CN206321516U - A kind of anchor pole shears nature imitation experiment device - Google Patents
A kind of anchor pole shears nature imitation experiment device Download PDFInfo
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- CN206321516U CN206321516U CN201621187944.5U CN201621187944U CN206321516U CN 206321516 U CN206321516 U CN 206321516U CN 201621187944 U CN201621187944 U CN 201621187944U CN 206321516 U CN206321516 U CN 206321516U
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- 238000002474 experimental method Methods 0.000 title claims abstract description 7
- 238000004088 simulation Methods 0.000 claims abstract description 17
- 238000010008 shearing Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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Abstract
本实用新型涉及一种锚杆剪切仿真实验装置。可以有效解决现有技术费时费力，同时准确率低的问题，其解决的技术方案是，包括外部框架、第一液压缸、第二液压缸、侧护板、连接杆。实验装置可固定于稳定的地基中，锚杆两端的预应力可根据实验需求进行调控，实验过程中，通过不断增加第二液压缸的压力来模拟对锚杆的剪切作用，能够满足不同种类锚杆及锚索的抗剪模拟实验，本实用新型可操作性强，制作成本低，实用性高，能够有效减少锚杆支护失效的发生，也可为水利、隧道、矿山等岩土工程提供科学依据。
The utility model relates to a bolt shear simulation experiment device. It can effectively solve the problems of time-consuming, labor-intensive and low accuracy in the prior art, and the technical solution is to include an outer frame, a first hydraulic cylinder, a second hydraulic cylinder, side guard plates, and connecting rods. The experimental device can be fixed in a stable foundation, and the prestress at both ends of the anchor rod can be adjusted according to the experimental requirements. During the experiment, the shearing effect on the anchor rod is simulated by continuously increasing the pressure of the second hydraulic cylinder, which can meet the needs of different types of The shear simulation experiment of anchor rods and anchor cables, the utility model has strong operability, low manufacturing cost and high practicability, can effectively reduce the occurrence of bolt support failure, and can also be used for geotechnical projects such as water conservancy, tunnels, and mines Provide a scientific basis.
Description
技术领域technical field
本实用新型涉及煤矿巷道支护领域，特别是一种锚杆剪切仿真实验装置。The utility model relates to the field of coal mine roadway support, in particular to a bolt shear simulation experiment device.
背景技术Background technique
自20世纪90年代以来，锚杆支护以其显著的技术和经济优越性在煤矿中获得了广泛应用，是巷道支护的一场革命。大量专家学者在支护理论、参数设计方法及效果监测方面做了大量工作，取得了很多有意义的成果。但是，锚杆支护失效仍时有发生。锚杆剪切破坏成为锚杆失效的首要问题。因此对顶板岩层性质及结构、锚杆的锚固特性必须有足够的研究。而煤矿地下环境相当恶劣，受条件限制以上都很难从现场实地考察得到。通常为了进行相关研究，需要进行实验室相似模拟实验，通过对相似模型的模拟和实验，来研究工程围岩的变形、移动和破坏等力学现象，分析剪切应力作用于锚杆的剪切效果。而现有的锚杆剪切研究多采用的是双剪形式，模拟不了巷道围岩对锚杆的实际受力情况，得出的结论可能对实际工程应用没有太大的意义;有的实验装置虽能模拟一些实际的工程状况，但是功能单一，操作不便，不具备针对性，实际应用起来不是太经济方便。因此，开发出一种三维的、结构简单合理、实现模拟锚杆受力情况的综合仿真实验装置势在必行。Since the 1990s, bolt support has been widely used in coal mines due to its remarkable technical and economic advantages, and it is a revolution in roadway support. A large number of experts and scholars have done a lot of work in support theory, parameter design methods and effect monitoring, and have achieved many meaningful results. However, bolt support failure still occurs from time to time. Anchor shear failure has become the primary problem of anchor failure. Therefore, there must be sufficient research on the properties and structure of the roof rock formation and the anchoring characteristics of the bolt. However, the underground environment of coal mines is quite harsh, and it is difficult to obtain the above conditions from on-site inspections due to limited conditions. Usually, in order to carry out relevant research, it is necessary to carry out similar simulation experiments in the laboratory. Through the simulation and experiment of similar models, the mechanical phenomena such as deformation, movement and failure of the engineering surrounding rock are studied, and the shear effect of the shear stress acting on the bolt is analyzed. . However, the existing bolt shear research mostly adopts the double-shear form, which cannot simulate the actual stress on the bolt by the surrounding rock of the roadway, and the conclusions drawn may not have much significance for practical engineering applications; some experimental devices Although it can simulate some actual engineering conditions, the function is single, the operation is inconvenient, and it is not targeted. It is not very economical and convenient for practical application. Therefore, it is imperative to develop a three-dimensional, simple and reasonable structure, and a comprehensive simulation experiment device that can simulate the force of the bolt.
发明内容Contents of the invention
本实用新型的目的在于克服上述现有技术的不足，提供一种锚杆剪切仿真实验装置，可以有效的模拟锚杆受围岩剪切作用的影响。The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art, and provide a bolt shearing simulation experiment device, which can effectively simulate the impact of the bolt being sheared by the surrounding rock.
本实用新型解决的技术方案是，包括外部框架、第一液压缸、第二液压缸、侧护板、连接杆，所述的外部框架由三块高强度刚性材料加工而成，并由高强度连接杆进行加固，外部框架用于承载混凝土试件，其中，混凝土试件两侧装配侧护板，并由连接杆固定，同时，侧护板上安装液压缸，保证剪切应力能垂直于混凝土试件，锚杆锚固于混凝土试件中，并通过锚杆两端的液压缸施加不同大小的预应力。The technical scheme solved by the utility model is to include an outer frame, a first hydraulic cylinder, a second hydraulic cylinder, a side guard plate, and a connecting rod. The outer frame is made of three pieces of high-strength The connecting rods are reinforced, and the external frame is used to carry the concrete specimens. The concrete specimens are equipped with side guards on both sides and fixed by the connecting rods. At the same time, hydraulic cylinders are installed on the side guards to ensure that the shear stress can be perpendicular to the concrete. For the specimen, the anchor rod is anchored in the concrete specimen, and different sizes of prestress are applied through the hydraulic cylinders at both ends of the anchor rod.
本实用新型结构新颖，成本低，实用性强，操作方便，能够广泛应用于各种锚杆的性能试验，实验结果可靠，能够有效减少生产过程中发生锚杆剪切破断。The utility model has the advantages of novel structure, low cost, strong practicability and convenient operation, can be widely used in performance tests of various anchor rods, has reliable test results, and can effectively reduce the occurrence of anchor rod shear fracture in the production process.
附图说明Description of drawings
图1为本实用新型的整体结构立体图。Fig. 1 is a perspective view of the overall structure of the utility model.
图2为本实用新型的整体结构俯视图。Fig. 2 is a top view of the overall structure of the utility model.
图3为本实用新型的整体结构主视图。Fig. 3 is a front view of the overall structure of the utility model.
图4为本实用新型的整体结构侧视图。Fig. 4 is a side view of the overall structure of the utility model.
具体实施方式。detailed description.
以下结合附图对本实用新型的具体实施方式作以详细描述。Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.
由图1-3给出，本实用新型包括外部框架、第一液压缸、第二液压缸、侧护板、连接杆，所述的外部框架6由三块高强度刚性材料加工而成，并由高强度连接杆9进行加固，外部框架6用于承载混凝土试件7，其中，混凝土试件7两侧装配侧护板10，并由连接杆8固定，同时，侧护板10上安装第二液压缸4，，保证剪切应力能垂直于混凝土试件7，锚杆1锚固于混凝土试件7中，并通过锚杆1两端的第一液压缸2施加不同大小的预应力。Given by Figures 1-3, the utility model includes an external frame, a first hydraulic cylinder, a second hydraulic cylinder, a side guard plate, and a connecting rod. The external frame 6 is processed by three high-strength rigid materials, and Reinforced by high-strength connecting rods 9, the external frame 6 is used to carry the concrete specimen 7, wherein side guard plates 10 are assembled on both sides of the concrete specimen 7 and fixed by the connecting rods 8, and the side guard plate 10 is installed with the second The second hydraulic cylinder 4' ensures that the shear stress is perpendicular to the concrete specimen 7, the anchor rod 1 is anchored in the concrete specimen 7, and the first hydraulic cylinders 2 at both ends of the anchor rod 1 apply different sizes of prestress.
所述的外部框架6底部预先留设有四个直径φ30mm的圆孔13，分布于外部框架6的四个边角，便于仿真实验装置的固定。The bottom of the outer frame 6 is pre-reserved with four round holes 13 with a diameter of φ30mm, which are distributed on the four corners of the outer frame 6, so as to facilitate the fixing of the simulation experiment device.
所述的外部框架6在其两侧的支撑板中开有横向顺槽12，以便满足实验过程中由于剪切作用产生的锚杆1横向位移。The outer frame 6 is provided with transverse grooves 12 in the supporting plates on both sides, so as to meet the transverse displacement of the anchor rod 1 due to the shearing action during the experiment.
所述的第一液压缸2固定在锚杆1的两端，对锚固好的锚杆1施加不同大小的预应力，以保证实验效果。The first hydraulic cylinder 2 is fixed at both ends of the anchor rod 1, and prestress of different sizes is applied to the anchor rod 1 to ensure the experimental effect.
所述的第一液压缸2、第二液压缸4分别通过第一外置接口11和第二外置接口5与外部液压加载装置连接，根据实验模拟情况不断调整压力的施加。The first hydraulic cylinder 2 and the second hydraulic cylinder 4 are respectively connected to the external hydraulic loading device through the first external interface 11 and the second external interface 5, and the application of pressure is constantly adjusted according to the experimental simulation situation.
所述的高强度连接杆9直径φ28mm，采用高强度刚性材料加工而成，并通过螺母3固定在外部框架6上，对外部框架6进行整体加固，保证试验装置的安全可靠。The high-strength connecting rod 9 has a diameter of φ28 mm and is made of high-strength rigid material, and is fixed on the outer frame 6 by nuts 3 to reinforce the outer frame 6 as a whole to ensure the safety and reliability of the test device.
所述的连接杆8为直径φ10mm的刚性材料加工而成。The connecting rod 8 is processed from a rigid material with a diameter of φ10mm.
所述的外部框架6由三块高强度刚性材料加工而成，其整体尺寸为620mm×400mm×510mm。The outer frame 6 is processed from three high-strength rigid materials, and its overall size is 620mm×400mm×510mm.
本实用新型的工作过程如下：在做实验之前，需要对液压加载装置进行检测，确保都能正常使用。在外部框架6内侧涂抹油脂，把事先用相似模拟材料加工好的混凝土试件7放置于外部框架6内，将锚杆1锚固于混凝土试件7中，并对锚杆1两端施加相应大小的预应力，实验过程中，通过不断增加第二液压缸4的压力来模拟对锚杆1的剪切作用，根据对不同锚杆1的实验研究，可以有效的分析出锚杆1的工作特性。The working process of the utility model is as follows: before doing the experiment, it is necessary to detect the hydraulic loading device to ensure that it can be used normally. Apply grease to the inner side of the outer frame 6, place the concrete specimen 7 processed in advance with similar simulated materials in the outer frame 6, anchor the anchor rod 1 in the concrete specimen 7, and apply corresponding size to both ends of the anchor rod 1 During the experiment, the shearing effect on the anchor rod 1 is simulated by continuously increasing the pressure of the second hydraulic cylinder 4. According to the experimental research on different anchor rods 1, the working characteristics of the anchor rod 1 can be effectively analyzed .
