Dynamic Behavior of Fault Slip Induced by Stress Waves
Fault slip burst is a serious dynamic hazard in coal mining. A static and dynamic analysis for fault slip was performed to assess the risk of rock burst. A numerical model FLAC3D was established to understand the stress state and mechanical responses of fault rock system. The results obtained from t...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/4386836 |
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| author | Guang-an Zhu Lin-ming Dou Yang Liu Zhen-guo Su Hui Li Yong Kong Zhen-lei Li |
| author_facet | Guang-an Zhu Lin-ming Dou Yang Liu Zhen-guo Su Hui Li Yong Kong Zhen-lei Li |
| author_sort | Guang-an Zhu |
| collection | DOAJ |
| description | Fault slip burst is a serious dynamic hazard in coal mining. A static and dynamic analysis for fault slip was performed to assess the risk of rock burst. A numerical model FLAC3D was established to understand the stress state and mechanical responses of fault rock system. The results obtained from the analysis show that the dynamic behavior of fault slip induced by stress waves is significantly affected by mining depth, as well as dynamic disturbance intensity and the distance between the stope and the fault. The isolation effect of the fault is also discussed based on the numerical results with the fault angle appearing to have the strongest influence on peak vertical stress and velocity induced by dynamic disturbance. By taking these risks into account, a stress-relief technology using break-tip blast was used for fault slip burst control. This technique is able to reduce the stress concentration and increase the attenuation of dynamic load by fracturing the structure of coal and rock. The adoption of this stress-relief method leads to an effective reduction of fault slip induced rock burst (FSIRB) occurrence. |
| format | Article |
| id | doaj-art-f7c57d4d215745f59eb8ec4ead7c06b0 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-f7c57d4d215745f59eb8ec4ead7c06b02025-02-03T05:45:57ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/43868364386836Dynamic Behavior of Fault Slip Induced by Stress WavesGuang-an Zhu0Lin-ming Dou1Yang Liu2Zhen-guo Su3Hui Li4Yong Kong5Zhen-lei Li6School of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Resources and Safe Mining, School of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaFault slip burst is a serious dynamic hazard in coal mining. A static and dynamic analysis for fault slip was performed to assess the risk of rock burst. A numerical model FLAC3D was established to understand the stress state and mechanical responses of fault rock system. The results obtained from the analysis show that the dynamic behavior of fault slip induced by stress waves is significantly affected by mining depth, as well as dynamic disturbance intensity and the distance between the stope and the fault. The isolation effect of the fault is also discussed based on the numerical results with the fault angle appearing to have the strongest influence on peak vertical stress and velocity induced by dynamic disturbance. By taking these risks into account, a stress-relief technology using break-tip blast was used for fault slip burst control. This technique is able to reduce the stress concentration and increase the attenuation of dynamic load by fracturing the structure of coal and rock. The adoption of this stress-relief method leads to an effective reduction of fault slip induced rock burst (FSIRB) occurrence.http://dx.doi.org/10.1155/2016/4386836 |
| spellingShingle | Guang-an Zhu Lin-ming Dou Yang Liu Zhen-guo Su Hui Li Yong Kong Zhen-lei Li Dynamic Behavior of Fault Slip Induced by Stress Waves Shock and Vibration |
| title | Dynamic Behavior of Fault Slip Induced by Stress Waves |
| title_full | Dynamic Behavior of Fault Slip Induced by Stress Waves |
| title_fullStr | Dynamic Behavior of Fault Slip Induced by Stress Waves |
| title_full_unstemmed | Dynamic Behavior of Fault Slip Induced by Stress Waves |
| title_short | Dynamic Behavior of Fault Slip Induced by Stress Waves |
| title_sort | dynamic behavior of fault slip induced by stress waves |
| url | http://dx.doi.org/10.1155/2016/4386836 |
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