CN202188929U - Prestressed anchor bolt device used in similitude simulation experiment - Google Patents
Prestressed anchor bolt device used in similitude simulation experiment Download PDFInfo
- Publication number
- CN202188929U CN202188929U CN2011202771481U CN201120277148U CN202188929U CN 202188929 U CN202188929 U CN 202188929U CN 2011202771481 U CN2011202771481 U CN 2011202771481U CN 201120277148 U CN201120277148 U CN 201120277148U CN 202188929 U CN202188929 U CN 202188929U
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- Prior art keywords
- anchor bolt
- elastic deformation
- prestressed anchor
- plate
- iron sheet
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- Expired - Fee Related
Links
- 238000004088 simulation Methods 0.000 title claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910052742 iron Inorganic materials 0.000 claims abstract description 30
- 230000005489 elastic deformation Effects 0.000 claims abstract description 19
- 239000011888 foil Substances 0.000 claims abstract description 8
- 229910001245 Sb alloy Inorganic materials 0.000 claims description 3
- 239000002140 antimony alloy Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A prestressed anchor bolt device used in a similitude simulation experiment comprises a simulated prestressed anchor bolt body, a spring arranged on the simulated prestressed anchor bolt body to form an elastic deformation iron sheet plate, and iron sheets arranged at the two ends of the spring, wherein a pressing ring sleeved on the simulated anchor bolt is arranged on the left side of the elastic deformation iron sheet plate; an adjusting plate and a locking device sequentially sleeved on the elastic deformation iron sheet plate are arranged on the right side of the elastic deformation iron sheet plate; and a strain foil connected with an electric resistance strain gauge via a data transmission line is arranged in the pressure ring. The prestressed anchor bolt device can be used in the similitude simulation experiment for simulating the prestressed anchor bolt support and protection in a coal mine roadway, an underground chamber and the like; the adjusting plate between the elastic deformation iron sheet plate and the locking device can enable that the elastic deformation iron sheet plate is uniform and stable to bear force; and when the anchor support and protection is simulated, the strain foil in the pressure ring is transmitted to the electric resistance strain gauge via the data transmission line and is converted into the anchor bolt force bearing according to a calibrated stress-strain regression equation, so that the working conditions of an anchor bolt can be accurately and conveniently monitored. The device provided by the utility model has reasonable design, convenience in operation and accuracy in measurement.
Description
Technical field
The utility model relates to a kind of prestress anchor device, especially a kind of prestress anchor device that is used for the analog simulation experiment.
Background technology
The analog simulation experiment is one of important means of association area researchs such as ground, mining.Domestic and international research and practice show that prestress is the key parameter in the bolt supporting, and supporting effect is played a decisive role.The prestressed anchor supporting belongs to real active support; Dilatation distortion such as open in absciss layer, slip, the crack that can in time control the anchorage zone country rock, new crackle generation; Make country rock be in pressured state; Suppress the appearance of country rock flexural deformation, stretching and shear failure, keep the integrality of country rock, reduce the reduction of country rock intensity.The stressed monitoring of anchor pole is that association area pressures from surrounding rock such as research chamber, tunnel, tunnel, side slope reach the important means of confirming Bolting Parameters; And anchor rod prestress is difficult to apply up in the analog simulation experiment; Do not know prestressed size even add up yet, in analog simulation the anchor pole stressing conditions can not be accurately, angles of science monitoring.Therefore when studying tunnel prestressed anchor supporting, during the experiment of employing analog simulation, a kind of prestress anchor device of necessary research both can accurately, conveniently be monitored the anchor pole stressing conditions, can apply a certain size prestress again.
Summary of the invention
The purpose of the utility model is to overcome the problem that exists in the prior art, and a kind of simple in structure, easy to operate prestress anchor device that is used for the analog simulation experiment is provided.
For realizing above-mentioned purpose; The prestress anchor device of the utility model; Comprise simulation prestressed anchor club shaft, be located at the iron plate that constitutes the spring of elastic deformation iron plate plate on the simulation prestressed anchor club shaft and be located at the spring right ends; Elastic deformation iron plate plate left side is provided with the pressure rings that is sleeved on the simulation prestressed anchor club shaft, and the right side is provided with adjustable plate and the lockset that is sleeved on successively on the simulation prestressed anchor club shaft, is provided with the foil gauge that links to each other with electric wire strain gauge through data line in the pressure rings.
Described simulation prestressed anchor club shaft is processed by lead-antimony alloy fuse material; Described iron plate is square; The iron plate and the spring that are located at the spring right ends are welded as a whole.
Beneficial effect: owing to adopted technique scheme; Elastic deformation iron plate plate is quantitatively applied anchor rod prestress; Play the effect of pressing that lets through elastic deformation iron plate plate; Adjustable plate between elastic deformation iron plate plate and the lockset can make elastic deformation iron plate plate evenly, stablize stressedly, when the supporting of simulation prestressed anchor, the foil gauge in the pressure rings is transferred to electric wire strain gauge through the transmission data line; To be converted into anchor pole stressed according to demarcating good stress-strain regression equation, can be accurately, the convenient anchor pole operating mode of monitoring.This device is reasonable in design, economical, easy to operate, measurement is accurate, can effectively simulate the size and the stressed reality of anchor pole of anchor rod prestress and advance monitoring, in the present technique field, has practicality widely.
Description of drawings
Fig. 1 is the micro pre-stressed anchor pole structural drawing of the present invention.
Among the figure: 1-prestressed anchor club shaft, 2-iron plate, 3-lockset, 4-adjustable plate, 5-spring, 6-pressure rings.
