CN206419053U - A kind of working face wall flexibility reinforces the loading system of experiment - Google Patents
A kind of working face wall flexibility reinforces the loading system of experiment Download PDFInfo
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- CN206419053U CN206419053U CN201621159237.5U CN201621159237U CN206419053U CN 206419053 U CN206419053 U CN 206419053U CN 201621159237 U CN201621159237 U CN 201621159237U CN 206419053 U CN206419053 U CN 206419053U
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Abstract
The utility model discloses the loading system that a kind of working face wall flexibility reinforces experiment, including testing stand, loading system, described loading system by jack, loading crossbeam and hydraulic pressure pump group into, jack is arranged on above loading crossbeam, hydraulic pump is connected by hydraulic connecting pipe and jack, and loading crossbeam is arranged on the rack beam of hydraulic support；Hydraulic support fixes bottom plate by rack beam, support support post, support and bracket adjustment device is constituted, support bottom plate is connected with testing stand table top, support support force advocates peace bracket adjustment device on the support bottom plate, and support support force is advocated peace to be connected with rack beam at the top of bracket adjustment device respectively；Loading system is between the upper cross-beam belonging to hydraulic support crossbeam and testing stand；The width and depth of coal wall caving can be determined for accurate and effective, slip casting relevant parameter administers coal wall caving for scene and provides guidance.
Description
Technical field
The utility model is related to a kind of flexible reinforcing experimental system, more particularly to the width and depth for determining coal wall caving
A kind of working face wall flexibility of degree and slip casting relevant parameter reinforces the loading system of experiment, and the utility model belongs to stope rib
Wall caving laboratory experiment field.
Background technology
In process of coal mining, generally existing coal wall caving problem（Wall caving refers to during coal mining, mine operation face,
Tunnel side wall is deformed under pressure so that the process that a part of coal body is peeled off from rib to working face）, as roof fall into
To influence the principal element of production safety.
In coal mine large-mining-height working surface, soft seam working face, rise mining working face and deep mining working face, rib
Wall caving is particularly problematic, and coal wall caving not only influences whether being normally carried out for safety in production, while also can be to work in stope
The personal safety of people causes serious threat.Therefore, rib stability control is the emphasis of Coal Face with Greater Mining Height Surrounding Rock Control.
Application number:CN201410769492.0, utility model title：A kind of working face wall stability control simulation is real
Platform and application process are tested, it is open（Bulletin）Day:2015.03.25, disclose a kind of working face wall stability control simulation real
Platform and application process are tested, compared with prior art, it uses flat in theory analysis and numerical simulation and a small amount of two dimension
On the physical model of face, seldom it is related to by each factor analysis to coal wall caving, is determined by experiment flexible Reinforcing parameter.Base
In above-mentioned situation, in the urgent need to a kind of working face wall flexibility reinforces the loading system of experiment, reach and accurately measure rib stabilization
Property and the relation between mining height, coal mass strength, hydraulic support working resistance, roof pressure, by the change of each parameter of flexible grout,
The measure of control rib stability is drawn, is that coal wall caving is administered at scene, realizes that coal-face safety and high efficiency is provided real
Test guidance.
Traditional experimental provision, due to without loading system or using the loading system of other manner, causing coal during experiment
Wall reinforces difficult, or because the firmly degree of reinforcing is improper, last experimental data distortion occurs.
Utility model content
The purpose of this utility model is to provide the loading system that a kind of working face wall flexibility reinforces experiment, and the program is being ground
Study carefully between rib stability and mining height, coal mass strength, hydraulic support working resistance, roof pressure on the basis of relation, pass through adjustment
The loading force of loading system, draws the effective measures of control coal wall caving to improve defect present in known technology.
To achieve the above object, a kind of working face wall flexibility that the utility model is provided reinforces the loading system of experiment,
Including experimental bench, loading system, described loading system be arranged on hydraulic support crossbeam and upper cross-beam belonging to testing stand it
Between.
Described hydraulic loading system 2 is made up of jack 3, loading crossbeam 4 and hydraulic pump 5, and described jack 3 is installed
In the top of loading crossbeam 4, hydraulic pump 5 is connected by hydraulic connecting pipe and jack 3, and described loading crossbeam 4 is arranged on hydraulic pressure
On the rack beam of support 9.
Described hydraulic support 9 fixes bottom plate and bracket adjustment device group by rack beam, support support post, support
Into support bottom plate is connected with the table top of testing stand 1, and support support force advocates peace bracket adjustment device on support bottom plate, support
Support force is advocated peace to be connected with rack beam at the top of bracket adjustment device respectively.
Using the technical solution of the utility model, loading system is acted on rib, for simulating roof pressure, according to reality
The outlet pressure of required actual conditions when testing, in real time adjustment hydraulic pump, so that jack transmits required loading by push rod
Power is to loading system, and rib is obtained after active force, during other experiment such as slip castings, is unlikely to experimental data distortion occur
The problem of.
Hydraulic loading system of the present utility model is by jack, loading crossbeam and hydraulic pressure pump group into described jack is pacified
Above loading crossbeam, hydraulic pump is connected by hydraulic connecting pipe and jack, and described loading crossbeam is arranged on hydraulic pressure branch
On the rack beam of frame, by jack and hydraulic pump, it can be pressurizeed to hydraulic pressure support, it is ensured that the stress support of rib.
Hydraulic support of the present utility model fixes bottom plate by rack beam, support support post, support and bracket adjustment is filled
Composition is put, support bottom plate is connected with testing stand table top, support support force advocates peace bracket adjustment device on support bottom plate, branch
Frame support force is advocated peace to be connected with rack beam at the top of bracket adjustment device respectively, can preferably operate relevant device.
In summary, loading system and the experiment side of experiment are reinforced using a kind of working face wall flexibility of the present utility model
Method can accurately measure the relation between rib stability and mining height, coal mass strength, hydraulic support working resistance, roof pressure, lead to
The change of each parameter of flexible grout is crossed, the measure of control rib stability is drawn, is that coal wall caving is administered at scene, realizes coal-getter
Make face safety and high efficiency and experiment instruction is provided.
The utility model has simple to operation, can safely, effectively, economically determine to control the flexible reinforcing of coal wall caving
Parameter, by indoor Physical Experiment can effectively instruct field practice work in coal wall caving governing problem, with pushing away well
Wide application prospect.
Brief description of the drawings
Fig. 1 is the loading system schematic diagram that a kind of working face wall flexibility reinforces experiment；
Fig. 2 is the experimental bench schematic diagram for the loading system that a kind of working face wall flexibility reinforces experiment；
Fig. 3 is the loading system schematic diagram for the loading system that a kind of working face wall flexibility reinforces experiment；
Label symbol explanation in accompanying drawing：
1 experimental bench；2 loading systems；3 jack；4 loading crossbeams；5 hydraulic pumps；6 hydraulic supports.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The loading system that a kind of working face wall flexibility of the present utility model reinforces experiment is main by the following technical programs
Realize, reference picture 1,2,3 pairs of embodiments of the present utility model are illustrated：
A kind of working face wall flexibility reinforces the loading system of experiment, by experimental bench 1, loading system 2, jack 3, loading
Crossbeam 4, hydraulic pump 5, hydraulic support 6.
Loading system 2 is between the upper cross-beam belonging to the crossbeam of hydraulic support 6 and testing stand 1；Hydraulic loading system 2
It is made up of jack 3, loading crossbeam 4 and hydraulic pump 5, described jack 3 is arranged on the top of loading crossbeam 4, hydraulic pump 5 passes through
Hydraulic connecting pipe and jack 3 are connected, and described loading crossbeam 4 is arranged on the rack beam of hydraulic support 6.
Hydraulic support 6 fixes bottom plate by rack beam, support support post, support and bracket adjustment device is constituted, support
Bottom plate is connected with the table top of testing stand 1, and support support force advocates peace bracket adjustment device on support bottom plate, and support support is advocated
Connected respectively with rack beam with bracket adjustment device top.
