<br>使用卫星雷达干涉测量技术远程监测矿井水回弹和环境风险,Science of the Total Environment

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使用卫星雷达干涉测量技术远程监测矿井水回弹和环境风险
Science of the Total Environment ( IF 8.2 ) Pub Date : 2022-10-07 , DOI: 10.1016/j.scitotenv.2022.159272
David Gee ₁ , Andrew Sowter ₁ , Ahmed Athab ₁ , Stephen Grebby ₂ , Zhenming Wu ₃ , Kateryna Boiko ₄

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煤田废弃后停止脱水会导致矿井水上升，这可能会给当地和区域水文地质状况带来重大变化。监测这种变化具有挑战性，但对于避免地下水污染和地表洪水等有害后果至关重要。使用卫星雷达干涉测量法（InSAR）的逆向建模方法已被证明能够回顾性地绘制矿井水位变化，但是，需要能够在变化发生时远程监测变化。该文利用InSAR获得的地面变形测量数据，开发了一种远程监测矿水时空上升的方法，该方法可以近乎实时地实现。该方法在乌克兰的 Horlivka 采矿群上进行了演示，由于缺乏安全的地面通道，没有其他可行的方法。在用于预测矿井水到达自然地下水位和地球表面的时间之前，这些结果通过原位测量进行了盲目验证。研究结果表明，由于顿巴斯的军事冲突，预计潜在放射性矿井水将在 2024 年 5 月至 8 月期间达到自然地下水位，从而发生环境灾难。

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Remote monitoring of minewater rebound and environmental risk using satellite radar interferometry

The cessation of dewatering following coalfield abandonment results in the rise of minewater, which can create significant changes in the local and regional hydrogeological regime. Monitoring such change is challenging but essential to avoiding detrimental consequences such as groundwater contamination and surface flooding. Inverse modelling methods using satellite radar interferometry (InSAR) have proven capable for retrospectively mapping minewater level changes, however, there is a need for the capability to remotely monitor changes as they occur. In this study, ground deformation measurements obtained from InSAR are used to develop a method to remotely monitor the spatio-temporal rise of minewater, which could be implemented in near real-time. The approach is demonstrated over the Horlivka mining agglomeration, Ukraine, where there is no other feasible approach possible due to a lack of safe ground access. The results were blindly validated against in-situ measurements before being used to forecast the time until minewater will reach the natural water table and Earth's surface. The findings reveal that, as a result of military conflict in Donbas, an environmental catastrophe could occur where potentially radioactive minewater is forecast to reach the natural water table between May and August of 2024.

更新日期：2022-10-07

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