CN208012975U - Ultrahigh water filler creep test device - Google Patents
Ultrahigh water filler creep test device Download PDFInfo
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- CN208012975U CN208012975U CN201820115507.5U CN201820115507U CN208012975U CN 208012975 U CN208012975 U CN 208012975U CN 201820115507 U CN201820115507 U CN 201820115507U CN 208012975 U CN208012975 U CN 208012975U
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- maintainer
- load bar
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 239000000945 filler Substances 0.000 title claims abstract description 75
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000003801 milling Methods 0.000 claims description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
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- 239000000463 material Substances 0.000 abstract description 39
- 238000011049 filling Methods 0.000 abstract description 32
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- 230000000694 effects Effects 0.000 abstract description 14
- 239000011435 rock Substances 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 7
- 238000004088 simulation Methods 0.000 abstract description 7
- 239000003245 coal Substances 0.000 abstract description 6
- 238000005065 mining Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
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- 238000005452 bending Methods 0.000 description 4
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- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 229910010272 inorganic material Inorganic materials 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a kind of ultrahigh water filler creep test device, croop property when technical solution provided by the utility model is able to verify that long under ultrahigh water filler varying environment contractive condition provides test basis for the filling mining theory of practical engineering project.The utility model uses lever-loading principle, ultrahigh water filler sample is loaded for a long time using ballast box, the loading effect that ultrahigh water obturation is grown in simulation underground coal mine fill area overlying rock dead weight, the loading effect of overlying rock at simulation different buried depth is carried out by adjusting the counterweight of ballast box, the compressive deformation characteristics of simulation different surrounding rock condition obturation can be carried out in two kinds of cylinder bodies of hermetic type and semi-hermetic type, experimental basis is provided for the design of ultrahigh water Proportioning of filling materials.The experimental rig has loading environment adjustable, and without energy consumption, i.e. can reach module loads feature steadily in the long term.
Description
Technical field
The utility model belongs to coal mine filling production technique field, and in particular to a kind of ultrahigh water filler creep test
Device and its application method.
Background technology
Ultrahigh water material is a kind of two-component inorganic material, as the general each component of filler according to 6~8: 1 ratio of mud
Stirring pulping respectively is fed into goaf by dual circuit self-flowing pastefill after threeway and mixing tube mixing；Slurry mass concentration is
8.8%~14.2%, single cubic material consumption is small, as filler have rapid hardening, it is early strong, can long-distance sand transport, cost
Low outstanding advantage is more suitable as filling in mine mined material.And material ratio of mud compared with general concrete is larger,
There are more free waters inside adhesive bond, and under long-term pressured state, how material intensity after free water exudation changes,
The especially closed and semi-hermetic region in mine underground space, view volume variation and stand under load destroy situation to mining industry field well
Retrofilling success plays crucial effect, but due to the complexity of coal and rock geological conditions, and the concealment of filling engineering is existing
Field observation difficulty needs a large amount of financial resources and material resources.And indoor shortage efficiency test device and means fill to verify live ultrahigh water
Material filling is theoretical.
Therefore, it is badly in need of a kind of ultrahigh water filler creep test device of research and development and method, conclusion (of pressure testing) is building, public affairs
Filling mining theory provides foundation (under three) under (iron) road and water body.
Invention content
The purpose of this utility model is to overcome indoor shortage efficiency test devices in the prior art and means to verify
The theoretical problem defect of live ultrahigh water filler filling, and propose a kind of ultrahigh water filler creep test device and its
Application method.The conclusion (of pressure testing) that technical solution provided by the utility model is obtained is (three under building, public affairs (iron) road and water body
Under) filling mining theory offer foundation.The utility model utilizes lever-loading principle, and block is loaded to superelevation by prestowage difference
Water filler sample applies different pressures, reaches the overlying rock dead weight of simulation underground filling region and makees for a long time to high*.water packing body
With situation, ultrahigh water material sample is measured in closed and two kinds of environment compressive deformations of semi-hermetic and time using amesdial reading
Relationship.
To achieve the goals above, the utility model provides the following technical solutions：
A kind of ultrahigh water filler creep test device, the experimental rig include：Supporting rack, support frame as described above play branch
Support acts on；Load maintainer, the load maintainer are arranged in the upper end of support frame as described above, and the ultrahigh water filler is located at institute
State the inside of load maintainer；Load bar, the load bar are horizontally installed on the top of the load maintainer, and the load maintainer
Upper end contacted with the load bar；And the load bar passes through the first adjustable bolt and support frame as described above hinge-connection；Counterweight
Case, the ballast box is located at the lower section of the load bar, and the ballast box is cut with scissors by the second adjustable bolt and the load bar
Link；First adjustable bolt and second adjustable bolt are located at the both ends of the load bar, the load machine
Structure is between first adjustable bolt and second adjustable bolt；Deformation measuring device, the deformation measuring device are solid
It is scheduled on the upper end of support frame as described above, and the deformation measuring device is connect with the top of the load maintainer, for measuring
State the creep compliance of ultrahigh water filler；On the load bar, and first adjustable bolt and second adjustable bolt
It is both provided with groove milling at the position being connect respectively with the load bar；The load bar is i shaped steel, and the groove milling setting exists
On the edge of a wing of i shaped steel.