During experiment, experimental bench 1 is used for the actual coal seam for simulating live colliery, realizes the shaping of rib, true by graduated scale
Coal is simulated by certain similar proportion in the fixed height to be simulated coal seam, coal seam with conventionally used sand, gypsum, lime, water
Body material, after coal body shaping, hydraulic support 6 is placed in front of rib, to rib formation protective effect, in hydraulic support 6
Loading crossbeam 4 is placed in top, and jack 3 is placed in the middle of the crossbeam of loading crossbeam 4 and the top of experimental bench 1, made by hydraulic pump 5
The pressurization to rib is realized in the pressure increase of jack 3, actual seam roof pressure is simulated, with the increase of pressure, rib
, there is crack in rib first in bad stability, and the change of crack length is measured by graduated scale, is measured and split with crack meter
The change of gap width, crack ultimately results in the generation of coal wall caving, and the change of coal wall caving width is now determined with graduated scale, swashs
Optar measures the change in depth of coal wall caving in loading procedure on the basis of the rear of hydraulic support 6.By changing simulation coal
Layer height, similar material mixture, jack on-load pressure, hydraulic support working resistance, you can draw rib stability without soft
Property reinforce under the conditions of relation between mining height, coal mass strength, hydraulic support working resistance, roof pressure.
After the Physical Experiment under the conditions of completing to reinforce without flexibility every time, to match somebody with somebody with last time experiment identical material
Than, on the basis of mining height, hydraulic support working resistance, jack on-load pressure, pass through to drill in rib and place flexible reinforce
Anchor pole, slip casting in anchor pole is reinforced with grouting pump toward flexibility, completes to reinforce the flexibility of rib.After being reinforced to rib flexibility,
Jack 3 is pressurizeed by hydraulic pump 5, completed by graduated scale, crack meter, laser range finder to crack in loading procedure
The variation monitoring work of length, width and coal wall caving width, depth, by changing flexible reinforcing anchor pole position, quantity and liquid
Grouting pressure, the grouting amount of press pump, draw rib stability and the variation relation of flexible Reinforcing parameter, steady to solve live rib
Qualitative question provides effective control measure.
As described above, the embodiment to utility model is explained, as long as but essentially without disengaging originally
The utility model point and effect of utility model, belong to infringement, and the utility model can have many deformations, and this is to this area
It is obvious for technical staff.Therefore, such variation be also integrally incorporated in protection domain of the present utility model it
It is interior.
Claims (1)
1. a kind of working face wall flexibility reinforces the loading system of experiment, including testing stand（1）, loading system (2), its feature exist
In：Described loading system (2) is by jack（3）, loading crossbeam（4）And hydraulic pump（5）Composition, described jack（3）Peace
Mounted in loading crossbeam（4）Top, hydraulic pump（5）By hydraulic connecting pipe and jack（3）Connection, described loading crossbeam（4）
On the rack beam of hydraulic support (6)；Described hydraulic support (6) is solid by rack beam, support support post, support
Determine bottom plate and bracket adjustment device composition, support bottom plate and testing stand（1）Table top connect, support support force advocate peace bracket adjustment dress
Put on the support bottom plate, support support force is advocated peace to be connected with rack beam at the top of bracket adjustment device respectively；Described adds
Loading system (2) is arranged on hydraulic support (6) crossbeam and testing stand（1）Between affiliated upper cross-beam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159237.5U CN206419053U (en) | 2016-11-01 | 2016-11-01 | A kind of working face wall flexibility reinforces the loading system of experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159237.5U CN206419053U (en) | 2016-11-01 | 2016-11-01 | A kind of working face wall flexibility reinforces the loading system of experiment |
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| Publication Number | Publication Date |
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| CN206419053U true CN206419053U (en) | 2017-08-18 |
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| CN201621159237.5U Active CN206419053U (en) | 2016-11-01 | 2016-11-01 | A kind of working face wall flexibility reinforces the loading system of experiment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360356A (en) * | 2021-12-14 | 2022-04-15 | 中国矿业大学(北京) | Flying refuse experiment table |
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2016
- 2016-11-01 CN CN201621159237.5U patent/CN206419053U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360356A (en) * | 2021-12-14 | 2022-04-15 | 中国矿业大学(北京) | Flying refuse experiment table |
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