the inner chamber of test-bed main body 1, in the space of the bottom of back timber 13, if top compression system
Dry pressure-producing part is fixed on the bottom surface elongated slot of the Water hydraulic static pressure loading system tray on top between 1 liang of curb girder 12 of test-bed main body by being inverted
Mouth 14, is respectively protruding into some water bag compartments of the Water hydraulic static pressure loading system tray, in each water bag of two Water hydraulic static pressure loading system trays
In compartment, each pressure-producing part front end of bottom compression system, and each pressure-producing part front end of top compression system is all provided with
Pad 5 is equipped with, Water hydraulic static pressure loading system is made up of two groups of water bags, every group of water bag includes several water bags 6, is filled in each water bag 6
There is the water of certain volume, one of which water bag is fixed on bottom between 1 liang of curb girder 12 of test-bed main body loaded on just putting respectively
In some water bag compartments of Water hydraulic static pressure loading system tray, another group of water bag is fixed on the both sides of test-bed main body 1 loaded on inversion respectively
Between beam 12 in some water bag compartments of the Water hydraulic static pressure loading system tray on top, between each water bag and each pad 5, bottom is provided with
Steel plate 7, in the intracavity space of test-bed main body 1 between two groups of water bags, equipped with similarity model test model 9, analog material examination
The bottom and top of model 9 are tested, respectively between two groups of water bags 6, one layer of fexible film 10 is equipped with.
As shown in Figure 1, 2, each Water hydraulic static pressure loading system tray is by two angle steel 4 and vertical solid less than 61 quantity of every group of water bag
Determine dividing plate 8 is constituted, and two angle steel 4 are forward and backward parallel, and opening is inwardly set, and is separately fixed at 1 liang of curb girder 12 of test-bed main body
Between bottom or top, front and rear sides position, the base horizontal sides of two angle steel 4 constitute the bottom of each Water hydraulic static pressure loading system tray
Face, the gap between the bottom level side of two angle steel 4 constitutes the long rabbet 14 in the bottom surface centre position of each Water hydraulic static pressure loading system tray,
The side vertical edge of two angle steel 4 respectively constitutes the forward and backward face of each Water hydraulic static pressure loading system tray, less than 61 quantity of every group of water bag
Vertical stationary barrier 8 is uniformly distributed, is fixed in the base horizontal sides of two angle steel 4, if the space between two angle steel 4 is separated into
The dry independent water bag compartment for setting laterally side by side.Bottom compression system is by some hydraulic loadeds for just installing laterally side by side
Device or jack 3 are constituted；Top compression system is by some hydraulic pressure loading devices for being inverted setting laterally side by side or the structure of jack 3
Into.Each water bag 6 is rubber high-pressure gasbag.Each water bag 6 is shaped as planar water pillow shape, and its positive and negative is rectangle,
And it is provided with folding texture in front, side is square radiussed.The water filling port of each water bag 7 is self-closed type water filling port, or
It is the closed water filling port of strength glue sticking.Water filled with 2/3 volume in each water bag 6.In the front panel of test-bed main body 1
Between position watch window at poly (methyl methacrylate) plate is installed, and use steel plate, reinforced using 25 × 25 checkered manners.
This is used to simulate the non-homogeneous load testing machine of Water Inrush, in bottom of device, is pressurizeed by bottom compression system,
Some blocks of bottom steel plates 7 are passed to by several pads 5, some of Water hydraulic static pressure loading system one of which water bag are directly acted on
Individual water bag 6, each water bag 6 of this group of water bag directly acts on similarity model test model 9, is provided to similarity model test model 9
The artesian water hydraulic pressure environment of active.At the top of device, pressurizeed by top compression system, passed to by several pads 5 some
Block bottom steel plate 7, directly acts on several water bags 6 of another group of water bag of Water hydraulic static pressure loading system, and each water bag 6 of this group of water bag is straight
Connect and act on similarity model test model 9, the overburden pressure of active is provided to similarity model test model 9.
This is used for the experimental rig of Water Inrush simulated test, two groups of water bags and similarity model test of Water hydraulic static pressure loading system
The placement process of model 9 is：It is each first on some pressure-producing parts of bottom compression system that a pad 5 and one piece of bottom steel are set
After plate 7, it is fixed between 1 liang of curb girder 12 of test-bed main body in the Water hydraulic static pressure loading system tray of bottom just putting, arrangement hydraulic pressure adds
The one of which water bag of loading system；After the one of which water bag of Water hydraulic static pressure loading system is arranged, on this group of water bag, one is set
Layer fexible film 10；Analog material is laid layer by layer according still further to sets requirement, and is arranged in the analog material layer of regulation
The equipment such as pressure cell, displacement meter, these equipment are connected by data wire with computer, for collecting data, treat analog material
Reach after air-drying, that is, be built into similarity model test model 9；Then another layer is set on the top of similarity model test model 9 soft
Property film 10, then arrange another group of water bag.