In experimental rig as described above, it is preferable that the load maintainer includes：Cylinder is loaded, the load cylinder is a cylinder
Structure, the ultrahigh water filler are located at the inside of the load cylinder；Plunger is loaded, a part for the load plunger is vertical
It is inserted into the load cylinder interior, and the end face of the load plunger lower end is filled with the ultrahigh water in the load cylinder
The upper surface of material contacts, and the load upper end portion is located at the external top position of the load cylinder, and the load column
The end face of end is contacted with the load bar beyond the Great Wall；Backing plate, the backing plate be located at it is described load cylinder bottom, and with the superelevation
The lower surface of water filler contacts.
In experimental rig as described above, it is preferable that the load maintainer is that semi-hermetic type load maintainer or hermetic type add
Mounted mechanism；The semi-hermetic type load maintainer is：The contact of the upper surface of the ultrahigh water filler and the load plunger
Position is sealed using sealing ring；The backing plate is porous disc；The lower end of the load cylinder and the backing plate are located at water storage box
Interior, the water storage box is used to collect the moisture of the ultrahigh water filler outflow；The hermetic type load maintainer is：It is described super
Upper surface, the lower surface of high water filling material are all made of sealing at the contact position for loading plunger and the backing plate respectively
Circle is sealed.
In experimental rig as described above, it is preferable that further include：It is arranged with a guide cylinder on the periphery of the load cylinder,
The bottom surface of the water storage box is provided with a pedestal.
In experimental rig as described above, it is preferable that the deformation measuring device is amesdial device；The deformation measurement dress
Set the top for being located at the load plunger with the deformation measuring device contact position of the load maintainer.
In experimental rig as described above, it is preferable that the distance between the load maintainer and first adjustable bolt are worth
It is worth less than the distance between the load maintainer and second adjustable bolt.
In experimental rig as described above, it is preferable that be both provided with the upper end of support frame as described above on the load bar
Through-hole, first adjustable bolt is vertical to be inserted into two through-holes being correspondingly arranged on the load bar and support frame as described above,
For by the load bar and support frame as described above hinge-connection, the load bar can be rotated using the load maintainer as fulcrum,
By adjusting the length of first adjustable bolt to keep the load bar to be in horizontality；First adjustable bolt
Lower part uses nut driving, for adjusting the distance between the load bar and support frame as described above, that is, is used to adjust described first
The size of the length value of adjustable bolt；In the opening for the through-hole of load bar setting penetrated for first adjustable bolt
Place is arranged to groove milling, convenient for first adjustable bolt end stablize be entrapped in the groove milling.
In experimental rig as described above, it is preferable that be both provided with the upper end of the ballast box on the load bar
Through-hole, in two through-holes being correspondingly arranged on the vertical insertion load bar of second adjustable bolt and the ballast box,
For by the load bar and the ballast box hinge-connection, different load counterweights can be carried out；Through-hole setting on the ballast box
Middle position in the upper end of the ballast box；The lower part of second adjustable bolt uses nut driving, for adjusting
The distance between the load bar and the ballast box are used to adjust the size of the length value of second adjustable bolt；
The opening for the through-hole of the load bar setting penetrated for second adjustable bolt is arranged to groove milling, is convenient for described second
What the end of adjustable bolt was stablized is entrapped in the groove milling.
In experimental rig as described above, it is preferable that further include：Between the load upper end portion and the load bar
It is additionally provided with a reinforcing bar, i.e., the described load plunger between the reinforcing bar and the load bar for line by contacting.
In experimental rig as described above, it is preferable that contacted with the load bar on the load bar and in the reinforcing bar
Groove milling is provided at position, the end of the reinforcing bar is located in the groove milling, is contacted with the load bar line convenient for the reinforcing bar
Stability is stronger.
Compared with the immediate prior art, technical solution provided by the utility model has the advantages that：
1, when technical solution provided by the utility model is able to verify that long under ultrahigh water filler varying environment contractive condition
Croop property, for filling mining theory provides test basis (under three) under building, public affairs (iron) road and water body.