Embodiment
An embodiment to the utility model further describes below in conjunction with accompanying drawing:
The prestress anchor device of the utility model is made up of prestressed anchor club shaft 1, iron plate 2, little lockset 3, adjustable plate 4, spring 5, small pressure ring 6, is provided with the foil gauge that links to each other with electric wire strain gauge through data line in the pressure rings 6.Described iron plate 2 is square; Its machining center hole, center, two iron plates 2 weld together with spring 5 forms elastic deformation iron plate plate, is used to apply the prestress of prestressed anchor 1; Apply the deflection that prestressed size can be through spring 5 and demarcate good spring modulus and calculate and apply prestressed size; In the NOL ring 6 of elastic deformation iron plate plate left side, be provided with foil gauge, the NOL ring center is porose, is sleeved on the prestressed anchor 1; Be provided with adjustable plate 4 between elastic deformation iron plate plate and the lockset 3; Be processed with the center pits that are sleeved on the prestressed anchor club shaft 1 in the middle of the adjustable plate 4, adjustable plate 4 is used to make elastic deformation iron plate plate stressed evenly, stable, apply the prestress that needs after; Use lockset 3 to pin the body of rod of prestressed anchor 1, prestressed anchor 1 employing has certain strength and stiffness lead-antimony alloy fuse and processes.When carrying out the analog simulation experiment; Adopting polyvinyl acetate emulsion to add the gypsum anchoring agent that mediation forms with water fixes prestressed anchor club shaft 1 termination; Apply power through 4 pairs of elastic deformation iron plates of adjustable plate plate; Foil gauge in the NOL ring 6 connects electric wire strain gauge through data line, goes out the stressed size of prestressed anchor according to demarcating good stress-strain regression equation calculation.
Claims (4)
1. one kind is used for the prestress anchor device that analog simulation is tested; It is characterized in that: it comprises simulation prestressed anchor club shaft (1), is located at the iron plate (2) that simulation prestressed anchor club shaft (1) is gone up the spring (5) of formation elastic deformation iron plate plate and is located at spring (5) right ends; Elastic deformation iron plate plate left side is provided with the pressure rings (6) that is sleeved on the simulation prestressed anchor club shaft (1); The right side is provided with adjustable plate (4) and the lockset (3) that is sleeved on successively on the simulation prestressed anchor club shaft (1), and pressure rings is provided with the foil gauge that links to each other with electric wire strain gauge through data line in (6).
2. a kind of prestress anchor device that is used for the analog simulation experiment according to claim 1, it is characterized in that: described simulation prestressed anchor club shaft (1) is processed by lead-antimony alloy fuse material.
3. a kind of prestress anchor device that is used for the analog simulation experiment according to claim 1, it is characterized in that: described iron plate (2) is for square.
4. a kind of prestress anchor device that is used for the analog simulation experiment according to claim 1 is characterized in that: the iron plate (2) that is located at spring (5) right ends is welded as a whole with spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202771481U CN202188929U (en) | 2011-08-02 | 2011-08-02 | Prestressed anchor bolt device used in similitude simulation experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202771481U CN202188929U (en) | 2011-08-02 | 2011-08-02 | Prestressed anchor bolt device used in similitude simulation experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188929U true CN202188929U (en) | 2012-04-11 |
Family
ID=45920372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202771481U Expired - Fee Related CN202188929U (en) | 2011-08-02 | 2011-08-02 | Prestressed anchor bolt device used in similitude simulation experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188929U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155176A (en) * | 2014-08-28 | 2014-11-19 | 中国电建集团中南勘测设计研究院有限公司 | Simulation test device and method for working state of anchor rod and anchor rod stress meter |
| CN104296896A (en) * | 2014-11-04 | 2015-01-21 | 山东科技大学 | Direct reading type rock bolt dynamometer used for simulation test and working method thereof |
| CN104790413A (en) * | 2015-04-21 | 2015-07-22 | 常州工学院 | Self-pressurization protecting device and method thereof for keeping expansive soil cut slope stable |
| CN106312345A (en) * | 2016-09-20 | 2017-01-11 | 北京工业大学 | Device for applying prestress |
| CN107292052A (en) * | 2017-07-10 | 2017-10-24 | 河南理工大学 | A kind of anchor pole applies prestressed method for numerical simulation |
| CN110700869A (en) * | 2019-10-15 | 2020-01-17 | 华北科技学院 | Anchor rod supporting structure |
-
2011
- 2011-08-02 CN CN2011202771481U patent/CN202188929U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155176A (en) * | 2014-08-28 | 2014-11-19 | 中国电建集团中南勘测设计研究院有限公司 | Simulation test device and method for working state of anchor rod and anchor rod stress meter |
| CN104296896A (en) * | 2014-11-04 | 2015-01-21 | 山东科技大学 | Direct reading type rock bolt dynamometer used for simulation test and working method thereof |
| CN104790413A (en) * | 2015-04-21 | 2015-07-22 | 常州工学院 | Self-pressurization protecting device and method thereof for keeping expansive soil cut slope stable |
| CN106312345A (en) * | 2016-09-20 | 2017-01-11 | 北京工业大学 | Device for applying prestress |
| CN106312345B (en) * | 2016-09-20 | 2018-10-12 | 北京工业大学 | It is a kind of to apply prestressed device |
| CN107292052A (en) * | 2017-07-10 | 2017-10-24 | 河南理工大学 | A kind of anchor pole applies prestressed method for numerical simulation |
| CN107292052B (en) * | 2017-07-10 | 2020-06-19 | 河南理工大学 | Numerical simulation method for prestress applied to anchor rod |
| CN110700869A (en) * | 2019-10-15 | 2020-01-17 | 华北科技学院 | Anchor rod supporting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |