A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts
Rockfalls are an important factor affecting underground engineering safety. However, there has been limited progress in understanding and predicting these disasters in the past few years. Therefore, a large-scale three-dimensional experimental simulation apparatus to study failure mechanisms of rock...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/7/2068 |
| _version_ | 1827286545188519936 |
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| author | Gongfeng Xin Guangyu Yang Fan Li Hongliang Liu |
| author_facet | Gongfeng Xin Guangyu Yang Fan Li Hongliang Liu |
| author_sort | Gongfeng Xin |
| collection | DOAJ |
| description | Rockfalls are an important factor affecting underground engineering safety. However, there has been limited progress in understanding and predicting these disasters in the past few years. Therefore, a large-scale three-dimensional experimental simulation apparatus to study failure mechanisms of rockfalls occurring during underground engineering was developed. This apparatus, measuring 4 m × 4 m × 3.3 m in size, can achieve vertical and horizontal symmetric loading. It not only simulates the structure and stress environment of a rock mass but also simulates the stepwise excavation processes involved in underground engineering. A complete simulation experiment of rockfalls in an underground engineering context was performed using this apparatus. Dynamic evolution characteristics of block displacement, temperature, natural vibration frequency, and acoustic emissions occurring during rockfalls were studied during the simulation. These data indicate there are several indicators that could be used to predict rockfalls in underground engineering contexts, leading to better prevention and control. |
| first_indexed | 2024-04-24T10:35:16Z |
| format | Article |
| id | doaj.art-12ce3930d4724822af0b0767801cb101 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-24T10:35:16Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-12ce3930d4724822af0b0767801cb1012024-04-12T13:26:08ZengMDPI AGSensors1424-82202024-03-01247206810.3390/s24072068A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering ContextsGongfeng Xin0Guangyu Yang1Fan Li2Hongliang Liu3Shandong Key Laboratory of Highway Technology and Safety Assessment, Jinan 250101, ChinaSchool of Qilu Transportat, Shandong University, Jinan 250002, ChinaShandong Key Laboratory of Highway Technology and Safety Assessment, Jinan 250101, ChinaSchool of Qilu Transportat, Shandong University, Jinan 250002, ChinaRockfalls are an important factor affecting underground engineering safety. However, there has been limited progress in understanding and predicting these disasters in the past few years. Therefore, a large-scale three-dimensional experimental simulation apparatus to study failure mechanisms of rockfalls occurring during underground engineering was developed. This apparatus, measuring 4 m × 4 m × 3.3 m in size, can achieve vertical and horizontal symmetric loading. It not only simulates the structure and stress environment of a rock mass but also simulates the stepwise excavation processes involved in underground engineering. A complete simulation experiment of rockfalls in an underground engineering context was performed using this apparatus. Dynamic evolution characteristics of block displacement, temperature, natural vibration frequency, and acoustic emissions occurring during rockfalls were studied during the simulation. These data indicate there are several indicators that could be used to predict rockfalls in underground engineering contexts, leading to better prevention and control.https://www.mdpi.com/1424-8220/24/7/2068underground engineeringrockfallsphysical simulationlarge-scale experiment |
| spellingShingle | Gongfeng Xin Guangyu Yang Fan Li Hongliang Liu A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts Sensors underground engineering rockfalls physical simulation large-scale experiment |
| title | A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts |
| title_full | A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts |
| title_fullStr | A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts |
| title_full_unstemmed | A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts |
| title_short | A Large-Scale Three-Dimensional Apparatus to Study Failure Mechanisms of Rockfalls in Underground Engineering Contexts |
| title_sort | large scale three dimensional apparatus to study failure mechanisms of rockfalls in underground engineering contexts |
| topic | underground engineering rockfalls physical simulation large-scale experiment |
| url | https://www.mdpi.com/1424-8220/24/7/2068 |
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