2, the utility model uses lever-loading principle, to ultrahigh water filler sample for a long time add using ballast box
It carries, the loading effect that ultrahigh water obturation is grown in simulation underground coal mine fill area overlying rock dead weight, by adjusting ballast box
Counterweight carry out simulation different buried depth at overlying rock loading effect, can be carried out in two kinds of cylinder bodies of hermetic type and semi-hermetic type
The compressive deformation characteristics for simulating different surrounding rock condition obturation provide experimental basis for the design of ultrahigh water Proportioning of filling materials.It should
Experimental rig has loading environment adjustable, can reach module without energy consumption (without consuming water and electricity) and loads steadily in the long term
Feature.
3, the utility model read using deformation measuring device (amesdial) measure ultrahigh water material sample closed and
The relationship of semi-hermetic two kinds of environment compressive deformation and time.
4, the application method of the experimental rig provided by the utility model is simple for process, easy to operate.
Description of the drawings
Fig. 1 is ultrahigh water filler creep test device assembly structure diagram in the utility model embodiment.
Fig. 2 is the structural schematic diagram of adjustable bolt and load bar junction in the utility model embodiment.
Fig. 3 is the structural schematic diagram of semi-hermetic type load maintainer in the utility model embodiment；
Fig. 4 is the structural schematic diagram of hermetic type load maintainer in the utility model embodiment；
Fig. 5 is the load maintainer schematic diagram that sleeve and pedestal are provided in the utility model embodiment.
In figure：1- supporting racks；2- load maintainers；3- load bars；4- ballast boxes；5- deformation measuring devices；6- first is adjustable
Bolt；7- reinforcing bars；The second adjustable bolts of 8-；9- nuts；10- deformation measuring device contact positions；11- semi-hermetic types load machine
Structure；12- hermetic type load maintainers；13- loads plunger；14- loads cylinder；15- sealing rings；16- water storage boxes；17- cushion blocks；18- covers
Cylinder；19- pedestals；20- ultrahigh water fillers；21- groove millings.
Specific implementation mode
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained shall fall within the protection scope of the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that not conflicting
In the case of, the feature in the embodiments of the present invention and embodiment can be combined with each other.
As Figure 1-Figure 4, specific embodiment of the utility model provides a kind of ultrahigh water filler creep test dress
It sets, which includes：Supporting rack 1, supporting rack 1 play a supportive role；Load maintainer 2, load maintainer 2 are arranged in supporting rack 1
Upper end, ultrahigh water filler 20 is located at the inside of load maintainer 2；Load bar 3, load bar 3 are horizontally installed on load machine
The top of structure 2, and the upper end of load maintainer 2 is contacted with load bar 3；And load bar 3 passes through the first adjustable bolt 6 and supporting rack
1 hinge-connection；Ballast box 4, ballast box 4 is located at the lower section of load bar 3, and ballast box 4 passes through the second adjustable bolt 8 and load bar 3
Hinge-connection；First adjustable bolt 6 and the second adjustable bolt 8 are located at the both ends of load bar 3, and load maintainer 2 is located at first
Between adjustable bolt 6 and the second adjustable bolt 8；Deformation measuring device 5, deformation measuring device 5 are fixed on the upper end of supporting rack 1
Portion, and deformation measuring device 5 is connect with the top of load maintainer 2, for measuring ultrahigh water filler creep compliance.
Load maintainer 2 includes in specific embodiment of the utility model：Cylinder 14 is loaded, load cylinder 14 is a cylinder knot
Structure, ultrahigh water filler 20 are located at the inside of load cylinder 14.Plunger 13 is loaded, a part for load plunger 13 is inserted into load
Inside cylinder 14, and the end face for loading 13 lower end of plunger is contacted with the upper surface of the ultrahigh water filler 20 in load cylinder 14,
13 upper-end part of driving of plunger is loaded in the external top position of load cylinder 14, and loads end face and the load bar 3 of 13 upper end of plunger
Contact.Cushion block 17, cushion block 17 is located at 14 bottom of load cylinder, and is contacted with the lower surface of ultrahigh water filler 20.
