CN202735156U - Test platform for anchor rod stress state test - Google Patents

Test platform for anchor rod stress state test Download PDF

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Publication number
CN202735156U
CN202735156U CN 201220394019 CN201220394019U CN202735156U CN 202735156 U CN202735156 U CN 202735156U CN 201220394019 CN201220394019 CN 201220394019 CN 201220394019 U CN201220394019 U CN 201220394019U CN 202735156 U CN202735156 U CN 202735156U
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CN
China
Prior art keywords
basic unit
briquetting
anchor rod
anchor pole
bearing plate
Prior art date
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.)
Expired - Fee Related
Application number
CN 201220394019
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Chinese (zh)
Inventor
张泽
赵同彬
谭云亮
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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Filing date
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Priority to CN 201220394019 priority Critical patent/CN202735156U/en
Application granted granted Critical
Publication of CN202735156U publication Critical patent/CN202735156U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a test platform for an anchor rod stress state test. The test platform comprises a tension sensor, a connection member, an anchor body, a first shearing press block, a second shearing press block, a tester horizontal loading device and a tester oil cylinder. The anchor body comprises a base layer, a separation layer, an anchor rod, a binding agent, a strain gauge and a static resistance strain gauge. The anchor rod is connected with the tension sensor through a connection member, the anchor rod is positioned in the base layer and the separation layer, the first shearing press block is in contact with the separation layer, the second shearing press block is in contact with the base layer, the first shearing press block and the second shearing press block are connected with the tester horizontal loading device, the strain gauge is positioned on the anchor rod and connected with the static resistance strain gauge, and the tester oil cylinder can exert axial force on the base layer. The test platform is simple in structure and convenient to install, conforms to the stress conditions of an engineering actual anchor rod in anchor rod interfacial stress test, and has the function of testing anchor rod stress distribution regularity under the various and combined loading conditions.

