长墙面板宽度设计,预测相应的最大诱导地面表面沉降
Fariborz Matinpour1, Abbas Majdi2
1School of Mining Engineering, College of Engineering, University of Tehran, Tehran, 1439957131, Iran.
Scientific reports
|April 9, 2025
概括
新的分析方法准确地估计了长墙采矿造成的地面沉降. 这些方法有助于设计最佳的长壁面板宽度,考虑煤层厚度和膨胀因素等因素.
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
- 地球科学 地球科学 地球科学
背景情况:
- 长墙采矿是一种普遍的地下煤炭开采技术.
- 前进的煤层会造成屋顶断层,这些断层会扩散到表面,可能导致地面沉降.
- 沉降受到粗材料的膨胀因子的影响.
研究的目的:
- 提出一个新的方程,用于初始的断裂膨胀因子.
- 开发长墙面板宽度设计的分析方法.
- 预测最大诱导的地面表面沉降.
主要方法:
- 开发了一个新的初始断裂膨胀因子的方程.
- 介绍了用于面板宽度设计和沉降预测的两种新分析方法.
- 对关键参数进行了敏感性分析.
- 将拟议的方法与现有方法进行比较,并通过现场测量进行验证.
主要成果:
- 提出的方法可靠地估计了最大诱导的地面表面沉降.
- 灵敏度分析评估了一些参数的影响,如煤层厚度,覆盖深度,拉动角度和膨胀因素.
- 使用现场数据的验证证实了各种面板宽度的准确性.
结论:
- 开发的分析方法为设计长墙面板宽度提供了可靠的方法.
- 这些方法准确地预测了长壁采矿操作引起的地面表面沉降的最大值.
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