Claims (7)
1. a kind of non-homogeneous load testing machine for simulating Water Inrush, including test bench system, loading system and survey
Test system, the test system includes pressure cell and displacement meter, and pressure cell and displacement meter are arranged in the analog material examination of experiment
Test model (9) internal, pressure cell and displacement meter are connected by data wire with computer, it is characterized in that：The test-bed system
System is made up of testing stand base (2), test-bed main body (1) and two Water hydraulic static pressure loading system trays, and test-bed main body (1) is the bottom of by
The closed frame structure of beam (11), back timber (13), two curb girders (12) and front and back panels composition, bottom girder (11) is mounted in testing stand bottom
On seat (2), positioned at the top of test-bed main body (1), two curb girders (12) are between bottom girder (11), back timber (13) for back timber (13)
Two help position, and front and back panels are separately fixed at the front and rear sides of test-bed main body (1), before test-bed main body (1)
Panel centre position is provided with watch window, and poly (methyl methacrylate) plate is installed at the watch window, and uses steel plate reinforcement, and each hydraulic pressure adds
Some independent water bag compartments are provided with loading system frame laterally side by side, the bottom surface centre position of each Water hydraulic static pressure loading system tray opens up
Have long rabbet (14), two Water hydraulic static pressure loading system trays are just being put respectively and inversion be fixed on the curb girder (12) of test-bed main body (1) two it
Between bottom and top；Loading system is made up of bottom compression system, top compression system and Water hydraulic static pressure loading system, bottom compression
System is placed in test-bed main body (1) inner chamber, in the space on bottom girder (11) top, some pressure-producing parts of bottom compression system by
The bottom surface long rabbet (14) for being fixed on the Water hydraulic static pressure loading system tray of bottom between the curb girder (12) of test-bed main body (1) two is just being put,
It is respectively protruding into some water bag compartments of the Water hydraulic static pressure loading system tray, top compression system is placed in test-bed main body (1)
Chamber, in the space of back timber (13) bottom, some pressure-producing parts of top compression system are fixed on test-bed main body (1) by being inverted
The bottom surface long rabbet (14) of the Water hydraulic static pressure loading system tray on top, is respectively protruding into the Water hydraulic static pressure loading system tray between two curb girders (12)
Some water bag compartments in, in each water bag compartment of two Water hydraulic static pressure loading system trays, each pressurization part of bottom compression system
Part front end, and each pressure-producing part front end of top compression system is provided with pad (5), and Water hydraulic static pressure loading system is by two groups of water
Bag composition, every group of water bag includes several water bags (6), the water filled with certain volume, one of which water bag in each water bag (6)
Respectively loaded on just putting some water bags for being fixed on the Water hydraulic static pressure loading system tray of bottom between the curb girder (12) of test-bed main body (1) two
In compartment, the hydraulic pressure that another group of water bag is fixed on top between the curb girder (12) of test-bed main body (1) two loaded on inversion respectively adds
In some water bag compartments of loading system frame, between each water bag and each pad (5), be provided with bottom steel plate (7), two groups of water bags it
Between test-bed main body (1) intracavity space in, equipped with similarity model test model (9), under similarity model test model (9)
Portion and top, respectively between two groups of water bags (6), are equipped with one layer of fexible film (10).
2. the non-homogeneous load testing machine for simulating Water Inrush according to claim 1, it is characterized in that：Each water
Pressure loading system frame is constituted by two angle steel (4) and less than the vertical stationary barrier (8) of (6) 1 quantity of every group of water bag, two angle steel
(4) it is forward and backward parallel, and opening inwardly set, and be separately fixed at the bottom between the curb girder (12) of test-bed main body (1) two or
Top, front and rear sides position, the base horizontal sides of two angle steel (4) constitute the bottom surface of each Water hydraulic static pressure loading system tray, two angle steel
(4) gap between bottom level side constitutes the long rabbet (14) in the bottom surface centre position of each Water hydraulic static pressure loading system tray, two jiaos
The side vertical edge of steel (4) respectively constitutes the forward and backward face of each Water hydraulic static pressure loading system tray, less than (6) 1 quantity of every group of water bag
Vertical stationary barrier (8) is uniformly distributed, is fixed in the base horizontal sides of two angle steel (4), by the space between two angle steel (4) point
It is divided into several independent water bag compartments for setting laterally side by side.
3. the non-homogeneous load testing machine for simulating Water Inrush according to claim 1 and 2, it is characterized in that：Bottom
Portion's compression system is made up of some hydraulic pressure loading devices for just installing laterally side by side or jack (3)；Top compression system by
Some hydraulic pressure loading devices or jack (3) for being inverted setting laterally side by side are constituted.
4. the non-homogeneous load testing machine for simulating Water Inrush according to claim 1 and 2, it is characterized in that：Respectively
Water bag (6) is rubber high-pressure gasbag.
5. the non-homogeneous load testing machine for simulating Water Inrush according to claim 1 and 2, it is characterized in that：Often
Individual water bag (6) is shaped as planar water pillow shape, and its positive and negative is rectangle, and is provided with folding texture in front, and side is in
Square fillet shape.
6. the non-homogeneous load testing machine for simulating Water Inrush according to claim 1 and 2, it is characterized in that：
Poly (methyl methacrylate) plate is installed at the watch window in the front panel centre position of test-bed main body (1), and uses steel plate, using 25 × 25
Checkered manner is reinforced.
7. the non-homogeneous load testing machine for simulating Water Inrush according to claim 1 and 2, it is characterized in that：Often
Water filled with 2/3 volume in individual water bag (6).
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