基于地下调查的收敛控制方法在闸道设计中的适用性分析

IF 1.2 4区工程技术 Q3 MINING & MINERAL PROCESSING

Archives of Mining Sciences Pub Date : 2023-07-20 DOI:10.24425/ams.2019.131065

A. Walentek, Badania Dołowe

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引用次数: 4

摘要

巷道的稳定性是影响长壁系统开采硬煤过程的关键因素之一。在钻井阶段，设计和应用错误的闸道支架可能会对闸道的功能和整个存在过程中工作人员的安全产生不利影响。本文介绍了在四个长壁回采巷道钻井阶段进行的地下试验和观测结果，如：回采巷道的收敛、分层和顶板岩石的断裂带范围。所获得的测试结果是评估在门道支护设计中使用收敛控制方法的可能性的基础。该方法基于三种相互依存的关系，如：地面反应曲线（GRC）、纵向位移剖面（LDP）和支撑特征曲线（SCC）。所有计算都是在第二阶段程序中使用基于有限元法（FEM）的数值建模进行的。

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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Analysis of the Applicability of the Convergence Control Method for Gateroad Design Based on Conducted Underground Investigations

The stability of gateroads is one of the key factors for the mining process of hard coal by a longwall system. Wrong designed and applied the gateroad support at the stage of drilling, may adversely affect the functionality of the gateroad and the safety of the crew throughout its existence. The article presents the results of the underground tests and observations such as: convergence of the gateroad, stratification and the fractured zone range in the roof rocks, carried out in four longwall gateroads at the stage of their drilling. The obtained test results were the basis for the assessment of the possibility of using a convergence control method in the design of the gateroad support. The method is based on three interdependent relation-ships, such as: Ground Reaction Curve (GRC), Longitudinal Displacement Profile (LDP), and a Support Characteristic Curve (SCC). All calculations were performed using numerical modeling in the Phase2 program, based on the finite element method (FEM).

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来源期刊

Archives of Mining Sciences 工程技术-矿业与矿物加工

CiteScore

2.40

自引率

16.70%

发文量

审稿时长

20 months

期刊介绍： Archives of Mining Sciences (AMS) is concerned with original research, new developments and case studies in mining sciences and energy, civil engineering and environmental engineering. The journal provides an international forum for the publication of high quality research results in: mining technologies, mineral processing, stability of mine workings, mining machine science, ventilation systems, rock mechanics, termodynamics, underground storage of oil and gas, mining and engineering geology, geotechnical engineering, tunnelling, design and construction of tunnels, design and construction on mining areas, mining geodesy, environmental protection in mining, revitalisation of postindustrial areas. Papers are welcomed on all relevant topics and especially on theoretical developments, analytical methods, numerical methods, rock testing, site investigation, and case studies.