Similar simulation test of the mechanical properties of layered composite rock mass

IF 3.5 3区工程技术 Q3 ENERGY & FUELS Energy Science & Engineering Pub Date : 2024-10-23 DOI:10.1002/ese3.1869

Jichun Kang, Jiayi Guo, Meng Wang, Sijiang Wei, Yajun Xin

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Abstract

Most of the mine roadways in China are located in layered rock mass. To study the mechanical properties of a layered rock mass, the uniaxial compression test was carried out on the layered composite rock mass composed of sand and paraffin. The results showed that the locations of the high- and low-strength rocks were independent of the strength of the layered composite rock. The main failure site was not affected by the combination mode. Failure was mainly concentrated in the low-strength rock. The strengths of low- and high-strength rocks determined the lower and upper limits of the strength of the layered rock, respectively. When the thickness of the layered high-strength composite rock was >60%, the layered composite rock strength tended to be high; conversely, layered composite rock strength lowered the rock strength, and with increasing thickness, the layered composite rock strength was significantly enhanced. From the perspective of energy conversion, the effect of the thickness of the high-strength rock mass on the strength of the layered composite rock mass was analyzed.

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层状复合岩体力学性能的类似模拟试验

中国大多数矿山巷道都位于层状岩体中。为了研究层状岩体的力学性能，对砂和石蜡组成的层状复合岩体进行了单轴压缩试验。结果表明，高强度和低强度岩石的位置与层状复合岩体的强度无关。主要破坏部位不受组合模式的影响。破坏主要集中在低强度岩石上。低强度岩石和高强度岩石的强度分别决定了层状岩石的强度下限和上限。当分层高强度复合岩厚度为>60%时，分层复合岩强度趋于高；反之，分层复合岩强度降低，随着厚度的增加，分层复合岩强度明显增强。从能量转换的角度，分析了高强度岩体厚度对分层复合岩体强度的影响。

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来源期刊

Energy Science & Engineering Engineering-Safety, Risk, Reliability and Quality

CiteScore

6.80

自引率

7.90%

发文量

298

审稿时长

11 weeks

期刊介绍： Energy Science & Engineering is a peer reviewed, open access journal dedicated to fundamental and applied research on energy and supply and use. Published as a co-operative venture of Wiley and SCI (Society of Chemical Industry), the journal offers authors a fast route to publication and the ability to share their research with the widest possible audience of scientists, professionals and other interested people across the globe. Securing an affordable and low carbon energy supply is a critical challenge of the 21st century and the solutions will require collaboration between scientists and engineers worldwide. This new journal aims to facilitate collaboration and spark innovation in energy research and development. Due to the importance of this topic to society and economic development the journal will give priority to quality research papers that are accessible to a broad readership and discuss sustainable, state-of-the art approaches to shaping the future of energy. This multidisciplinary journal will appeal to all researchers and professionals working in any area of energy in academia, industry or government, including scientists, engineers, consultants, policy-makers, government officials, economists and corporate organisations.