Description

A kind of test platform of rockbolt stress state verification
Technical field
The utility model belongs to ground anchorage device for measuring force technical field, especially relates to the shop experiment platform that in the engineerings such as mine, tunnel, side slope, foundation ditch anchor pole is subjected to stress distribution law research in interface under the absciss layer shear inference.
Background technology
Anchorage technology is as a kind of superior Rock And Soil reinforcement technique method, more and more be widely used in various engineering fields, but the research of anchor mechanism still obviously lags behind the development of anchorage technology, particularly at the absciss layer expansion initial stage, anchor pole was still needed in absciss layer place interfacial stress distribution rule and is further studied when absciss layer was in the shear failure state, and it is significant for anchor mechanism research, design of its support and Stability Analysis of Rock Mass.
In the existing lab investigation, generally adopt pull-out test to carry out the anchor pole Surface stress measure, the direct bearing tension of anchor pole exposed junction is outwards extracted anchor pole in the process of the test from matrix.Prefabricated absciss layer in anchoring body, in drawing process, prefabricated absciss layer is in the rockbolt stress Status unknown under the shearing condition, is difficult to obtain the anchor pole interfacial stress distribution rule under the absciss layer shearing condition after engineering rock mass is reinforced.
The utility model content
The utility model is intended to address the above problem, and a kind of test platform of rockbolt stress state verification is provided, and its technical scheme that adopts is as follows:
A kind of test platform of rockbolt stress state verification comprises: pulling force sensor, connecting elements, anchoring body, first are sheared briquetting, second and are sheared briquetting, testing machine horizontal loading apparatus and testing machine oil cylinder;
Described anchoring body comprises: basic unit, absciss layer, anchor pole, cementing agent, foil gauge and static resistance strainmeter;
Described anchor pole top is connected with pulling force sensor by connecting elements, described anchor pole is located in basic unit and the absciss layer and is affixed by cementing agent and basic unit and absciss layer, described the first shearing briquetting contacts with absciss layer and absciss layer is imposed radial force, described the second shearing briquetting contacts with basic unit and basic unit is imposed radial force, described first shears briquetting shears briquetting and all is connected and application of force opposite direction with the testing machine horizontal loading apparatus with being connected, described foil gauge is located on the anchor pole and by data line and is connected with the static resistance strainmeter, and described testing machine oil cylinder is located at the basic unit bottom and basic unit is imposed axial force.
On the technique scheme basis, also comprise the bulb bearing, described connecting elements is connected with pulling force sensor by the bulb bearing.
On the technique scheme basis, also comprise bearing plate, lower bearing plate and connecting link, described upper bearing plate is fixed in the basic unit bottom surface, and described lower bearing plate and testing machine oil cylinder are affixed, and described upper bearing plate is connected by connecting link with lower bearing plate.
On the technique scheme basis, the side of described anchor pole in axial direction offers two grooves, and groove is symmetrical as the image line mirror image take the axis of anchor pole, and foil gauge is located in the groove.
The utlity model has following advantage: by the design of test platform structure, when the anchor pole Surface stress measure, make anchoring body in being subject to the process of axial pulling capacity, bear shear-type load, force-bearing situation when sheared by absciss layer with anchor pole in the engineering reality conforms to, the utility model is simple in structure, easy for installation, and possess the anchor pole that carries out under the multiple combination loading environment and answer regularity of distribution test function.
Description of drawings
Fig. 1: structural representation of the present utility model (band section);
Fig. 2: anchoring body described in the utility model structural representation (band section);
Fig. 3: upper bearing plate described in the utility model look up structural representation;
Fig. 4: lower bearing plate described in the utility model look up structural representation;
Fig. 5: described in the utility model first shears the structural representation of facing of briquetting;
Fig. 6: described in the utility model first shears the plan structure synoptic diagram of briquetting;
Fig. 7: described in the utility model first shears the side-looking structural representation of briquetting;
Fig. 8: described in the utility model second shears the structural representation of facing of briquetting;
Fig. 9: described in the utility model second shears the plan structure synoptic diagram of briquetting;
Figure 10: described in the utility model second shears the side-looking structural representation of briquetting;
Symbol description
1. pulling force sensor, 2. fixing clamp, 3. connecting elements, 4. anchoring body, 5. connecting link is 6. gone up bearing plate, 7. first shear briquetting, 8. second shear briquetting, 9. testing machine horizontal loading apparatus, 11. lower bearing plate, 12. testing machine oil cylinders, 20. absciss layers, 21. cementing agent, 22. anchor poles, 23. grooves, 24. foil gauge, 25. basic units.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and example:
Extremely shown in Figure 10 such as Fig. 1, the test platform of a kind of rockbolt stress state verification of the present utility model, comprise: pulling force sensor 1, connecting elements 3, anchoring body 4, first are sheared briquetting 7, second and are sheared briquetting 8, testing machine horizontal loading apparatus 9 and testing machine oil cylinder 12, and it is to be processed by mold that described the first shearing briquetting 7 and second is sheared briquetting 8;
Described anchoring body 4 comprises: basic unit 25, absciss layer 20, anchor pole 22, cementing agent 21, foil gauge 24 and static resistance strainmeter;
It is the screw-thread steel of Φ 18mm that described anchor pole 22 adopts external diameter, described anchor pole 22 tops are connected with pulling force sensor 1 by connecting elements 3, described anchor pole 22 is located in basic unit 25 and the absciss layer 20 also affixed with basic unit 25 and absciss layer 20 by cementing agent 21, described the first shearing briquetting 7 contacts with absciss layer 20 and absciss layer 20 is imposed radial force, described the second shearing briquetting 8 contacts with basic unit 25 and basic unit 25 is imposed radial force, described first shears briquetting 7 shears briquetting 8 and all is connected and application of force opposite direction with testing machine horizontal loading apparatus 9 with being connected, described foil gauge 24 is located on the anchor pole 22 and by data line and is connected with the static resistance strainmeter, the strain value variable quantity of anchor pole 22 bodies of rod in the monitoring loading procedure, to obtain the stress of anchor pole 22, described testing machine oil cylinder 12 is located at basic unit 25 bottoms and basic unit 25 is imposed axial force.
Preferably, also comprise bulb bearing 2, described connecting elements 3 is connected with pulling force sensor 1 by bulb bearing 2.
Preferably, also comprise bearing plate 6, lower bearing plate 11 and connecting link 5, described upper bearing plate 6 is fixed in basic unit 25 bottom surfaces, and described lower bearing plate 11 is affixed with testing machine oil cylinder 12, and described upper bearing plate 6 is connected by connecting link 5 with lower bearing plate 11.
Further again, the side of described anchor pole 22 in axial direction offers two grooves 23, and groove 23 is symmetrical as the image line mirror image take the axis of anchor pole 22, and foil gauge 24 is located in the groove 23.
The above is illustrated the utility model with way of example, but the utility model is not limited to above-mentioned specific embodiment, and all any change or modification of doing based on the utility model all belong to the claimed scope of the utility model.

