CN208606799U - Multi-parameter monitoring devices for roadway surrounding rock - Google Patents
Multi-parameter monitoring devices for roadway surrounding rock Download PDFInfo
- Publication number
- CN208606799U CN208606799U CN201821173441.1U CN201821173441U CN208606799U CN 208606799 U CN208606799 U CN 208606799U CN 201821173441 U CN201821173441 U CN 201821173441U CN 208606799 U CN208606799 U CN 208606799U
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- China
- Prior art keywords
- cable
- expanding cement
- foil gauge
- cement cylinder
- surrounding rock
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of multi-parameter monitoring devices for roadway surrounding rock, monitoring assembly includes expanding cement cylinder, dual wire cannon born frame, foil gauge and cable, dual wire cannon born frame and foil gauge are in expanding cement cylinder, dual wire cannon born frame includes metal tube and connecting branch, two metal tubes are arranged in double helix, it is fixedly connected between two metal tubes by multiple connecting branches, multiple foil gauges are separately fixed on multiple connecting branches and are mutually perpendicular between adjacent foil gauge, one end of cable is protruded into expanding cement cylinder and each battery core of cable is correspondingly connected with each foil gauge lead respectively, the other end of cable passes through dual wire cannon born frame and draws from the end of expanding cement cylinder；Rangefinder is fixed on the end of expanding cement cylinder outgoing cable.It can carry out stress, deformation, displacement and absciss layer situation real-time monitoring to same position country rock simultaneously, so that staff be enable accurately to judge surrounding rock stability.
Description
Technical field
The utility model relates to a kind of monitoring device, specifically a kind of multi-parameter monitoring devices for roadway surrounding rock.
Background technique
China's mine overwhelming majority belongs to well industrial and mineral, universal with mechanical mining, and underworkings quantity increases and greatly
Section development trend is obvious.As road, water conservancy, civil engineering are built, tunnel, number of lanes sharply increased.Tunnel, tunnel
Country rock locating for complicated work condition environment, lead to stress inside country rock, deformation, destroy situation and constantly change, adjoining rock stability situation
Also change therewith.However, causing country rock to become due to the shortcoming and limitation of concealment and existing mating monitoring means inside country rock
Shape, destruction and stability can not effectively be known, roadway surrounding rock Frequent Accidents are caused.If can know the stress of country rock at any time, become
Shape, displacement, absciss layer data and its variation tendency, thus to the supporting of country rock, deformation, convergence and the steadiness science of making
Judgement, and reasonable counter-measure is taken, the incidence of this class surrounding rock accident can be substantially reduced, life and property damage are reduced
It loses.
Currently, several physical quantitys as criterion of rock stability --- stress, deformation, displacement and absciss layer, measuring device
It substantially belongs to mechanically, palpus manual operation, reading etc. can not form the intelligence system of automatic monitoring；It is single to monitor physical quantity,
Knowing for several physical quantitys cannot be realized simultaneously, cannot effectively analyze and determine the steadiness of country rock.It is that measurement carries with anchor pole
Body, the method for straining using foil gauge measurement anchor stress and then finding out surrouding rock stress strain, since anchor pole limitation itself causes
Foil gauge setting quantity is extremely limited, and is difficult overall length, high density measurement；It is measurement carrier with anchor pole, is surveyed using fiber grating
Although the highdensity measurement of method energy of amount, its somewhat expensive, and optical fiber is more fragile, fracture easy to damage.In addition with anchor pole
Perception is unable to measure to the absciss layer destruction of country rock to measure the measurement method of carrier, and roof separation indicator can measure absciss layer, but tie
Structure is complicated, volume is larger and can not monitor other physical quantitys simultaneously；Roof and floor, two help the determination of relative shift to be also simultaneously
By mechanical manual measurement, so that the inefficiency of measurement, above-mentioned various devices cannot accurately carry out multi-parameter in real time
Monitoring.
