Underwater experimental study on breaking characteristics of deep-sea seafloor massive sulfide

IF 4.3 2区工程技术 Q1 ENGINEERING, OCEAN

Applied Ocean Research Pub Date : 2024-11-12 DOI:10.1016/j.apor.2024.104311

Bei Zhang , Haining Lu , Jianmin Yang , Zhongqin Lin , Shihang Liu

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引用次数: 0

Abstract

Research on cutting seafloor massive sulfide is in its initial stages; however, the breaking characteristics are unclear. In addition, the influence of water was not considered in the experimental research, and the reliability of the experimental results was low. Therefore, this study conducted experimental research on underwater cutting characteristics based on a high-fidelity simulation material. The mean and maximum cutting forces increased linearly with the cutting depth. The load of cutting high compressive strength (HUCS) rocks is 2.78 times that of cutting low compressive strength (LUCS) rocks. With an increase in the cutting depth, the percentage of powdered rock decreased, the percentage of blocks increased, and the overall chip size increased. The overall chip size obtained by cutting the HUCS rock was larger than that obtained by cutting the LUCS rock. As the cutting depth increases, the cutting-specific energy consumption decreases. Cutting HUCS rock consumes more energy than cutting LUCS rock. In summary, the cutting depth of HUCS and LUCS rocks should be recommended to be 16mm. This research is of guiding significance for the optimisation of the mining head structure and mining engineering practice.

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深海海底块状硫化物破碎特性的水下实验研究

有关切割海底块状硫化物的研究正处于起步阶段，但其破碎特性尚不明确。此外，实验研究未考虑水的影响，实验结果的可靠性较低。因此，本研究以高保真模拟材料为基础，对水下切割特性进行了实验研究。平均切削力和最大切削力随切削深度呈线性增长。切割高抗压强度（HUCS）岩石的负荷是切割低抗压强度（LUCS）岩石的 2.78 倍。随着切割深度的增加，粉末状岩石的比例减少，块状岩石的比例增加，整体切屑尺寸增大。切割高抗压强度（HUCS）岩石得到的总体切屑尺寸大于切割低抗压强度（LUCS）岩石得到的总体切屑尺寸。随着切割深度的增加，切割能耗也在降低。切割 HUCS 岩石比切割 LUCS 岩石消耗更多能量。综上所述，建议 HUCS 和 LUCS 岩石的切割深度为 16 毫米。这项研究对优化采矿头结构和采矿工程实践具有指导意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Ocean Research 地学-工程：大洋

CiteScore

8.70

自引率

7.00%

发文量

316

审稿时长

59 days

期刊介绍： The aim of Applied Ocean Research is to encourage the submission of papers that advance the state of knowledge in a range of topics relevant to ocean engineering.