连续采煤机防煤爆专用模块化防护结构的开发

IF 2.1 Q2 ENGINEERING, CIVIL International Journal of Protective Structures Pub Date : 2022-02-10 DOI:10.1177/20414196211069574
A. Remennikov, Dulara Madupushpa Kalubadanage, Xiaohan Yang, T. Ren
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引用次数: 1

摘要

在澳大利亚,随着采矿进入深部矿床,突煤和突煤等地质灾害正成为煤矿工人关注的主要问题。地质灾害的发生涉及喷出煤块,有时还会喷出大量有害气体,如甲烷和二氧化碳。虽然在巷道开发之前对煤层和邻近地层进行减压和除气非常重要,并安装合适的支撑系统,如钢网和螺栓,但最后一道保护措施将是在连续矿工(CM)上安装保护罩,这通常用于巷道开发,以保护矿工免受冲击或突出造成的煤和岩石的致命动态影响。本文介绍了一种新型的煤矿井下混凝土防护模块化结构的设计、制造和试验。所开发的防护系统可以在地下开采环境中方便地组装,并在发生冲击地压时提供高水平的防飞屑危害防护。大量的实验程序和数值模拟验证了该防护系统对单一和多个煤岩和弹丸的高速冲击载荷的高性能。
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The development of specialised modular protective structure on continuous miners against coal burst hazards
As mining progresses into deep ore deposits in Australia, geo-hazards such as coal burst and outbursts are becoming a major concern for mine workers. The occurrence of geo-hazards involved the ejection of coal lumps and sometimes large volumes of hazardous gases such as methane and carbon dioxide. Whilst it is extremely important to de-stress and de-gas the seam and adjacent strata before roadway development and install competent support systems such as steel mesh and bolt, the last line of protection will be the installation of a protective canopy on the Continuous Miner (CM), which is typically used for roadway developments, to shield mine workers from these deadly dynamic impacts of coal and rock resulting from a burst or outburst. This paper aims to introduce the design, manufacture and testing of an innovative modular protective structure on the CM in underground coal mines. The developed protective system can be easily assembled in the underground mining environment and provide a high level of protection against flying debris hazards in the event of a coal burst. The extensive experimental program and numerical simulations have confirmed the high performance of the protective system against high-speed impact loading by single and multiple coal rocks and projectiles.
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来源期刊
CiteScore
4.30
自引率
25.00%
发文量
48
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