Load maintainer 2 is semi-hermetic type load maintainer 11 or hermetic type load maintainer 12 in the utility model.Load
Cylinder 14 is divided to for closed and two kinds of environmental forms of semi-hermetic；Hermetic type filler sample upper and lower part loads cylinder 14 and load plunger
13, sealing ring 15 between cushion block 17 is housed, reach and air effect is fully sealed；Semi-hermetic type filler sample top loads cylinder 14
Sealing ring 15 is housed with load plunger 13, and lower part is equipped with porous disc (cushion block 17 be porous disc) and water storage box 16, reach it is permeable,
Seal gas acts on.Particular content is as follows：
In the present invention, as shown in figure 3, when load maintainer 2 is semi-hermetic type load maintainer 11, structure is：
The upper surface of ultrahigh water filler 20 and the contact position of load plunger 13 are sealed using sealing ring 15；Cushion block 17 is
Water plate；The lower end of load cylinder 14 is located in water storage box 16, and water storage box 16 is used to collect the moisture of the outflow of ultrahigh water filler 20,
To reach permeable, seal gas effect.Semi-hermetic type load maintainer 11 specifically refers to：Cylinder 14 is loaded, load cylinder 14 is one
Body structure, ultrahigh water filler 20 are located at the inside of load cylinder 14；Plunger 13 is loaded, a part for load plunger 13 is vertical to insert
Enter to load cylinder 14, and loads the upper table of the end face and the ultrahigh water filler 20 in load cylinder 14 of 13 lower end of plunger
Face contacts, and load 13 upper-end part of driving of plunger is in the top of load cylinder 14, and the end face for loading 13 upper end of plunger connects with load bar 3
It touches；Preferably, the deformation measuring device contact position 10 of deformation measuring device 5 and load maintainer 2 is located at the upper of load plunger 13
Portion；And load plunger 13 is sealed with 20 contact position of ultrahigh water filler using sealing ring 15.Cushion block 17, cushion block 17
Inside load cylinder 14, and contacted with the lower surface of ultrahigh water filler 20；Preferably, cushion block 17 is porous disc.Water storage box
16, the lower end of load cylinder 14 is located in water storage box 16, convenient for collecting the moisture of 20 outflow of ultrahigh water filler.
As shown in figure 4, when load maintainer 2 is hermetic type load maintainer 12, structure is：Ultrahigh water filler 20
Upper surface, lower surface are all made of sealing ring 15 with the contact position of load plunger 13 and cushion block 17 respectively and are sealed, to reach
To air, waterproof effect is fully sealed.Hermetic type load maintainer 12 specifically refers to：Cylinder 14 is loaded, load cylinder 14 is a cylinder
Structure, ultrahigh water filler 20 are located at the inside of load cylinder 14.Plunger 13 is loaded, a part for load plunger 13, which is inserted into, to be added
It carries inside cylinder 14, and the end face of 13 lower end of load plunger and the upper surface of the ultrahigh water filler 20 in load cylinder 14 connect
It touches, load 13 upper-end part of driving of plunger is in the top of load cylinder 14, and the end face for loading 13 upper end of plunger is contacted with load bar 3；
Preferably, deformation measuring device 5 is located at the top of load plunger 13 with the deformation measuring device contact position 10 of load maintainer 2；
And load plunger 13 and the contact position of ultrahigh water filler 20 are sealed using sealing ring 15.Cushion block 17, cushion block 17
Inside load cylinder 14, and contacted with the lower surface of ultrahigh water filler 20；Cushion block 17 connects with ultrahigh water filler 20
Position is touched to be sealed using sealing ring 15.
In a specific embodiment of the utility model, the cushion block 17 in hermetic type load maintainer 12 is preferably waterproof
Plate.
In another specific embodiment of the utility model, load cylinder 14 is preferably integrally formed U-shaped cylinder, and is not required to
Cushion block 17 is set, need not sealing ring 15 be set between cushion block 17 and ultrahigh water filler 20 can also reach and be fully sealed
Air, waterproof effect.
In the present invention, pedestal 19 is provided on supporting rack 1, load maintainer 2 can smoothly be placed on the pedestal 19
On, to load cylinder 14 play the role of positioning and it is fixed.It is further preferred that the utility model is in order to make load cylinder 14 have more preferably
Guiding role, load cylinder 14 outside also set up jacketed cylinder 18.It specifically refers to be arranged with one on the periphery of load cylinder 14 and lead
To cylinder, the bottom surface of water storage box 16 is provided with a pedestal 19.Preferably, the material of load maintainer 2 is made of stainless steel.This reality
Play the role of fixed load cylinder 14 with the pedestal 19 in novel, this is because test requirements document load cylinder 14 is can to move freely
, so as to can preferably toward load cylinder 14 inside add filling block mass；On the one hand the effect of sleeve 18 prevents load cylinder 14 in stress
Topple in the process, is on the other hand that better guiding role makes 14 Internal Experiment block uniform force of load cylinder in stress.Cause
This, sleeve 18 and pedestal 19 in the utility model can play the role of to load cylinder 14 carry out positioning and it is fixed.
In the present invention, as shown in figure 5, further including：It is also set up between load 13 upper end of plunger and load bar 3
There is a reinforcing bar 7, that is, loads plunger 13 by being contacted for line between reinforcing bar 7 and load bar 3.Preferably, on load bar 3 and
It is provided with groove milling 21 at reinforcing bar 7 and 3 contact position of load bar, the end of reinforcing bar 7 is located in the groove milling 21, convenient for reinforcing bar 7 and adds
The stability for carrying the contact of 3 line of bar is stronger.Select reinforcing bar 7 that can meet requirement of the experiment process to the strength of materials in the utility model,
And selection is convenient.Reinforcing bar 7 is to contact (to specifically refer to mill out one in 3 top planes of load bar by a groove with load bar 3
With the elongated slot of 7 diameter matches of reinforcing bar), it is desirable that it is removable, it is not that reinforcing bar 7 is welded on inside groove milling 21.In addition, also contemplate for by
The upper design of plunger 13 is loaded into pointed shape and then is fastened in the groove milling 21 on load bar 3, but considers pointed shape
Forced area is too small to stress concentration, may make to add because loading the temporary inclination of the arm of force (I-steel) in loading procedure
It carries plunger 13 to tilt, to cause experiment block unbalance stress, but is not in then problem using 7 long face contact of reinforcing bar.