Summary of the invention
In view of the above-mentioned problems of the prior art, the utility model provides a kind of multi-parameter monitoring for roadway surrounding rock
Device, structure is simple, compact, is easily installed uses, can simultaneously to same position country rock progress stress, deformation, displacement and
The real-time monitoring of absciss layer, so that staff be enable accurately to judge surrounding rock stability.
To achieve the goals above, the technical solution adopted in the utility model is: a kind of multi-parameter for roadway surrounding rock
Monitoring device, including monitoring assembly and rangefinder,
The monitoring assembly includes expanding cement cylinder, dual wire cannon born frame, foil gauge and cable, the double helix
Metal tube skeleton and foil gauge are in expanding cement cylinder, and dual wire cannon born frame includes two metal tubes and multiple companies
Branch pipe is connect, two metal tubes are arranged in double helix, are fixedly connected between two metal tubes by multiple connecting branches, the strain
Piece be it is multiple, multiple foil gauges are separately fixed on multiple connecting branches and are mutually perpendicular between adjacent foil gauge, the one of cable
End is protruded into expanding cement cylinder, and each battery core in cable connects one to one with each foil gauge lead respectively, cable
The other end pass through dual wire cannon born frame from the end of expanding cement cylinder draw；
The rangefinder is fixed on the end of expanding cement cylinder outgoing cable.
Further, the foil gauge is encapsulated in stainless steel thin slice.Foil gauge can be played using stainless steel thin slice encapsulation
Preferable protective action.
Further, the rangefinder is laser range finder.Change in displacement feelings can more accurately be measured using laser range finder
Condition.
Further, the expanding cement that the expanding cement cylinder uses is as identical as the rock property of installation place as possible.It adopts
The expanding cement similar in this property forms close integral structure, companion after monitoring assembly is installed to country rock, with country rock
The synchronous deformation of country rock, absciss layer；Foil gauge in expanding cement monitoring assembly sufficiently perceives the strain of each depth of country rock, by answering
Corresponding stress is calculated in stress-strain relationship, to realize the monitoring of country rock internal stress, strain.
Compared with prior art, the utility model combines mode using monitoring assembly and rangefinder, and specific advantage is as follows:
(1) the country rock multifunctional monitoring apparatus structure of the utility model is simple, and measurement accuracy is high.By being answered in monitoring assembly
Become piece measurement country rock internal stress, strain and separating location, helps relative displacement using laser range finder measurement roof and floor, two, two
Person, which combines, calculates absciss layer amount and country rock external displacement amount inside country rock；
(2) the country rock physical quantity data (i.e. stress, strain, displacement and absciss layer) monitored by the utility model can be analyzed
The status and trend of surrounding rock supporting, convergence, steadiness are obtained, judge surrounding rock stability and takes counter-measure, to drop
Low country rock accident rate reduces casualties and property loss；
(3) in the country rock multifunctional monitoring device of the utility model, monitoring assembly is disposably installs and uses, but its cost
It is cheap, external amplification output loop, laser range finder can repeated multiple times dismounting use, to make the average annual use of total system
Cost is very low；
(4) the utility model internal structure is mainly foil gauge and cable and its protective layer, inside country rock point position and
Quantity selection is flexible and changeable, and precision is high, and it is convenient to lay；
(5) the dual wire cannon born frame in the utility model protects cable not by damage, when surrounding rock separation layer double spiral shells
Rotation metal tube skeleton has larger free elongation in the axial direction of expanding cement cylinder, and since inside cable pine formula is laid with,
So as to ensure that inside cable is not pulled off, signal still can normal transmission.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the longitudinal sectional drawing of the utility model；
Fig. 3 is the transverse cross-sectional view of foil gauge position in the utility model；
Fig. 4 is the structural schematic diagram of dual wire cannon born frame in the utility model；
Fig. 5 is integral position artwork when the utility model is used；
Fig. 6 is scheme of installation of the utility model in country rock.
In figure: 1, monitoring assembly, 1-1, dual wire cannon born frame, 1-1-1, metal tube, 1-1-2, connecting branch, 1-2,
Foil gauge, 1-3, cable, 1-4, expanding cement cylinder, 2, rangefinder.
