工程地质学对四个废物填埋场的案例研究进行了比较分析
Marian Marschalko1, Dariusz Popielarczyk2, Petr Vicherek1
1Department of Geological Engineering, Faculty of Mining and Geology, VSB-Technical University of Ostrava, 17 listopadu 15, 708 33, Ostrava, Czech Republic.
Scientific reports
|June 21, 2023
概括
捷克四个垃圾填埋场的工程地质研究揭示了自然密封屏障的不足. 所有地点都需要人为技术障碍,以防止污染由于地下不透气性不足而传播.
科学领域:
- 工程地质工程地质学
- 环境科学 环境科学
- 地质技术工程 地质技术工程
背景情况:
- 垃圾填埋场需要有效的自然密封障碍,以防止环境污染.
- 工程地质调查通常侧重于承载能力,与垃圾填埋场障碍评估不同.
- 地下土壤的透性和几何结构是评估垃圾填埋场自然密封障碍的关键标准.
研究的目的:
- 对摩拉维亚 (捷克共和国) 的四个垃圾填埋场进行比较研究,评估它们的地质地下作为自然密封屏障.
- 根据不透性 (过系数) 和所需的几何形状来评估地下层的适用性.
- 将垃圾填埋场的工程地质调查要求与其他工程结构的工程地质调查要求进行比较.
主要方法:
- 使用两种不同的方法 (模型1和模型2) 对四个垃圾填埋场 (Velké Pavlovice,Kvitkovice,Prakšice,Horní Suchá) 的评估.
- 模型1:评估了3米层 (Kf ≤1.0 * 10-9 m/s) 或30米层 (Kf ≤1.0 * 10-8 m/s) 的地下不透性.
- 模型2:以1米层 (Kf ≤1.0 * 10-9 m/s) 评估地下不透性.
主要成果:
- 没有一个被调查的垃圾填埋场拥有符合要求的深度和过系数的自然密封屏障 (Kf范围从1.8 * 10-9到3.9 * 10-9 m/s).
- 所有的案例研究表明,自然地质屏障不足以满足监管或安全标准.
- 所有评估的垃圾填埋场都需要安装人为技术障碍.
结论:
- 该研究强调,与传统结构相比,废物填埋场的工程地质调查存在显著差异.
- 有效预防污染的传播需要强大的密封屏障,通常需要人工干预.
- 评估地底透性对于确保废物处理场所的环境完整性至关重要.
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