Therefore, the utility model preferably uses the setting of reinforcing bar 7 between load plunger 13 and load bar 3.
In the present invention, deformation measuring device 5 is preferably amesdial device.Deformation measuring device 5 be amesdial and
It accommodates device (preferably magnetic dial gauge seat) composition, and the deflection reading by measuring sample is completed to the filler
Creep compliance monitors, the relationship for measuring 20 sample of ultrahigh water filler deflection and time under the effect of certain load.It is excellent
Selection of land, deformation measuring device 5 are located at the top of load plunger 13 with the deformation measuring device contact position 10 of load maintainer 2.
The measuring rod of amesdial is connect with load maintainer 2 in the utility model, to survey its deformation.Preferably, in load plunger 13
Top is additionally provided with a cross bar, and the measuring rod of amesdial and the beam contact, the measurement process of amesdial are：In filling block
After deformation, load plunger 13 will sink, and then load the measurement club head that the cross bar being arranged on plunger 13 will press amesdial
It is mobile, to read displacement data.
In the present invention, load cylinder 14 is arranged in certain on the right side of the adjustable bolt junction of supporting rack 1 and load bar 3
At torque arm length, loads the load column on cylinder 14 and contacted with 3 line of load bar by a reinforcing bar 7 to complete applying to load cylinder 14
Power；Ballast box 4 is located on the right side of load bar 3 at away from the certain torque arm length of adjustable bolt.Adjustable first adjustable bolt 6 and second can
The length of bolt 8 is adjusted, arm of force ratio (10: 1) is kept to be basically unchanged.By adjusting the different counterweights of ballast box 4, can meet not
It is tested with high water filling material compression creep deformation behaviour under stress condition.It specifically refers to：
The distance between load maintainer 2 and the first adjustable bolt 6 value are less than between load maintainer 2 and the second adjustable bolt 8
Distance value.
On load bar 3 and the upper end of supporting rack 1 is both provided with through-hole, the vertical insertion load of the first adjustable bolt 6
In two through-holes being correspondingly arranged on bar 3 and supporting rack 1, for by 1 hinge-connection of load bar 3 and supporting rack, load bar 3 can be to add
Mounted mechanism 2 is that fulcrum is rotated, by adjusting the length of the first adjustable bolt 6 to keep load bar 3 to be in horizontality.
Load maintainer 2 is to contact and (contacted by reinforcing bar line) with 3 line of load bar in the utility model, when load 14 inside filling block mass of cylinder
After deformation, one end of 4 place load bar of ballast box will sink, and then make its 3 weight of load bar by adjusting the first adjustable bolt 6
New balance is in the process that load bar 3 contacts the process rotated with the line on load maintainer 2.
It is further preferred that the lower part of the first adjustable bolt 6 is screwed using nut 9, for adjusting load bar 3 and supporting rack
The distance between 1, that is, it is used to adjust the size of the length value of the first adjustable bolt 6.More preferably, the use being arranged in load bar 3
It is arranged to groove milling 21 in the opening for the through-hole that the first adjustable bolt 6 penetrates, convenient for the card of the end stabilization of the first adjustable bolt 6
Enter in groove milling 21.
On load bar 3 and the upper end of ballast box 4 is both provided with through-hole, the vertical insertion load of the second adjustable bolt 8
In two through-holes being correspondingly arranged on bar 3 and ballast box 4, for by 4 hinge-connection of load bar 3 and ballast box, different add can be carried out
Carry counterweight.Preferably, the middle position in the upper end of ballast box 4 is arranged in the through-hole on ballast box 4, more conducively balances.It is excellent
The lower part of selection of land, the second adjustable bolt 8 is screwed using nut 9, for adjusting the distance between load bar 3 and ballast box 4, that is, is used
In the size for the length value for adjusting the second adjustable bolt 8.More preferably, it is worn for the second adjustable bolt 8 what load bar 3 was arranged
The opening of the through-hole entered is arranged to groove milling 21, convenient for the second adjustable bolt 8 end stablize be entrapped in groove milling 21.It is preferred that
Ground, ballast box 4 are made of steel plate.More preferably, more uniform in order to the power of application, the shape of ballast box 4 is square knot
Structure.
In the present invention, adjustable bolt is the first adjustable bolt 6 and the second adjustable bolt 8, adjustable bolt herein
Bolt top can shake, to provide space for 3 body of rod of load bar is unbalance；Bolt lower part screw top nut be can be with
It transfers manually, by transferring nut adjustable bolt length manually, while 3 body of rod of load bar can also be made to be in equilibrium state.
It is highly preferred that being hinge-connection between adjustable bolt top and load bar 3, can shake, adjustable bolt top
Structure specifically refer to：One nut is vertically arranged in bolt end, and a reinforcing bar or pin are across nut, to by adjustable bolt and add
It is hinge-connection to carry the connection between bar 3.More preferably, nut is fixed by welding in the upper end of adjustable bolt, to make steel
Muscle or pin are inserted into nut.
The material of supporting rack 1 is 16# channel steels in the utility model, and it is due to this reality that the utility model, which selects the channel steel material,
With the experimental rig being arranged under the novel basis based on lever principle, bending strength requirement, channel steel bending resistance fold resistance must satisfy
Preferably, final to determine the channel steel for selecting this model by repeatedly calculating counterweight and arm of force ratio.Supporting rack 1 is L-type structure support
Frame 1, L-type structure supporting rack 1 are made of column and pedestal two parts；The left part of pedestal and the lower end of column connect, load
Mechanism 2 and deformation measuring device 5 are arranged at the upper end of column.Supporting rack 1 be an integral molding structure or supporting rack 1 by
L-type structure supporting rack 1 is formed together with column and tube chamber welds with base.
Preferably, supporting rack 1 is welded by 16# channel steels in the present invention, is made of column and pedestal two parts,
Column is connect with top load bar 3 by the first adjustable bolt 6.
Since the bending resistance fracture resistance of i shaped steel is notable, it can meet and intensity is wanted during being tested in the utility model
It asks, and common straight panel was easy stress bending just now, influences the accuracy of test bit measurement, therefore the load bar in the utility model
3 structure is an i shaped steel.And the first adjustable bolt 6, the second adjustable bolt 8 and load maintainer 2 respectively with load bar 3
Groove milling 21 is arranged in the position of contact, and the setting of the groove milling 21 makes force and stress more stablize, and the numerical value tested out is more accurate,
As shown in Figure 2.In the utility model, i shaped steel is the i shaped steel of ordinary construction, i.e., by a web and two edge of a wing groups
At the groove milling 21 being arranged on load bar 3 in the utility model is arranged on the edge of a wing of i shaped steel.The load bar 3 and support
It is hinged with adjustable bolt between frame 1, can be rotated for fulcrum with loading plunger 13, adjust the length of adjustable bolt to keep loading
Bar 3 is substantially at horizontality.
The utility model measures creep of the deflection reading completion of sample to the filler by deformation measuring device 5
Amount monitoring, the relationship for measuring 20 sample of ultrahigh water filler deflection and time under the effect of certain load.Pass through tune
(when increasing counterweight block, load 13 inside filling block mass of cylinder starts stress deformation to the different counterweights of whole ballast box 4, loads column
Plug 13 sinks to drive amesdial gauge head to move, and difference is just the deformation values of filler before and after amesdial), it can meet not
It is tested with high water filling material compression creep deformation behaviour under stress condition.
In addition, in order to be better understood from the experimental rig of the utility model, the utility model also provides the experimental rig
Application method is as follows：
Step 1 estimates stress suffered by ultrahigh water filler 20 according to live coal seam buried depth；Using lever-loading principle,
It estimates stress suffered by ultrahigh water filler 20 and subtracts stress and then calculating of the load bar 3 to ultrahigh water filler 20
Determine the design counterweight of ballast box 4；Due to load bar 3 be I-steel and its have certain weight, have one to filling block mass material
Fixed stress, in order to more accurately test out the deformation of filling block mass material, the utility model is used to be filled with what is estimated
The suffered stress value of filling chock material subtracts load bar 3 and is only ballast box to the obtained numerical value after the stress of ultrahigh water filler 20
4 actually required counterweights.
Step 2 prepares ultrahigh water filler 20 according to the match ratio of ultrahigh water filler 20.It weighs respectively each
The weight of a component, and A material and B material siccatives are thoroughly mixed uniformly, it is designed by the ratio of mud and weighs amount of water, be added to A
It in material and B material, and stirs evenly respectively, mixed liquor is poured into after being again stirring for uniformly in load cylinder 14, and then natural curing is not to
Same age, (test block for different larval instar was required to test volume, carries out the deformation failure feelings of analysis and research filling block mass material
Condition)；
Step 3 is put into load plunger when the maintenance of ultrahigh water filler 20 expires in step 2 in load cylinder 14
It 13 and is contacted with ultrahigh water filler 20；Deformation measuring device 5 is installed later and reads initial reading；
Step 4 installs load bar 3 and ballast box 4, and adjusts the screw rod of the first adjustable bolt 6 and the second adjustable bolt 8
Length is in horizontality for adjusting load bar 3；
Then certain counterweight is applied to the classification of ballast box 4, while reads the reading on deformation measuring device 5, until counterweight
When reaching the design counterweight in step 1, then determine that load bar 3 is adjusted according to 20 compressive deformation situation of ultrahigh water filler
The 5 reading time interval time of whole situation and deformation measuring device.
Classification is carried out to ballast box 4 in the present invention and applies certain counterweight, classification herein apply specifically refer to again be
The process of one plus clump weight has finished a timing difference from starting to be added to design counterweight, while can also add in contrast to laboratory
Carry the process that instrument pressurizes to it by given pace to experiment block；This classification simultaneously applies whether weight process also allows for observation block
It destroys, if seriously being destroyed, needs to redesign material mixture ratio.
Classification applies weight when reaching design counterweight in the present invention, is then compressed according to ultrahigh water filler 20
Deformation come determine load bar 3 adjust situation and 5 reading time interval time of deformation measuring device, in particular to：Due to filling block
Body material (ultrahigh water filler) generates creep in stress always, and 3 body of rod of load bar is a constantly unbalance process, so
It needs constantly to be adjusted unbalance 3 body of rod of load bar in the experimentation, until the filling block mass material does not become
Until shape, only 3 body of rod of load bar balance just can guarantee the size (stress value is constant) of filling block mass material stress, but the filling
Rate of change can change in block materials creep process, as slow in changed apparent later stage variation early period, so will be according to circumstances
To be adjusted the balance of load bar 3.In addition, broken by measuring the filling block mass material experiment bulk deformation value and variation
Bad situation come determine underground coal mine under conditions of the experimental simulation needed for filler proportioning, determine the filling block mass material
The intensity of material, and filling block mass material is grasped in the ultimate deformation value that do not destroy, and then determine the filling block mass material
Whether material and proportioning meet underground filling engine request.
In conclusion the utility model also has the following technical effect that：
(1) it is compacted under closed and part-obturated situation can to carry out ultrahigh water filler 20 for the experimental rig of the utility model
Become experiment.
(2) the utility model uses lever-loading principle, and experimental rig makes simply, easy to use.
(3) experimental rig of the utility model does not need the resource consumptions such as water, electricity, it can be achieved that high*.water packing material at the trial
Material carries out 0~15MMa creep tests under closed and part-obturated situation.
(4) the utility model connects with load bar 3 respectively in the first adjustable bolt 6, the second adjustable bolt 8 and load maintainer 2
Groove milling 21 is arranged in tactile position, and the setting of the groove milling 21 makes force and stress more stablize, and the numerical value tested out is more accurate.It should
It is hinged with adjustable bolt between load bar 3 and supporting rack 1, can be rotated for fulcrum with loading plunger 13, adjust adjustable bolt
Length is to keep load bar 3 to be substantially at horizontality.
(5) the utility model measures the deflection reading completion of sample to the filler by deformation measuring device 5
Creep compliance monitors, the relationship for measuring 20 sample of ultrahigh water filler deflection and time under the effect of certain load.It is logical
The different counterweights for crossing adjustment ballast box 4, can meet ultrahigh water filler compression creep deformation behaviour under different stress conditions
Experiment.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, in the pending power of the utility model
Within the scope of profit is claimed.
Claims (10)
1. a kind of ultrahigh water filler creep test device, which is characterized in that the experimental rig includes：
Supporting rack, support frame as described above play a supportive role；
Load maintainer, the load maintainer are arranged in the upper end of support frame as described above, and the ultrahigh water filler is located at described
The inside of load maintainer；
Load bar, the load bar are horizontally installed on the top of the load maintainer, and the upper end of the load maintainer and institute
State load bar contact；And the load bar passes through the first adjustable bolt and support frame as described above hinge-connection；
Ballast box, the ballast box are located at the lower section of the load bar, and the ballast box by the second adjustable bolt with it is described
Load bar hinge-connection；First adjustable bolt and second adjustable bolt are located at the both ends of the load bar, institute
Load maintainer is stated between first adjustable bolt and second adjustable bolt；
Deformation measuring device, the deformation measuring device are fixed on the upper end of support frame as described above, and the deformation measuring device
It is connect with the top of the load maintainer, the creep compliance for measuring the ultrahigh water filler；
On the load bar, and first adjustable bolt and second adjustable bolt are connect with the load bar respectively
Groove milling is both provided at position；The load bar is i shaped steel, and the groove milling is arranged on the edge of a wing of i shaped steel.