Specific embodiment
The utility model is described in further detail below.
As shown, a kind of multi-parameter monitoring devices for roadway surrounding rock, including monitoring assembly 1 and rangefinder 2,
The monitoring assembly 1 includes expanding cement cylinder 1-4, dual wire cannon born frame 1-1, foil gauge 1-2 and cable
1-3, the dual wire cannon born frame 1-1 and foil gauge 1-2 are in expanding cement cylinder 1-4, dual wire cannon born
Frame 1-1 includes two metal tube 1-1-1 and multiple connecting branch 1-1-2, and two metal tube 1-1-1 are arranged in double helix, and two
It is fixedly connected between metal tube 1-1-1 by multiple connecting branch 1-1-2, the foil gauge 1-2 is multiple, multiple foil gauge 1-
2 are separately fixed on multiple connecting branch 1-1-2 and are mutually perpendicular between adjacent foil gauge 1-2, and one end of cable 1-3 is protruded into swollen
In swollen cement cylinder 1-4, and each battery core in cable 1-3 connects one to one with each foil gauge 1-2 lead respectively, cable
The other end of 1-3 passes through dual wire cannon born frame 1-1 and draws from the end of expanding cement cylinder 1-4；
The rangefinder 2 is fixed on the end of expanding cement cylinder 1-4 outgoing cable 1-3.
Further, the foil gauge 1-2 is encapsulated in stainless steel thin slice.
Further, the rangefinder 2 is laser range finder.
Further, the expanding cement that the expanding cement cylinder 1-4 is used is as identical as the rock property of installation place as possible.
The utility model the preparation method comprises the following steps:
A, dual wire cannon born frame 1-1 is made:
According to service life, the metal tube 1-1-1 and connecting branch 1-1-2 of work condition environment selection suitable material, two gold
Belong to pipe 1-1-1 and isometrical equidistant double helix is coiled into 90 °~180 ° of offset angular, specific screw pitch and offset angular are answered according to arrangement
Become piece 1-2 density and be adjusted determination, supports two metal tube 1-1-1 with multiple connecting branch 1-1-2 connections radial；
B, production encapsulation foil gauge 1-2, and the position positioning cable 1-3:
Foil gauge 1-2 is pasted onto Thin Stainless Steel on piece, damp-proof treatment is carried out to the surface of stainless steel thin slice, by foil gauge
1-2 lead is connected with cable 1-3, and stainless steel thin slice folding is then made to encase foil gauge 1-2, is positioned at double spiral shells with wire connection
On the connecting branch 1-1-2 for revolving metal tube skeleton 1-1, finally by the cable 1-3 being connect with each foil gauge 1-2 lead from double spiral shells
It revolves metal tube skeleton 1-1 and passes through extraction；
C, various types expanding cement is made:
The country rock of required monitoring is classified by stability, is then made with every kind of classification country rock physical property as far as possible
Identical expanding cement, and work out cement model；
D, monitoring assembly 1 is made:
The dual wire cannon born frame 1-1 for completing step B is placed in mold, it is swollen to fill required model made from step C
Swollen cement forms expanding cement cylinder 1-4 after solidification, complete the production of monitoring assembly 1；
E, multi-parameter monitoring devices are assembled:
In the cable lead-out end portion fixed laser rangefinder of expanding cement cylinder 1-4, the system of multi-parameter monitoring devices is completed
Standby process.
When the utility model is used, according to the actual conditions of engineering, country rock dangerouse cross-section and point is selected to be monitored, one
As choose top plate midpoint and two help midpoint, other premonitoring positions also may be selected and lay the utility model；In required this reality of laying
It is drilled with ductility direction on novel country rock, aperture is slightly larger than monitoring assembly 1, with high pressure water wash boring；Cylinder is supervised
It is inserted into flushed drilling after surveying the immersion a period of time of component 1, and is in the cable 1-3 exit of expanding cement cylinder 1-4
Outside waits 10-20 minutes, cement and expanded to form one with country rock；Each section choose top plate midpoint, two help in the same side
The monitoring assembly 1 of position installs laser range finder in its exposed end；Wiring is installed in the lateral wall upper end of installation laser range finder
The cable of monitoring assembly 1 and laser range finder is led to after terminal box the monitoring system that passes to by box, and then monitoring system can be real-time
The feedback signal of suffered stress, strain and absciss layer that each foil gauge 1-2 is transmitted is acquired, while monitoring system and can receive Laser Measuring
The distance between tunnel top bottom surface that distance meter transmits, two uppers Displacement Feedback signal, becomes the stress inside country rock to realize
Change, strain variation and absciss layer can measure the displacement outside country rock there is a situation where monitoring.
