Method to Realize the Tilt Monitoring and Instability Prediction of Hazardous Rock on Slopes
Hazardous rock refers to an unstable rock block that is cut by weak structural planes and gradually separates from the slope. Hazardous rock generally collapses rapidly, and at present, it is challenging to effectively identify the separation degree of the rock and accurately predict its sudden fail...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9965113 |
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| _version_ | 1832549674274258944 |
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| author | Zheng He Mowen Xie Zhengjun Huang Guang Lu Bo Yan Jianfei Wang |
| author_facet | Zheng He Mowen Xie Zhengjun Huang Guang Lu Bo Yan Jianfei Wang |
| author_sort | Zheng He |
| collection | DOAJ |
| description | Hazardous rock refers to an unstable rock block that is cut by weak structural planes and gradually separates from the slope. Hazardous rock generally collapses rapidly, and at present, it is challenging to effectively identify the separation degree of the rock and accurately predict its sudden failure. In this study, focusing on a hazardous rock with tilt behavior, a microelectromechanical system (MEMS) acceleration sensor is used in combination with the calculation principle of the included angle of the space vector to establish a microtilt angle monitoring method. A physical model test is designed, in which a thermally sensitive material (with heat-sensitive strength) is adopted as the weak structural plane of the hazardous block, and the change in the tilt angle during the process of block instability is monitored at a sampling frequency of 1000 Hz. The test results show that the accelerated evolution of the tilt angle is a precursor to hazardous rock failure. In the rapid acceleration stage, the reciprocal of the tilt angle rate is approximately linear with time, and a correlation equation is obtained. Assuming that the change rate of the tilt angle is approximately infinite, the failure time of hazardous rock can be predicted using the correlation equation. In addition, the effectiveness of the instability prediction method based on microtilt angle monitoring is verified by analyzing the long-term monitoring data of hazardous rock. |
| format | Article |
| id | doaj-art-a06228ede8c04aedb23f488c15d2ba28 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-a06228ede8c04aedb23f488c15d2ba282025-02-03T06:10:46ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/99651139965113Method to Realize the Tilt Monitoring and Instability Prediction of Hazardous Rock on SlopesZheng He0Mowen Xie1Zhengjun Huang2Guang Lu3Bo Yan4Jianfei Wang5School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaBeijing Zhongguancun Institute of Safety Science Co., Ltd., Beijing 102199, ChinaYunnan Construction and Investment Holding Group Co., Yunnan, Kunming 650000, ChinaHazardous rock refers to an unstable rock block that is cut by weak structural planes and gradually separates from the slope. Hazardous rock generally collapses rapidly, and at present, it is challenging to effectively identify the separation degree of the rock and accurately predict its sudden failure. In this study, focusing on a hazardous rock with tilt behavior, a microelectromechanical system (MEMS) acceleration sensor is used in combination with the calculation principle of the included angle of the space vector to establish a microtilt angle monitoring method. A physical model test is designed, in which a thermally sensitive material (with heat-sensitive strength) is adopted as the weak structural plane of the hazardous block, and the change in the tilt angle during the process of block instability is monitored at a sampling frequency of 1000 Hz. The test results show that the accelerated evolution of the tilt angle is a precursor to hazardous rock failure. In the rapid acceleration stage, the reciprocal of the tilt angle rate is approximately linear with time, and a correlation equation is obtained. Assuming that the change rate of the tilt angle is approximately infinite, the failure time of hazardous rock can be predicted using the correlation equation. In addition, the effectiveness of the instability prediction method based on microtilt angle monitoring is verified by analyzing the long-term monitoring data of hazardous rock.http://dx.doi.org/10.1155/2021/9965113 |
| spellingShingle | Zheng He Mowen Xie Zhengjun Huang Guang Lu Bo Yan Jianfei Wang Method to Realize the Tilt Monitoring and Instability Prediction of Hazardous Rock on Slopes Advances in Civil Engineering |
| title | Method to Realize the Tilt Monitoring and Instability Prediction of Hazardous Rock on Slopes |
| title_full | Method to Realize the Tilt Monitoring and Instability Prediction of Hazardous Rock on Slopes |
| title_fullStr | Method to Realize the Tilt Monitoring and Instability Prediction of Hazardous Rock on Slopes |
| title_full_unstemmed | Method to Realize the Tilt Monitoring and Instability Prediction of Hazardous Rock on Slopes |
| title_short | Method to Realize the Tilt Monitoring and Instability Prediction of Hazardous Rock on Slopes |
| title_sort | method to realize the tilt monitoring and instability prediction of hazardous rock on slopes |
| url | http://dx.doi.org/10.1155/2021/9965113 |
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