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在被废弃的露天矿井中,储水电站的稳定性分析受到联合采矿的动态表面沉降的影响
Yang Li1,2, Xinghai Lei3, Nan Wang1
1School of Energy and Mining Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China.
Environmental science and pollution research international
|February 14, 2024
概括
在废弃矿山的抽水储能水电厂提供绿色能源储能. 地下和露天采矿的结合导致了显著的表面沉降,影响了植物的稳定性. 接地有效地减轻沉降,确保安全的PSHP运行.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 地质技术工程 地质技术工程
- 可再生能源系统可再生能源系统
背景情况:
- 废弃的矿山为储水电厂 (PSHP) 建设提供了机会,促进绿色采矿和能源储存.
- 由地下和露天采矿 (CUOPM) 产生的动态地表沉降对PSHP的建设和运营构成重大威胁.
- 有效地管理矿山残留资源和利用可再生能源需要解决CUOPM引起的沉降问题.
研究的目的:
- 分析受CUOPM引起的表面沉降影响的PSHP的稳定性.
- 提出和评估一项对的处理方案,以减轻沉降.
- 建立一个动态的表面沉降预测模型和PSHP稳定性评估方法.
主要方法:
- 通过使用InSAR技术和地面监测,调查了goaf分布并测量了表面沉降.
- 分析了CUOPM沉降机制,并基于Knothe时间函数开发了一个动态预测模型.
- 使用FLAC3D和CVISC模型进行CUOPM表面沉降特征的数值模拟.
主要成果:
- 与单个地下采矿相比,CUOPM的结果是表面沉降幅度和影响范围更大.
- 提出的动态预测模型和数值模拟方法显示出高精度和适用性.
- 在PSHP的稳定性评估中,半地下发电厂和下层水库的西侧被确定为严重受影响的地区.
结论:
- 层填充层有效地减轻了CUOPM引起的动态表面沉降.
- 该研究为废弃采矿区PSHP的建设和运营提供了可行的安全保证.
- 这项研究有助于可再生能源储能的可持续发展和采矿现场的重新利用.
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