坚硬顶板厚煤层采场来压强度分级预测方法研究

doi:10.13722/j.cnki.jrme.2019.0094

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摘要采场来压强度预测是矿压灾害防治的重要组成部分，是岩层控制的主要依据。首次定义矿压显现强度指数，并据此提出坚硬顶板厚煤层采场来压强度分级预测新方法。根据大同矿区坚硬顶板厚煤层开采实践，以远场高位结构失稳条件为核心，综合考虑影响矿压显现的基础指标和强化条件，建立坚硬顶板厚煤层采场矿压显现分级预测指标体系。基于模糊数学理论，构建矿压显现强度分级预测模型，并给出不同因素4个不同级别的量化指标。应用该方法对同忻煤矿坚硬顶板特厚煤层8105工作面矿压显现强度进行预测，预测结果与开采实践较吻合，应用研究表明，该方法可准确地预测坚硬顶板厚煤层工作面矿压显现特征。矿压显现强度指数分级预测方法指标体系普适、全面、系统，指标参数分级划分详实、可操作，该方法可为其他矿区坚硬顶板厚煤层采场来压强度预测、顶板管理等提供理论参考。

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	霍丙杰1
	荆雪冬1
	于斌2
	韩军1

关键词 ：采矿工程, 坚硬顶板, 厚煤层采场, 矿压显现, 强度指数, 分级预测

Abstract：Prediction of the stope weighting intensity is an important part of mine pressure disaster prevention and control and a main basis of strata control. A strata strength index was defined and a new method for classification forecasting of strata behaviors of thick coal seams with hard roofs was put forward. According to the mining practice in Datong mining area，a classification and prediction index system of strata behaviors of thick seams with hard roofs was established by taking the instability condition of far-field high-level structure as the core and taking into account the basic indexes and strengthening conditions that affect the strata behaviors. Based on the fuzzy mathematics theory，a classification forecasting model of the strata behaviors was established，and four different levels of quantitative indexes for different factors were given. The proposed method was applied to predict the weighting strength of 8105 working face of the extra-thick coal seam with a hard roof in Tongxin coal mine. It is shown that the predicted result is in good agreement with the mining practice and that the method can accurately predict strata behaviors in hard roof thick coal seams. The index system of the classification and prediction method of the weighting strength index is universal，comprehensive and systematic，and the classification of index parameters is detailed and operable. The proposed method can provide theoretical reference for the prediction of the stope weighting intensity and the management of roofs of thick seams with hard roofs in other mining areas.

Key words： mining engineering hard roof stope with thick coal seam strata behaviors intensity index classification forecasting

引用本文:

霍丙杰1，荆雪冬1，于斌2，韩军1. 坚硬顶板厚煤层采场来压强度分级预测方法研究[J]. 岩石力学与工程学报, 2019, 38(9): 1828-1835.
HUO Bingjie1，JING Xuedong1，YU Bin2，HAN Jun1. A classification forecasting method for the weighting intensity of stopes of thick coal seams with hard roofs. , 2019, 38(9): 1828-1835.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2019.0094 或 http://www.rockmech.org/CN/Y2019/V38/I9/1828

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