Claims (4)

1. the test platform of a rockbolt stress state verification, it is characterized in that, comprising: pulling force sensor (1), connecting elements (3), anchoring body (4), first are sheared briquetting (7), second and are sheared briquetting (8), testing machine horizontal loading apparatus (9) and testing machine oil cylinder (12);
Described anchoring body (4) comprising: basic unit (25), absciss layer (20), anchor pole (22), cementing agent (21), foil gauge (24) and static resistance strainmeter;
Described anchor pole (22) top is connected with pulling force sensor (1) by connecting elements (3), described anchor pole (22) is located in basic unit (25) and the absciss layer (20) also affixed with basic unit (25) and absciss layer (20) by cementing agent (21), described the first shearing briquetting (7) contacts with absciss layer (20) and absciss layer (20) is imposed radial force, described the second shearing briquetting (8) contacts with basic unit (25) and basic unit (25) is imposed radial force, described first shears briquetting (7) and is connected shearing briquetting (8) and all be connected and application of force opposite direction with testing machine horizontal loading apparatus (9), described foil gauge (24) is located at anchor pole (22) and upward and by data line is connected with the static resistance strainmeter, and described testing machine oil cylinder (12) is located at basic unit (25) bottom and basic unit (25) is imposed axial force.
2. the test platform of a kind of rockbolt stress state verification according to claim 1 is characterized in that: also comprise bulb bearing (2), described connecting elements (3) is connected with pulling force sensor (1) by bulb bearing (2).
3. the test platform of a kind of rockbolt stress state verification according to claim 1 and 2, it is characterized in that: also comprise bearing plate (6), lower bearing plate (11) and connecting link (5), described upper bearing plate (6) is fixed in basic unit (25) bottom surface, described lower bearing plate (11) is affixed with testing machine oil cylinder (12), and described upper bearing plate (6) is connected by connecting link (5) with lower bearing plate (11).
4. the test platform of a kind of rockbolt stress state verification according to claim 3, it is characterized in that: the side of described anchor pole (22) in axial direction offers two grooves (23), groove (23) is symmetrical as the image line mirror image take the axis of anchor pole (22), and foil gauge (24) is located in the groove (23).
CN 201220394019 2012-08-09 2012-08-09 Test platform for anchor rod stress state test Expired - Fee Related CN202735156U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220394019 CN202735156U (en) 2012-08-09 2012-08-09 Test platform for anchor rod stress state test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220394019 CN202735156U (en) 2012-08-09 2012-08-09 Test platform for anchor rod stress state test

Publications (1)

Publication Number Publication Date
CN202735156U true CN202735156U (en) 2013-02-13

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075945A (en) * 2014-07-09 2014-10-01 北京科技大学 Anchoring structure rheological testing machine and method for simulating rheological properties of geologic structure body by utilizing machine
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
CN105221172A (en) * 2015-09-21 2016-01-06 中国矿业大学 A kind of end-fixed bolter free segment real-time axle power nondestructive testing calibration system and method
CN105486431A (en) * 2015-12-30 2016-04-13 山东科技大学 Recycle type borehole stress monitoring device and monitoring method
CN105606472A (en) * 2016-03-10 2016-05-25 辽宁工程技术大学 Anchor rod impact test device and method thereof
CN105675395A (en) * 2016-02-01 2016-06-15 山东科技大学 Testing system for interfacial stress transmission mechanism of soil anchorage body and testing method
CN105738200A (en) * 2016-02-01 2016-07-06 山东科技大学 Visible testing device for soil layer anchoring body stress transferring mechanism and testing method of visible testing device
CN106053214A (en) * 2016-07-28 2016-10-26 西安工业大学 Testing apparatus for research of imposed load of bed separation to anchor pole and manufacturing method
CN106759536A (en) * 2016-12-09 2017-05-31 西南石油大学 It is a kind of to control to apply the model test apparatus and test method with monitoring anchor cable pulling force
CN108844807A (en) * 2018-04-28 2018-11-20 青岛理工大学 A kind of fiber bar anti-float anchor rod mechanical characteristic simulation laboratory test method
CN111638119A (en) * 2020-07-23 2020-09-08 兰州理工大学 Slurry-soil interface strain testing method for earthen site anchoring system
CN112414870A (en) * 2020-11-11 2021-02-26 中国科学院地质与地球物理研究所 Rock mass shear test system for high-energy accelerator CT scanning

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075945A (en) * 2014-07-09 2014-10-01 北京科技大学 Anchoring structure rheological testing machine and method for simulating rheological properties of geologic structure body by utilizing machine
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
CN105221172A (en) * 2015-09-21 2016-01-06 中国矿业大学 A kind of end-fixed bolter free segment real-time axle power nondestructive testing calibration system and method
CN105221172B (en) * 2015-09-21 2017-11-17 中国矿业大学 A kind of real-time axle power Non-Destructive Testing calibration system of end-fixed bolter free segment and method
CN105486431A (en) * 2015-12-30 2016-04-13 山东科技大学 Recycle type borehole stress monitoring device and monitoring method
CN105486431B (en) * 2015-12-30 2017-09-29 山东科技大学 A kind of recoverable drilling hole stress monitoring device and monitoring method
CN105738200A (en) * 2016-02-01 2016-07-06 山东科技大学 Visible testing device for soil layer anchoring body stress transferring mechanism and testing method of visible testing device
CN105675395A (en) * 2016-02-01 2016-06-15 山东科技大学 Testing system for interfacial stress transmission mechanism of soil anchorage body and testing method
CN105738200B (en) * 2016-02-01 2018-05-25 山东科技大学 The visual experimental rig of soil layer anchoring body stress transfer mechanism and its test method
CN105606472B (en) * 2016-03-10 2019-05-14 辽宁工程技术大学 A kind of anchor pole impact test apparatus and its method
CN105606472A (en) * 2016-03-10 2016-05-25 辽宁工程技术大学 Anchor rod impact test device and method thereof
CN106053214A (en) * 2016-07-28 2016-10-26 西安工业大学 Testing apparatus for research of imposed load of bed separation to anchor pole and manufacturing method
CN106759536B (en) * 2016-12-09 2018-10-26 西南石油大学 A kind of model test apparatus and test method of control application and monitoring anchor cable pulling force
CN106759536A (en) * 2016-12-09 2017-05-31 西南石油大学 It is a kind of to control to apply the model test apparatus and test method with monitoring anchor cable pulling force
CN108844807A (en) * 2018-04-28 2018-11-20 青岛理工大学 A kind of fiber bar anti-float anchor rod mechanical characteristic simulation laboratory test method
CN108844807B (en) * 2018-04-28 2020-09-11 青岛理工大学 Indoor simulation test method for stress characteristic of fiber rib anti-floating anchor rod
CN111638119A (en) * 2020-07-23 2020-09-08 兰州理工大学 Slurry-soil interface strain testing method for earthen site anchoring system
CN112414870A (en) * 2020-11-11 2021-02-26 中国科学院地质与地球物理研究所 Rock mass shear test system for high-energy accelerator CT scanning

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20150809