Claims (4)
1. a kind of multi-parameter monitoring devices for roadway surrounding rock, which is characterized in that including monitoring assembly (1) and rangefinder (2),
The monitoring assembly (1) include expanding cement cylinder (1-4), dual wire cannon born frame (1-1), foil gauge (1-2) and
Cable (1-3), the dual wire cannon born frame (1-1) and foil gauge (1-2) are in expanding cement cylinder (1-4), double
Spiral metal tube skeleton (1-1) includes two metal tubes (1-1-1) and multiple connecting branches (1-1-2), two metal tube (1-1-
1) it is arranged in double helix, is fixedly connected between two metal tubes (1-1-1) by multiple connecting branches (1-1-2), the strain
Piece (1-2) be it is multiple, multiple foil gauges (1-2) are separately fixed on multiple connecting branches (1-1-2) and adjacent foil gauge (1-2)
Between be mutually perpendicular to, one end of cable (1-3) is protruded into expanding cement cylinder (1-4), and each battery core in cable (1-3) point
It does not connect one to one with each foil gauge (1-2) lead, the other end of cable (1-3) passes through dual wire cannon born frame (1-
1) it is drawn from one end of expanding cement cylinder (1-4)；
The rangefinder (2) is fixed on the cable lead-out end of expanding cement cylinder (1-4).
2. the multi-parameter monitoring devices according to claim 1 for roadway surrounding rock, which is characterized in that the foil gauge
(1-2) is encapsulated in stainless steel thin slice.
3. the multi-parameter monitoring devices according to claim 1 for roadway surrounding rock, which is characterized in that the rangefinder
It (2) is laser range finder.
4. the multi-parameter monitoring devices according to claim 1 for roadway surrounding rock, which is characterized in that the expanding cement
The expanding cement that cylinder (1-4) uses is as identical as the rock property of installation place as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173441.1U CN208606799U (en) | 2018-07-23 | 2018-07-23 | Multi-parameter monitoring devices for roadway surrounding rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173441.1U CN208606799U (en) | 2018-07-23 | 2018-07-23 | Multi-parameter monitoring devices for roadway surrounding rock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208606799U true CN208606799U (en) | 2019-03-15 |
Family
ID=65669901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821173441.1U Expired - Fee Related CN208606799U (en) | 2018-07-23 | 2018-07-23 | Multi-parameter monitoring devices for roadway surrounding rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208606799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709588A (en) * | 2018-07-23 | 2018-10-26 | 山西大同大学 | A kind of multi-parameter monitoring devices and preparation method thereof for roadway surrounding rock |
| CN111156944A (en) * | 2019-12-25 | 2020-05-15 | 天地科技股份有限公司 | Real-time monitoring system and method for surrounding rock of roadway |
-
2018
- 2018-07-23 CN CN201821173441.1U patent/CN208606799U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709588A (en) * | 2018-07-23 | 2018-10-26 | 山西大同大学 | A kind of multi-parameter monitoring devices and preparation method thereof for roadway surrounding rock |
| CN108709588B (en) * | 2018-07-23 | 2023-09-08 | 山西大同大学 | Multi-parameter monitoring device for roadway surrounding rock and preparation method thereof |
| CN111156944A (en) * | 2019-12-25 | 2020-05-15 | 天地科技股份有限公司 | Real-time monitoring system and method for surrounding rock of roadway |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190315 Termination date: 20190723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |