通过新的联合微重力和地质技术方法,为城市基础设施弹性建模地下不稳定性
Andy Anderson Bery1, Joseph Gnapragasan2, Adedibu Sunny Akingboye3,4
1Geophysics Programme, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
Scientific reports
|October 15, 2025
概括
这项研究引入了一种新的微重力地质技术方法,用于绘制城市地区复杂的地下地质. 该方法可以识别不稳定的地面条件,这对于安全的基础设施基础设计和防止结构故障至关重要.
科学领域:
- 地质物理学 地质物理学
- 地质技术工程 地质技术工程
- 城市地质 城市地质学
背景情况:
- 具有复杂地质的城市地区需要对基础设施进行准确的地下评估.
- 传统的方法与异质的土壤岩石形状作斗争,影响了基础设计.
- 马来西亚的Petaling Jaya因复杂的地质形成而面临基础设施风险.
研究的目的:
- 引入和验证一个新的微重力地质技术方法用于地下表征.
- 在复杂的城市地质环境中识别地下特征和结构不稳定性.
- 为基础设施设计和在具有挑战性的地形中放置基础提供指导.
主要方法:
- 整合Bouguer和剩余重力数据与增强的重力导数和异常深度结构建模.
- 使用的钻井数据,包括标准透测试 (SPT-N) 和岩石质量指定 (RQD).
- 应用先进的重力建模技术来解释地下物质特性和结构特征.
主要成果:
- 识别了低密度的异常,这些异常表明了侵蚀的土壤和破碎的石灰岩.
- 揭示了曲线结构,表明构造或石灰岩溶解,与弱势区域相关.
- 在地下材料中证实了显著的变化,在18至85米深处发现了合格的层.
结论:
- 微重力地质技术方法有效地描述了复杂的城市地下条件.
- 已识别的地质特征带来不均的定居点,沉降和结构损坏的风险.
- 调查结果指导了基础安置,加强策略和恢复弹性基础设施发展的补救措施.
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