连接数据驱动的,以物理为基础的抽取诱导沉降的建模,适用于泰国曼谷
Jenny T Soonthornrangsan, Mark Bakker1, Femke C Vossepoel2
1Department of Water Management, Faculty of Civil Engineering and Geoscience, Delft University of Technology, Stevinweg 1, 2628 CN, Delft, The Netherlands.
Ground water
|October 11, 2024
概括
这项研究引入了一种新的方法来模拟地下水抽取造成的土地沉降,即使数据有限. 这种数据驱动和基于物理的方法准确地模拟了泰国曼谷的地下水动态和沉降情况.
科学领域:
- 地质科学 地质科学
- 水文学的水文学
- 环境工程 环境工程
背景情况:
- 地下水的退出是土地沉降的主要驱动因素,但研究往往受数据的可用性限制.
- 精确的沉降模拟需要综合数据,包括地下水位,土地变形和抽水率.
研究的目的:
- 开发和验证一种节的,链接的,数据驱动的和基于物理的方法来模拟抽引起的土地沉降.
- 将这种方法应用于泰国曼谷,该地区的沉降数据有限但至关重要.
主要方法:
- 利用时间序列分析与响应函数来模拟含水层头部.
- 采用1D扩散模型用于粘土层头部,使用含水层头部作为边界条件.
- 集成模拟头用于模拟土地沉降.
主要成果:
- 在含水层的地下水头模拟中获得了2.8m的平均RMSE.
- 在模拟的土地沉降中获得了平均RMSE1.6厘米/年,根据稀疏的测量进行验证.
- 确定了局部抽变异作为影响某些站点模型性能的关键因素.
结论:
- 开发的方法表明,在数据稀缺的地区,模拟送诱导的沉降具有显著的潜力.
- 这种方法为了解和减轻全球土地沉降风险提供了可行的解决方案.
- 进一步细化可能涉及将局部抽水数据纳入,以提高准确性.
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