Research on Adaptability of CS and BT Hobs to Break Soft and Hard Rock

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-08-06 DOI:10.1007/s12205-024-2753-1

Xuhui Zhang, Kang Long, TaoTan, Yashi Liao, Jianfang Li, Jingping Liao

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Abstract

To study the breaking differences between CS hob and BT hob under hard rock (rust rock) and soft rock (red sandstone), and reveal their adaptability in the two rock formations, the vertical breaking experiments of two hobs are conducted. Then, the rock breaking load, rock breaking difficulty coefficient, and rock breaking efficiency of the two hobs in different hob spacings are analyzed and discussed. The result denotes that the CS hob has a greater rock breaking load and rock breaking difficulty compared to the BT hob. Meanwhile, when the breaking object changes from hard rock (rust rock) to soft rock (red sandstone), both types of hobs’ rock breaking loads decrease, but the CS hob’s decrease is significantly greater than the BT hob’s. Meanwhile, the optimal hob spacing for the CS hob increases from 40 mm to 50 mm, whereas for the BT hob, it remains at 30 mm. Considering the rock breaking load and rock breaking efficiency of the hobs together, the CS hob is found to be more suitable for soft rock formation, while the BT hob is more suitable for hard rock formation.

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CS 和 BT 滚刀破碎软硬岩石的适应性研究

为了研究 CS 滚刀和 BT 滚刀在硬岩（铁锈岩）和软岩（红砂岩）下的破岩差异，揭示其在两种岩层中的适应性，进行了两种滚刀的垂直破岩实验。然后，对不同滚刀间距下两种滚刀的破岩载荷、破岩难度系数和破岩效率进行了分析和讨论。结果表明，与 BT 滚刀相比，CS 滚刀具有更大的破岩载荷和破岩难度。同时，当破碎对象从硬岩（锈岩）变为软岩（红砂岩）时，两种滚刀的破岩负荷都会下降，但 CS 滚刀的下降幅度明显大于 BT 滚刀。同时，CS 滚刀的最佳滚刀间距从 40 毫米增加到 50 毫米，而 BT 滚刀的最佳滚刀间距仍为 30 毫米。综合考虑滚刀的破岩载荷和破岩效率，CS 滚刀更适用于软岩地层，而 BT 滚刀更适用于硬岩地层。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.