Study on Mine Earthquake Prediction Based on Numerical Simulation of Rock Fracture Evolution

IF 3.5 3区工程技术 Q3 ENERGY & FUELS

Energy Science & Engineering Pub Date : 2025-02-23 DOI:10.1002/ese3.70031

Xiu-Feng Zhang, Wei Li, A-Tao Li, Feng Gao, Ning Zhang, Xiang Li, Yang Chen, Chuan-Cheng Liu, Chao-Hong Shi, Feng-Jun Han, Bao-Qi Wang

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引用次数: 0

Abstract

The deformation and instability of overlying strata is the root cause of roof dynamic disasters. Therefore, it is necessary to study the geomechanical behavior of overlying strata and the evolution law of three-dimensional fracture morphology for preventing rock burst disasters and identifying the source of mine earthquakes. To solve the problem of strong mine earthquakes in Shilawusu 1208 working face (SLWS–1208) during mining, this paper takes the mechanical mechanism of the “O–X” fracture morphology of overlying strata as the starting point to discuss the deformation, instability, and failure characteristics of overlying strata and the occurrence mechanism of mine earthquake. First, a fine stope model is established according to the geology and rock strata distribution of SLWS–1208 working face. Then, using the cohesive element analysis technique and the proposed “O–X” fracture mechanics model, numerical simulation experiments are carried out to explore the spatial-temporal evolution laws of overlying strata migration and rock fracture. Finally, the mechanical analysis results are compared with the on-site microseismic monitoring data, and the prediction of mine seismic events and the quantitative evaluation of mine earthquake magnitude are realized.

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基于岩石断裂演化数值模拟的矿震预测研究

上覆岩层的变形失稳是顶板动力灾害发生的根本原因。因此，研究上覆岩层的地质力学行为和三维裂隙形态演化规律，对于预防冲击地压灾害和识别矿震震源是十分必要的。针对石拉乌素1208工作面（SLWS-1208）在开采过程中出现的强矿震问题，本文以上覆岩层“O-X”型断裂形态的力学机理为出发点，探讨上覆岩层变形失稳破坏特征及矿震发生机理。首先，根据SLWS-1208工作面地质和岩层分布，建立了精细采场模型；然后，利用内聚元分析技术和提出的“O-X”断裂力学模型，进行数值模拟实验，探讨上覆岩层迁移与岩石断裂的时空演化规律。最后，将力学分析结果与现场微震监测数据进行对比，实现了矿山地震事件的预测和矿山地震震级的定量评价。

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

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.