A Laser-Based Device for Work Site Stability Assessment

描述（由申请人提供）：摘要：提出了一种基于激光的声发射（AE）检测设备，用于工地结构稳定性评估。这种新设备将利用激光超声波、人工智能（AI）和先进的声发射技术的创新，为采矿工人提供独特的即时、真实的时间稳定性评估，评估工作环境中的直接岩石结构，这在过去是无法实现的。基于二波混频/光生电动势技术的非线性光学干涉法将用于矿山岩石结构声发射信号检测。通过波形模式识别建立了Al判据，用于识别矿区不稳定区域。这项研究还将导致一个独特的非接触式监测装置的声发射/微震研究，这将是非常有用的，在许多领域的应用。第二阶段研究的主要目标是开发AE探测器的原型，并在现实世界的采矿设施中进行测试。主要目标包括六个具体目标：1。仪器开发，2.田间试验前准备，3.现场数据收集，4. AI标准开发，5.系统集成和现场试验; 6.文件和报告。与公共卫生的相关性：该改造将有助于减少因顶板福尔斯、帮壁溃缩、采场坍塌、边坡滑坡等造成的职业伤亡事故。在采矿业。这项研究和开发涉及矿工的安全，有助于确保矿工享有“安全和健康的工作条件”的权利（1970年《职业安全和健康法》）。

DESCRIPTION (provided by applicant): Summary: A laser-based acoustic emission (AE) detection device is proposed for work site structural stability assessment. This new device will take advantage of innovations in laser ultrasonics, artificial intelligence (Al) and advanced acoustic emission technology to provide mine workers with a unique instant, real time stability assessment of immediate rock structures in the working environment, which was not attainable in the past. Nonlinear optical interferometry based on two-wave mixing / photo-induced electromotive force techniques will be used for AE signal detection from rock structures in mine sites. Al criteria will be established by wave pattern recognition to identify unstable areas in mine sites. This research will also result in a unique non-contact monitoring device for acoustic emission/microseismic studies, which will be very useful in many areas of application. The primary objective of the Phase II research is to develop the prototype of the AE detector and test it in real-world mining facilities. The primary objective consists of six specific aims: 1. instrumentation development, 2. pre-field experiment preparation, 3. in-situ data collection, 4. Al criteria development, 5. system integration and in-situ trial, and 6. documentation and reporting. Relevance to Public Health: The innovation will contribute to a reduction the occupational injuries and fatalities caused by roof falls, sidewall crumples, stope collapses, and slope slides, etc., in the mining industry. The research and development addresses the miner's safety and contributes to ensuring the mineworker's right to "safe and healthful working conditions" (Occupational Safety and Health Act of 1970).