本实用新型结构新颖，成本较低，可操作性较强，能够较为准确的测得在剪切作用下锚杆1的工作特性，有效减少锚杆支护失效的发生，具有良好的经济和社会效益。The utility model has the advantages of novel structure, low cost and strong operability, and can accurately measure the working characteristics of the bolt 1 under the shearing action, effectively reducing the occurrence of bolt support failure, and has good economic and social benefits. benefit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621187944.5U CN206321516U (en) | 2016-11-04 | 2016-11-04 | A kind of anchor pole shears nature imitation experiment device |
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| CN201621187944.5U CN206321516U (en) | 2016-11-04 | 2016-11-04 | A kind of anchor pole shears nature imitation experiment device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115632A (en) * | 2018-09-30 | 2019-01-01 | 河南理工大学 | The comprehensive shearing experiment device of anchoring body and its experimental method |
| CN109443736A (en) * | 2018-12-21 | 2019-03-08 | 河南理工大学 | Easy mobile multifunctional is crept into automatically and emulates anchor rod anchored testing stand for a kind of laboratory |
| CN110044526A (en) * | 2019-05-10 | 2019-07-23 | 吉林大学 | A kind of optical fiber optical grating stress sensor and its processing and scaling method |
| CN113295514A (en) * | 2021-06-11 | 2021-08-24 | 王忠波 | Pulling and pressing equipment for testing corrosion resistance and shearing resistance of anchor rod |
| CN114894636A (en) * | 2022-04-19 | 2022-08-12 | 中国矿业大学 | Anchor rod/cable shearing performance testing device under complex working conditions and operation method |
| CN115060446A (en) * | 2022-05-27 | 2022-09-16 | 中国矿业大学 | Dynamic response experimental device and method for anchoring structure under impact action |
-
2016
- 2016-11-04 CN CN201621187944.5U patent/CN206321516U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115632A (en) * | 2018-09-30 | 2019-01-01 | 河南理工大学 | The comprehensive shearing experiment device of anchoring body and its experimental method |
| CN109115632B (en) * | 2018-09-30 | 2024-05-03 | 河南理工大学 | Anchoring body comprehensive shearing experiment device and experiment method thereof |
| CN109443736A (en) * | 2018-12-21 | 2019-03-08 | 河南理工大学 | Easy mobile multifunctional is crept into automatically and emulates anchor rod anchored testing stand for a kind of laboratory |
| CN109443736B (en) * | 2018-12-21 | 2024-04-19 | 河南理工大学 | Laboratory is automatic drills into and is easily removed multi-functional emulation stock anchor test bench |
| CN110044526A (en) * | 2019-05-10 | 2019-07-23 | 吉林大学 | A kind of optical fiber optical grating stress sensor and its processing and scaling method |
| CN110044526B (en) * | 2019-05-10 | 2020-06-02 | 吉林大学 | Fiber grating stress sensor and processing and calibration method thereof |
| CN113295514A (en) * | 2021-06-11 | 2021-08-24 | 王忠波 | Pulling and pressing equipment for testing corrosion resistance and shearing resistance of anchor rod |
| CN113295514B (en) * | 2021-06-11 | 2022-07-01 | 王忠波 | Pulling and pressing equipment for testing corrosion resistance and shearing resistance of anchor rod |
| CN114894636A (en) * | 2022-04-19 | 2022-08-12 | 中国矿业大学 | Anchor rod/cable shearing performance testing device under complex working conditions and operation method |
| CN115060446A (en) * | 2022-05-27 | 2022-09-16 | 中国矿业大学 | Dynamic response experimental device and method for anchoring structure under impact action |
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