Development of an Underground In-Situ Stress Monitoring System for Mining Safety Using Multi Sensor Cell and Wi-Fi Direct Technology
Development of an Underground In-Situ Stress Monitoring System for Mining Safety Using Multi Sensor Cell and Wi-Fi Direct Technology
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DOI：
10.1007/978-3-030-33954-8_30
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发表时间：
2019-12
影响因子：
10.4
通讯作者：
H. Ikeda;Y. Kawamura;Hyong Doo Jang;N. A. B. Mokhtar;Junji Yokokura;Z. P. L. Tungol
中科院分区：
文献类型：
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作者：
H. Ikeda;Y. Kawamura;Hyong Doo Jang;N. A. B. Mokhtar;Junji Yokokura;Z. P. L. Tungol
全球对矿物日益增长的需求促使人们有必要在更深的地方开采矿物。然而，随着深度的增加，岩石地应力的增加，导致采矿工人面临的风险更高，工作条件也越来越危险。矿井扩建所需的竖井、隧道和其他开挖工程的存在，进一步增加了地下矿井的复杂性。地下应力条件的这种复杂性增加了监测和分析地下岩层条件的重要性，因为及早发现对于防止岩石破坏和发生致命事故至关重要。在考虑矿山设计和需要安装的支架时，更好地了解矿山的地下应力条件是至关重要的。开发一种能够获取和传输数据的高效监控系统是必要的。本文提出利用多传感器单元，结合加速度计、陀螺仪和磁力计的功能，以及应变片位移，来连续测量基岩的应力状态。然后，使用Wi-Fi直接通信系统将获得的数据传输到地表，并进行分析，以了解地下应力条件的变化。本文的后半部分还介绍了为验证所提出的监测系统的能力而进行的实验。
The increasing global demand for minerals contributes to the necessity of mineral extraction at greater depths. However, the increase of rock in-situ stress with depth leads to higher risk and increasingly dangerous working conditions faced by mining workers. The presence of shafts, tunnels and other excavations necessary in mine expansions further increase the complexity of underground mines. This complexity of underground stress conditions increases the importance of monitoring and analysis of underground strata conditions, as early detection is crucial in the prevention of rock failure and the occurrence of fatal accidents. A better comprehension of the underground stress conditions in a mine is vital in considering mine design and supports that need to be installed. The development of an efficient monitoring system that can obtain and transmit data is necessary. This paper suggests the utilisation of a multi sensor cell that combines the functions of an accelerometer, gyroscope and a magnetometer, as well as strain gauge displacements to continuously measure the stress conditions of bedrock. The obtained data is then conveyed to the surface using a Wi-Fi Direct communication system and analysed to comprehend the changes in the underground stress conditions. The latter part of this paper also describes the experiments conducted to verify the ability of the proposed monitoring system.