在回填地带采矿中,岩层运动和表面沉降的机械预测方法
Xiaojun Zhu1,2, Feng Zha3, Guangli Guo4
1Anhui Province Engineering Laboratory for Mine Ecological Remediation, Anhui University, Hefei, 230601, People's Republic of China. zhuxiaojun@ahu.edu.cn.
Scientific reports
|December 29, 2024
概括
一个新的机械模型预测了回填条式煤矿开采的表面和层沉降. 这种方法提高了对地质影响的理解,并有助于开发更安全,更有效的采矿实践.
科学领域:
- 地质工程是地质工程.
- 采矿工程 采矿工程 采矿工程
- 环境科学 环境科学
背景情况:
- 地下煤炭开采导致地质灾害,特别是沉降.
- 填充带采矿减轻了沉降,并促进了煤炭回收.
- 准确预测采矿影响对于可持续实践至关重要.
研究的目的:
- 开发一个全面的机械模型,用于预测回填条式采矿中的表面和层沉降情况.
- 分析地质和采矿参数对岩层运动的影响.
- 为回填条式采矿技术提供理论指导.
主要方法:
- 一个新的机械模型将层分为两个系统:在温克勒基础上的矩形平面模型 (下层) 和空间层模型 (上层).
- 为主要关键层 (MKS) 开发沉降函数,并将其传输到上层层模型.
- 通过数值和类似材料模拟进行验证,以分析层移动特征.
主要成果:
- 拟议的机械模型成功地预测了层和表面沉降.
- 通过模拟方法验证了模型的可行性和准确性.
- 分析揭示了地质和采矿条件对岩层运动模式的影响.
结论:
- 开发的机械模型提供了一种科学方法,以了解在回填条式采矿中层的运动.
- 这项研究为优化回填条式采矿操作提供了必要的理论指导.
- 该模型有助于减轻与煤炭开采相关的环境问题.
相关概念视频
Design Example: Maintaining Level of an Embankment
34
Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
34
Slump Test
104
The slump test is a widely used method to measure the workability of concrete. It employs a 12-inch high truncated cone mold that tapers from eight inches at the base to four inches at the top. Before testing, the mold is securely attached to a flat base and dampened.
Concrete is poured into the mold in three layers to conduct the test. Each layer is compacted 25 times with a steel tamping rod, which has a five-eighths-inch diameter and a rounded end, to ensure even distribution and eliminate...
Concrete is poured into the mold in three layers to conduct the test. Each layer is compacted 25 times with a steel tamping rod, which has a five-eighths-inch diameter and a rounded end, to ensure even distribution and eliminate...
104


