Device and method for testing dynamic mechanical properties of rock under gas-solid coupling state
A technology of dynamic mechanics and testing methods, applied in measuring devices, using stable tension/pressure to test material strength, scientific instruments, etc., to achieve accurate dynamic mechanical properties and ensure airtightness
Active Publication Date: 2022-07-05
CENT SOUTH UNIV
View PDF20 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The research on the dynamic characteristics of coal and rock mainly relies on the Hopkinson compression bar test system. The predecessors have continuously modified the Hopkinson compression bar system to meet the requirements of different tests, and tested a variety of coal and rock dynamic properties, but most of them Ignoring the influence of gas on the mechanical properties of coal and rock, it is necessary to design a test device for the dynamic performance of gas-solid coupling rock
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 Construction
[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0054]In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial, The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or p...
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
Login to View More Abstract
The invention discloses a device and a method for testing the dynamic mechanical properties of rock in a gas-solid coupling state, aiming at realizing the testing of the dynamic mechanical properties of rock samples in the gas-solid coupling state. To this end, the device for testing rock dynamic mechanical properties under gas-solid coupling state provided by this application includes elastic sleeve, guide sleeve, confining pressure loading system, confining pressure loading system, inflation system and Hopkinson compression bar test system, elastic sleeve The rock sample is matched inside the body, the guide sleeves are fixedly installed at both ends of the elastic sleeve body, the confining pressure loading system is set outside the elastic sleeve, and the incident rod and transmission rod of the Hopkinson compression bar test system are respectively connected from the two ends of the elastic sleeve body. The guide sleeve at the end is inserted into and in contact with the rock sample. There are sealing rings between the incident rod and the transmission rod and the corresponding guide sleeves. The inflation system is used to inflate a specific gas into the space between the two sealing rings in the elastic sleeve. inside, so that the gas is adsorbed by the rock sample.
Description
technical field [0001] The invention belongs to the technical field of rock mechanical performance testing, and in particular relates to a rock dynamic mechanical performance testing device and method in a gas-solid coupling state. Background technique [0002] The gradual increase in the mining depth of coal mines leads to the continuous increase of in-situ stress, gas pressure and gas content, the structure of the stope is also more and more complex, and the combined stress and gas dynamic disasters are becoming more and more serious and complex. In the process of coal mining, far-field seismic sources, such as roof and floor fractures or activities, fault activation and vibration blasting and other artificial disturbances will generate dynamic loads, causing rock bursts or coal and gas outbursts. The research on the dynamic characteristics of coal and rock mainly relies on the Hopkinson pressure bar test system. The predecessors have continuously modified the Hopkinson pr...
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 Patents(China)
IPC IPC(8): G01N3/12G01N3/307
CPCG01N3/12G01N3/307G01N2203/0003G01N2203/001G01N2203/0019G01N2203/0044G01N2203/0048
Inventor 陶明赵岩洪志先庄登登程文青吴英杰罗豪郭懿德吴阳春刘惠林
Owner CENT SOUTH UNIV