煤炭工程 ›› 2026, Vol. 58 ›› Issue (4): 26-32.doi: 10.11799/ce202604004

• 设计技术 • 上一篇    下一篇

西湾露天煤矿采区间留沟模式及高度研究

韩英华,张建清,董春雨,王恒荣,马 力   

  1. 1. 国家能源集团神延煤炭有限责任公司 西湾露天煤矿,陕西 榆林 719000

    2. 西安科技大学 能源与矿业工程学院,陕西 西安 710054

  • 收稿日期:2025-02-17 修回日期:2025-04-29 出版日期:2026-04-10 发布日期:2026-05-12
  • 通讯作者: 韩英华 E-mail:1030657393@qq.com

Research on the retention mode and height of trenches between mining areas of Xiwan Open-pit Coal Mine #br#

  • Received:2025-02-17 Revised:2025-04-29 Online:2026-04-10 Published:2026-05-12

摘要:

为减少西湾露天煤矿采区转向期间二、三采区二次剥离量,在加高内排土场的条件下,对比分析倒梯形与倒三角两种留沟模式对剥离物料运输系统的影响,构建了留沟内排总费用模型。基于成本费用最小法,建立了留沟高度经济优化模型。研究结果表明:当留沟区域剥离物料量一定时,倒梯形留沟模式相对倒三角留沟模式对剥离物料运输系统影响较小;倒梯形留沟模式相对全压帮内排模式节约成本呈先增大后减小的趋势,相邻采区最佳留沟高度为45m,倒梯形留沟内排相对全压帮内排节约8230万元,具有良好的经济技术效应。

关键词:

留沟内排, 倒梯形留沟, 倒三角留沟, 运输系统, 二次剥离

Abstract:

In order to reduce the secondary stripping quantity of the second and third mining areas during the turning period of the Xiba open-pit coal mine mining area the impact of two leftover ditch modes, namely, inverted trapezoidal and inverted triangular, on the stripping material transportation system is compared and analyzed under the condition of raising the height of internal dumping site, and a total cost model of leftover ditch internal dumping is constructed. The economic optimization model of ditch height is established based on the minimum cost method. The results show when the amount of stripped materials in the ditch area is certain, the inverted trapezoidal ditch mode has a relatively small impact on the stripped material transportation system compared with the inverted ditch mode; The cost saving of the inverted trapezoidal ditch mode relative to the full pressure strip internal dumping mode is increasing first and then decreasing, and the optimal ditch height of adjacent mining area is 45m, which saves 82.3 million yuan compared with the full pressure strip internal dumping, and it has a good economic and technological.

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