关于纤维增强聚合物固定电缆在深道道路中的承载强度的研究
Lei Wang1,2, Yilin Wu3, Dongmei Chen4
1School of Hydraulic and Civil Engineering, Ludong University, Yantai, 264025, Shandong, China.
Scientific reports
|February 10, 2025
概括
屋顶切割和道路支 (RCRR) 技术提高了煤矿开采的效率. 纤维增强聚合物 (FRP) 固定电缆在具有挑战性的地质条件下显著提高了支道路的稳定性.
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
- 材料科学 材料科学 材料科学
背景情况:
- 屋顶切割和道路支 (RCRR) 是一种具有经济效益的高效煤炭开采方法.
- 在复杂的地质条件下 (高压力,水压,弱岩) 保持道路屋顶稳定性挑战了RCRR的有效性.
- 纤维增强聚合物 (FRP) 固定电缆为屋顶稳定性控制提供了高强度,低成本的解决方案.
研究的目的:
- 在RCRR公路上的FRP固定电缆的承载强度计算公式.
- 调查FRP接电缆性能和布局参数对屋顶稳定的影响.
- 为实施FRP在RCRR项目中的定提供理论和实践见解.
主要方法:
- 对于FRP固定电缆的轴承强度计算公式的推导.
- 分析FRP电缆强度参数 (凝聚力,摩擦角度,预装载) 和布局 (间距,长度,直径) 的影响.
主要成果:
- 增加的强度参数,预载荷,长度和FRP接电缆的直径提高了道路承载强度.
- 接地加固进一步提高了保留的道路屋顶的稳定性.
- 该研究提供了对FRP接电缆在RCRR中的性能的定量理解.
结论:
- 高强度,高预负荷的FRP固定电缆与接是有效的,以确保保留道路屋顶的稳定性.
- 由此产生的公式和分析为RCRR技术的工程应用提供了宝贵的指导.
- 这项研究通过解决关键的稳定性问题,促进了RCRR的更广泛采用.
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