Substantiation of efficiency of use of carbon-fiber reinforcedplastic fasteners for mining products in Western Donbass mines

V. Bondarenko, I. Kovalevska, H. Symanovych, Y. Tsivka, I. Sheka
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引用次数: 1

Abstract

Purpose. To analyze the possibility of using support made of composite materials and evaluate its prospects for mine workings in coal mines. Conduct a comparative analysis of the physical and mechanical properties of carbon fiber and metal support, as well as compare their features. Determine the possibility of using a new composite lining for mine workings in the conditions of mines in the Western Donbas. Research methodology. An analysis of fastening materials was carried out and a general assessment was obtained, thanks to the physical and mechanical properties. An analysis of the stress-strain state of the possible use of an arched composite fastening of a circular cross section was carried out and the expediency of its use for a fastening system in difficult mining and geological conditions was determined. Research results. A detailed comparative analysis of the stress-strain state of a layered mass after the passage of a mine working was carried out using a new material in the fastening system. As a result of the study, it was concluded that in order to solve the problem of uneven distribution of rock pressure around the working, it is better to use a new composite fastening. The advantages and dis-advantages of the innovative lining for the mine workings of coal mines in the Western Donbas are assessed. A limiting factor has been identified that today has a negative impact on the widespread use of this material, namely the high cost of carbon fibers. It was concluded that when using a composite lining of a circular cross section, it is possible to achieve an increase in the rate of workings, a decrease in the labor intensity of work and an improvement in the working conditions of miners in difficult mining and geological conditions. Scientific novelty. The regularities of the stress-strain state of a layered massif with an arched composite lining are determined in relation to the possible use of working support in zones of uneven distribution of rock pressure. Practical value. According to the results of the study, it was found that when using an arched composite lining, it is possible to achieve an increase in productivity, ensure the reliability of support for the goaf and improve the working conditions of miners.
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顿巴斯西部矿区矿产品碳纤维增强塑料紧固件使用效率的验证
目的。分析了复合材料支架在煤矿中应用的可能性,评价了复合材料支架在煤矿作业中的应用前景。对碳纤维和金属支架的物理力学性能进行对比分析,比较其特点。确定在顿巴斯西部矿井的条件下使用一种新的复合衬里的可能性。研究方法。对紧固材料进行了分析,并根据其物理和机械性能进行了总体评估。对圆形截面拱形复合材料紧固系统可能使用的应力-应变状态进行了分析,确定了其在采矿和地质条件困难的紧固系统中的适用性。研究的结果。采用一种新型材料,对某矿巷道施工后层状岩体的应力-应变状态进行了详细的对比分析。研究结果表明,为了解决工作面周围岩体压力分布不均匀的问题,最好采用新型复合紧固方式。对顿巴斯西部煤矿采用创新衬砌的优缺点进行了评价。已经确定了一个限制因素,今天对这种材料的广泛使用产生了负面影响,即碳纤维的高成本。结果表明,采用圆形截面复合衬砌,可以提高采掘率,降低劳动强度,改善采矿条件和地质条件困难的矿工的劳动条件。科学的新奇。研究了层状岩体拱砌复合衬砌的应力-应变状态规律,并与岩体压力分布不均匀区工作支护的可行性进行了比较。实用价值。研究结果表明,采用拱形复合衬砌可以提高生产效率,保证采空区支护的可靠性,改善矿工的劳动条件。
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