Research on the Attenuation Characteristics of AE Signals of Marble and Granite Stone
When an underground rock is deformed or fractured by an external or internal force, the energy will be released in the form of an elastic wave, which is known as the acoustic emission (AE) phenomenon. Extracting useful information from complex AE signals for the early warning of fracture characteris...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/6680347 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850158358902865920 |
|---|---|
| author | Haiyan Wang Ji Ma Feng Du Gongda Wang Quan Zhang Xiaoshen Li |
| author_facet | Haiyan Wang Ji Ma Feng Du Gongda Wang Quan Zhang Xiaoshen Li |
| author_sort | Haiyan Wang |
| collection | DOAJ |
| description | When an underground rock is deformed or fractured by an external or internal force, the energy will be released in the form of an elastic wave, which is known as the acoustic emission (AE) phenomenon. Extracting useful information from complex AE signals for the early warning of fracture characteristics and the damage monitoring of rock materials is of great significance for the prevention and control of dynamic disasters in coal mines. In this work, by taking rod-shaped rocks and plate-shaped rocks with different lithologies as the research objects, the elastic wave propagation characteristics of the rod-shaped rocks and plate-shaped rocks were studied by a self-constructed experimental platform. The results demonstrate that the elastic wave attenuation of the rod-shaped marble was the fastest, and the elastic wave attenuation characteristics of the three groups of rod-shaped granite were similar. The attenuation of the P-wave preceded that of the S-wave. With the increase in the propagation distance, the amplitude of the large-scale plate-shaped rock showed an approximate exponential attenuation characteristic. The elastic wave attenuation of the plate-shaped granite in the 0° direction was stronger than that of the plate-shaped marble, and it was weaker than that of the plate-shaped marble in the 45° and 90° directions. The energy changes in marble were more severe than those in granite. The main dominant energy of the AE signals of experimental rock was concentrated in the range of 0–176.78 kHz, and part of the residual energy was located in the high-frequency band of 282.25–352.56 kHz. |
| format | Article |
| id | doaj-art-63d39314fe8e42a0ae2ecf10132d3e6d |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-63d39314fe8e42a0ae2ecf10132d3e6d2025-08-20T02:23:53ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/66803476680347Research on the Attenuation Characteristics of AE Signals of Marble and Granite StoneHaiyan Wang0Ji Ma1Feng Du2Gongda Wang3Quan Zhang4Xiaoshen Li5China Coal Research Institute, Beijing 100013, ChinaSchool of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, ChinaBeijing Key Laboratory for Precise Mining of Intergrown Energy and Resources, China University of Mining & Technology (Beijing), Beijing 100083, ChinaState Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, ChinaTingnan Coal Industry Co., Ltd., Taiyuan, Shanxi 713600, ChinaTingnan Coal Industry Co., Ltd., Taiyuan, Shanxi 713600, ChinaWhen an underground rock is deformed or fractured by an external or internal force, the energy will be released in the form of an elastic wave, which is known as the acoustic emission (AE) phenomenon. Extracting useful information from complex AE signals for the early warning of fracture characteristics and the damage monitoring of rock materials is of great significance for the prevention and control of dynamic disasters in coal mines. In this work, by taking rod-shaped rocks and plate-shaped rocks with different lithologies as the research objects, the elastic wave propagation characteristics of the rod-shaped rocks and plate-shaped rocks were studied by a self-constructed experimental platform. The results demonstrate that the elastic wave attenuation of the rod-shaped marble was the fastest, and the elastic wave attenuation characteristics of the three groups of rod-shaped granite were similar. The attenuation of the P-wave preceded that of the S-wave. With the increase in the propagation distance, the amplitude of the large-scale plate-shaped rock showed an approximate exponential attenuation characteristic. The elastic wave attenuation of the plate-shaped granite in the 0° direction was stronger than that of the plate-shaped marble, and it was weaker than that of the plate-shaped marble in the 45° and 90° directions. The energy changes in marble were more severe than those in granite. The main dominant energy of the AE signals of experimental rock was concentrated in the range of 0–176.78 kHz, and part of the residual energy was located in the high-frequency band of 282.25–352.56 kHz.http://dx.doi.org/10.1155/2020/6680347 |
| spellingShingle | Haiyan Wang Ji Ma Feng Du Gongda Wang Quan Zhang Xiaoshen Li Research on the Attenuation Characteristics of AE Signals of Marble and Granite Stone Advances in Civil Engineering |
| title | Research on the Attenuation Characteristics of AE Signals of Marble and Granite Stone |
| title_full | Research on the Attenuation Characteristics of AE Signals of Marble and Granite Stone |
| title_fullStr | Research on the Attenuation Characteristics of AE Signals of Marble and Granite Stone |
| title_full_unstemmed | Research on the Attenuation Characteristics of AE Signals of Marble and Granite Stone |
| title_short | Research on the Attenuation Characteristics of AE Signals of Marble and Granite Stone |
| title_sort | research on the attenuation characteristics of ae signals of marble and granite stone |
| url | http://dx.doi.org/10.1155/2020/6680347 |
| work_keys_str_mv | AT haiyanwang researchontheattenuationcharacteristicsofaesignalsofmarbleandgranitestone AT jima researchontheattenuationcharacteristicsofaesignalsofmarbleandgranitestone AT fengdu researchontheattenuationcharacteristicsofaesignalsofmarbleandgranitestone AT gongdawang researchontheattenuationcharacteristicsofaesignalsofmarbleandgranitestone AT quanzhang researchontheattenuationcharacteristicsofaesignalsofmarbleandgranitestone AT xiaoshenli researchontheattenuationcharacteristicsofaesignalsofmarbleandgranitestone |