2. experimental rig as described in claim 1, which is characterized in that the load maintainer includes：
Cylinder is loaded, the load cylinder is a tube structure, and the ultrahigh water filler is located at the inside of the load cylinder；
Plunger is loaded, a part for the load plunger is inserted vertically into the load cylinder interior, and the load plunger lower end
The end face in portion is contacted with the upper surface of the ultrahigh water filler in the load cylinder, and the load upper end portion is located at
The external top position of the load cylinder, and the end face in the load upper end portion is contacted with the load bar；
Backing plate, the backing plate are located at the bottom of the load cylinder, and are contacted with the lower surface of the ultrahigh water filler.
3. experimental rig as claimed in claim 2, which is characterized in that the load maintainer be semi-hermetic type load maintainer or
Hermetic type load maintainer；
The semi-hermetic type load maintainer is：The contact position of the upper surface of the ultrahigh water filler and the load plunger
It is sealed using sealing ring；The backing plate is porous disc；The lower end of the load cylinder and the backing plate are located in water storage box, institute
State moisture of the water storage box for collecting the ultrahigh water filler outflow；
The hermetic type load maintainer is：The upper surface of the ultrahigh water filler, lower surface respectively with the load plunger
It is sealed with sealing ring is all made of at the contact position of the backing plate.
4. experimental rig as claimed in claim 3, which is characterized in that further include：
It is arranged with a guide cylinder on the periphery of the load cylinder, the bottom surface of the water storage box is provided with a pedestal.
5. experimental rig as claimed in claim 2, which is characterized in that the deformation measuring device is amesdial device；
The deformation measuring device contact position of the deformation measuring device and the load maintainer is located at the upper of the load plunger
Portion.
6. experimental rig as described in claim 1, which is characterized in that between the load maintainer and first adjustable bolt
Distance value less than the distance between the load maintainer and second adjustable bolt be worth.
7. experimental rig as described in claim 1, which is characterized in that on the load bar and the upper end of support frame as described above
It is both provided with through-hole, two be correspondingly arranged on first adjustable bolt vertical the insertion load bar and support frame as described above
In through-hole, for by the load bar and support frame as described above hinge-connection, the load bar can be clicked through by branch of the load maintainer
Row rotation, by adjusting the length of first adjustable bolt to keep the load bar to be in horizontality；
The lower part of first adjustable bolt use nut driving, for adjust between the load bar and support frame as described above away from
From, that is, be used for adjust first adjustable bolt length value size；
It is arranged to groove milling in the opening for the through-hole of load bar setting penetrated for first adjustable bolt, is convenient for institute
State being entrapped in the groove milling for the end stabilization of the first adjustable bolt.
8. experimental rig as described in claim 1, which is characterized in that on the load bar and the upper end of the ballast box
It is both provided with through-hole, two be correspondingly arranged on the vertical insertion load bar of second adjustable bolt and the ballast box
In through-hole, for by the load bar and the ballast box hinge-connection, different load counterweights can be carried out；
The middle position in the upper end of the ballast box is arranged in through-hole on the ballast box；
The lower part of second adjustable bolt use nut driving, for adjust between the load bar and the ballast box away from
From, that is, be used for adjust second adjustable bolt length value size；
It is arranged to groove milling in the opening for the through-hole of load bar setting penetrated for second adjustable bolt, is convenient for institute
State being entrapped in the groove milling for the end stabilization of the second adjustable bolt.
9. experimental rig as described in claim 1, which is characterized in that further include：
A reinforcing bar is additionally provided between the load upper end portion and the load bar, i.e., the described load plunger passes through institute
It states and is contacted for line between reinforcing bar and the load bar.
10. experimental rig as claimed in claim 9, which is characterized in that on the load bar and the reinforcing bar with it is described
Groove milling is provided at load bar contact position, the end of the reinforcing bar is located in the groove milling, convenient for the reinforcing bar and the load
The stability of bar line contact is stronger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820115507.5U CN208012975U (en) | 2018-01-15 | 2018-01-15 | Ultrahigh water filler creep test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820115507.5U CN208012975U (en) | 2018-01-15 | 2018-01-15 | Ultrahigh water filler creep test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208012975U true CN208012975U (en) | 2018-10-26 |
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ID=63884235
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| CN201820115507.5U Expired - Fee Related CN208012975U (en) | 2018-01-15 | 2018-01-15 | Ultrahigh water filler creep test device |
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| CN (1) | CN208012975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967469A (en) * | 2019-12-25 | 2020-04-07 | 河南理工大学 | Simulation test system suitable for ecological restoration of mine |
-
2018
- 2018-01-15 CN CN201820115507.5U patent/CN208012975U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967469A (en) * | 2019-12-25 | 2020-04-07 | 河南理工大学 | Simulation test system suitable for ecological restoration of mine |
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