| 黄艳超,胡龙兵,孙瑞显,周萌,杨文超,王佳俊,李宽宽,赵忠宽.基于响应曲面法的粉煤灰基矸石山注浆灭火材料配比优化研究[J].矿产勘查,2025,16(7):1740-1749 |
| 基于响应曲面法的粉煤灰基矸石山注浆灭火材料配比优化研究 |
| Response surface methodology-driven optimization of fly ash grouting composites for coal gangue hill fire suppression |
| 投稿时间：2025-02-28 |
| DOI：10.20008/j.kckc.202507016 |
| 中文关键词: 粉煤灰基 矸石山自燃 注浆灭火 响应曲面法 配合比 |
| 英文关键词: fly ash-based spontaneous combustion in coal gangue hills fire-extinguishing grouting response surface methodology (RSM) formulation ratio |
| 基金项目:本文受天津华北地质勘查局2022年第一批科研项目(B类)“煤矸石山灭火技术研究及应用”(HK2022-B11)资助。 |
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| 中文摘要: |
| 粉煤灰基注浆灭火方式已经成为矸石山自燃治理的重要技术手段，为解决传统粉煤灰基注浆材料扩散不可控、孔隙填充率低、固结强度不高等问题，本文提出应用响应曲面法进行注浆灭火材料配比优化，提升其阻燃封堵性能。结果表明，各因素交互影响中水泥掺量和激发剂掺量的交互作用对粉煤灰浆液扩散半径影响最显著，水灰比和水泥掺量交互作用对浆液结石率和结石体强度影响最显著，最优配比水灰比 0.76、水泥掺量 19.2%、激发剂掺量 17.9%时，浆液扩散半径 2.31 m，结石率 97.1%，结石体抗压强度 7.35 MPa。通过试验、工程对模型预测配比进行验证，结果显示模型精度较高且注浆灭火质量符合相关规范标准要求。研究揭示了多因素交互作用下浆液性能演变机制，为矸石山自燃治理工程提供了材料设计依据，可有效解决矸石山的高温难题，提升环境质量，保障安全生产。 |
| 英文摘要: |
| The fly ash-based grouting fire-extinguishing method has emerged as a critical technical approach for controlling the spontaneous combustion of coal gangue mountains. To address the limitations of traditional flyash-based grouting materials, such as uncontrollable diffusion, low pore-filling efficiency, and insufficient solidifi-cation strength, the response surface methodology (RSM) was employed to optimize the material proportions and en-hance their flame-retardant and sealing properties. The results indicate that among various factor interactions, theinteraction between cement content and activator dosage exerts the most significant influence on the slurry's diffu-sion radius. Meanwhile, the interaction between the water-cement ratio and cement content plays a dominant role indetermining the slurry's consolidation rate and the compressive strength of the consolidated body. Under the optimalconditions of a water-cement ratio of 0.76, cement content of 19.2%, and activator dosage of 17.9%, the slurryachieves a diffusion radius of 2.31 m, a consolidation rate of 97.1%, and a compressive strength of 7.35 MPa. Ex-perimental validation and engineering application confirm the high accuracy of the model predictions, ensuring thatthe grouting fire-extinguishing quality complies with relevant standards. This study elucidates the performance evo-lution mechanism of the slurry under multi-factor interactions, providing a robust material design framework for theself-ignition control of coal gangue mountains. It effectively mitigates the high-temperature issues associated withcoal gangue mountains, thereby enhancing environmental quality and ensuring safe production. |
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