Device and method for testing crack arrest mechanism of anchor rod under action of dynamic and static loads of surrounding rock
A test method, test device technology, applied in the direction of measuring device, using stable tension/pressure test material strength, instruments, etc., to achieve the effect of improving the distortion problem
Active Publication Date: 2020-05-08
TAIYUAN UNIV OF TECH
View PDF7 Cites 14 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The test device and method make use of the transparent characteristics of the material, so that the crack resistance mechanism of the bolt to the surrounding rock under the action of dynamic and static loads can be more intuitively reflected, and the information conversion process of monitoring equipment such as acoustic emission or CT scanning is improved. It is of great significance to the research on the development of cracks under the action of dynamic and static loads and the mechanism of crack resistance of rock bolts.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0036] The present invention will be further described in detail below in conjunction with specific embodiments, but the protection scope of the present invention is not limited to these embodiments, and all changes or equivalent substitutions that do not depart from the concept of the present invention are included within the protection scope of the present invention.
[0037] like image 3 Shown, a kind of test device based on the anchor bolt of transparent rock mass material acts on the crack resistance mechanism under the dynamic and static load of surrounding rock, this test device is made up of loading device, monitoring device, and test material processing device three parts; Said loading device It is a multi-field coupling micro-electromechanical-hydraulic servo rock triaxial press; monitoring devices include DS5-8B acoustic emission detection system, ZC2515 intelligent low resistance tester, NM-4A non-metallic ultrasonic instrument, CM-2B TCP static resistance strain g...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a device and a method for testing a crack arrest mechanism of an anchor rod under the action of dynamic and static loads of surrounding rock. The test device is composed of a loading device, a monitoring device and a test material processing device. The loading device is a multi-field coupling micro electro mechanical hydraulic servo rock triaxial press. The monitoring device comprises an acoustic emission detection system, an intelligent low-resistance tester, a nonmetal ultrasonic instrument, a dynamic and static acoustic emission all-in-one machine, a high-speed camera, a strain gauge, a polyethylene insulating plate, a conductive copper sheet, an acoustic emission probe, a wire, a data processor and a computer. According to the test device and method, the transparency characteristic of a material is utilized. The crack arrest mechanism of the anchor rod under the action of dynamic and static loads on surrounding rock is more visually reflected, the distortion problem of monitoring equipment through acoustic emission or CT scanning and the like in the information conversion process is solved, and the device has important significance in researching the crack development condition of rock under the action of dynamic and static loads and the crack arrest mechanism of the anchor rod.
Description
technical field [0001] The invention relates to a test device and method for a crack resistance mechanism based on a transparent rock mass anchor rod acting on surrounding rock under dynamic and static loads, and belongs to the technical field of roadway bolt support test equipment. Background technique [0002] At present, engineering activities such as underground mining of mineral resources and tunnel construction require the excavation of roadways and reliable support for the roadways to ensure the safety of operators and the quality of the project. For most coal mining enterprises in my country, bolt support is still one of the most economical and effective support means. According to statistics, the coal roadway bolting rate of state-owned large and medium-sized coal mines reaches 60%, and some mining areas exceed 90%, or even reach 100%. Therefore, bolting theory and related technologies still have great research value. [0003] However, the research on bolt support...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
CPCG01N3/08G01N2203/0256G01N2203/0067G01N2203/0647
Inventor 王朋飞刘佳男郝晨良刘镇书陈可夯张建利
Owner TAIYUAN UNIV OF TECH